Edit File: time_format_basic.result
select @@global.time_format; @@global.time_format %H:%i:%s select @@session.time_format; ERROR HY000: Variable 'time_format' is a GLOBAL variable show global variables like 'time_format'; Variable_name Value time_format %H:%i:%s show session variables like 'time_format'; Variable_name Value time_format %H:%i:%s select * from information_schema.global_variables where variable_name='time_format'; VARIABLE_NAME VARIABLE_VALUE TIME_FORMAT %H:%i:%s select * from information_schema.session_variables where variable_name='time_format'; VARIABLE_NAME VARIABLE_VALUE TIME_FORMAT %H:%i:%s set global time_format=1; ERROR HY000: Variable 'time_format' is a read only variable set session time_format=1; ERROR HY000: Variable 'time_format' is a read only variable
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