Tuesday, August 18, 2009

SQL Select INTO Statement

The SELECT INTO statement is most often used to create backup copies of tables or for archiving records.
Syntax SELECT column_name(s) INTO newtable [IN externaldatabase] FROM source
SELECT * INTO tbl3Backup FROM tbl3;
select * from tbl3Backup;
select * from tbl3;
drop table tbl3Backup;
SELECT * INTO tbl3Backup FROM tbl3 where m1>10;
select * from tbl3;
drop table tbl3Backup;
SELECT sno,m1,m2 INTO tbl3Backup FROM tbl3;
select * from tbl3Backup;
drop table tbl3Backup;
SELECT t1.Fname,t1.age,t2.address INTO tbl3Backup FROM tbl1 AS t1,tbl2 AS t2 WHERE t1.Fname=t2.Fname;/*we use all type JOIN*/
select * from tbl3Backup;

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