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SET @session_max_recursion_depth = @@SESSION.max_sp_recursion_depth;
'#--------------------FN_DYNVARS_099_01-------------------------#'
CONNECT test_con1,localhost,root,,;
connection test_con1;
SET @@session.max_sp_recursion_depth = 10;
SELECT @@session.max_sp_recursion_depth;
@@session.max_sp_recursion_depth
10
DROP PROCEDURE IF EXISTS sp_addRecords;
CREATE PROCEDURE sp_addRecords (IN var1 INT,IN var2 INT)
BEGIN
SELECT var1,var2;
IF var1 < var2 THEN
CALL sp_addRecords(var1+1,var2);
SELECT var1,var2;
END IF;
END //
CALL sp_addRecords(0,8);
var1 var2
0 8
var1 var2
1 8
var1 var2
2 8
var1 var2
3 8
var1 var2
4 8
var1 var2
5 8
var1 var2
6 8
var1 var2
7 8
var1 var2
8 8
var1 var2
7 8
var1 var2
6 8
var1 var2
5 8
var1 var2
4 8
var1 var2
3 8
var1 var2
2 8
var1 var2
1 8
var1 var2
0 8
'#--------------------FN_DYNVARS_099_02-------------------------#'
CONNECT test_con2,localhost,root,,;
connection test_con2;
SET @@session.max_sp_recursion_depth = 4;
SELECT @@session.max_sp_recursion_depth;
@@session.max_sp_recursion_depth
4
DROP PROCEDURE IF EXISTS sp_addRecords1;
CREATE PROCEDURE sp_addRecords1 (IN var1 INT,IN var2 INT)
BEGIN
SELECT var1,var2;
IF var1 < var2 THEN
CALL sp_addRecords1(var1+1,var2);
SELECT var1,var2;
END IF;
END //
CALL sp_addRecords1(0,4);
var1 var2
0 4
var1 var2
1 4
var1 var2
2 4
var1 var2
3 4
var1 var2
4 4
var1 var2
3 4
var1 var2
2 4
var1 var2
1 4
var1 var2
0 4
'#---------------------FN_DYNVARS_99_03----------------------#'
SET @@max_sp_recursion_depth = 10;
DROP PROCEDURE IF EXISTS sp_addRecords2;
CREATE PROCEDURE sp_addRecords2(IN var1 INT,IN var2 INT)
BEGIN
SELECT var1,var2;
IF var1 < var2 THEN
CALL sp_addRecords2(var1+1,var2);
SELECT var1,var2;
END IF;
END //
CALL sp_addRecords2(0,8);
var1 var2
0 8
var1 var2
1 8
var1 var2
2 8
var1 var2
3 8
var1 var2
4 8
var1 var2
5 8
var1 var2
6 8
var1 var2
7 8
var1 var2
8 8
var1 var2
7 8
var1 var2
6 8
var1 var2
5 8
var1 var2
4 8
var1 var2
3 8
var1 var2
2 8
var1 var2
1 8
var1 var2
0 8
'#---------------------FN_DYNVARS_99_04----------------------#'
SET @@max_sp_recursion_depth = 4;
DROP PROCEDURE IF EXISTS sp_addRecords3;
CREATE PROCEDURE sp_addRecords3 (IN var1 INT,IN var2 INT)
BEGIN
SELECT var1,var2;
IF var1 < var2 THEN
CALL sp_addRecords3(var1+1,var2);
SELECT var1,var2;
END IF;
END //
Expected error 'SP Recursion limit'
CALL sp_addRecords3(0,8);
var1 var2
0 8
var1 var2
1 8
var1 var2
2 8
var1 var2
3 8
var1 var2
4 8
ERROR HY000: Recursive limit 4 (as set by the max_sp_recursion_depth variable) was exceeded for routine sp_addRecords3
connection default;
disconnect test_con1;
disconnect test_con2;
DROP PROCEDURE IF EXISTS sp_addRecords;
DROP PROCEDURE IF EXISTS sp_addRecords1;
DROP PROCEDURE IF EXISTS sp_addRecords2;
DROP PROCEDURE IF EXISTS sp_addRecords3;
SET @@SESSION.max_sp_recursion_depth = @session_max_recursion_depth;
|
