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select @@global.myisam_recover_options;
@@global.myisam_recover_options
BACKUP,QUICK
select @@session.myisam_recover_options;
ERROR HY000: Variable 'myisam_recover_options' is a GLOBAL variable
show global variables like 'myisam_recover_options';
Variable_name Value
myisam_recover_options BACKUP,QUICK
show session variables like 'myisam_recover_options';
Variable_name Value
myisam_recover_options BACKUP,QUICK
select * from information_schema.global_variables where variable_name='myisam_recover_options';
VARIABLE_NAME VARIABLE_VALUE
MYISAM_RECOVER_OPTIONS BACKUP,QUICK
select * from information_schema.session_variables where variable_name='myisam_recover_options';
VARIABLE_NAME VARIABLE_VALUE
MYISAM_RECOVER_OPTIONS BACKUP,QUICK
set global myisam_recover_options=1;
ERROR HY000: Variable 'myisam_recover_options' is a read only variable
set session myisam_recover_options=1;
ERROR HY000: Variable 'myisam_recover_options' is a read only variable
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