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14 lines
465 B
Text
14 lines
465 B
Text
drop table if exists t1;
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CREATE TABLE t1 (id CHAR(12) not null, PRIMARY KEY (id));
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insert into t1 values ('000000000001'),('000000000002');
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explain select * from t1 where id=000000000001;
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id select_type table type possible_keys key key_len ref rows Extra
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1 FIRST t1 index PRIMARY PRIMARY 12 NULL 2 where used; Using index
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select * from t1 where id=000000000001;
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id
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000000000001
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delete from t1 where id=000000000002;
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select * from t1;
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id
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000000000001
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drop table t1;
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