Articles by Naveen Kadian on ArticleSnatch.com

Recovering a corrupt InnoDB table in MySQL

Wed, 12 May 2010 01:14:09 -0400

The MySQL database is one of the most used database engines in the world. The reasons behind this are – apart from being an open sourced database – its scalability, flexibility, high availability, ability to carry out robust transactions, and so on. However, sometimes a MySQL data can get corrupt and inaccessible. At times, when you try to open a database table, it fails to do so. This may happen if the database that you are trying to access is corrupt. In such situations, you should try to take appropriate measures to Repair MySQL Database. However, if you are unable to do so, then you should consider using a third-party MySQL repair tool to recover MySQL database. Consider a scenario wherein you try to open an InnoDB table but are unable to do so. An error message is displayed, that is: “#1051 - Unknown table table_name” Cause: The reason for this error message is that the InnoDB table may have got corrupt because of various reasons such as virus infection, human error, abrupt system shutdown when the database is open, etc. When an InnoDB table fails, the entire database will not start. **End Summary** Topics: MySQL repair]]> repair MySQL]]> MySQL database recovery]]> MySQL database recovery software]]> recover MySQL]]> repair MySQL]]>]]> About the Author: ]]> Naveen Kadian is a self employed Internet entrepreneur and product reviewer Stellar Phoenix Database Recovery For MySQL is the premier Recover MySQL tool that can instantly repair and restore corrupt MySQL databases. It supports InnoDB (.ibdata, .ibd and .frm) and MyISAM (.myd, .myi and .frm) files.

MySQL Log Displays Error 126

Mon, 10 May 2010 03:16:42 -0400

MySQL log is the best way to identify the problems encountered by MySQL user while starting, closing, or running MySQLD (MySQL Server). These log files are saved in MySQLD data directory and can be erased using FLUSH LOGS command. The information saved in these files can also be used to check the exact reason for database table corruption. In most cases, this informations proves fruitful and allows the user to repair the table. However, there are some situations, where the user is unable to repair the table and the records saved in it remain inaccessible. To get past such situations, an ideal option is to restore the table from an updated backup. However, if a comprehensive database table backup does not exist, then you will need to repair the database using a powerful MySQL Repair application. To elaborate the above case, consider a practical scenario where your MyISAM table gets corrupted and becomes unreadable. On viewing the MySQL log, you view the below error message: “Got error 126 when reading table '. **End Summary** Topics: MySQL repair]]> repair MySQL]]> MySQL database recovery]]> MySQL database recovery software]]> recover MySQL]]> repair MySQL]]>]]> About the Author: ]]> Naveen Kadian is a self employed Internet entrepreneur and product reviewer Stellar Phoenix Database Recovery For MySQL is the premier Recover MySQL tool that can instantly repair and restore corrupt MySQL databases. It supports InnoDB (.ibdata, .ibd and .frm) and MyISAM (.myd, .myi and .frm) files.

Resolving InnoDB Error 'The tablespace free space info is corrupt'

Thu, 06 May 2010 07:19:55 -0400

InnoDB is a MySQL storage engine and is considered more reliable over its counterparts for the main reason that it supports ACID transactions. InnoDB can recover from problems like unexpected shutdown by replaying the log files. But irrespective of these enhancements, InnoDB stored MySQL databases are susceptible to corruption. InnoDB database engine might fall in serious problems, from which it may find unable to recover from. Most of such problems can be easily resolved if a healthy backup is available. In other situations, you need to apply some other MySQL Repair solutions. Here is a true example that illustrates how a MySQL database stored on InnoDB engine behaves on getting corrupted. Let's say, you experience some issues with your MySQL database. On viewing the MySQL error log, the below warning message is observed: InnoDB: Serious error! InnoDB is trying to free page 716 InnoDB: though it is already marked as free in the tablespace! InnoDB: The tablespace free space info is corrupt. InnoDB: You may need to dump your InnoDB tables and recreate the whole InnoDB: database! Explanation Unlike MyISAM that stores data of tables in files, InnoDB uses tablespace. **End Summary** Topics: MySQL repair]]> repair MySQL]]> MySQL database recovery]]> MySQL database recovery software]]> recover MySQL]]> repair MySQL]]>]]> About the Author: ]]> Naveen Kadian is a self employed Internet entrepreneur and product reviewer Stellar Phoenix Database Recovery For MySQL is the premier Recover MySQL tool that can instantly repair and restore corrupt MySQL databases. It supports InnoDB (.ibdata, .ibd and .frm) and MyISAM (.myd, .myi and .frm) files.

