Posted on Tuesday, November 09, 2010 at 4:51 AM
You must have encountered the table error messages while accessing the MS SQL Server database tables. These errors occur because of some integrity issues in the database tables. Sometimes, the integrity issues can take place because of having a corrupt database. And a database can get corrupted because of various internal and external issues such as virus attacks, human errors like improper system shutdown especially when the database is open, sudden power fluctuations, data integrity issues due to mishandling the database such as changing the structure of the database, multiple users trying to change the database table simultaneously, etc. Because of the table errors you can face various problems such as partially or completely inaccessible database, retrieving corrupt records, regularly displaying error and warning messages, and so on. These problems are bound to pose serious threats especially when you are working on a real-time environment. To counter such situations, you can restore the database by overwriting it with its updated backup. However, if the backup is not the updated one then you will have to use the advanced SQL Database Recovery application to repair the corrupt database...
Posted on Tuesday, October 26, 2010 at 3:45 AM
The PFS (Page Free Space) pages in the MS SQL Server databases are used to search for free space in the database tables. It holds a byte-map which contains one byte per page that is represented by P_ID. Sometimes, you are unable to read the PFS page that can happen due to database corruption. The corruption cases are caused due to various issues such as abrupt or improper system shutdown when the database is open, virus infections, etc. In such circumstances, you should try to recover SQL database using appropriate methods. If you are unable to workaround the issue, then you should use a third-party SQL database recovery software to address the problem.
Consider a scenario wherein you are facing the following error message while working on an MS SQL Server 2000 database:
"Object ID O_ID, index ID I_ID: Page P_ID could not be processed. See other errors for details."
Cause:
The most prominent cause of this problem is that the P_ID page was marked as allocated in a PFS page. But, when the page was read, the reading failed resulting in this error...
Posted on Friday, October 15, 2010 at 4:26 AM
In the MS SQL Server databases, the IAM (Index Allocation Map), GAM (Global Allocation Map), SGAM (Shared GAM) are different types of pages that are used to store the records on the hard disks. These pages combine together in an extent, which is used to hold the metadata of the databases. A lot of times due to the mismatching in these files, the database gets corrupt and does not work properly. In such cases, you should try to repair MDF file using appropriate measures. However, if the problem is not addressed, then there is a strong case of using a third-party SQL repair software.
Consider a situation in which you are facing the following error message while working on an MS SQL Server 2000 database:
“Extent E_ID in database ID DB_ID is allocated in both GAM GAM_P_ID and SGAM SGAM_P_ID.”
Cause:
The error has occurred because of corruption in the extents due to the irregularities in the IAM, GAM, and SGAM pages.
Resolution:...
Posted on Thursday, September 09, 2010 at 5:14 AM
In an MS SQL table, a text node is used to save the data that is stored in the rows of the records. Every text node contains a parent node and is formulated in either a B-tree or a heap format. At times, when the text node becomes damaged then you are unable to access the data in the tables. Such problems can occur due to various issues such as virus infections, hardware malfunctioning, database header corruption, etc. You should perform appropriate workarounds to repair MDF file failing which you can try a third-party SQL repair software to repair SQL database.
Taking a practical scenario into account in which you are getting the following error message while working on an MS SQL Server 2000 database:
"Object ID O_ID: Errors found in text ID TEXT_ID owned by data record identified by RID."
Cause: The primary cause of this problem is that there is corruption in a text node. Usually, Error 8962 and/or 8963 also appear with this error message...
Posted on Wednesday, July 07, 2010 at 5:34 AM
The system catalogs in SQL Server databases are used to store various types of information such as number and names of tables and views in the database among many others. This information is collectively referred as metadata. However, sometimes this metadata may get corrupt due to various reasons such as virus infections, hardware issues, power outages, etc. In such cases, you should use the in-place methods to rectify the problem. However, if you are not able to recover SQL database, then you should use a third-party
Repair SQL database software to do the needful.
Consider a scenario wherein you encounter the following error message while using the DBCC CHECKNAME tool on an SQL Server 2008 database:
"Database 'DBNAME': consistency errors in system catalogs prevent further DBCC CHECKNAME processing."
