dateadd function in Oracle

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August 9th, 2004, 06:38 AM

gintom

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dateadd function in Oracle

I am having some trouble with the dateadd function.

I am using Oracle 8 and Sql Server databases and in my SQL statements for SQL Server I have the dateadd function to add hours and days to the date and that works perfect.

But I also need the same function to be used in Oracle. I know that dateadd is not a function in Oracle 8 so how do I get around this. I have tried the following that I have read from other sources but this doent seem to work.

Code:


FieldName1 <= to_date('20040809 19:00:00','YYYYMMDD HH24:MI:SS') 'FieldName2 /1440'

Any help would be greatfully appreciated

August 9th, 2004, 10:49 AM

victorpendleton

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See if this link is useful
http://philip.greenspun.com/sql/dates.html

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August 9th, 2004, 11:54 AM

gintom

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thanks victor that has cleared somethings up about the oracle dates but still hasnt help me solve my problem

this is actually the problem code that I am having it doesnt seem to add the 15 minutes to the time.

Code:


SELECT Field1 FROM Table1 WHERE Field2 >= to_date('20040809 18:00:00','YYYYMMDD HH24:MI:SS') + '15/1440'

August 9th, 2004, 12:12 PM

KK2796

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Quote:

Originally Posted by gintom

Code:


SELECT Field1 FROM Table1 WHERE Field2 >= to_date('20040809 18:00:00','YYYYMMDD HH24:MI:SS') + '15/1440'

This worked when I took the ticks off of the '15/1440', which Oracle will not recognize as a valid number.

Code:

SELECT 
    TO_DATE('20040809 18:00:00','YYYYMMDD HH24:MI:SS') ORIGINAL, 
    TO_DATE('20040809 18:00:00','YYYYMMDD HH24:MI:SS') + 15/1440 MODIFIED 
FROM DUAL

This would change your code to

Code:

SELECT Field1 FROM Table1 
WHERE Field2 >= TO_DATE('20040809 18:00:00','YYYYMMDD HH24:MI:SS') + 15/1440

August 10th, 2004, 04:10 AM

gintom

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cheers mate that works perfect!

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