exception.result

SET sql_mode=ORACLE;
#
# sql_mode=ORACLE: Predefined exceptions: TOO_MANY_ROWS, NO_DATA_FOUND, DUP_VAL_ON_INDEX
#
#
# Testing NO_DATA_FOUND and TOO_MANY_ROWS
#
CREATE TABLE t1 (a INT);
INSERT INTO t1 VALUES (10),(20);
CREATE PROCEDURE p1(lim INT, res OUT VARCHAR)
AS
a INT;
BEGIN
SELECT a INTO a FROM t1 LIMIT lim;
EXCEPTION
WHEN TOO_MANY_ROWS THEN res:='--- too_many_rows cought ---';
WHEN NO_DATA_FOUND THEN res:='--- no_data_found cought ---';
END;
$$
SET @res='';
CALL p1(0, @res);
SELECT @res;
@res
--- no_data_found cought ---
CALL p1(2, @res);
SELECT @res;
@res
--- too_many_rows cought ---
DROP PROCEDURE p1;
DROP TABLE t1;
#
# Testing DUP_VAL_ON_INDEX
#
CREATE TABLE t1 (a INT PRIMARY KEY);
CREATE PROCEDURE p1(res OUT VARCHAR)
AS
BEGIN
INSERT INTO t1 VALUES (10);
INSERT INTO t1 VALUES (10);
EXCEPTION
WHEN DUP_VAL_ON_INDEX THEN res:='--- dup_val_on_index cought ---';
END;
$$
SET @res='';
CALL p1(@res);
SELECT @res;
@res
--- dup_val_on_index cought ---
SELECT * FROM t1;
a
10
DROP PROCEDURE p1;
DROP TABLE t1;
#
# MDEV-10840 sql_mode=ORACLE: RAISE statement for predefined exceptions
#
#
# RAISE outside of an SP context
#
RAISE NO_DATA_FOUND;
ERROR 42000: Undefined CONDITION: NO_DATA_FOUND
RAISE INVALID_CURSOR;
ERROR 42000: Undefined CONDITION: INVALID_CURSOR
RAISE DUP_VAL_ON_INDEX;
ERROR 42000: Undefined CONDITION: DUP_VAL_ON_INDEX
RAISE TOO_MANY_ROWS;
ERROR 42000: Undefined CONDITION: TOO_MANY_ROWS
RAISE;
ERROR 0K000: RESIGNAL when handler not active
#
# RAISE for an undefinite exception
#
CREATE PROCEDURE p1
AS
BEGIN
RAISE xxx;
END;
$$
ERROR 42000: Undefined CONDITION: xxx
#
# RAISE for predefined exceptions
#
CREATE PROCEDURE p1
AS
BEGIN
RAISE no_data_found;
END;
$$
CALL p1();
Warnings:
Warning	1329	No data - zero rows fetched, selected, or processed
DROP PROCEDURE p1;
CREATE PROCEDURE p1
AS
BEGIN
RAISE invalid_cursor;
END;
$$
CALL p1();
ERROR 24000: Cursor is not open
DROP PROCEDURE p1;
CREATE PROCEDURE p1
AS
BEGIN
RAISE dup_val_on_index;
END;
$$
CALL p1();
ERROR 23000: Duplicate entry '%-.192s' for key %d
DROP PROCEDURE p1;
CREATE PROCEDURE p1
AS
BEGIN
raise too_many_rows;
END;
$$
CALL p1();
ERROR 42000: Result consisted of more than one row
DROP PROCEDURE p1;
#
# RAISE with no exception name (resignal)
#
CREATE PROCEDURE p1()
AS
BEGIN
RAISE;
END;
$$
CALL p1();
ERROR 0K000: RESIGNAL when handler not active
DROP PROCEDURE p1;
CREATE TABLE t1 (a INT);
INSERT INTO t1 VALUES (10),(20);
CREATE PROCEDURE p1(lim INT)
AS
a INT;
BEGIN
SELECT a INTO a FROM t1 LIMIT lim;
EXCEPTION
WHEN TOO_MANY_ROWS THEN RAISE;
WHEN NO_DATA_FOUND THEN RAISE;
END;
$$
