SET @start_global_value=@@global.innodb_lock_wait_timeout;
SELECT @start_global_value;
@start_global_value
50
'#---------------------BS_STVARS_032_01----------------------#'
SELECT COUNT(@@GLOBAL.innodb_lock_wait_timeout);
COUNT(@@GLOBAL.innodb_lock_wait_timeout)
1
1 Expected
'#---------------------BS_STVARS_032_02----------------------#'
SET global innodb_lock_wait_timeout=60;
SELECT @@global.innodb_lock_wait_timeout;
@@global.innodb_lock_wait_timeout
60
SET session innodb_lock_wait_timeout=60;
SELECT @@session.innodb_lock_wait_timeout;
@@session.innodb_lock_wait_timeout
60
'#---------------------BS_STVARS_032_03----------------------#'
SELECT @@GLOBAL.innodb_lock_wait_timeout = VARIABLE_VALUE
FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES
WHERE VARIABLE_NAME='innodb_lock_wait_timeout';
@@GLOBAL.innodb_lock_wait_timeout = VARIABLE_VALUE
1
1 Expected
SELECT COUNT(@@GLOBAL.innodb_lock_wait_timeout);
COUNT(@@GLOBAL.innodb_lock_wait_timeout)
1
1 Expected
SELECT COUNT(VARIABLE_VALUE)
FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES 
WHERE VARIABLE_NAME='innodb_lock_wait_timeout';
COUNT(VARIABLE_VALUE)
1
1 Expected
'#---------------------BS_STVARS_032_04----------------------#'
SELECT @@innodb_lock_wait_timeout = @@GLOBAL.innodb_lock_wait_timeout;
@@innodb_lock_wait_timeout = @@GLOBAL.innodb_lock_wait_timeout
1
1 Expected
'#---------------------BS_STVARS_032_05----------------------#'
SELECT COUNT(@@innodb_lock_wait_timeout);
COUNT(@@innodb_lock_wait_timeout)
1
1 Expected
SELECT COUNT(@@local.innodb_lock_wait_timeout);
COUNT(@@local.innodb_lock_wait_timeout)
1
SELECT COUNT(@@SESSION.innodb_lock_wait_timeout);
COUNT(@@SESSION.innodb_lock_wait_timeout)
1
SELECT COUNT(@@GLOBAL.innodb_lock_wait_timeout);
COUNT(@@GLOBAL.innodb_lock_wait_timeout)
1
1 Expected
SELECT innodb_lock_wait_timeout = @@SESSION.innodb_lock_wait_timeout;
ERROR 42S22: Unknown column 'innodb_lock_wait_timeout' in 'field list'
SET @@global.innodb_lock_wait_timeout = @start_global_value;
SELECT @@global.innodb_lock_wait_timeout;
@@global.innodb_lock_wait_timeout
50