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Using CASE in JOIN expression
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Forum:
Microsoft SQL Server
Category:
SQL syntax
Title:
Using CASE in JOIN expression
Environment versions
SQL Server:
SQL Server 2005
Miscellaneous
Thread ID:
01411536
Message ID:
01411536
Views:
88
Hi,

I am building a SQL Command expression (to be used from VFP 9 application) where the JOIN is an expression.

When I use the expression with IIF() for VFP data it works. Here is my VFP expression
cJoinExpr = "JOIN TABLE1 ON IIF(TABLE2.ORDER_NO>0,TABLE2.ID_FLD = 
 TABLE1.ID_FLD, TABLE3.ID_FLD = TABLE1.ID_FLD) "
But when I change the expression to be used against SQL Server I get error. Here is my expression for SQL Server:
cJoinExpr = "JOIN TABLE1 ON CASE WHEN TABLE2.ORDER_NO>0 THEN TABLE2.ID_FLD =
 TABLE1.ID_FLD ELSE TABLE3.ID_FLD = TABLE1.ID_FLD END "
What is wrong with my second (SQL Server) expression?
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