Recovering MySQL database after abrupt system shutdown

Wed, 05 May 2010 02:33:17 -0400

MySQL database, because of its fast performance, high reliability, and ease of use, is the world's most used open source database. If you combine all these features with the open source database feature, you have got all the ingredients of a complete relational database management system (RDBMS). However, nothing is perfect in this world, and the same is true for this people friendly, open-sourced database. At times, the MySQL database can get corrupt because of various reasons such as virus infections, power outages, hardware failure, abrupt exiting MySQL while the write operating is in progress, etc. In such cases, you should replace the corrupted database with its updated backup. However, if the backup is not updated then you should consider using a third-party Repair MySQL software to recover MySQL database. Consider a scenario wherein you are working on a MySQL database. You have to insert few records in a table. Suddenly there is a power cut and the system shuts down abruptly. When the power is restored, you run the Insert query and it fails to execute. An error message is displayed, that is: “Could not insert new word matches DEBUG MODE SQL Error : 1016 Can't open file: 'my_table.MYI'. **End Summary** Topics: MySQL repair]]> repair MySQL]]> MySQL database recovery]]> MySQL database recovery software]]> recover MySQL]]> repair MySQL]]>]]> About the Author: ]]> Naveen Kadian is a self employed Internet entrepreneur and product reviewer Stellar Phoenix Database Recovery For MySQL is the premier Recover MySQL tool that can instantly repair and restore corrupt MySQL databases. It supports InnoDB (.ibdata, .ibd and .frm) and MyISAM (.myd, .myi and .frm) files.

Recovering corrupted MyISAM file in MySQL 5.0

Fri, 30 Apr 2010 07:31:12 -0400

MySQL is one of the most popular open-source database in the world. The reasons for this is its availability, performance, sound transactional support, etc. It offers three types of database engines, MyISAM, InnoDB, and MySQL Archive. The MyISAM table is the default table type that is fast, simple to use, and allows full-text searching. Though MyISAM table is reliable, it can become corrupt and, thus, inaccessible after a crash. In such cases, you should use Repair Table command to MySQL Repair table. However, if you are still not able to recover MySQL database then you should opt for a third-party software. Consider a scenario wherein you have MySQL 5.0 installed on your system. You run the myisamchk command to check a table and an error message is displayed, that is: “clients are using or haven't closed the table properly.” Cause: The root cause for the aforementioned error message is that MyISAM index file has not been closed properly. It could be due to following reasons: A MyISAM table has been copied without using Lock Tables and Flush Tables command. MySQL crashed while an update was being written on the table. **End Summary** Topics: MySQL repair]]> repair MySQL]]> MySQL database recovery]]> MySQL database recovery software]]> recover MySQL]]> repair MySQL]]>]]> About the Author: ]]> Naveen Kadian is a self employed Internet entrepreneur and product reviewer Stellar Phoenix Database Recovery For MySQL is the premier Recover MySQL tool that can instantly repair and restore corrupt MySQL databases. It supports InnoDB (.ibdata, .ibd and .frm) and MyISAM (.myd, .myi and .frm) files.

Resolving âIncorrect key file for table..â Error in MySQL

Thu, 29 Apr 2010 05:56:26 -0400

In MySQL relational database management system, you can use different storage engines for effective storage and management of your data. MyISAM is a default storage engine in MySQL, which is based on older ISAM code. However, it has several useful extensions. Every MyISAM table is stored in three files on the hard drive. The definition of the table is stored in .frm file. In some situations, the MyISAM tables gets damaged due to numerous reasons and you cannot access the stored data. It leads to severe data loss situations and requires MySQL Recovery, if there is not backup in place. When you try to access, update, or save a MySQL table, you may come across the below error message: “#1034 - Incorrect key file for table ; try to repair it” The above error message occurs with the MyISAM tables, which has utf8 fields, several indexes, and the fulltext. After the above error message, you cannot perform any operation on the particular table and it becomes completely unusable. In order to retrieve data from the corrupted database table, you must first identify what is causing this problem and then Repair MySQL Database by resolving it. **End Summary** Topics: MySQL repair]]> repair MySQL]]> MySQL database recovery]]> MySQL database recovery software]]> recover MySQL]]> repair MySQL]]>]]> About the Author: ]]> Naveen Kadian is a self employed Internet entrepreneur and product reviewer Stellar Phoenix Database Recovery For MySQL is the premier Recover MySQL tool that can instantly repair and restore corrupt MySQL databases. It supports InnoDB (.ibdata, .ibd and .frm) and MyISAM (.myd, .myi and .frm) files.

