Help with SQL Query, plz

[Charlatat]

I have a complicated query, that I need to make more complicated. The current query is this:

SELECT contact1.contact,contact1.address1,contact1.address2,contact1.city,contact1.state,contact1.zip,conthist.ondate,contact1.key3,conthist.resultcode,conthist.accountno,conthist.userid,conthist.recid FROM conthist INNER JOIN contact1 ON conthist.accountno = contact1.accountno WHERE (conthist.RESULTCODE = 'TNS') AND (contact1.address1 <> '' OR contact1.city <> '' OR contact1.state <> '' OR contact1.zip <> '') AND (ondate = '%targetdate%') AND (contact1.accountno NOT IN (SELECT conthist.accountno FROM conthist WHERE (conthist.resultcode IN ('SLE','SLD','SL1','SL2') AND (conthist.ondate BETWEEN '%targetdate%' AND '%now%'))))"

%targetdate% = '1/1/2007'%now% = automatically generatedNeed to incorporate a third table into this mix (CAL), where cal.rectype = 'A' AND cal.ondate > '%now%'Everytime I try adding the third table, I get fatal errors (even when I don't query it at all). Was wondering if someone could offer a suggestion? Thanks

[Charlatat]

anyone?

[aspnetguy]

best thing to do is post the code that is giving to the fatal errors. It is hard to give an answer without the structure of all 3 tables.

[xpriens]

Well, on wht grounds u wanna add this new table to the original query ----- wht's ur join condition........and also report the fatal error to get more insight into this.....

[Charlatat]

Well, it'll fail when I do this:

SELECT contact1.contact,contact1.address1,contact1.address2,contact1.city,contact1.state,contact1.zip,conthist.ondate,contact1.key3,conthist.resultcode,conthist.accountno,conthist.userid,conthist.recid FROM contact1,conthist,calWHERE (contact1.accountno = conthist.accountno AND contact1.accountno = cal.accountno)

it will pretty much fail when the FROM statement has more than 2 tables in it. Thought there was a standard way of joining/querying 3+ tables within a single statement, thus the plea for help.

[jesh]

You can do multiple INNER JOINS:

SELECT a.field1, a.field2, b.field2, c.field2, c.field3FROM TableA a    INNER JOIN TableB b ON a.field1 = b.field1 INNER JOIN TableC c ON a.field1 = c.field1WHERE b.field4 = 'foo'

[Charlatat]

I think that may be exactly what I was looking for. I'll try it and let you know. Thanks!

[Charlatat]

SELECT contact1.contact,contact1.address1,contact1.address2,contact1.city,contact1.state,contact1.zip,conthist.ondate,contact1.key3,conthist.resultcode,conthist.accountno,conthist.userid,conthist.recidFROM contact1 INNER JOIN conthist ON contact1.accountno = conthist.accountno INNER JOIN Cal ON contact1.accountno = Cal.accountnoWHERE (conthist.RESULTCODE = 'TNS') AND (contact1.address1 <> '' OR contact1.city <> '' OR contact1.state <> '' OR contact1.zip <> '') AND (contact1.accountno NOT IN (SELECT conthist.accountno FROM conthist WHERE (conthist.resultcode IN ('SLE','SLD','SL1','SL2'))))

I get a "Table doesn't exist" error, which is the same as when I tried just "FROM contact1,conthist,cal". I know each table does, in fact, exist. Also, these are dbf files. Just in case that makes a difference

[packrat]

Can you select rows from each of the tables individually or is there possibly a naming issue?dBase Sql isn't my primary sql, but it doesn't seem that you should be getting an error based on the syntax.Here's an alternative showing how you can move the filter conditions on conthist into a sub query and simplify the outer where clause.I'm not sure that i've got your logic correct, might require some tweaking.Mostly I'm wondering about the error, let us know if you're able to select from each of the tables individually.

SELECT contact1.contact, contact1.address1, contact1.address2, contact1.city, contact1.state, contact1.zip	, conthist.ondate, contact1.key3, conthist.resultcode, conthist.accountno, conthist.userid, conthist.recidFROM contact1 INNER JOIN ( SELECT ondate, resultcode, accountno, userid, recid FROM conthist WHERE resultcode NOT IN ('SLE','SLD','SL1','SL2') AND resultcode = 'TNS' AND ondate > GetDate()	) AS conthist ON contact1.accountno = conthist.accountno	INNER JOIN Cal ON contact1.accountno = Cal.accountno AND cal.rectype = 'A' WHERE contact1.address1 <> '' OR contact1.city <> '' OR contact1.state <> '' OR contact1.zip <> ''