What is consistency error?
A consistency error refers to the occurrence of the values of two or more data items which do not satisfy some predefined relationship between those data items.
What is data consistency in DBMS?
Consistency (or Correctness) in database systems refers to the requirement that any given database transaction must change affected data only in allowed ways. Any data written to the database must be valid according to all defined rules, including constraints, cascades, triggers, and any combination thereof.
Why are there consistency errors in SQL Server?
These errors indicate corruption in SQL server database and makes data inaccessible to the user. Hence, indicates a dire need to resolve these consistency errors to get back access to the SQL Server data. DBCC CHECKDB, a set of commands checks the integrity of the database using logical commands.
What does it mean to have consistency error in DBCC?
This is a general type of error log. While executing DBCC CHECKDB, different type of data consistency errors may be encountered. This error log shows the number of consistency errors. Internal database snapshot is for online DBCC CHECKDB as it is used to present a consistent data to check.
What to do when you have SQL Server Error?
SQL Server provides its users with built-in methods or solutions when they encounter different type of errors. These errors create problems to the users as the database goes inaccessible. For such conditions, the user goes for DBCC CHECKDB help to check the logical integrity of the database.
How does error handling work in SQL Server 2000?
Although SQL Server 2000 developers don’t enjoy the luxury that iterative language developers do when it comes to built-in tools, they can use the @@ERROR system variable to design their own effective error-handling tools. In order to grasp how error handling works in SQL Server 2000, you must first understand the concept of a database transaction.