Fixing InnoDB Database Page Corruption

Tue, 27 Apr 2010 07:38:29 -0400

MySQLD (MySQL Sever) crash can occur when it accesses or encounters a corrupt InnoDB database page. In most cases of MySQLD crash, the database becomes unmountable, rendering to inaccessibility of all its saved records. In addition, the server exhibits an error message that consists of information related to corrupt database page. An ideal way to get past the error message is by restoring the database from a valid database backup. But, there are numerous situations wherein the database user either forgets to create a database backup or the backup fails to restore required data. In such situations, an InnoDB database user needs to repair the database using an advanced third-party MySQL Recovery application. For deep analysis of the above scenario, consider a practical case wherein you try to mount your MySQL database and encounter the below error message: “Version: '5.0.20-nt' socket: '' port: 3306 MySQL Community Edition (GPL) InnoDB: Error: page n:o stored in the page read in is 2719, should be 3383! InnoDB: Error: page n:o stored in the page read in is 2720, should be 3384! InnoDB: Database page corruption on disk or a failed InnoDB: file read of page 3384. **End Summary** Topics: MySQL repair]]> repair MySQL]]> MySQL database recovery]]> MySQL database recovery software]]> recover MySQL]]> repair MySQL]]>]]> About the Author: ]]> Naveen Kadian is a self employed Internet entrepreneur and product reviewer Stellar Phoenix Database Recovery For MySQL is the premier Recover MySQL tool that can instantly repair and restore corrupt MySQL databases. It supports InnoDB (.ibdata, .ibd and .frm) and MyISAM (.myd, .myi and .frm) files.

Recovering MySQL database from the ERROR 1146 (42S02) error

Mon, 26 Apr 2010 07:27:26 -0400

MySQL is a relational database management system (MySQL) that acts as a server providing multi-user access to many databases. It is used by some very high-traffic websites like Flickr, Facebook, Wikipedia, Google, Nokia, YouTube, etc. MySQL is preferred by quite a lot of users over the world for some of its distinguished features such as multiple storage engines, commit grouping, etc. However, nothing is perfect in this world. Sometimes, when you try to open a database table, it fails to open. This may happen if the database that you are trying to access is corrupt. In such situations, you should try to take appropriate measures to repair MySQL database. However, if you are unable to do so, you should consider using a MySQL Recovery tool. Consider a scenario wherein you start the MySQL server and the following error message is displayed. “Default storage engine is not available.” When you encounter the aforementioned error message, you reinstall the server without removing its data directory. Now, when you start the MySQL server it runs perfectly. **End Summary** Topics: MySQL repair]]> repair MySQL]]> MySQL database recovery]]> MySQL database recovery software]]> recover MySQL]]> repair MySQL]]>]]> About the Author: ]]> Naveen Kadian is a self employed Internet entrepreneur and product reviewer Stellar Phoenix Database Recovery For MySQL is the premier Recover MySQL tool that can instantly repair and restore corrupt MySQL databases. It supports InnoDB (.ibdata, .ibd and .frm) and MyISAM (.myd, .myi and .frm) files.

Problem in Accessing Table with UTF-8 Data in MySQL

Thu, 22 Apr 2010 07:09:47 -0400

MySQL version 4.1 introduced two new character sets for storing Unicode data: UCS-2 and UTF-8. Among them, UTF-8 is the one that uses one to three bytes per character and extends US-ASCII. Tables using UTF-8 data often become inaccessible or unreadable. This generally occurs when MySQL engine cannot access them, most likely when the table in issue is corrupted. The further article describes few such scenarios when a MySQL database table containing UTF-8 data can get corrupted and the possible solutions to Repair MySQL Database data from such corrupted tables. As one of the realistic problems, a MySQL user might experience UTF-8 table corruption when he/she performs one of the following practices: He/she change the existing structure of database table He/she change 'ft_min_word_len' and then rebuild the database indexes He/she run UPDATE LOW_PRIORITY command After any of the above operations is done, MySQL user observes that the specific table cannot be accessed. On each attempt of opening the table, it returns the following or similar error message on screen: “Incorrect key file for table: 'Table_Name'; try to repair it.” Where, 'Table_Name' must be replaced by the exact name of affected database table. **End Summary** Topics: MySQL repair]]> repair MySQL]]> MySQL database recovery]]> MySQL database recovery software]]> recover MySQL]]> repair MySQL]]>]]> About the Author: ]]> Naveen Kadian is a self employed Internet entrepreneur and product reviewer Stellar Phoenix Database Recovery For MySQL is the premier Recover MySQL tool that can instantly repair and restore corrupt MySQL databases. It supports InnoDB (.ibdata, .ibd and .frm) and MyISAM (.myd, .myi and .frm) files.

