single line query for selecting data from two tables

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SQL-Server-2008

Hello everyone,

I have two tables t1 and t2

table t1--

id     name
1       a
2       b
3       c
4       d
5       e

table t2 --

id     name
2       c
3       r
5       z

i want output using a single line query as :

id    name
1      a
2      c
3      r
4      d
5      z

that is when the id column matches in table t1 and t2 then it should select name from table t2 else from table t1

i have done this using temporary tables..but i want it in a single line query

please help me out..

thanks & regards
krunal panchal

Posted 6-Feb-13 21:10pm

krunalpanchalN

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Aarti Meswania · Accepted Answer · 2013-02-06T21:13:00

Solution 1

this way...

SQL

select t1.id,case when t2.name is null then t1.name else t2.name end as name
from t1
left join t2 on t1.id=t2.id

Happy Coding!
:)

Posted 6-Feb-13 21:13pm

Aarti Meswania

Comments

Ankur^\m/ 7-Feb-13 3:20am

Good that I refreshed before posting. This is exactly the same query I have written. And I think it should do the job. 5!

Aarti Meswania 7-Feb-13 3:21am

thank you! :)

krunalpanchalN 7-Feb-13 3:22am

thanks a lot :)

Aarti Meswania 7-Feb-13 3:24am

welcome! :)
Glad to help you! :)