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