Cause:
There could be the following causes for this error. They are:
The system base tables are storing the metadata for all the objects in the database...
Posted on Tuesday, July 06, 2010 at 2:10 AM
As you store more and more data to your Microsoft SQL Server database, the size of database increases and the performance of Microsoft SQL Server decreases day by day. Large size of database may also cause system crash and sometimes database corruption. To prevent such situations, MS SQL Server provides SHRINKFILE and SHRINDB tools for reducing size of the database. However, in some cases, these tools fail to shrink the database and problem remains intact. At this point, if database corruption occurs, SQL database repair becomes need of hour.
As a practical example of this behavior, you may come across the following error message when you try to reduce size of the SQL Server 2000 database using SHRINKFILE, SHRINKDB, or SQL Server Enterprise Manager:
"2002-11-25 22:41:30.18 spid55 Time out occurred while waiting for buffer latch type 4,bp 0x3d03340, page 1:37939357), stat 0xb, object ID 8:8:0, EC 0xB39B55E0 : 0, waittime 300. Not continuing to wait...
Posted on Wednesday, June 30, 2010 at 4:59 AM
MS SQL Server 2000 is used to provide enterprise solution in many reputed organizations. The primary reasons behind this are that it is simple to use, scalable for huge databases, provides strong support for demanding situations, etc. However, having said that, the database tables may sometimes become corrupt thereby disabling you to use it properly. Such issues can occur due to virus infections, power outages, damaged hardware components, etc. You should inquire for the cause of the corruption and try to recover SQL database. If you are not able to resolve the issue, then you should use a third-party SQL database recovery software to perform
SQL server recovery.
Consider a scenario wherein you encounter the following error message while working on an SQL Server 2000 database.
"
Table error: Object ID O_ID, Index ID I_ID. Duplicate keys on page P_ID1 slot SLOT1 and page P_ID2 slot SLOT2."
Cause:...
Posted on Tuesday, June 29, 2010 at 5:31 AM
Are you facing problems while working on your SQL Server 2000 database? Are you getting lot of error messages for some tasks that worked fine previously? Or the database is responding too slowly? If all your answers are in YES, then chances are that the database has corrupted. It may have corrupted due to various reasons such as virus infections, power outages, hardware malfunctioning, etc. To resolve such issues, you can perform in-place resolving techniques. If you are not able to address the situation, then you should use a third-party
SQL database repair software to repair SQL database.
Consider a scenario wherein you encounter the following error message while working on the SQL Server 2000 database:
"Minimally logged extents were found in GAM interval starting at page P_ID but the minimally logged flag is not set in the database table."
Cause:...
Posted on Monday, June 28, 2010 at 4:04 AM
An IAM (Index Allocation Map) page consists of eight page Ids, collectively called mixed page array, and holds the pages that are allocated to the index. The IAM pages are used to optimize the tables by allocating and deallocating storage space. Sometimes the IAM page is not able to perform as expected. Such corruption instances can occur because of various reasons such as hardware malfunctions, virus infections, power outages, abruptly exiting SQL Server, etc. To resolve such situations, you should use appropriate corrective measures. In case, you are not able to recover SQL database then you should use a third-party
SQL database repair software to do so.
Consider a scenario wherein you encounter the following error message while working on an SQL Server 2000 database:
"
Page P_ID in database ID DB_ID is allocated in the SGAM SGAM_P_ID and PFS PFS_P_ID, but was not allocated in any IAM. PFS flags 'PFS_FLAGS'."
Cause:...
Posted on Wednesday, June 23, 2010 at 5:01 AM
Microsoft usually recommends you to use a SAN (Storage Area Network) or locally attached hard drives to store your MS SQL Server database (MDF or Master Database File) because it optimizes the reliability and performance of Microsoft SQL Server. Use of the network database files (the files stored on NAS [Network Attached Storage] or networked server) isn't enabled for MS SQL Server. However, this configuration may damage your SQL Server database in some cases of system failure. In such situations, you must have an absolute backup of your significant database to extract inaccessible data from it. In the other case, you need to go for master database file recovery solutions to get your valuable data back.
