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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 ...more
Database pages in an MS SQL Server database are that basic unit of storage, which store the information in the records. These pages consist of eight bytes and eight contiguous pages constitute an extent. At times, these pages do get corrupt thereby disabling you to read through the pages. Such scenarios appear because of various MDF file corruption reasons such as virus infections, hardware damage, abrupt system shutdown when the database is open, etc. The possible way-out is to look for the rea ...more
Are you facing problems when you work on the MS SQL Server 2000 database? If yes, then do check out to see if the error messages are suggesting problems in the page definitions of the database. If this is indeed the case, then you should find out the reason of page corruption and try to address the problem. If you are unable to fix the issue, then I would suggest you to use third-party SQL database reco ...more
Write-caching is the best way to improve data write and read process of your Microsoft SQL Server. It enhances the data reliability and makes the database transactions faster. However, in some situations, it may also lead to database inconsistency and database corruption. The problem generally occurs if Microsoft Exchange Server computer shuts down abnormally before successful completion of particular transaction. In such situations, entire database become inaccessible and you encounter severe d ...more
Microsoft SQL Server enables you to create tables for short term uses. Such tables are known as Temporary Tables that are usable only for a particular session. MS SQL Server supports two types of temporary tables- Global temporary table and Local temporary table. However, under some situations, you may encounter database corruption errors while running queries on the temporary tables. The corrupt SQL Server database (MDF or Master Database File) can not be accessed by any means and leads to seri ...more
In SQL Server databases, the data is stored in heaps when the data is not logically sorted in the tables. This heap can sometimes display abnormal behavior while working on the SQL database. Such cases can occur because of various reasons such as virus infections, power outages, abrupt system shutdown, hardware malfunctions, etc. In such cases, you should try to resolve the problem using in-house recovery methods. If you are not able to recover SQL database, then you should use a third-party ...more
All the data in the SQL Server databases is stored in either clustered or non-clustered heaps. In a non-clustered heap, a row always points to another forwarding row to reference data. However, sometimes this behavior is not followed, which is often due to corruption in the MDF (Master Database File) files. Corruption in the MDF files can be due to virus infections, power outages, hardware problems, etc. In such cases, you need to perform MDF recovery using appropriate methods. However, if you a ...more
Are you getting system-level errors while accessing your Microsoft SQL Server database? Are you unable to perform any I/O (Input/Output) operation on your database? Well, the problem generally occurs due to either conflicts of Windows API used by SQL Server or SQL Server database corruption. It leaves your database in an unusable state and leads to severe data loss situations. In order to get your mission critical data back in such cases, you must go for ...more
Microsoft SQL Server uses indexes to effectively manage the database and improve its performance. It helps database manager to easily locate the specified table and extract it. However, in some situations the indexes may get damaged due to high fragmentation and database may become inaccessible. To overcome such issues, SQL Server provides you a tool, called DBCC DBREINDEX, to rebuild the database inde ...more
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 r ...more
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 ...more
In SQL Server databases, an Index Allocation Map (IAM) page is a page type that stores the details about the extents, which is a collection of eight pages. These IAM pages are used to navigate through the heap, thereby making the searching process much faster. Well, at times these IAM pages do not exhibit the desired working due to database corruption. Database corruption can occur due to various reasons such as power outages, human errors, damaged hardware components, virus infections, etc. You ...more
A database page is the most primitive storage unit in an SQL Server database. These pages are stored sequentially in the hard disk. When any operation is performed on the database, these page act as the basic I/O unit. Every page contains a file header, of 96 bytes, that contains page information such as page type, page number, object ID, etc. Sometimes these pages do get corrupt because of various reasons such as virus infections, power outages, hardware malfunctioning, etc. You should resolve ...more
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 ...more
A page is the most primitive unit of storage in an MS SQL Server database. The memory space allotted to a database file is divided into pages having contiguous address location. An Index Allocation Map (IAM) is a page type that stores the details about the extents used by a table per allocation unit. However, sometimes these pages do not function properly because of database corruption. You should take appropriate corrective measures to recover SQL database. However, if you are not able to r ...more
Using the indexes in SQL databases is a good practice as it makes searching the records faster and easier. The indexes consist of various pages that are arranged in the form of B-tree structures. When a query is executed, the database engine goes all way from the root node to the exact branch where the data is located. Any discrepancy in this routine may result in corruption of the database table. Such discrepancies can arise due to various reasons such as virus infections, hardware incompatibil ...more
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 ...more
Error number 18456 is quite common in MS SQL Server and it comes up whenever there is some problem with installation of MS SharePoint services. This error crops up in the following scenario:
You install MS Windows SharePoint Services and as soon the Setup program is completed successfully, you configure Windows SharePoint Services settings in SharePoint Central Administration. You specify configuration database settings on the Set Configuration Database Server page of SharePoi ...more