convert from sybase to oracle

Hai !
        Can someone assist me to convert sybase code to oracle

1. datediff(dd, dateadd(dy,-1,getDate()), dateadd(dy,14,ShipDate) ) < 0
2. datediff(dd, getdate(), dateadd(dd,14,ShipDate) )=0
3.datediff(dd,ReceiptDate,ShipDate)
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vishali_vishuAsked:
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sdstuberCommented:
all date math in Oracle is in days


1. ( (shipdate+14) - (sysdate-1) ) < 0
2. ( (shipdate+14) - (sysdate) ) = 0
3. (shipdate - receiptdate)
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mohammadzahidCommented:
Just replace datediff with month_between function in Oracle and getdate with sysdate

dateadd with add_months

goto this site for examples:

http://www.techonthenet.com/oracle/functions/index.php
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sdstuberCommented:
months_between returns date differences in months, but the datediff examples above are in days.

just use standard arithmetic in Oracle
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