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%ROWCOUNT
The %ROWCOUNT yields the number of rows affected by the INSERT, UPDATE, or DELETE statement, or returned by a SELECT INTO statement. The %ROWCOUNT yields zero when an
INSERT, UPDATE, or DELETE statement affected no rows, or the SELECT INTO statement return no rows. In the illustration below, you use the %ROWCOUNT to take the action if more than ten rows have been deleted:
DELETE FROM emp WHERE ...
IF SQL%ROWCOUNT > 10 THEN -- more than 10 rows were deleted
...
END IF;
If the SELECT INTO statement precedes more than one row, the PL/SQL raises the predefined exception TOO_MANY_ROWS and the %ROWCOUNT yields 1, not the actual number of rows that assure the query.
Exception handling In the PL/SQL, a warning or error condition is known as an exception. The Exceptions can be internally defined (by the run-time system) or user defined. The
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%NOTFOUND The %NOTFOUND is the logical opposite of the %FOUND. The %NOTFOUND yields TRUE when an INSERT, UPDATE, or DELETE statement affected no rows, or the SELECT INTO state
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