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Derived tables !

This commit is contained in:
Sinisa@sinisa.nasamreza.org
2002-03-26 15:06:05 +02:00
parent 8a7cd0e4df
commit 22d4f87e69
13 changed files with 208 additions and 12 deletions

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@@ -0,0 +1,10 @@
drop table if exists t1,t2;
CREATE TABLE t1 (a int not null, b char (10) not null);
insert into t1 values(1,'a'),(2,'b'),(3,'c'),(3,'c');
CREATE TABLE t2 (a int not null, b char (10) not null);
insert into t2 values (3,'c'),(4,'d'),(5,'f'),(6,'e');
select t1.a,t3.y from t1,(select a as y from t2 where b='c') as t3 where t1.a = t3.y;
a y
3 3
3 3
drop table if exists t1.t2;

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@@ -177,4 +177,14 @@ a
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(select * from t1 limit 2) union (select * from t2 limit 20,3);
a
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set SQL_SELECT_LIMIT=2;
(select * from t1 limit 2) union (select * from t2 limit 3);
a
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set SQL_SELECT_LIMIT=DEFAULT;
drop table t1,t2;