How to update multiple value in single sql statement

Question

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ID   NAME              SAL    DEP   LOC
----  ------ ---------- ---------- ----- -----
  1   viki              1000   it    cb
  2   allen             2000   ac    ch
  3   smith             2000   ac    sa
  4   adam              5000   it    ch
  5   will              4000   ac    cb
  6   john              6000   it    cb
  7   bradley          10000   it    ch

i have table like this if dep = 'it' update 1000 if dep='ac' update 2000

I tried this query but it fails

SQL

update emp set sal=sal+(select case when dep='it' then '1000'
                                    when dep='ac' then '2000'
                                    else '0'
                                    end
                                    from emp);

Posted 7-Mar-14 7:14am

j viky

Updated 7-Mar-14 7:20am

Maciej Los

v2

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3 solutions

Solution 1

Try something like this:

SQL

UPDATE t1 SET t1.sal = t2.sal
FROM emp AS t1 INNER JOIN (
    SELECT id, CASE WHEN dep='it' THEN sal+1000
                   WHEN dep='ac' THEN sal+2000
                   ELSE sal
               END AS sal
    FROM emp
    ) AS t2 ON t1.id = t2.id

Posted 7-Mar-14 7:26am

Maciej Los

v2

Comments

j viky 7-Mar-14 13:32pm

with out using case is there any option sir,
please guide me if it is possible

Maciej Los 7-Mar-14 13:34pm

In a single statement? No!

j viky 7-Mar-14 13:44pm

ok sir thanx spending your valuable time by clearing my doubts

Peter Leow 7-Mar-14 13:47pm

Hi, Maciej, your solution works too, +5!

Maciej Los 7-Mar-14 13:48pm

Thank you, Peter.
BTW: but where is a 5?

Peter Leow 7-Mar-14 13:53pm

I think flight delay, have it arrived?

Maciej Los 7-Mar-14 14:04pm

I can see it now ;)
Thank you, Peter.

Maciej Los 7-Mar-14 14:16pm

Is this your acoount on LinkedIn?

Peter Leow 7-Mar-14 14:27pm

No.

Maciej Los 7-Mar-14 14:53pm

;(

Solution 2

SQL

update emp e1 set e1.sal=e1.sal + (select case when e1.dep='it' then '1000'
                                    when e1.dep='ac' then '2000'
                                    else '0'
                                    end)

Posted 7-Mar-14 7:28am

Abhinav S

Comments

j viky 7-Mar-14 13:37pm

IT says unexpected end of sql command sir

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Peter Leow · Accepted Answer · 2014-03-07T07:30:00

Solution 3

SQL

update emp set sal=sal+
(
  case when dep='it' then 1000
       when dep='ac' then 2000
       else 0
       end
)

Posted 7-Mar-14 7:30am

Peter Leow

Comments

j viky 7-Mar-14 13:39pm

perfectly works thank you so much sir@peter

Maciej Los 7-Mar-14 14:06pm

Simplest solution than my...
+5!