MySQL 5.7 Release Notes
SHOW ERRORS [LIMIT [offset,] row_count]
SHOW COUNT(*) ERRORS
SHOW ERRORS is a diagnostic
statement that is similar to SHOW
WARNINGS, except that it displays information only for
errors, rather than for errors, warnings, and notes.
The LIMIT clause has the same syntax as for
the SELECT statement. See
Section 13.2.9, “SELECT Statement”.
The SHOW COUNT(*)
ERRORS statement displays the number of errors. You
can also retrieve this number from the
error_count variable:
SHOW COUNT(*) ERRORS;
SELECT @@error_count;
SHOW ERRORS and
error_count apply only to
errors, not warnings or notes. In other respects, they are
similar to SHOW WARNINGS and
warning_count. In particular,
SHOW ERRORS cannot display
information for more than
max_error_count messages, and
error_count can exceed the
value of max_error_count if the
number of errors exceeds
max_error_count.
For more information, see Section 13.7.5.40, “SHOW WARNINGS Statement”.