SET @global_start_value = @@global.init_connect; SELECT @global_start_value AS INIT_VALUE; INIT_VALUE '#--------------------FN_DYNVARS_036_01------------------#' SELECT init_connect; ERROR 42S22: Unknown column 'init_connect' in 'field list' SELECT @@init_connect; @@init_connect SET @@global.init_connect='SET autocomit=0'; SELECT @@global.init_connect; @@global.init_connect SET autocomit=0 SET global init_connect='SET autocomit=0'; SELECT global init_connect; ERROR 42S22: Unknown column 'global' in 'field list' SELECT @@global init_connect; ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'init_connect' at line 1 '#--------------------FN_DYNVARS_036_02-------------------------#' SET @@global.init_connect = 'SET join_buffer_size=8200'; SET @@global.init_connect = DEFAULT; SELECT @@global.init_connect; @@global.init_connect '#--------------------FN_DYNVARS_036_03-------------------------#' SET @@session.init_connect = ''; ERROR HY000: Variable 'init_connect' is a GLOBAL variable and should be set with SET GLOBAL SET @@init_connect = ''; ERROR HY000: Variable 'init_connect' is a GLOBAL variable and should be set with SET GLOBAL SELECT @@session.init_connect; ERROR HY000: Variable 'init_connect' is a GLOBAL variable SELECT @@local.init_connect; ERROR HY000: Variable 'init_connect' is a GLOBAL variable '#--------------------FN_DYNVARS_036_04-------------------------#' SET @@global.init_connect=""; SELECT @@global.init_connect; @@global.init_connect SET @@global.init_connect='SELECT 1,"abc"'; SELECT @@global.init_connect; @@global.init_connect SELECT 1,"abc" SET @@global.init_connect='SET @yoursql="mysql"'; SELECT @@global.init_connect; @@global.init_connect SET @yoursql="mysql" SET @@global.init_connect="SET autocomit=0;REVOKE ALL ON INFORMATION_SCHEMA.*"; SELECT @@global.init_connect; @@global.init_connect SET autocomit=0;REVOKE ALL ON INFORMATION_SCHEMA.* SET @@global.init_connect='SHOW VARIABLES'; SELECT @@global.init_connect; @@global.init_connect SHOW VARIABLES SET @@global.init_connect = NULL; SELECT @@global.init_connect; @@global.init_connect SET @@global.init_connect='abc 123 +-*/'; SELECT @@global.init_connect; @@global.init_connect abc 123 +-*/ SET @@global.init_connect=this_will_give_syntax_error; SELECT @@global.init_connect; @@global.init_connect this_will_give_syntax_error SET @@global.init_connect = init_slave; SELECT @@global.init_connect; @@global.init_connect init_slave '#--------------------FN_DYNVARS_036_05-------------------------#' SET @@global.init_connect = true; ERROR 42000: Incorrect argument type to variable 'init_connect' SET @@global.init_connect = false; ERROR 42000: Incorrect argument type to variable 'init_connect' SET @@global.init_connect = 1.1; ERROR 42000: Incorrect argument type to variable 'init_connect' SET @@global.init_connect = 0; ERROR 42000: Incorrect argument type to variable 'init_connect' SET @@global.init_connect = 1; ERROR 42000: Incorrect argument type to variable 'init_connect' SET @@global.init_connect = -1; ERROR 42000: Incorrect argument type to variable 'init_connect' SET @@global.init_connect = ON; SELECT @@global.init_connect; @@global.init_connect ON '#--------------------FN_DYNVARS_036_06-------------------------#' SELECT @@global.init_connect = (SELECT VARIABLE_VALUE FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES WHERE VARIABLE_NAME='init_connect') AS res; res 1 SET @@global.init_connect = @global_start_value; SELECT @@global.init_connect; @@global.init_connect