Rectifying âError No. 1033â in MySQL

Wed, 21 Apr 2010 07:08:01 -0400

Are you unable to access a MySQL database table? Is your MySQL database table inaccessible after upgrading to later version of the application? This behavior may occur due to corruption of MySQL table. After corruption, MySQL can not read the table and thus it displays various error messages. At this point, the table becomes completely inaccessible and you come across severe data loss situations. In order to extract data from inaccessible MySQL table, you need to have an absolute backup. However, if backup is not available or updated, it becomes essential to Repair MySQL Database using appropriate tools. Consider the below scenario: You click on a database table to open and access it. You try to open a MySQL database table after upgrading to a later version of MySQL application. In both the above scenarios, you encounter the following error message and the table can not be accessed: “Error No. 1033 Incorrect information in file: ” After this, you can not access the contents of the table and encounter data loss. In order to access your precious data saved in the table, you need to Repair MySQL table by resolving this issue. **End Summary** Topics: MySQL repair]]> repair MySQL]]> MySQL database recovery]]> MySQL database recovery software]]> recover MySQL]]> repair MySQL]]>]]> About the Author: ]]> Naveen Kadian is a self employed Internet entrepreneur and product reviewer Stellar Phoenix Database Recovery For MySQL is the premier Recover MySQL tool that can instantly repair and restore corrupt MySQL databases. It supports InnoDB (.ibdata, .ibd and .frm) and MyISAM (.myd, .myi and .frm) files.

Crash Recovery Failed to Repair Corrupt InnoDB Database

Sat, 17 Apr 2010 06:26:21 -0400

MySQL is considered to be the most stable application that is used to create and maintain databases. However, there are still certain problems that are encountered, like the application might crash and result in corruption of database. Such situations occur during operating system malfunction, MySQL bugs, and power failure. In most situations of application malfunction, a MySQL database user encounters an error message, after which the entire database becomes unmountable. In such situations, MySQL automatically attempts to perform a crash recovery to comprehensively repair the database. While the recovery is successful in most cases, it might also fail, in a few situations. To access the database in such cases, a database user needs to restore the data from an up-to-date database backup. However, in case no backup is available or backup is not displaying satisfactory results, the user needs to opt for an effective third-party Repair MySQL application. To get into the depth of the above situation, consider a practical case wherein you are working on your InnoDB database and encounter a power failure. Now, when you try to mount your database, it does not open. **End Summary** Topics: MySQL repair]]> repair MySQL]]> MySQL database recovery]]> MySQL database recovery software]]> recover MySQL]]> repair MySQL]]>]]> About the Author: ]]> Naveen Kadian is a self employed Internet entrepreneur and product reviewer Stellar Phoenix Database Recovery For MySQL is the premier Recover MySQL tool that can instantly repair and restore corrupt MySQL databases. It supports InnoDB (.ibdata, .ibd and .frm) and MyISAM (.myd, .myi and .frm) files.

MySQL Database Corrupted Post Upgrading to 5.0.27

Fri, 16 Apr 2010 06:16:44 -0400

Upgrading to a newer MySQL version is primarily done to take benefit of all the improved features of its newer versions. This helps you to increase the database performance, add to safety, and allows accessing quick results. But it is always recommended that before you upgrade MySQL server, backup your database, otherwise, you may encounter serious database corruption. This is because after database corruption, one of the best and safest solution is to restore database from backup. But it becomes frustrating when you cannot restore from backup because the file is either corrupted or not updated enough to offer all the required data. To deal with such scenarios of backup incompetency, you need solutions like, MySQL Repair software. As a symptom of corruption, you may observe the database records inaccessible and/or database unmountable. For further illustration, we'll now discuss a realistic problem when you upgrade to MySQL 5.0.27 running on Innodb engine. After the upgrade is done, when you try to access the database tables, you get the below error message: “#1033 - Incorrect information in file 'file_name'” Where, file_name refers to the name of affected file. Cause MySQL upgrade is either incomplete or has been improper. **End Summary** Topics: MySQL repair]]> repair MySQL]]> MySQL database recovery]]> MySQL database recovery software]]> recover MySQL]]> repair MySQL]]>]]> About the Author: ]]> Naveen Kadian is a self employed Internet entrepreneur and product reviewer Stellar Phoenix Database Recovery For MySQL is the premier Recover MySQL tool that can instantly repair and restore corrupt MySQL databases. It supports InnoDB (.ibdata, .ibd and .frm) and MyISAM (.myd, .myi and .frm) files.

