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20 lines
830 B
Text
20 lines
830 B
Text
select variable_name from information_schema.session_status where variable_name =
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(select variable_name from information_schema.session_status where variable_name = 'uptime');
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variable_name
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UPTIME
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select variable_name from information_schema.session_variables where variable_name =
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(select variable_name from information_schema.session_variables where variable_name = 'basedir');
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variable_name
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BASEDIR
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create table t1 (x int);
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create table t2 (x int);
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create table t3 (x int);
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create table t4 AS select table_name from information_schema.TABLES where table_schema = database() and table_type = 'BASE TABLE' ;
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delete from t4 where table_name not in (select table_name from information_schema.TABLES where table_schema = database() and table_type = 'BASE TABLE');
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select * from t4;
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table_name
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t1
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t2
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t3
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t4
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drop table t1, t2, t3, t4;
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