Stellar Phoenix SQL Database Recovery Software

An SQL Server database table might get corrupted due to unexpected crash, virus infection, application bugs and similar reasons. To troubleshoot all such issues, you require using your backup, running DBCC CHECKDB command or scanning the database using MDF Repair utilities.

For an instance, you might come across the similar error as below with your SQL Server database table:

“Table error: Object ID O_ID, index ID I_ID, page P_ID, row ROW_ID. Record check (CHECK_TEXT) failed. Values are VALUE1 and VALUE2.”

This errors is recorded as 2337 in SQL log and is encountered in different states.

Cause

SQL Server has performed CHECK_TEXT to test the integrity of row ROW_ID that it has failed. The values VALUE1 and VALUE2 vary depending on the state of error message as described below:

• State 40: Value1 (length of column) is greater than Value2 (maximum length specified in metadata).
• State 43:

1. Value1 (variant column’s data length) is longer than Value2 (maximum length allowed of variant type)
2. Value1 is relational ID of column and Value2 is ). The error occurs due to check failure of computed or variant column.

• State 100: Value1 is invalid record type recorded on data page and Value2 is 0.
• State 101: Value1 (index record’s size) is greater than Value2 (maximum allowed size in metadata)
• State 401: Value1 is invalid record type recorded on index page and Value2 is 0.
• State 510: Value1 (number of child links in a node) is more than Value2 (possible space in child link array) for node type BLB_LARGE_ROOT_2, BLB_LARGE_INTERNAL or BLB_LARGE_ROOT
• State 511: Value1 (number of child links in a node) is more than Value2 (maximum fan-out defined)
• State 512: Value1( number of children in a text node) is larger than Value2 (available space)
• State 513: Value1 (minimum record length) cannot hold Value2 (BlobMan::DATA_NODE_HEAD_SIZE)

Solution

Use these methods to solve error 2537:

• Restore from backup if available
• Execute DBCC CHECKDB to know the required repair clause and run the same command with the suggested repair clause
• Since performing the above steps can cause data loss, use repair mdf file tools that allow achieving safe and complete SQL database repair results. MDF Repair utilities scan the damaged database and serve as most valid tools to restore it.

Stellar Phoenix SQL Recovery is an advanced mdf file repair tool that repairs and restores damaged SQL Server database created with SQL Server 2008, 2005 and 2000. It is a comprehensive database repair product for all database objects and is embedded with unique set of features. It is compatible with Windows Vista, XP, 2003, 2000 and NT.

SQL Server allows you to use a LSN (Log Sequence Number) that can be used as a recovery point for database restoration before the point of failure. When you perform differential backup process for your database, it is dependent upon a bitmap page that holds a bit per extent. Thus, corresponding changes are required to be marked in this differential backup bitmap or else will generate errors in database pages. You might need to restore the damaged database from the latest backup present. But sometimes, you don’t get complete restoration results from your backup as it is incomplete or invalid. In such situations, you should use advanced MDF Repair tools that use powerful scanning algorithms to repair damaged SQL Server database.

As an instance, you might receive the below error with your SQL Server database:

Server: Msg 2515, Level 16, State 1
Page P_ID, object ID O_ID, index ID I_ID has been modified but is not marked modified in the differential backup bitmap.

Cause

The above error is a result of database check that is performed only if the differential bitmap is free from errors. The error suggests that the page specified with P_ID has a Log Sequence Number and has got a higher value than differential base Logic Sequence Number in FCB (File Control Block) of file or differential reference Log Sequence Number in BackupManager (whichever is the more recent value). The error occurs when this change has not been marked in differential backup bitmap. Since repair process doesn’t depend upon the number of pages included in the database, the P_ID refers to the first page of database.

Solution

To recover from such situations, you need to deploy these methods:

.Check and fix your system for possible hardware issues through Windows, application and SQL Server™ error logs
.Restore the damaged database from the latest backup available
.Run DBCC CHECKDB without using any repair clause to determine extent of corruption and repair clause. Next, again execute DBCC CHECKDB but with the suggested repair clause. But this might cause data loss
.For safe repair mdf file, use commercial tools to repair and restore damaged SQL databases. MDF Repair tools are built with powerful technology and provide you self-explanatory user interface and safe repair options.

Stellar Phoenix SQL Recovery is an advanced mdf repair utility to repair damaged databases created with SQL Server 2008, 2005 and 2000. It is a fully-competent tool that restores all database components including triggers, stored procedures, views, rules and more. It is compatible with Windows Vista, XP, 2003, 2000 and NT.