InnoDB Tables Locked Post MySQL Database Damage

Wed, 14 Apr 2010 05:32:52 -0400

MySQL database corruption can result in fatal consequences, leading to inaccessibility of records saved in database components, like tables. Few most common reasons for corruption could be improper shutdown of the system/MySQLD, concurrent modification of InnoDB tables, and virus infection. To access records saved in database components post MySQL database corruption, you need to restore database from an updated backup. However, if no database backup is available or backup falls short of restoring the database, then you will need to opt for an effective third-party Repair MySQL Database application. To illustrate the above issue, consider, you create a MySQL database with five InnoDB tables. The database gets corrupted due to improper system shutdown of MySQLD. When you try to open a InnoDB table using the below command, it does not open: “mysql> select count(*),date from Employee where date > 20090216 group by date order by date;” In addition, other database tables also get locked after MySQL database corruption. The records saved in the tables become inaccessible after they get locked. Cause: MySQL database corruption locks the tables. **End Summary** Topics: MySQL repair]]> repair MySQL]]> MySQL database recovery]]> MySQL database recovery software]]> recover MySQL]]> repair MySQL]]>]]> About the Author: ]]> Naveen Kadian is a self employed Internet entrepreneur and product reviewer Stellar Phoenix Database Recovery For MySQL is the premier Recover MySQL tool that can instantly repair and restore corrupt MySQL databases. It supports InnoDB (.ibdata, .ibd and .frm) and MyISAM (.myd, .myi and .frm) files.

Rectifying 'NTDS ISAM 467' Error in MySQL

Tue, 13 Apr 2010 07:12:12 -0400

Are you getting error 'NTDS ISAM 467 database corruption' error while accessing MySQL database tables? This problem generally occurs with Windows 2003 Server domain controllers. It indicates MySQL database corruption and renders all your valuable data inaccessible. This behavior causes critical data loss and needs an updated backup to restore data from. But, if the backup is not available or usable, Repair MySQL Database using reliable applications. In a practical scenario, you may repeatedly get the below event in the Application Event Log of MySQL application, while accessing database tables: “Event Type: Error Event Source: NTDS ISAM Event Category: Database Corruption Event ID: 467 Description: NTDS (416) NTDSA: Index LCL_ABVIEW_index0000081A of table is corrupted (0).” You can not synchronize the local domain controller with source domain controller until you correct this problem. After Event ID 467, you may face further error message that states: “Event Type: Error Event Source: NTDS Replication Event Category: Replication Event ID: 2108 User: NT AUTHORITY\ANONYMOUS LOGON Description: This event contains REPAIR PROCEDURES for the 1084 event which has previously been logged. This message indicates a specific issue with the consistency of the Active Directory database on this replication destination. **End Summary** Topics: MySQL repair]]> repair MySQL]]> MySQL database recovery]]> MySQL database recovery software]]> recover MySQL]]> repair MySQL]]>]]> About the Author: ]]> Naveen Kadian is a self employed Internet entrepreneur and product reviewer Stellar Phoenix Database Recovery For MySQL is the premier Recover MySQL tool that can instantly repair and restore corrupt MySQL databases. It supports InnoDB (.ibdata, .ibd and .frm) and MyISAM (.myd, .myi and .frm) files.

Resolving âIncorrect information...â Error

Fri, 09 Apr 2010 07:38:43 -0400

An error message while opening an InnoDB database table occurs when an InnoDB engine in unable to open the table. The two possible reasons for this could be corruption or missing of that particular database table. In situations where the table is missing, you will need to need to restore the table from an updated backup. However, in case of table corruption, you can repair the table by using InnoDB force recovery command. In most cases, this command repairs the corrupted table and brings it back in reusable state. But if the command fails to repair corrupted InnoDB table, then you will need to opt for an effective third-party Repair MySQL Database application. Consider a practical case to elaborate the above problem. You create an InnoDB table (Employee) and use it for shared hosting. The table worked fine until you encounter the below error message: “#1033 - Incorrect information in file: './foo/bar.frm'” The above message makes the records saved in the database table inaccessible. In addition, the same error message flashes on your screen each time you try to access the Employee table. **End Summary** Topics: MySQL repair]]> repair MySQL]]> MySQL database recovery]]> MySQL database recovery software]]> recover MySQL]]> repair MySQL]]>]]> About the Author: ]]> Naveen Kadian is a self employed Internet entrepreneur and product reviewer Stellar Phoenix Database Recovery For MySQL is the premier Recover MySQL tool that can instantly repair and restore corrupt MySQL databases. It supports InnoDB (.ibdata, .ibd and .frm) and MyISAM (.myd, .myi and .frm) files.

How to Repair Damaged/Corrupted MyISAM Tables?

Thu, 08 Apr 2010 04:56:37 -0400

MySQL is the most widely used RDBMS (Relations Database Management System), which uses MyISAM and InnoDB storage engines to store your valuable data. MyISAM is the standard storage engine for the MySQL databases. In some situations, MyISAM table gets damaged and all of its content become inaccessible. This behavior leads to critical data loss and you need to Repair MySQL Database to get your valuable data back. When you create a table under MySQL, three different files are created: *.frm- It stores the format of MyISAM table. *.MYD (MyData)- It stores the actual data. *.MYI (MyIndex)- This table is used to store table index. In an MyISAM table or its files gets damaged, you may come across a number of error messages, similar to the following ones: “Table 'attach_data' is marked as crashed and should be repaired” Or “Incorrect key file for table: . Try to repair it” This behavior of MyISAM table renders it inaccessible. In order to access the data from database table, you need to perform MySQL Recovery by repairing the damaged table. **End Summary** Topics: MySQL repair]]> repair MySQL]]> MySQL database recovery]]> MySQL database recovery software]]> recover MySQL]]> repair MySQL]]>]]> About the Author: ]]> Naveen Kadian is a self employed Internet entrepreneur and product reviewer Stellar Phoenix Database Recovery For MySQL is the premier Recover MySQL tool that can instantly repair and restore corrupt MySQL databases. It supports InnoDB (.ibdata, .ibd and .frm) and MyISAM (.myd, .myi and .frm) files.

