1
'#---------------------BS_STVARS_004_01----------------------#'
2
SELECT COUNT(@@GLOBAL.datadir);
3
COUNT(@@GLOBAL.datadir)
6
'#---------------------BS_STVARS_004_02----------------------#'
7
SET @@GLOBAL.datadir=1;
8
ERROR HY000: Variable 'datadir' is a read only variable
9
Expected error 'Read only variable'
10
SELECT COUNT(@@GLOBAL.datadir);
11
COUNT(@@GLOBAL.datadir)
14
'#---------------------BS_STVARS_004_03----------------------#'
15
SELECT @@GLOBAL.datadir = VARIABLE_VALUE
16
FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES
17
WHERE VARIABLE_NAME='datadir';
18
@@GLOBAL.datadir = VARIABLE_VALUE
21
SELECT COUNT(@@GLOBAL.datadir);
22
COUNT(@@GLOBAL.datadir)
25
SELECT COUNT(VARIABLE_VALUE)
26
FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES
27
WHERE VARIABLE_NAME='datadir';
31
'#---------------------BS_STVARS_004_04----------------------#'
32
SELECT @@datadir = @@GLOBAL.datadir;
33
@@datadir = @@GLOBAL.datadir
36
'#---------------------BS_STVARS_004_05----------------------#'
37
SELECT COUNT(@@datadir);
41
SELECT COUNT(@@local.datadir);
42
ERROR HY000: Variable 'datadir' is a GLOBAL variable
43
Expected error 'Variable is a GLOBAL variable'
44
SELECT COUNT(@@SESSION.datadir);
45
ERROR HY000: Variable 'datadir' is a GLOBAL variable
46
Expected error 'Variable is a GLOBAL variable'
47
SELECT COUNT(@@GLOBAL.datadir);
48
COUNT(@@GLOBAL.datadir)
51
SELECT datadir = @@SESSION.datadir;
52
ERROR 42S22: Unknown column 'datadir' in 'field list'
53
Expected error 'Readonly variable'