A SQL Server file is consisted of different pages that store its allocation structures. The Global Allocation Page (GAM) is the one that contains information related to allocated extents in this file. Whereas, the allocation pages that contain information of the extents that an index or table uses are termed as Index Allocation Map (IAM) pages. Sometimes, you get errors that it has found multiple IAM pages for a single object. Such errors usually indicate table corruption that needs to be repaired or restored from backup. In absence of clean backup, you should use MDF Repair tools.
You might encounter the following error with your SQL Server database table:
Server: Msg 8947, Level 16, State 1
Table error: Multiple IAM pages for object ID O_ID, index ID I_ID contain allocations for the same interval. IAM pages P_ID1 and P_ID2.

Cause

The error message suggests that the IAM chain for the specified index has minimum of 2 IAM pages (referred as P_ID1 and P_ID) and cover the same GAM interval.

.    By interval, it means the file space that GAM page uses to map, which is approximately calculated as 4 GB. Each index having more than one extent that is allocated from a GAM interval is required to have an IAM page for that particular GAM interval. For all extents of GAM interval, an IAM page contains one bit for each extent. A set bit indicates that the particular index is allocated to that index.

One of the common reasons for this behavior to occur is hardware failure.

Solution

You need to perform these methods to recover from the situation:

.    Ensure that no hardware failure issue exists. Run hardware diagnostics and check application, Windows and SQL Server™ error log to know the exact issue. Replace the damaged hardware, if needed
.    If clean backup is available, restore from the database from it
.    If no valid backup is present, run DBCC CHECKDB command without using any repair clause to know the extent of corruption and repair clause required to be applied. Execute DBCC CHECKDB with the suggested repair clause
.    If above measures fail, scan the database using advanced mdf file repair tools. These are powerful SQL database repair applications designed to offer safe and effective MDF Repair.

Stellar Phoenix SQL Recovery is a premier tool to repair damaged SQL databases. It supports SQL Server 2008, 2005 and 2000. With self-descriptive interface, advanced repair options and read-only design, it is an advanced repair mdf tool to repair all database objects. The software is compatible with Windows Vista, XP, 2003, 2000 and NT.

SQL Server database is a set of tables and can also comprise stored procedures, constraints, views, indexes and transaction log files. A database storage space is basically divided into several pages, which serves as the basic unit of all I/O operation in SQL Server. Each of these pages is assigned with a 96-byte header that is responsible for holding all the metadata information of the page. All the data of database are stored in MDF files. But sometimes, you observe SQL Server log giving some sort of errors. It might indicate that your SQL Server database is affected from corruption and requires restoring from backup. But in case of unavailability of backup, you should use mdf file repair tools, which use powerful file repair algorithms to fix SQL database corruption.

While using and accessing your SQL Server database, you might receive the similar error message:

Msg 2540, Level 10
The system cannot self repair this error.

Cause

This error message indicates that SQL Server has encountered an error that could not be automatically repaired by its check code. Such kinds of errors include:

.     Metadata corruption
.    Corruption of PFS pages
.    One or more system files corruption

.    PFS or Page Free Space pages are responsible for holding allocation status for each database page. They record information like whether the page has been allocated for storage or not, the amount of fee space available on each page etc.

Such issues might arise due to hardware issues.

Solution

Follow these methods to fix 2540 errors with SQL Server database:

.    Diagnose your system for hardware issues
.    Check if all system files are healthy. Reinstall the system, if required
.    Restore the database from the recent backup, if present and is valid
.    If no clean backup is available, run DBCC with repair option. But it can cause data loss as the process deletes the corrupted pages
.    For safe MDF Recovery, use third-party tools of SQL database recovery

MDF Repair software are appropriate tools to scan and repair damaged SQL Server databases. Using powerful and safe scanning algorithms, they avail effective database recovery.

Stellar Phoenix SQL Recovery is an advanced and safe application that can effectively scan and repair damaged SQL databases. It is a complete mdf repair solution that can repair and restore all database objects like tables, rules, stored procedures etc. The application is compatible with SQL Server 2008, 2005 and 2000. It is a graphically rich application that offers advanced repair options.

SQL Server database is a collection of tables with typed columns. If due to any cause SQL Server tables get corrupt, you can use DBCC CHECKDB command to examine the extent of corruption. A SQL table gets corrupt due to unexpected shutdown, application bugs, virus attack, network faults and similar other reasons. A corrupt SQL table shows corruption errors or behaves abruptly. However, to restore lost information, you should use your recent backup, if available and valid. In case of no backup or invalid
ackup state, commercial MDF Repair applications can help to repair and restore the damaged database. One of the typical symptoms that a corrupt SQL Server table shows is that you cannot drop it using DROP TABLE command.

Cause

You cannot drop a corrupt SQL Server table if allocation extent/page is cross-linked or damaged. As a result, SQL Server takes it as some data from other tables in the same extent/pages that belong to the affected object. In such cases, if it allows you to drop the table, it might delete data from other tables.

Solution

To correct the aforementioned behavior, try following these methods:

•    You can create a new SQL Server database and try copying all objects from affected database.

