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05.19.2008 at 10:43AM PDT, ID: 23414520
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9.6

Left Join Query with a boolean expression in MS Access

Asked by kpurchase in SQL Query Syntax

Tags: , ,

I have two tables tblTemplateClinicalData and tlkpClinical. I am trying to write a query that will show all data in tlkpClinical where it has an ItemType of SiteOfOrigin. I then want to show a true/false expression row that will be true if it has a corresponding record in tblTemplateClinicalData, i.e. the same tlkpClinicalID in both tables and tblTemplateClinicalData.CoopGroup)="COG", tblTemplateClinicalData.Protocol)="ACN31", tblTemplateClinicalData.Regimen)="Proto"; and a false if it does not meet that criteria. Also if the expression is true then i want to show the ItemOrder from tblTemplateClinicalData otherwise just leave that value blank in the result set. Below is what I have so far, but it doesnt include the expression and currently only lists values that have identical tlkpClinicalID values in both tables.

SELECT tblTemplateClinicalData.ItemOrder, tlkpClinical.ItemValue, tblTemplateClinicalData.CoopGroup, tblTemplateClinicalData.Protocol, tblTemplateClinicalData.Regimen
FROM tlkpClinical LEFT JOIN tblTemplateClinicalData ON tlkpClinical.tlkpClinicalID = tblTemplateClinicalData.tlkpClinicalID
WHERE (((tblTemplateClinicalData.CoopGroup)="COG") AND ((tblTemplateClinicalData.Protocol)="ACN31") AND ((tblTemplateClinicalData.Regimen)="Proto") AND ((tlkpClinical.ItemType)="SiteOfOrigin"));
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About this solution

Zone: SQL Query Syntax
Tags: Microsoft, Access, 2003
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Solution Provided By: DanielWilson
Participating Experts: 1
Solution Grade: A
 
 
 
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