22 lines
684 B
Plaintext
22 lines
684 B
Plaintext
select @@global.back_log;
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@@global.back_log
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151
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select @@session.back_log;
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ERROR HY000: Variable 'back_log' is a GLOBAL variable
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show global variables like 'back_log';
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Variable_name Value
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back_log 151
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show session variables like 'back_log';
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Variable_name Value
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back_log 151
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select * from performance_schema.global_variables where variable_name='back_log';
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VARIABLE_NAME VARIABLE_VALUE
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back_log 151
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select * from performance_schema.session_variables where variable_name='back_log';
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VARIABLE_NAME VARIABLE_VALUE
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back_log 151
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set global back_log=1;
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ERROR HY000: Variable 'back_log' is a read only variable
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set session back_log=1;
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ERROR HY000: Variable 'back_log' is a read only variable
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