SQL Command/SQL Expression Fields

CR XI R2
Hi All,
Here's the situation.
There is an SQL table of lookup codes. The columns in the table are "FIELD", "VALUE", and "DESCR".
The data looks like
CRA_TYPE      RV     Receiving
CRA_TYPE      AJ      Adjustment
CUST_TYPE    MD     Medical
CUST_TYPE    RT      Retail
The main datatables contain a "VALUE" in a particluar "FIELD" and I need to be able to retrieve the appropriate "DESCR" to output on the report.
There is a stored procedure that takes 'FIELD" and "VALUE" and selects "DESCR" but I can't figure out how to set it up as a formula field and pass parameters to it for each line.
It is basically
SELECT DESCR FROM tbLookUp WERE [FIELD]=@FIELD AND [VALUE]=@VALUE
The "FIELD" parameter would be static (in this case "CRA_TYPE") and the "VALUE" parameter would be the value of the CRA_TYPE field in each datarow.
I can't just use the "VALUE" since more than one field might have the same "VALUE" but a different "DESC". Only the combination of "FIELD" and "VALUE" is unique.
I've been playing with SQL Commands and SQL Expression Fields with no success. There aren't a lot of samples to look at especially the SQL Expression Fields.
I could create a new stored procedure that would just send in the translation but I don't want to create a stored procedure for every report and almost all the reports will need a similiar transaction scenario.
Any help would be greatly appreciated.
Thanks in advance.
Larry

Yes, I am pretty familiar with Crystal, at least in the routine stuff and pretty good in VB and SQL.
In normal SQL I would retrieve it with a join to the LookupTable.
like: JOIN tbLookUp ON tbLookUp.FIELD = 'CRA_TYPE' AND ( tbLookUp.[value] = tbCRA.CRA_TYPE)
and then just add to the SELECT statement: tbLookUp.DESCR
However, I can't find anyway to use the Database Expert to add the FIELD='CRA_TYPE" to the linking process
I was hoping the "SQL Expression Fields" might hold the answer but the documentation and examples on their use is pretty slim.
I was hoping for a way to run something like: SELECT DESCR FROM tbLookUp WHERE FIELD = 'CRA_TYPE' AND [value] = {tbCR_AUDIT.CRA_TYPE} which would evaluatefor each record like a Formula Field which I could then just insert into the report.
Everything I've tried in the formula editor for an SQL Expression is no good, but run just fine in the SQL Server Management Studio.
I could just skip the "Database Expert" completly and write an SQL Expression as a "SQL Command" that would retrieve it but I'm trying to use the "Database Expert" for ease of maintenance by other people later on and keep as much as I can in CR.
Maybe I'm asking CR for too much.
Thanks

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Commands are intended to replace the standard linked tables that must users are accustomed to.
I suppose Commands would be considered an "advanced" feature, considering that they require the developer to be able to hand write SQL (our at least copy it from another SQL editor).
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Edited by: nylethx1 ye on Jul 23, 2008 9:48 AM

Select count(*) from Table
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The following information helps you
Symptom
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You first need to logon to https://www.sdn.sap.com
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Al,
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Post Author: yyu
CA Forum: Data Connectivity and SQL
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CA Forum: Data Connectivity and SQL
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Post Author: synapsevampire
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