SQL Exceptions

Level : Intermediate

Mentor: Shailendra Chauhan

Duration : 00:01:00

System Defined Exception Handling

SQL Server provides built-in system-defined exceptions that help handle various errors and exceptions that can occur during database operations. These exceptions are predefined and can be caught and handled using TRY...CATCH blocks.

Example

BEGIN TRY
  -- Code that may cause an error
END TRY
BEGIN CATCH
  -- Handle the error here
END CATCH

User Defined Exception Handling

SQL Server allows users to define custom exceptions using RAISEERROR or by creating custom error messages with sp_addmessage. These user-defined exceptions can be raised and caught within stored procedures or T-SQL code.

Example

BEGIN TRY
  -- Code that may raise a user-defined exception
  IF (SomeCondition)
    RAISEERROR('Custom Error Message', 16, 1)
END TRY
BEGIN CATCH
  -- Handle the user-defined exception here
END CATCH

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