Create view with exploding rows into multiple

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Create view with exploding rows into multiple

NERO

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Points: 330
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April 28, 2014 at 1:55 pm

#288271

I have a table like below:
ItemIdAmountTax1Tax2SrvType
111 100 10 20 1
112 200 10 2
113 300 10 30 3
Now I want to create View that will have an exploded resultset based on SrvType.
For SrvType 1 and 2 there will be 2 lines per Itemid - One for 'Amount' anod another for 'Tax1+Tax2'. But for SrvType 3 there will be 3 lines per 'ItemId' - one for 'Amount', one for Tax1 and another for 'Tax2'.
I have a few hundred source records like this. Now sure how to achieve the exploded resultset with a View.
Any thoughts?

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a4apple SSCrazy Points: 2620 More actions · Answer 1

can you show us some sample output...

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Luis Cazares SSC Guru Points: 183706 More actions · Answer 2

How do you define that you need 2 or 3 lines?

Luis C.
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Sean Lange SSC Guru Points: 286590 More actions · Answer 3

Hi and welcome to the forums. In order to help we will need a few things:

1. Sample DDL in the form of CREATE TABLE statements

2. Sample data in the form of INSERT INTO statements

3. Expected results based on the sample data

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David Burrows SSC Guru Points: 65142 More actions · Answer 4

SELECT t.ItemId,l.line,

CASE WHEN l.Line = 1 THEN t.Amount

WHEN t.SrvType IN (1,2) AND l.Line = 2 THEN t.Tax1+t.Tax2

WHEN t.SrvType = 3 AND l.Line = 2 THEN t.Tax1

WHEN t.SrvType = 3 AND l.Line = 3 THEN t.Tax2

END AS [Value]

FROM

t

JOIN (VALUES (1,1),(1,2),(2,1),(2,2),(3,1),(3,2),(3,3)) l (SrvType,Line) ON l.SrvType = t.SrvType

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