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SET @session_start_value = @@session.sql_big_selects;
SELECT @session_start_value;
@session_start_value
1
'#--------------------FN_DYNVARS_153_01------------------------#'
SET @@session.sql_big_selects = 0;
SET @@session.sql_big_selects = DEFAULT;
SELECT @@session.sql_big_selects;
@@session.sql_big_selects
1
'#---------------------FN_DYNVARS_153_02-------------------------#'
SET sql_big_selects = 1;
SELECT @@sql_big_selects;
@@sql_big_selects
1
SELECT session.sql_big_selects;
ERROR 42S02: Unknown table 'session' in field list
SELECT local.sql_big_selects;
ERROR 42S02: Unknown table 'local' in field list
SET session sql_big_selects = 0;
SELECT @@session.sql_big_selects;
@@session.sql_big_selects
0
'#--------------------FN_DYNVARS_153_03------------------------#'
SET @@session.sql_big_selects = 0;
SELECT @@session.sql_big_selects;
@@session.sql_big_selects
0
SET @@session.sql_big_selects = 1;
SELECT @@session.sql_big_selects;
@@session.sql_big_selects
1
'#--------------------FN_DYNVARS_153_04-------------------------#'
SET @@session.sql_big_selects = -1;
ERROR 42000: Variable 'sql_big_selects' can't be set to the value of '-1'
SET @@session.sql_big_selects = 2;
ERROR 42000: Variable 'sql_big_selects' can't be set to the value of '2'
SET @@session.sql_big_selects = "T";
ERROR 42000: Variable 'sql_big_selects' can't be set to the value of 'T'
SET @@session.sql_big_selects = "Y";
ERROR 42000: Variable 'sql_big_selects' can't be set to the value of 'Y'
SET @@session.sql_big_selects = TRÜE;
ERROR 42000: Variable 'sql_big_selects' can't be set to the value of 'TRÜE'
SET @@session.sql_big_selects = ÕN;
ERROR 42000: Variable 'sql_big_selects' can't be set to the value of 'ÕN'
SET @@session.sql_big_selects = OF;
ERROR 42000: Variable 'sql_big_selects' can't be set to the value of 'OF'
SET @@session.sql_big_selects = ÓFF;
ERROR 42000: Variable 'sql_big_selects' can't be set to the value of 'ÓFF'
SET @@session.sql_big_selects = '¹';
ERROR 42000: Variable 'sql_big_selects' can't be set to the value of '¹'
SET @@session.sql_big_selects = NO;
ERROR 42000: Variable 'sql_big_selects' can't be set to the value of 'NO'
'#-------------------FN_DYNVARS_153_05----------------------------#'
SET @@global.sql_big_selects = 1-@@global.sql_big_selects;
SELECT @@global.sql_big_selects;
@@global.sql_big_selects
0
SET @@global.sql_big_selects = 1-@@global.sql_big_selects;
'#----------------------FN_DYNVARS_153_06------------------------#'
SELECT count(VARIABLE_VALUE)
FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES
WHERE VARIABLE_NAME='sql_big_selects';
count(VARIABLE_VALUE)
1
'#----------------------FN_DYNVARS_153_07------------------------#'
SELECT IF(@@session.sql_big_selects, "ON", "OFF") = VARIABLE_VALUE
FROM INFORMATION_SCHEMA.SESSION_VARIABLES
WHERE VARIABLE_NAME='sql_big_selects';
IF(@@session.sql_big_selects, "ON", "OFF") = VARIABLE_VALUE
1
SELECT @@session.sql_big_selects;
@@session.sql_big_selects
1
SELECT VARIABLE_VALUE
FROM INFORMATION_SCHEMA.SESSION_VARIABLES
WHERE VARIABLE_NAME='sql_big_selects';
VARIABLE_VALUE
ON
'#---------------------FN_DYNVARS_153_08-------------------------#'
SET @@session.sql_big_selects = OFF;
SELECT @@session.sql_big_selects;
@@session.sql_big_selects
0
SET @@session.sql_big_selects = ON;
SELECT @@session.sql_big_selects;
@@session.sql_big_selects
1
'#---------------------FN_DYNVARS_153_09----------------------#'
SET @@session.sql_big_selects = TRUE;
SELECT @@session.sql_big_selects;
@@session.sql_big_selects
1
SET @@session.sql_big_selects = FALSE;
SELECT @@session.sql_big_selects;
@@session.sql_big_selects
0
SET @@session.sql_big_selects = @session_start_value;
SELECT @@session.sql_big_selects;
@@session.sql_big_selects
1
|
