SET @start_value = @@global.max_connect_errors; SELECT @start_value; @start_value 100 '#--------------------FN_DYNVARS_073_01------------------------#' SET @@global.max_connect_errors = 5000; SET @@global.max_connect_errors = DEFAULT; SELECT @@global.max_connect_errors; @@global.max_connect_errors 100 '#---------------------FN_DYNVARS_073_02-------------------------#' SET @@global.max_connect_errors = @start_value; SELECT @@global.max_connect_errors = 100; @@global.max_connect_errors = 100 1 '#--------------------FN_DYNVARS_073_03------------------------#' SET @@global.max_connect_errors = 4096; SELECT @@global.max_connect_errors; @@global.max_connect_errors 4096 SET @@global.max_connect_errors = 4294967294; SELECT @@global.max_connect_errors; @@global.max_connect_errors 4294967294 SET @@global.max_connect_errors = 4294967295; SELECT @@global.max_connect_errors; @@global.max_connect_errors 4294967295 SET @@global.max_connect_errors = 1; SELECT @@global.max_connect_errors; @@global.max_connect_errors 1 SET @@global.max_connect_errors = 2; SELECT @@global.max_connect_errors; @@global.max_connect_errors 2 '#--------------------FN_DYNVARS_073_04-------------------------#' SET @@global.max_connect_errors = -1; Warnings: Warning 1292 Truncated incorrect max_connect_errors value: '-1' SELECT @@global.max_connect_errors; @@global.max_connect_errors 1 SET @@global.max_connect_errors = 100000000000; SELECT @@global.max_connect_errors; @@global.max_connect_errors 100000000000 SET @@global.max_connect_errors = 10000.01; ERROR 42000: Incorrect argument type to variable 'max_connect_errors' SELECT @@global.max_connect_errors; @@global.max_connect_errors 100000000000 SET @@global.max_connect_errors = -1024; Warnings: Warning 1292 Truncated incorrect max_connect_errors value: '-1024' SELECT @@global.max_connect_errors; @@global.max_connect_errors 1 SET @@global.max_connect_errors = 0; Warnings: Warning 1292 Truncated incorrect max_connect_errors value: '0' SELECT @@global.max_connect_errors; @@global.max_connect_errors 1 SET @@global.max_connect_errors = 4294967296; SELECT @@global.max_connect_errors; @@global.max_connect_errors 4294967296 SET @@global.max_connect_errors = ON; ERROR 42000: Incorrect argument type to variable 'max_connect_errors' SELECT @@global.max_connect_errors; @@global.max_connect_errors 4294967296 SET @@global.max_connect_errors = 'test'; ERROR 42000: Incorrect argument type to variable 'max_connect_errors' SELECT @@global.max_connect_errors; @@global.max_connect_errors 4294967296 '#-------------------FN_DYNVARS_073_05----------------------------#' SET @@session.max_connect_errors = 4096; ERROR HY000: Variable 'max_connect_errors' is a GLOBAL variable and should be set with SET GLOBAL SELECT @@session.max_connect_errors; ERROR HY000: Variable 'max_connect_errors' is a GLOBAL variable '#----------------------FN_DYNVARS_073_06------------------------#' SELECT @@global.max_connect_errors = VARIABLE_VALUE FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES WHERE VARIABLE_NAME='max_connect_errors'; @@global.max_connect_errors = VARIABLE_VALUE 1 SELECT @@max_connect_errors = VARIABLE_VALUE FROM INFORMATION_SCHEMA.SESSION_VARIABLES WHERE VARIABLE_NAME='max_connect_errors'; @@max_connect_errors = VARIABLE_VALUE 1 '#---------------------FN_DYNVARS_073_07----------------------#' SET @@global.max_connect_errors = TRUE; SELECT @@global.max_connect_errors; @@global.max_connect_errors 1 SET @@global.max_connect_errors = FALSE; Warnings: Warning 1292 Truncated incorrect max_connect_errors value: '0' SELECT @@global.max_connect_errors; @@global.max_connect_errors 1 '#---------------------FN_DYNVARS_073_08----------------------#' SET @@global.max_connect_errors = 5000; SELECT @@max_connect_errors = @@global.max_connect_errors; @@max_connect_errors = @@global.max_connect_errors 1 '#---------------------FN_DYNVARS_073_09----------------------#' SET max_connect_errors = 6000; ERROR HY000: Variable 'max_connect_errors' is a GLOBAL variable and should be set with SET GLOBAL SELECT @@max_connect_errors; @@max_connect_errors 5000 SET local.max_connect_errors = 7000; 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 'max_connect_errors = 7000' at line 1 SELECT local.max_connect_errors; ERROR 42S02: Unknown table 'local' in field list SET global.max_connect_errors = 8000; 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 'max_connect_errors = 8000' at line 1 SELECT global.max_connect_errors; ERROR 42S02: Unknown table 'global' in field list SELECT max_connect_errors = @@session.max_connect_errors; ERROR 42S22: Unknown column 'max_connect_errors' in 'field list' SET @@global.max_connect_errors = @start_value; SELECT @@global.max_connect_errors; @@global.max_connect_errors 100