CALL p1(0);
Warnings:
Warning	1329	No data - zero rows fetched, selected, or processed
CALL p1(2);
ERROR 42000: Result consisted of more than one row
DROP PROCEDURE p1;
DROP TABLE t1;
CREATE TABLE t1 (a INT);
INSERT INTO t1 VALUES (10),(20);
CREATE PROCEDURE p1(lim INT)
AS
a INT;
BEGIN
SELECT a INTO a FROM t1 LIMIT lim;
EXCEPTION
WHEN OTHERS THEN RAISE;
END;
$$
CALL p1(0);
Warnings:
Warning	1329	No data - zero rows fetched, selected, or processed
CALL p1(2);
ERROR 42000: Result consisted of more than one row
DROP PROCEDURE p1;
DROP TABLE t1;
CREATE TABLE t1 (a INT);
INSERT INTO t1 VALUES (10),(20);
CREATE PROCEDURE p1()
AS
a INT;
CURSOR c IS SELECT a FROM t1;
BEGIN
FETCH c INTO a;
EXCEPTION
WHEN INVALID_CURSOR THEN RAISE;
END;
$$
CALL p1();
ERROR 24000: Cursor is not open
DROP PROCEDURE p1;
DROP TABLE t1;
CREATE TABLE t1 (a INT);
INSERT INTO t1 VALUES (10),(20);
CREATE PROCEDURE p1()
AS
a INT;
CURSOR c IS SELECT a FROM t1;
BEGIN
FETCH c INTO a;
EXCEPTION
WHEN OTHERS THEN RAISE;
END;
$$
CALL p1();
ERROR 24000: Cursor is not open
DROP PROCEDURE p1;
DROP TABLE t1;
#
# Testing that warning-alike errors are caught by OTHERS
#
CREATE TABLE t1 (a INT);
CREATE FUNCTION f1 RETURN VARCHAR
AS
a INT:=10;
BEGIN
SELECT a INTO a FROM t1;
RETURN 'OK';
EXCEPTION
WHEN OTHERS THEN RETURN 'Exception';
END;
$$
SELECT f1() FROM DUAL;
f1()
Exception
DROP FUNCTION f1;
DROP TABLE t1;
#
# End of MDEV-10840 sql_mode=ORACLE: RAISE statement for predefined exceptions
#
#
# MDEV-10587 sql_mode=ORACLE: User defined exceptions
#
#
# Checking that duplicate WHEN clause is not allowed
#
CREATE FUNCTION f1() RETURN VARCHAR
AS
e EXCEPTION;
BEGIN
RETURN 'Got no exceptions';
EXCEPTION
WHEN e THEN RETURN 'Got exception e';
WHEN e THEN RETURN 'Got exception e';
END;
$$
ERROR 42000: Duplicate handler declared in the same block
#
# Checking that raised user exceptions are further caught by name
#
CREATE FUNCTION f1(c VARCHAR) RETURN VARCHAR
AS
e EXCEPTION;
f EXCEPTION;
BEGIN
IF c = 'e' THEN RAISE e; END IF;
IF c = 'f' THEN RAISE f; END IF;
RETURN 'Got no exceptions';
EXCEPTION
WHEN e THEN RETURN 'Got exception e';
END;
$$
SELECT f1('');
f1('')
Got no exceptions
SELECT f1('e');
f1('e')
Got exception e
SELECT f1('f');
ERROR 45000: Unhandled user-defined exception condition
DROP FUNCTION f1;
#
# Checking that raised user exceptions are further caught by OTHERS
#
CREATE FUNCTION f1(c VARCHAR) RETURN VARCHAR
AS
e EXCEPTION;
f EXCEPTION;
BEGIN
IF c = 'e' THEN RAISE e; END IF;
IF c = 'f' THEN RAISE f; END IF;
RETURN 'Got no exceptions';
EXCEPTION
WHEN OTHERS THEN RETURN 'Got some exception';
END;
$$
SELECT f1('');
