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21 lines
422 B
Plaintext
21 lines
422 B
Plaintext
drop table if exists t1;
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create table t1 (col1 integer primary key, col2 integer) engine=innodb;
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insert t1 values (1,100);
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create function f1 () returns integer begin
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declare var1 int;
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select col2 into var1 from t1 where col1=1 for update;
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return var1;
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end|
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start transaction;
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select f1();
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f1()
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100
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update t1 set col2=0 where col1=1;
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select * from t1;
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col1 col2
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1 100
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rollback;
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rollback;
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drop table t1;
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drop function f1;
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