SET @start_value = @@global.table_lock_wait_timeout;
SELECT @start_value;
@start_value
50
'#--------------------FN_DYNVARS_001_01------------------------#'
SET @@global.table_lock_wait_timeout = 99;
SET @@global.table_lock_wait_timeout = DeFAULT;
SELECT @@global.table_lock_wait_timeout;
@@global.table_lock_wait_timeout
50
'#---------------------FN_DYNVARS_001_02-------------------------#'
SET @@global.table_lock_wait_timeout =Default;
SELECT @@global.table_lock_wait_timeout = 50;
@@global.table_lock_wait_timeout = 50
1
'#--------------------FN_DYNVARS_001_03------------------------#'
SET @@global.table_lock_wait_timeout = 8;
SELECT @@global.table_lock_wait_timeout ;
@@global.table_lock_wait_timeout
8
SET @@global.table_lock_wait_timeout = 1;
SELECT @@global.table_lock_wait_timeout ;
@@global.table_lock_wait_timeout
1
SET @@global.table_lock_wait_timeout = 1073741824;
SELECT @@global.table_lock_wait_timeout ;
@@global.table_lock_wait_timeout
1073741824
SET @@global.table_lock_wait_timeout = 18000;
SELECT @@global.table_lock_wait_timeout ;
@@global.table_lock_wait_timeout
18000
SET @@global.table_lock_wait_timeout = 65535;
SELECT @@global.table_lock_wait_timeout ;
@@global.table_lock_wait_timeout
65535
'#--------------------FN_DYNVARS_001_04-------------------------#'
SET @@global.table_lock_wait_timeout = -1;
Warnings:
Warning	1292	Truncated incorrect table_lock_wait_timeout value: '0'
SET @@global.table_lock_wait_timeout= 100000000000;
Warnings:
Warning	1292	Truncated incorrect table_lock_wait_timeout value: '100000000000'
SET @@global.table_lock_wait_timeout= -1024;
Warnings:
Warning	1292	Truncated incorrect table_lock_wait_timeout value: '0'
SET @@global.table_lock_wait_timeout= 0;
Warnings:
Warning	1292	Truncated incorrect table_lock_wait_timeout value: '0'
'Bug # 34837: Errors are not coming on assigning invalid values to variable';
SET @@global.table_lock_wait_timeout= 10000.01;
ERROR 42000: Incorrect argument type to variable 'table_lock_wait_timeout'
SET @@global.table_lock_wait_timeout= ON;
ERROR 42000: Incorrect argument type to variable 'table_lock_wait_timeout'
SET @@global.table_lock_wait_timeout= 'test';
ERROR 42000: Incorrect argument type to variable 'table_lock_wait_timeout'
SET @@global.table_lock_wait_timeout= '';
ERROR 42000: Incorrect argument type to variable 'table_lock_wait_timeout'
'#-------------------FN_DYNVARS_001_05----------------------------#'
SET @@session.table_lock_wait_timeout= 0;
ERROR HY000: Variable 'table_lock_wait_timeout' is a GLOBAL variable and should be set with SET GLOBAL
SELECT @@table_lock_wait_timeout;
@@table_lock_wait_timeout
1
'#----------------------FN_DYNVARS_001_06------------------------#'
SELECT @@global.table_lock_wait_timeout= VARIABLE_VALUE 
FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES 
WHERE VARIABLE_NAME='table_lock_wait_timeout';
@@global.table_lock_wait_timeout= VARIABLE_VALUE
1
'#---------------------FN_DYNVARS_001_09----------------------#'
SET @@global.table_lock_wait_timeout= TRUE;
SELECT @@global.table_lock_wait_timeout;
@@global.table_lock_wait_timeout
1
SET @@global.table_lock_wait_timeout= FALSE;
Warnings:
Warning	1292	Truncated incorrect table_lock_wait_timeout value: '0'
SELECT @@global.table_lock_wait_timeout;
@@global.table_lock_wait_timeout
1
'#---------------------FN_DYNVARS_001_10----------------------#'
SET @@global.table_lock_wait_timeout= 10;
SELECT @@table_lock_wait_timeout= @@global.table_lock_wait_timeout;
@@table_lock_wait_timeout= @@global.table_lock_wait_timeout
1
'#---------------------FN_DYNVARS_001_11----------------------#'
SET table_lock_wait_timeout= 8;
ERROR HY000: Variable 'table_lock_wait_timeout' is a GLOBAL variable and should be set with SET GLOBAL
SET global.table_lock_wait_timeout= 10;
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 'table_lock_wait_timeout= 10' at line 1
SELECT global.table_lock_wait_timeout;
ERROR 42S02: Unknown table 'global' in field list
SELECT table_lock_wait_timeout= @@session.table_lock_wait_timeout;
ERROR 42S22: Unknown column 'table_lock_wait_timeout' in 'field list'
SET @@global.table_lock_wait_timeout= @start_value;
SELECT @@global.table_lock_wait_timeout;
@@global.table_lock_wait_timeout
50