Rectifying âIncorrect key file for tableâ Error in MySQL

Tue, 06 Apr 2010 07:23:22 -0400

At times, MySQL database server may damage a database table. This happens due to high load on server, various Update and Insert statements, coupled with several Select statements, or hardware issues. Database table corruption is something that should not occur, but unfortunately it does occur and leaves your data in unusable state. This causes critical data loss and needs MySQL Repair software to recover lost data. You may face MySQL database table corruption, due to any of the below reasons: Interruption of 'mysqld' writing process. Improper or unexpected shutdown of your computer (for instance, your computer crashed or got accidentally turned off). The hardware is faulty and has damaged the database tables. You are using myisamchk or other such external programs on MySQL table. There is a bug in MySQL application or MyISAM storage engine of MySQL. You can identify MySQL table corruption with various symptoms, like: You come across a number of error messages, such as: “Incorrect key file for table: . Try to repair it” MySQL queries return incomplete information or can not find the rows in table. The query execution process halts midway and you can not access data from MySQL database table. MySQL application does not start. **End Summary** Topics: MySQL repair]]> repair MySQL]]> MySQL database recovery]]> MySQL database recovery software]]> recover MySQL]]> repair MySQL]]>]]> About the Author: ]]> Naveen Kadian is a self employed Internet entrepreneur and product reviewer Stellar Phoenix Database Recovery For MySQL is the premier Recover MySQL tool that can instantly repair and restore corrupt MySQL databases. It supports InnoDB (.ibdata, .ibd and .frm) and MyISAM (.myd, .myi and .frm) files.

Resolving Error 1146 Post InnoDB Table Corruption

Mon, 05 Apr 2010 07:13:17 -0400

Corruption in InnoDB table results in an error message, which renders all stored records inaccessible. Few main causes for InnoDB table corruption are unexpected MySQL Server shutdown, virus infection, and MySQL bugs. To overcome this error message, a database user needs to restore the table from 'InnoDB Hot Backup'. However, if the user has not created any hot backup of his/her InnoDB tables, then he/she needs to use in-built repair command(s) to repair the corrupt tables. But, if the repair command(s) falls short of repairing the table, then the user needs to use an effective MySQL Repair application. Consider, your InnoDB table gets corrupted due to improper shutdown of the server. Now, when you try 'InnoDB force recovery' with value '2', you encounter the below error message stating that the actual pages do not match with the number of pages in the header: “InnoDB: Your database may be corrupt or you may have copied the InnoDB InnoDB: tablespace but not the InnoDB log files. Error: tablespace size stored in header is 978944 pages, but InnoDB: the sum of data file sizes is only 948992 pages 070724 0:11:30 InnoDB: Started; **End Summary** Topics: MySQL repair]]> repair MySQL]]> MySQL database recovery]]> MySQL database recovery software]]> recover MySQL]]> repair MySQL]]>]]> About the Author: ]]> Naveen Kadian is a self employed Internet entrepreneur and product reviewer Stellar Phoenix Database Recovery For MySQL is the premier Recover MySQL tool that can instantly repair and restore corrupt MySQL databases. It supports InnoDB (.ibdata, .ibd and .frm) and MyISAM (.myd, .myi and .frm) files.

Fixing âCould not repair this errorâ Error

Thu, 01 Apr 2010 05:08:47 -0400

Database corruption is unfortunate for any database administrator. Damage in database mainly occurs due to metadata structure corruption, improper shutdown of system or server, or malicious software like virus. Although most logical corruption in SQL Server database can be surmounted using DBCC CHECKDB repair command, there are some situations wherein the command fails to repair. These situations occur when the database is severely corrupted and beyond the repair limits of DBCC CHECKDB. In such cases, it is advisable to restore database from an updated backup. But if the backup is unavailable or deficient, then the administrator needs to search for a third-party SQL Database Recovery application. To illustrate above problem, consider a database administrator receives a database corruption error message while trying to access database. However, on trying to repair database using DBCC CHECKDB command, another error message is encountered: “Could not repair this error.” This is severity level 10 error message. As the error message states, the in-built repair command is unable to repair the database. After the above error message flashes, the data saved in the database becomes inaccessible. In addition, the same error message is encountered on every attempt to repair database, using different repair parameters. **End Summary** Topics: sql recovery]]> sql data recovery]]> sql server recovery]]> sql database recovery]]> recover sql]]> sql server databaserecovery]]> mssqlrecovery]]>]]> About the Author: ]]> Naveen Kadian is a self employed Internet entrepreneur and product reviewer. This Recover SQL utility is extremely useful when the database gets corrupted due to internal program errors, hardware malfunctioning, accidental deletion of data and more.

