SET sql_mode=ORACLE;
#
# MDEV-10582 sql_mode=ORACLE: explicit cursor attributes %ISOPEN, %ROWCOUNT, %FOUND, %NOTFOUND
#
#
# Cursor attributes outside of an SP context
#
SELECT c%ISOPEN;
ERROR 42000: Undefined CURSOR: c
SELECT c%FOUND;
ERROR 42000: Undefined CURSOR: c
SELECT c%NOTFOUND;
ERROR 42000: Undefined CURSOR: c
SELECT c%ROWCOUNT;
ERROR 42000: Undefined CURSOR: c
#
# Undefinite cursor attributes
#
CREATE PROCEDURE p1
AS
BEGIN
SELECT c%ISOPEN;
END;
$$
ERROR 42000: Undefined CURSOR: c
CREATE PROCEDURE p1
AS
BEGIN
SELECT c%ROWCOUNT;
END;
$$
ERROR 42000: Undefined CURSOR: c
CREATE PROCEDURE p1
AS
BEGIN
SELECT c%FOUND;
END;
$$
ERROR 42000: Undefined CURSOR: c
CREATE PROCEDURE p1
AS
BEGIN
SELECT c%NOTFOUND;
END;
$$
ERROR 42000: Undefined CURSOR: c
#
# Not opened cursor attributes %FOUND, %NOTFOUND, %ROWCOUNT
#
CREATE PROCEDURE p1
AS
CURSOR c IS SELECT 1 AS c FROM DUAL;
BEGIN
SELECT c%ROWCOUNT;
END;
$$
CALL p1;
ERROR 24000: Cursor is not open
DROP PROCEDURE p1;
CREATE PROCEDURE p1
AS
CURSOR c IS SELECT 1 AS c FROM DUAL;
BEGIN
SELECT c%FOUND;
END;
$$
CALL p1;
ERROR 24000: Cursor is not open
DROP PROCEDURE p1;
CREATE PROCEDURE p1
AS
CURSOR c IS SELECT 1 AS c FROM DUAL;
BEGIN
SELECT c%NOTFOUND;
END;
$$
CALL p1;
ERROR 24000: Cursor is not open
DROP PROCEDURE p1;
#
# Not opened cursor attributes %FOUND, %NOTFOUND, %ROWCOUNT with INVALID_CURSOR exception
#
CREATE PROCEDURE p1
AS
CURSOR c IS SELECT 1 AS c FROM DUAL;
BEGIN
SELECT c%ROWCOUNT;
EXCEPTION
WHEN INVALID_CURSOR THEN SELECT 'INVALID_CURSOR caught' AS msg;
END;
$$
CALL p1;
c%ROWCOUNT
msg
INVALID_CURSOR caught
DROP PROCEDURE p1;
CREATE PROCEDURE p1
AS
CURSOR c IS SELECT 1 AS c FROM DUAL;
BEGIN
SELECT c%FOUND;
EXCEPTION
WHEN INVALID_CURSOR THEN SELECT 'INVALID_CURSOR caught' AS msg;
END;
$$
CALL p1;
c%FOUND
msg
INVALID_CURSOR caught
DROP PROCEDURE p1;
CREATE PROCEDURE p1
AS
CURSOR c IS SELECT 1 AS c FROM DUAL;
BEGIN
SELECT c%NOTFOUND;
EXCEPTION
WHEN INVALID_CURSOR THEN SELECT 'INVALID_CURSOR caught' AS msg;
END;
$$
CALL p1;
c%NOTFOUND
msg
INVALID_CURSOR caught
DROP PROCEDURE p1;
#
# print()
#
CREATE TABLE t1 (a INT);
CREATE PROCEDURE p1
AS
CURSOR c IS SELECT * FROM t1 ORDER BY a;
BEGIN
EXPLAIN EXTENDED SELECT c%ISOPEN, c%ROWCOUNT, c%FOUND, c%NOTFOUND;
END;
$$
CALL p1();
id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	SIMPLE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
Warnings:
Note	1003	select "c"%ISOPEN AS "c%ISOPEN","c"%ROWCOUNT AS "c%ROWCOUNT","c"%FOUND AS "c%FOUND","c"%NOTFOUND AS "c%NOTFOUND"
DROP PROCEDURE p1;
DROP TABLE t1;
#
# Declared data type of the attributes
#
CREATE TABLE t1 (a INT);
