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;
Warnings:
Warning	1292	Truncated incorrect max_connect_errors value: '100000000000'
SELECT @@global.max_connect_errors;
@@global.max_connect_errors
4294967295
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
4294967295
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;
Warnings:
Warning	1292	Truncated incorrect max_connect_errors value: '4294967296'
SELECT @@global.max_connect_errors;
@@global.max_connect_errors
4294967295
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
4294967295
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
4294967295
'#-------------------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
