case statement

this case statement does not return the result i'm expecting

the value of wq.quantity_on_hand = 156, im.last_repack_item = 0, im.freight_item = .38010

( Case when im.last_repack_item = 0 
    then
        wq.quantity_on_hand * ( im.last_repack_item + im.freight_item ) 
    else
        0
  END ) repack_cost,

the select returns 59.2956 (156 * .38010) i thought it should return 0

i've worked around it by creating multiple columns, but i'd like to know if it's a bug, or if it's the way it's supposed to work.

thanks Tom M.

case-expression case select

asked 03 May '13, 11:19

Tom Mangano
672●24●27●38
accept rate: 8%

edited 03 May '13, 11:44

Volker Barth
40.2k●361●550●822

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One Answer:

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Why would you expect the expression to return 0?

The expression 'im.last_repack_item = 0' evaluates to TRUE since you tell us that last_repack_item is zero, so the value of the 'then' clause is returned.

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answered 03 May '13, 11:23

Mark Culp
24.9k●10●141●297
accept rate: 41%

edited 03 May '13, 11:25

i've looked at it for 15 mins, checked values, etc. i'm in the office by myself today, so thanks for looking over my shoulder.

(03 May '13, 11:33) Tom Mangano

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question asked: 03 May '13, 11:19

question was seen: 2,331 times

last updated: 03 May '13, 11:44

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case statement

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