To do so, you can use BCP or Transfer Manager. You then need to dump or rename the databases.
•    If database is of large size, you can update sysobjects and thus rename the table. After this, create a new database table, leaving the earlier one. Updating sysobjects can corrupt the database more.
•    If above measures don’t give required results, use your recent database backup to restore.
•    In case of backup unavailability or backup errors, you should use third-party repair mdf applications.

MDF Repair software are advanced tools that can examine your damaged SQL databases and repair them. Such software come equipped with informative documentation, enhanced repair options, non-destructive design, instinctive repair features and intuitive interface. mdf file repair software perform powerful scan of damaged database, while maintaining its integrity.  These are versatile tools that you can use in any logical case of database corruption.

Stellar Phoenix SQL Recovery is a complete database repair tool for damaged SQL Server databases. It supports repair for SQL Server 2000 and 2005. This MDF Repair software is available with self-descriptive interface and restores all database objects including tables, user defined data types and functions, triggers, stored procedures, views, rules etc. The software is compatible with Windows Vista, XP, 2003, 2000, and NT.

SQL Server is Microsoft provided relational model database server. In addition to relational data, it also natively supports managing XML data. SQL Server is available in different versions that vary in terms of features and targeting users. But sometimes, you find issues while accessing its database contents. Such problems are more frequent in database tables when you try to run queries. It generally indicates table corruption. Tables are database components that store data. So, to restore lost information in this way, you need to use your recent backup. However, if backup is damaged, absent or not updated, MDF Repair tools can serve the purpose of database repair and restoration.

As a practical instance, when you try to run a SQL query on a table, you receive the following error message:

“Attempt to fetch logical page (1:42724) in database <database_name> belongs to object <table_name>, not to object ‘RRR’.Connection Broken..”

Further, when you run DBCC CHECKTABLE command with REPAIR_ REBUILD option, you encounter different error messages, similar to:

Server: Msg 2535, Level 16, State 1, Line 1
Table Corrupt: Page (1:42724) is allocated to object ID 1517248460, index ID 0, not to object ID 982294559, index ID 0 found in page header.

Server: Msg 8928, Level 16, State 1, Line 1
Object ID 1517248460, index ID 0: Page (1:42723) could not be processed. See other errors for details.

Cause

The above behavior occurs due to SQL database corruption inconsistencies, generally due to index corruption.

Solution

To resolve the above issues, you need to follow these steps:

.    Ensure that the database is online
.    Next, try rebuilding the database indexes using  DBCC DBREINDEX command
.    If problem persists, you require repairing the database using DBCC CHECKDB with the REPAIR_ALLOW_DATA_LOSS option. But the use of command forces some data to be lost.
.    Perform safe MDF Recovery using read-only SQL database repair tools. These are graphically rich and read-only tools that scan your damaged SQL databases using powerful scanning algorithms. mdf repair applications are available with advanced repair options, to the point documentation, and complete database recovery abilities.

Stellar Phoenix SQL Database Recovery is the finest repair mdf file application. It supports SQL Server 2000 and 2005. It can restore all database objects, including tables, views, stored procedures, rules, defaults, user defined data types and triggers. The software is compatible with Windows Vista, XP, 2003, 2000 and NT. It is a read-only tool with intuitive interface.

Stellar Information System Ltd. introduces SQL Recovery software. The data recovery company, which has achieved its customer’s satisfaction up to a peak level through its topmost data recovery services and products, has now come up with new software which can recover and repair corrupted Microsoft SQL server Database file. Until now Stellar is known for its quality products and this MS SQL Repair application is in the line of its next achievement as it can restore the damaged .mdf files for instances like Virus attack, system shutdown, media read error and so on. This software would prove as a boon to all those who are facing data loss due to SQL database corruption.

Stellar Phoenix MS SQL Data Recovery software-launched by Stellar today, is the best solution for repairing corrupted MS SQL server databases. The repair software that are already available in the market for repairing databases on other platforms like MS Access are gaining much popularity for their tremendous performance and now this MS SQL Repair software is an addition to them. It has been developed seeking the comfort l zone of the users during its use and very well adapted to scan thoroughly and completely the corrupted .mdf files in order to extract as much data as possible.

The key features of the product are listed below:

* Recovers Tables, Views and Rules that has been there in the database.
* Recovers defaults.
* All the user defined functions and data types are recoverable.
* An interactive user interface.
* The stored procedure can also be retrieved.
* Works well with Windows 2000, 2003, XP and Vista.
* Compatible with MS SQL Server 2000 version.
* Can recover indexes and constraints.

This MS SQL Repair software can repair the database after:

· Corruption due to virus attack
· Corruption due to application malfunctioning.
· Occurrence of media read error.
· Improper system shutdown.

This MS SQL Repair software goes good repairing the MS SQL server databases after any instance of database corruption and with any file version of Windows and thus acting as a complete solution for your corrupted SQL databases.