INSERT INTO t1 VALUES (10);
CREATE PROCEDURE p1
AS
CURSOR c IS SELECT * FROM t1 ORDER BY a;
BEGIN
OPEN c;
CREATE TABLE t2 AS SELECT c%ISOPEN, c%ROWCOUNT, c%FOUND, c%NOTFOUND;
SHOW CREATE TABLE t2;
DROP TABLE t2;
CLOSE c;
END;
$$
CALL p1();
Table	Create Table
t2	CREATE TABLE "t2" (
  "c%ISOPEN" int(1) NOT NULL,
  "c%ROWCOUNT" bigint(21) NOT NULL,
  "c%FOUND" int(1) DEFAULT NULL,
  "c%NOTFOUND" int(1) DEFAULT NULL
)
DROP PROCEDURE p1;
DROP TABLE t1;
#
# Core functionality
#
CREATE TABLE t1 (a INT);
INSERT INTO t1 VALUES (10);
INSERT INTO t1 VALUES (20);
INSERT INTO t1 VALUES (30);
CREATE PROCEDURE p1
AS
a INT:=0;
CURSOR c IS SELECT * FROM t1 ORDER BY a;
BEGIN
SELECT a, c%ISOPEN;
OPEN c;
/*
After OPEN and before FETCH:
- %ROWCOUNT returns 0
- %FOUND and %NOTFOUND return NULL
*/
SELECT a, c%ISOPEN, c%ROWCOUNT, c%FOUND, c%NOTFOUND;
FETCH c INTO a;
SELECT a, c%ISOPEN, c%ROWCOUNT, c%FOUND, c%NOTFOUND;
FETCH c INTO a;
SELECT a, c%ISOPEN, c%ROWCOUNT, c%FOUND, c%NOTFOUND;
FETCH c INTO a;
SELECT a, c%ISOPEN, c%ROWCOUNT, c%FOUND, c%NOTFOUND;
FETCH c INTO a;
SELECT a, c%ISOPEN, c%ROWCOUNT, c%FOUND, c%NOTFOUND;
CLOSE c;
SELECT a, c%ISOPEN;
/*
After reopen and before FETCH:
- %ROWCOUNT returns 0
- %FOUND and %NOTFOUND return NULL
*/
OPEN c;
SELECT a, c%ISOPEN, c%ROWCOUNT, c%FOUND, c%NOTFOUND;
FETCH c INTO a;
SELECT a, c%ISOPEN, c%ROWCOUNT, c%FOUND, c%NOTFOUND;
CLOSE c;
END;
$$
CALL p1();
a	c%ISOPEN
0	0
a	c%ISOPEN	c%ROWCOUNT	c%FOUND	c%NOTFOUND
0	1	0	NULL	NULL
a	c%ISOPEN	c%ROWCOUNT	c%FOUND	c%NOTFOUND
10	1	1	1	0
a	c%ISOPEN	c%ROWCOUNT	c%FOUND	c%NOTFOUND
20	1	2	1	0
a	c%ISOPEN	c%ROWCOUNT	c%FOUND	c%NOTFOUND
30	1	3	1	0
a	c%ISOPEN	c%ROWCOUNT	c%FOUND	c%NOTFOUND
30	1	3	0	1
a	c%ISOPEN
30	0
a	c%ISOPEN	c%ROWCOUNT	c%FOUND	c%NOTFOUND
30	1	0	NULL	NULL
a	c%ISOPEN	c%ROWCOUNT	c%FOUND	c%NOTFOUND
10	1	1	1	0
DROP PROCEDURE p1;
DROP TABLE t1;
#
# %NOTFOUND as a loop exit condition
#
CREATE TABLE t1 (a INT);
INSERT INTO t1 VALUES (10);
INSERT INTO t1 VALUES (20);
INSERT INTO t1 VALUES (30);
CREATE PROCEDURE p1
AS
a INT:=0;
CURSOR c IS SELECT * FROM t1 ORDER BY a;
BEGIN
OPEN c;
LOOP
FETCH c INTO a;
EXIT WHEN c%NOTFOUND;
SELECT a;
END LOOP;
CLOSE c;
END;
$$
CALL p1();
a
10
a
20
a
30
DROP PROCEDURE p1;
DROP TABLE t1;
#
# %FOUND as a loop exit condition
#
CREATE TABLE t1 (a INT);
INSERT INTO t1 VALUES (10);
INSERT INTO t1 VALUES (20);
INSERT INTO t1 VALUES (30);
CREATE PROCEDURE p1
AS
a INT:=0;
CURSOR c IS SELECT * FROM t1 ORDER BY a;
BEGIN
OPEN c;
LOOP
FETCH c INTO a;
EXIT WHEN NOT c%FOUND;
SELECT a;
END LOOP;
CLOSE c;
END;
$$
CALL p1();
a
10
a
20
a
30
DROP PROCEDURE p1;
DROP TABLE t1;