Although, network file support is not enabled by default in Microsoft SQL Server, you can manually configure MS SQL Server to store all your database files on NAS storage server or networked server. The servers, which you employ for this configuration, must fulfill MS SQL Server requirements for write-through guarantees and data write ordering...
Posted on Thursday, June 17, 2010 at 4:39 AM
The DBCC CHECKDB command in SQL Server databases is used to check and repair any inconsistency in the databases. There are many extensions for this command that you can apply in various kinds of situations. However, at times when you this command finds any error on the system tables then it ends abruptly. Such cases can arise due to corruption in the database tables. In such situations, you should employ certain in-built workarounds to get the database repaired. If you are not able to recover the database using these methods, then you should use a third-party
SQL database recovery software to recover SQL database.
Consider a scenario wherein you encounter the following error message while working on an SQL Server 2008 database:
"System table pre-checks: Object ID O_ID. Page P_ID has unexpected page type PAGETYPE. Check statement terminated because of an irreparable error."
Cause:...
Posted on Sunday, June 13, 2010 at 11:28 PM
Like other databases and files, Microsoft SQL Server database may also come across various corruption issues. The corruption can take place due to various reasons, including the internal database or SQL Server application issues and system related problems. One major system related problem, which can cause MDF (Master Database File) corruption, is I/O logical check failure. In such situations, the database becomes totally inaccessible and you come across severe data loss situations. In order to get your mission critical data back, you need to repair and restore the corrupt database using
SQL database recovery solutions.
The I/O logical check failure can be indicated by various error messages, which includes the following one:
“Error 823
I/O error <error> detected during <operation> at offset <offset> in file '<file>'”...
Posted on Wednesday, June 09, 2010 at 5:00 AM
In Microsoft SQL Server, if any transaction violates the integrity constraints during execution, database inconsistency occurs. The transaction leaves your MS SQL Server database in illegal state and it gets aborted with an error. Database inconsistency leaves your MDF (Master Database File) in an unusable and inaccessible state, which can lead to serious data loss. In such cases, a valid and updated backup come for your rescue. You can easily restore all your valuable data from current backup and prevent needs of
SQL recovery using third-party applications.
However, in case you are unable to restore data from the backup or backup is incomplete, you can check the database errors and fix them using inbuilt utility of Microsoft SQL Server, called CHECKDB. It offers you an option to repair the database errors. Database inconsistency may also occur due to system level errors, like file system and hardware. You are highly recommended to fix these errors before repairing the database, else you may face the same problem again after some time...
Posted on Monday, June 07, 2010 at 4:46 AM
In SQL Server 2008, the Auditing feature has been introduced that allow you to track user and system activity for the enterprise customers. This feature provides the option to detect any unauthorized access attempts, if any, to the SQL Server database. Also, it facilitates a rich and powerful tracking capability to recognize any sensitive configuration changes to the database by the administrators. However, at times the auditing process can fail thereby making the database get corrupt. You should use appropriate corrective measures to rectify the problem. If you are not able to address the situation, then you should use a third-party
SQL recovery tool software to recover SQL database.
Consider a scenario wherein you encounter the following error message while auditing a database table in SQL Server 2008.
“Table error: alloc unit ID A_ID, page P_ID. The test (TEST) failed. The values are VAL1 and VAL2.”
Cause:...
Posted on Friday, June 04, 2010 at 5:11 AM
Microsoft SQL Server includes an inbuilt utility, called DBCC CHECKDB, to check the consistency and integrity of MDF (Master Database File). However, sometimes the DBCC CHECKDB process does not complete successfully and can not fix the associated issues. Database inconsistency can make the SQL Server database inaccessible and lead to severe data loss situations. In such cases, you need to
recover SQL database, in order to extract data from it.
When you execute DBCC CHECKDB on an SQL database, an error message similar to the following one, appears in ERRORLOG of Microsoft SQL Server-
"2010-03-31 22:07:06.34 spid53 DBCC CHECKDB (mydb) executed by MYDOMAIN\theuser found 15 errors and repaired 0 errors. Elapsed time: 0 hours 0 minutes 0 seconds. Internal database snapshot has split point LSN = 00000026:0000089d:0001 and first LSN = 00000026:0000089c:0001. This is an informational message only. No user action is required."...
