SQL Selection from 2 Tbales

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Hi All,

I have 2 tables Table1 and Table2.
Table1 have (A,B,C) columns. Table2 have (A,B,D).
Table1 Having 52 Rceords.
Table2 Having 5 records. These 5 are records are exist in Table1.

Now i want to select A,B,C,D from both tables. for non existing values it should show null.

example :

A B C D
1 10 null 25
2 10 85 null.

Please help me on this.

Regards,
Prasad

Posted 13-Nov-12 0:37am

Prasad Guduri

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Rob Branaghan · Accepted Answer · 2012-11-13T00:48:00

Solution 1

Hi, at a guess I believe the code below should do what you require.

SQL

SELECT
    t1.A
   ,t1.B
   ,t1.C
   ,t2.D
FROM
   Table1 t1
   LEFT OUTER JOIN Table2 t2 ON
      t1.A = t2.A AND
      t1.B = t2.B

I usually use a Left Outer Join onto the table I want a null to come from

So at a guess you will have NULL in D for all but 5 results.

Hope that helps

Posted 13-Nov-12 0:48am

Rob Branaghan

Comments

fjdiewornncalwe 13-Nov-12 16:57pm

+5. Good answer.

Rob Branaghan 13-Nov-12 17:20pm

Thanks Marcus :)

Prasad Guduri 13-Nov-12 23:25pm

Thank you Rob...This is what i'm looking for....!!!

Rob Branaghan 14-Nov-12 6:26am

Your welcome :)