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35 lines
741 B
Text
35 lines
741 B
Text
drop table if exists t1,t2,t3;
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create table T1 (id int primary key, Word varchar(40) not null, Index(Word));
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INSERT INTO T1 VALUES (1, 'a'), (2, 'b'), (3, 'c');
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SELECT * FROM t1;
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id Word
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1 a
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2 b
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3 c
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SELECT T1.id from T1 LIMIT 1;
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id
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1
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SELECT T2.id from t1 as T2 LIMIT 1;
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id
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1
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SELECT T2.id from t1 as t2 LIMIT 1;
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Unknown table 'T2' in field list
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RENAME TABLE T1 TO T2;
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ALTER TABLE T2 ADD new_col int not null;
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ALTER TABLE T2 RENAME T3;
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show tables like 't_';
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Tables_in_test (t_)
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t3
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drop table t3;
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create table t1 (a int);
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select count(*) from T1;
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count(*)
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0
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select count(*) from t1;
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count(*)
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0
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select count(T1.a) from t1;
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Unknown table 'T1' in field list
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select count(bags.a) from t1 as Bags;
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Unknown table 'bags' in field list
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drop table t1;
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