Tips To Resolve âoffset 0xADDRESS is invalidâ Error Message

Mon, 29 Mar 2010 07:17:44 -0400

A severity level 16 table error message occurs, while trying to open a MS SQL table, when the database table gets badly corrupted. Few causes of severe corruption of a SQL table are improper system/server shutdown, virus infection, metadata structure damage, and human mistakes. The database table records become inaccessible when a database user encounters error message with so much severity. An easy way to access table records post the above error message, is by restoring data from an updated backup. However, if the backup file is unobtainable or deficient, then a user can use DBCC CHECKDB command to repair the table. But, running this command might lead to loss of records saved in the table. To prevent any loss of records, a database user needs to repair his/her table using a third-party SQL Recovery application. The above situation can be explained better by following severity level 16 error message: “Table error: Object ID O_ID, index ID I_ID, page P_ID. Test (TEST) failed. Slot S_ID, offset 0xADDRESS is invalid.” This error message flashes on your screen when you try to open a MS SQL Server table. After the error message pops up, the table can not be opened. **End Summary** Topics: sql recovery]]> sql data recovery]]> sql server recovery]]> sql database recovery]]> recover sql]]> sql server databaserecovery]]> mssqlrecovery]]>]]> About the Author: ]]> Naveen Kadian is a self employed Internet entrepreneur and product reviewer. This Recover SQL utility is extremely useful when the database gets corrupted due to internal program errors, hardware malfunctioning, accidental deletion of data and more.

Insufficient Disk Space During Upgrade May Corrupt SQL Server Database

Fri, 26 Mar 2010 05:17:22 -0400

You may encounter SQL Server object or database corruption if you fail to provide enough disk space for the database growth while upgrading Microsoft SQL Server database. This situation may damage sysdepends table in model database and the process may stop responding. You do not receive any error message when this process fails and table corruption occurs. After corruption, the database may become inaccessible and you encounter data loss. In order to retrieve inaccessible data from MDF (Master Database File) database of SQL Server, you need to opt for MS SQL Recovery alternatives. The sysdepends is a SQL Server database table, which provides dependency relationship information between persistent objects of database. The persistent objects can be providers (database objects depend upon them) and/or dependents (they depend upon other database objects). Root of the problem This problem occurs if data file is nearly full (only a few pages are free) and file growth on data file is adjusted to 0% (percent). In this case, the upgrade process doesn't have sufficient scape to finish the upgrade of database. In such circumstances, the database is left in partially upgraded and corrupt state. **End Summary** Topics: sql recovery]]> sql data recovery]]> sql server recovery]]> sql database recovery]]> recover sql]]> sql server databaserecovery]]> mssqlrecovery]]>]]> About the Author: ]]> Naveen Kadian is a self employed Internet entrepreneur and product reviewer. This Recover SQL utility is extremely useful when the database gets corrupted due to internal program errors, hardware malfunctioning, accidental deletion of data and more.

Improper Configuration Settings in SQL Server May Cause Database Corruption

Wed, 24 Mar 2010 06:13:24 -0400

Are you unable to start Microsoft SQL Server? Is your MDF (Master Database File) of MS SQL Server is inaccessible? This behavior may occur due to inconsistency or corruption in Microsoft SQL Server database. If the SQL Server application can not be accessed, problem can be due to application crash, which may cause MDF corruption. This behavior of MS SQL Server database leads to critical data loss situations, and needs SQL Server Recovery to get your mission critical data back in working state. In case of corruption of the SQL Server database or Microsoft SQL Server application itself, the database can not be mounted or accessed successfully. There are numerous reasons, which may lead to SQL Server and SQL Server database corruption, such as virus infection, improper system shutdown, operating system failure, application malfunction, missing or damaged system files, and more. As a practical example of the above problem, you may come across the below error message when you try to start Microsoft SQL Server 2005: "Could not start the SQL Server (SQL2005) service on Local Computer Error 14001: This application has failed to start because the application configuration is incorrect. Reinstalling the application may fix this problem. **End Summary** Topics: sql recovery]]> sql data recovery]]> sql server recovery]]> sql database recovery]]> recover sql]]> sql server databaserecovery]]> mssqlrecovery]]>]]> About the Author: ]]> Naveen Kadian is a self employed Internet entrepreneur and product reviewer. This Recover SQL utility is extremely useful when the database gets corrupted due to internal program errors, hardware malfunctioning, accidental deletion of data and more.

