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If statement or Logic

Posted By:      Posted Date: September 26, 2010    Points: 0   Category :Sql Server

I have a advanced sql query that I have to do, at least it's advanced for me, I have to put some logic/checks into this statement.  I'm unsure exactly where to place this, I think a stored procedure is the only place where you can do/have logic.

I trying to do a query based of these tables:

SQL Tables
ID	     PK, smallint, not null
Unit_Code	     smallint, not null
StartTS	     smalldatetime, not null
StopTS	     smalldatetime, null
Operation_Type	varchar(4) , not null

ID	     PK, smallint, not null
Unit_Code	     Smallint, not null
Unit_Name	     Varchar(50)

ID	     PK, smallint, not null
Unit_Code	     Smallint, not null
EventStartTS	smalldatetime, not null
EventEndTS	smalldatetime, null
Event_Type	char(2), , not null
Avail_Cap	     decimal(6,2), null

Possible SQL Script
Select Unit_Name, ‘Availability’ =
If CE_BCELP.EventStartTS >CP_BCELP.StopTS Where CE_BCELP.Event_Type = ‘IR’ or CE_BCELP.Event_Type = ‘MB’ or CE_BCELP.Event_Type = ‘RU’ then ‘Availability ‘= Unavailable

If CE_BCELP.EventStartTS >CP_BCELP.StopTS Where 

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