Checks for outstanding referential integrity violations before a commit.
sa_check_commit( tname, keyname )
tname A VARCHAR(128) parameter containing the name of a table with a row that is currently violating referential integrity.
keyname A VARCHAR(128) parameter containing the name of the corresponding foreign key index.
If the database option wait_for_commit is On, or if a foreign key is defined using CHECK ON COMMIT in the CREATE TABLE statement, you can update the database and cause a referential integrity violation if the violations are resolved before the changes are committed.
You can use the sa_check_commit system procedure to check whether there are any outstanding referential integrity violations before attempting to commit your changes.
The returned parameters indicate the name of a table containing a row that is currently violating referential integrity, and the name of the corresponding foreign key index.
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The following set of commands can be executed from Interactive SQL. Rows are deleted from the Departments table in the sample database and a referential integrity violation occurs. The call to the sa_check_commit system procedure checks which tables and keys have outstanding violations, and the rollback cancels the change:
SET TEMPORARY OPTION wait_for_commit='On' go DELETE FROM Departments go CREATE VARIABLE tname VARCHAR( 128 ); CREATE VARIABLE keyname VARCHAR( 128 ) go CALL sa_check_commit( tname, keyname ) go SELECT tname, keyname go ROLLBACK go |
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