SQL Server Database Corruption If You Run a Query with Parallel Execution Plan

Tue, 23 Mar 2010 05:28:49 -0400

You may come across Access Violation if you run an SQL query, which uses parallel execution plan in Microsoft SQL Server 2008. Access violation is an error condition, which may occur while performing general operations on the SQL database. It may occur due to application malfunction, software bug, or database corruption. It renders your database inaccessible and may cause data loss, if you don't have a complete backup to restore data from. To overcome such issues, SQL Database Recovery is required. As an example of Access Violation in Microsoft SQL Server 2008, consider the below scenario: In MS SQL Server 2008, you're running a query that includes all the below mentioned clauses: Inner join Union all Group by The database query is using parallel execution plan. You execute the query. In the above scenario, you may face access violation. And, you receive the following error message: “Location: xbmp.cpp:2038 Expression: 0 != pxteBitmap Msg 3624, Level 20, State 1, Line 2 A system assertion check has failed. Check the SQL Server error log for details. Typically, an assertion failure is caused by a software bug or data corruption. To check for database corruption, consider running DBCC CHECKDB. **End Summary** Topics: sql recovery]]> sql data recovery]]> sql server recovery]]> sql database recovery]]> recover sql]]> sql server databaserecovery]]> mssqlrecovery]]>]]> About the Author: ]]> Naveen Kadian is a self employed Internet entrepreneur and product reviewer. This Recover SQL utility is extremely useful when the database gets corrupted due to internal program errors, hardware malfunctioning, accidental deletion of data and more.

Index Corruption May Damaged Microsoft SQL Server Database

Wed, 17 Mar 2010 07:11:39 -0400

Are you getting index corruption errors in SQL Server 2000 database while running DBCC CHECKDB statement? Index is a data structure in SQL Server database, which improves the performance of database operations. SQL Server uses indexes for accessing data from the MDF (Master Database File) database. In case of corruption, SQL Server may not locate and access the data or even the database itself may get damaged. It leads to critical data loss situations and needs SQL Database Recovery to be fixed. In a practical scenario, you may come across the below error messages when you run DBCC CHECKDB statement on a MDF database that is upgraded to MS SQL Server 2000 from an earlier version: Server: Msg 8951, Level 16, State 1, Line 1 Table error: Table '' (ID ). Missing or invalid key in index '' (ID ) for the row: Server: Msg 8955, Level 16, State 1, Line 1 Data row (1:133:42) identified by (RID = (1:133:42) ) has index values ( = 0). Server: Msg 8952, Level 16, State 1, Line 1 Table error: Database '', index '.' (ID ) (index ID ). **End Summary** Topics: sql recovery]]> sql data recovery]]> sql server recovery]]> sql database recovery]]> recover sql]]> sql server databaserecovery]]> mssqlrecovery]]>]]> About the Author: ]]> Naveen Kadian is a self employed Internet entrepreneur and product reviewer. This MS SQL Recovery utility is extremely useful when the database gets corrupted due to internal program errors, hardware malfunctioning, accidental deletion of data and more.

MySQLD Read/Write Process Interrupted

Tue, 16 Mar 2010 03:10:30 -0400

MySQL Server (MySQLD) is an important program that performs almost all operations during a MySQL installation. The server is also responsible for managing and accessing records that are saved in MySQL data directory. This directory contains all the necessary information, such as, databases, tables, log files, and status files that are required by the user. Interruption in MySQLD process while it is performing some read or write operation on any MyISAM table results into corruption of that table. In such cases, the user encounters an error message while accessing the corrupted table, further resulting in inaccessibility of data saved in that table. To surmount such table corruption error messages, you need to restore data from an updated backup. However, if no backup of the table is available, then the user needs to repair the table using advanced MySQL Repair utility. Consider a practical scenario, where you run an update command on a MyISAM table. While the MySQLD was performing the updates, it crashed in between due to power outage. However, next time you try to open that table, you encounter below error message: “Incorrect key file for table: '...'. **End Summary** Topics: MySQL repair]]> repair MySQL]]> MySQL database recovery]]> MySQL database recovery software]]> recover MySQL]]> repair MySQL]]>]]> About the Author: ]]> Naveen Kadian is a self employed Internet entrepreneur and product reviewer Stellar Phoenix Database Recovery For MySQL is the premier MySQL Recovery tool that can instantly repair and restore corrupt MySQL databases. It supports InnoDB (.ibdata, .ibd and .frm) and MyISAM (.myd, .myi and .frm) files.