f1('')
Got no exceptions
SELECT f1('e');
f1('e')
Got some exception
SELECT f1('f');
f1('f')
Got some exception
DROP FUNCTION f1;
#
# Checking that 'WHEN e .. WHEN f' does not produce ER_SP_DUP_HANDLER
#
CREATE FUNCTION f1(c VARCHAR) RETURN VARCHAR
AS
e EXCEPTION;
f EXCEPTION;
a VARCHAR(64):='';
BEGIN
BEGIN
IF c = 'e' THEN RAISE e; END IF;
IF c = 'f' THEN RAISE f; END IF;
EXCEPTION
WHEN e THEN BEGIN a:='Got EXCEPTION1/e; '; RAISE e; END;
WHEN f THEN BEGIN a:='Got EXCEPTION1/f; '; RAISE f; END;
END;
RETURN 'Got no exceptions';
EXCEPTION
WHEN OTHERS THEN RETURN a || 'Got EXCEPTION2/OTHERS;';
END;
$$
SELECT f1('');
f1('')
Got no exceptions
SELECT f1('e');
f1('e')
Got EXCEPTION1/e; Got EXCEPTION2/OTHERS;
SELECT f1('f');
f1('f')
Got EXCEPTION1/f; Got EXCEPTION2/OTHERS;
DROP FUNCTION f1;
#
# Checking that resignaled user exceptions are further caught by name
#
CREATE FUNCTION f1(c VARCHAR) RETURN VARCHAR
AS
e EXCEPTION;
f EXCEPTION;
a VARCHAR(64):='';
BEGIN
BEGIN
IF c = 'e' THEN RAISE e; END IF;
IF c = 'f' THEN RAISE f; END IF;
EXCEPTION
WHEN e THEN BEGIN a:='Got EXCEPTION1/e; '; RAISE; END;
WHEN f THEN BEGIN a:='Got EXCEPTION1/f; '; RAISE; END;
END;
RETURN 'Got no exceptions';
EXCEPTION
WHEN e THEN RETURN a || 'Got EXCEPTION2/e;';
END;
$$
SELECT f1('');
f1('')
Got no exceptions
SELECT f1('e');
f1('e')
Got EXCEPTION1/e; Got EXCEPTION2/e;
SELECT f1('f');
ERROR 45000: Unhandled user-defined exception condition
DROP FUNCTION f1;
#
# Checking that resignaled user exceptions are further caught by OTHERS
#
CREATE FUNCTION f1(c VARCHAR) RETURN VARCHAR
AS
e EXCEPTION;
f EXCEPTION;
a VARCHAR(64):='';
BEGIN
BEGIN
IF c = 'e' THEN RAISE e; END IF;
IF c = 'f' THEN RAISE f; END IF;
EXCEPTION
WHEN e THEN BEGIN a:='Got EXCEPTION1/e; '; RAISE; END;
WHEN f THEN BEGIN a:='Got EXCEPTION1/f; '; RAISE; END;
END;
RETURN 'Got no exceptions';
EXCEPTION
WHEN OTHERS THEN RETURN a || 'Got EXCEPTION2/OTHERS;';
END;
$$
SELECT f1('');
f1('')
Got no exceptions
SELECT f1('e');
f1('e')
Got EXCEPTION1/e; Got EXCEPTION2/OTHERS;
SELECT f1('f');
f1('f')
Got EXCEPTION1/f; Got EXCEPTION2/OTHERS;
DROP FUNCTION f1;
#
# End of MDEV-10587 sql_mode=ORACLE: User defined exceptions
#
#
# MDEV-12088 sql_mode=ORACLE: Do not require BEGIN..END in multi-statement exception handlers in THEN clause
#
CREATE TABLE t1 (a INT PRIMARY KEY);
INSERT INTO t1 VALUES (10),(20),(30);
CREATE PROCEDURE p1(a INT) AS
BEGIN
INSERT INTO t1 (a) VALUES (a);
EXCEPTION
WHEN DUP_VAL_ON_INDEX THEN
a:= a+1;
INSERT INTO t1 VALUES (a);
WHEN OTHERS THEN
NULL;
NULL;
END;
$$
CALL p1(30);
SELECT * FROM t1;
a
10
20
30
31
DROP PROCEDURE p1;
DROP TABLE t1;