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