Solved

Need results with a NULL field.

Posted on 2008-10-10
3
176 Views
Last Modified: 2008-11-15
I have a report that shows me labs my company has run for a specific time period. The labs are usually run for a surgeon but not always and thus the surgeon (tbldoctors.lastname) field is sometimes NULL. I need to get the results for a specific time period regardless of the fact that this field might be null so that we can see all labs performed. I am attaching the SQL statement created by Crystal below as a CODE SNIPPET

My results are as follows for 6/1/08 - 10/10/08
-1- If I remove the tbldoctors.lastname field, I get 20 labs for the time frame
-2- If I leave the tbldoctors.lastname field, I get 13 labs for the same time period

I tried the following formula field to try to get the NULL fields to return "n/a" but I get the same 13 results:

if isnull ({tblDoctors.LastName}) then "n/a" else
{tblDoctors.LastName}

Any help would be GREATLY APPRECIATED.
SELECT "tblCadaverLabs"."LabID", "tblLabLocations"."LocationName", "tblCadaverLabs"."LabDate", "tblMISUsers"."Name", "tblCadaverLabs"."LabStatus", "tblDoctors"."LastName"
 FROM   (((("ATR0605_003LIVE"."dbo"."tblCadaverLabs" "tblCadaverLabs" INNER JOIN "ATR0605_003LIVE"."dbo"."tblLabLocations" "tblLabLocations" ON "tblCadaverLabs"."LocationID"="tblLabLocations"."LocationID") INNER JOIN "ATR0605_003LIVE"."dbo"."tblLabSupport" "tblLabSupport" ON "tblCadaverLabs"."LabID"="tblLabSupport"."LabID") INNER JOIN "ATR0605_003LIVE"."dbo"."tblLabDoctors" "tblLabDoctors" ON "tblCadaverLabs"."LabID"="tblLabDoctors"."LabID") INNER JOIN "ATR0605_003LIVE"."dbo"."tblDoctors" "tblDoctors" ON "tblLabDoctors"."DoctorID"="tblDoctors"."DoctorID") INNER JOIN "ATR0605_003LIVE"."dbo"."tblMISUsers" "tblMISUsers" ON "tblLabSupport"."UserID"="tblMISUsers"."UserID"
 WHERE  ("tblCadaverLabs"."LabDate">={ts '2008-06-01 00:00:00'} AND "tblCadaverLabs"."LabDate"<{ts '2008-10-11 00:00:00'}) AND "tblCadaverLabs"."LabStatus"='original'
 ORDER BY "tblCadaverLabs"."LabDate"

Open in new window

0
Comment
Question by:dsabine
3 Comments
 
LVL 100

Accepted Solution

by:
mlmcc earned 500 total points
ID: 22693977
Try using a LEFT OUTER JOIN rather than inner joins.

A left outer join gets all the records in the left table tblCadaverLabs and all matching records and nulls from the other table.

mlmcc
0

Featured Post

Netscaler Common Configuration How To guides

If you use NetScaler you will want to see these guides. The NetScaler How To Guides show administrators how to get NetScaler up and configured by providing instructions for common scenarios and some not so common ones.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Crystal Reports: 5 Tests for Top Performance It is complete, your masterpiece report.  Not only does it meet your customer’s expectations, it blows them out the water, all they want is beautifully summarised and displayed in a myriad of ways. …
There have always been a lot of questions related to when Crystal Reports evaluates report components (such as formulas, summaries, cross-tabs, charts, to name a few examples). Crystal Reports uses a two-pass reporting process to provide greater …
This tutorial gives a high-level tour of the interface of Marketo (a marketing automation tool to help businesses track and engage prospective customers and drive them to purchase). You will see the main areas including Marketing Activities, Design …
Finds all prime numbers in a range requested and places them in a public primes() array. I've demostrated a template size of 30 (2 * 3 * 5) but larger templates can be built such 210  (2 * 3 * 5 * 7) or 2310  (2 * 3 * 5 * 7 * 11). The larger templa…

809 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question