Wednesday, January 5, 2011

Out-of-range and Invalid Data Causes Errors in SQL Server Database

Are you getting out-of-range or invalid data errors while accessing Microsoft SQL Server database? When you create a table in MS SQL Server, you need to specify the data types, size, and type of values that you can store in particular table. In case you store invalid data in any table, you may face this problem. The problem can also occur if database table is damaged and SQL Server application is unable to read it. This behavior causes data inaccessibility and data loss. At this stage, you are required to opt for SQL database recovery to work around the problem. Out-of-range or invalid data might get stored in Microsoft SQL Server database table in the older versions for any of the below reasons: Invalid data is passed by RPC (Remote Procedure Call) event calls made to MS SQL Server. Invalid data is presented in source when you use bulk-insert mechanisms, like bcp tool. Other possible reasons of data corrupt has left the table values in invalid sate. In case you have out-of-range, invalid, or corrupt data in any column of SQL Server database table, you may come across issues depending upon type of the operations you perform against invalid data. But, it is possible to hide invalid data. It is not discovered until the DBCC CHECKTABLE or DBCC CHECKDB command is not executed on Microsoft SQL Server database. If there are some invalid data in SQL Server database table, you may come across the following symptoms: When you run any queries against problem column of the table, you run across access violations and various other exceptions. Problems or errors when the statistics are created against affected table columns. Queries give incorrect results while running against the problem column. You encounter error messages similar to the following ones: “Msg 9100, Level 23, State 2, Line 1 Possible index corruption detected. Run DBCC CHECKDB.” In all such cases, SQL Server recovery becomes need of hour. To recover SQL Server database, you must have a valid and updated backup. Otherwise, you are required to use third-party applications, called MS SQL recovery software. SQL recovery applications are designed to carry out systematic scan of entire SQL Server database and extract all inaccessible data from it. They offer easy and safe recovery with simple user interface and read-only conduct. Stellar Phoenix SQL Recovery is the most efficient and widely used utility to ensure absolute recovery in all corruption scenarios. The software recovers corrupt databases of Microsoft SQL Server 2008, 2005, 2000, and 7.0. It repairs and restores both MDF and NDF files of SQL Server database.

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