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19 lines
424 B
Text
19 lines
424 B
Text
flush status;
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show status like 'Table_lock%';
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Variable_name Value
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Table_locks_immediate 0
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Table_locks_waited 0
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SET SQL_LOG_BIN=0;
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drop table if exists t1;
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create table t1(n int) engine=myisam;
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insert into t1 values(1);
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lock tables t1 read;
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unlock tables;
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lock tables t1 read;
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update t1 set n = 3;
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unlock tables;
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show status like 'Table_lock%';
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Variable_name Value
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Table_locks_immediate 3
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Table_locks_waited 1
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drop table t1;
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