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22 lines
834 B
Text
22 lines
834 B
Text
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select @@global.pid_file;
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@@global.pid_file
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MYSQLTEST_VARDIR/run/mysqld.1.pid
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select @@session.pid_file;
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ERROR HY000: Variable 'pid_file' is a GLOBAL variable
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show global variables like 'pid_file';
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Variable_name Value
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pid_file MYSQLTEST_VARDIR/run/mysqld.1.pid
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show session variables like 'pid_file';
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Variable_name Value
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pid_file MYSQLTEST_VARDIR/run/mysqld.1.pid
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select * from information_schema.global_variables where variable_name='pid_file';
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VARIABLE_NAME VARIABLE_VALUE
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PID_FILE MYSQLTEST_VARDIR/run/mysqld.1.pid
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select * from information_schema.session_variables where variable_name='pid_file';
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VARIABLE_NAME VARIABLE_VALUE
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PID_FILE MYSQLTEST_VARDIR/run/mysqld.1.pid
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set global pid_file=1;
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ERROR HY000: Variable 'pid_file' is a read only variable
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set session pid_file=1;
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ERROR HY000: Variable 'pid_file' is a read only variable
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