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CONCATENATE fields in JOIN


CONCATENATE fields in JOIN

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2Tall
2Tall
Say Hey Kid
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I need to concatenate 2 fields in table A in order to join to field in table b.

Table A:
Year int (displays as 2009, 2010 etc...)
Period int (1.....12)

Concatenate to = 200901

Table B
YearPeriod int (displays as ,200901,201001etc..)

JOIN
INNER JOIN table a ON tableB.YearPeriod = tableA.ConcatenatedField

Kind Regards,
Phil.

-------------------------------------------------------------------------------------
A neutron walks into a bar. "I'd like a beer" he says. The bartender promptly serves up a beer. "How much will that be?" asks the neutron. "For you?" replies the bartender, "no charge."

Two hydrogen atoms walk into a bar. One says, 'I think I've lost an electron.' The other says 'Are you sure?' The first says, 'Yes, I'm positive... '

Tommy Cooper

LutzM
LutzM
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Why concatenate?

Since both are int, I'd use
SELECT Year * 100 + Period From TableA.



Lutz
A pessimist is an optimist with experience.

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2Tall
2Tall
Say Hey Kid
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Thanks for taking time to reply.

A friend has just come up with the answer as follows:


INNER JOIN (SELECT AccountingYear * 100 + AccountingPeriod AS YRPR,AccountingYear,AccountingPeriod,PeriodClosed,ROW_NUMBER() OVER(PARTITION BY AccountingYear * 100 + AccountingPeriod ORDER BY AccountingDate) AS RowNo FROM accountingCalendar) AS DTBL ON gli.GLYearPeriod = DTBL.YRPR AND DTBL.RowNo = 1



Many Thanks,
Phil.

-------------------------------------------------------------------------------------
A neutron walks into a bar. "I'd like a beer" he says. The bartender promptly serves up a beer. "How much will that be?" asks the neutron. "For you?" replies the bartender, "no charge."

Two hydrogen atoms walk into a bar. One says, 'I think I've lost an electron.' The other says 'Are you sure?' The first says, 'Yes, I'm positive... '

Tommy Cooper

LutzM
LutzM
SSCertifiable
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Group: General Forum Members
Points: 7001 Visits: 13559
Well, then your friend must have had a lot more information available than we did...
How else could he come up with Row_Number when there was nothing in your post indicating that you have duplicates and only need to get the first match?

Please don't compare apples and oranges...

Btw: this is a very nice example of how much an answer would vary based on the information provided...



Lutz
A pessimist is an optimist with experience.

How to get fast answers to your question
How to post performance related questions
Links for Tally Table , Cross Tabs and Dynamic Cross Tabs , Delimited Split Function
2Tall
2Tall
Say Hey Kid
Say Hey Kid (702 reputation)Say Hey Kid (702 reputation)Say Hey Kid (702 reputation)Say Hey Kid (702 reputation)Say Hey Kid (702 reputation)Say Hey Kid (702 reputation)Say Hey Kid (702 reputation)Say Hey Kid (702 reputation)

Group: General Forum Members
Points: 702 Visits: 1203
Point taken, legs duly slapped Smile
Phil.

-------------------------------------------------------------------------------------
A neutron walks into a bar. "I'd like a beer" he says. The bartender promptly serves up a beer. "How much will that be?" asks the neutron. "For you?" replies the bartender, "no charge."

Two hydrogen atoms walk into a bar. One says, 'I think I've lost an electron.' The other says 'Are you sure?' The first says, 'Yes, I'm positive... '

Tommy Cooper

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