Posted on Tuesday, June 01, 2010 at 5:25 AM
Are you getting 'Error 823' while accessing an SQL Server database or modifying the database? Are you getting various database inconsistency errors while querying SQL Server database? Well, the problem may take place if your SQL Server database is either inconsistent or damaged. In such critical situations, you must have a complete backup to restore data from it. However, the situations may become worse if there is no current backup in place. At this point of time, you have to opt for
SQL recovery tools to get your valuable data recovered.
You may come across the below errors in Windows Application Event Log or MS SQL Server ERRORLOG while performing any operation on MDF (Master Database File) of SQL Server:
"2010-03-06 22:41:19.55 spid58 Error: 823, Severity: 24, State: 2...
Posted on Friday, May 28, 2010 at 10:32 PM
MS SQL Server provides the DBCC statements that are used to check and fix the databases for physical and logical consistency. There are various types of DBCC statements that you can use for the any particular purpose. However, at times these commands are not able to perform. The reason behind is that these database may have corrupted because of various reasons such as virus infections, hardware issues, human errors, etc. In such cases, you should use a third-party
MDF repair software to repair SQL database.
Consider a scenario wherein you are working on an SQL Server 2000 database. In this, you use the DBCC CHECKTABLE command on a particular table to make it more scalable and achieve parallelism. However, the command failed to execute. An error message is displayed, that is:
“CHECKTABLE terminated. A failure was detected while collecting facts. Possibly tempdb out of space or a system table is inconsistent. Check previous errors.”...
Posted on Friday, May 28, 2010 at 4:25 AM
Microsoft SQL Server RDBMS (Relational Database Management System) enables you to take your database online and offline as per your requirements. You can set your database either online or offline easily using the 'Alter Database' command. If MDF (Master Database File) of your SQL Server is online, all the connected users can access it, modify it, perform other operations, depending upon the privileges assigned to them. However, in some situations, you may face critical database corruption problems, while trying to set an MS SQL Server database online. This behavior leads to significant data loss situations and needs
SQL recovery to be sorted out.
As a practical example of the above problem, you may come across the underwritten error messages when you try to set your MS SQL Server database online using 'ALTER DATABASE mydb SET online' command:
Msg 5171, Level 16, State 1, Line 1
E:\Data\mydb_log.ldf is not a primary database file...
Posted on Wednesday, May 26, 2010 at 10:09 PM
When you use the DML (Data Manipulation Language) commands to update the database, the rows sometimes get in an intermediate state. It is called the antimatter state that enables concurrent DELETE statements to leave a pointer for the index builder transaction so that deleted rows are not inserted again. Ideally, these rows should be deleted at the end of the operation. However, sometimes it does not happen that invariably results in database corruption. To resolve this situation, you should use appropriate corrective methods. However, if you are unable to do so then you should use a third-party
MDF repair software to address the issue.
Consider a scenario wherein you are working on a table in SQL Server 2008. You get the following error message while performing some modifications on the database table:
“Table error: Object ID O_ID, index ID I_ID, partition ID PN_ID, alloc unit ID A_ID (type TYPE), page PG_ID, row R_ID. DBCC detected incomplete cleanup from an online index build operation. (Antimatter column value is VALUE.)”...
Posted on Monday, May 24, 2010 at 1:32 AM
Microsoft SQL Server stores all your valuable data in MDF (Master Database File) in the form of tables. The data is organized using database index, which makes it easy to locate and access stored data. Sometimes, the database grows unexpectedly and performance of the database gets decreased dramatically. To control the database growth, you can use native options of Microsoft SQL Server, such as 'Filegroup'. If you do not take any such actions, the database may crash and get damaged. This behavior causes serious data loss and requires
SQL database recovery to be sorted out, if there is no backup in place.
Microsoft SQL Server offers various methods to help supporting the database growth. From the database planning point of view, one of the most important topic that must be covered is the 'Filegroup'. It can be considered as a logical data storage unit to hold the SQL Server database objects, which maps to multiple files or file system file...
