Difference between revisions of "SQL Date operators"
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==Purpose== | ==Purpose== | ||
Date operators | Date operators | ||
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==Syntax== | ==Syntax== | ||
<expression1> operator <expression2>[ operator <expression3>…] | <expression1> operator <expression2>[ operator <expression3>…] | ||
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==See Also== | ==See Also== | ||
[[SQL INSERT|INSERT]], [[SQL OPERATORS]], [[SQL SELECT|SELECT]], [[SQL UPDATE|UPDATE]] | [[SQL INSERT|INSERT]], [[SQL OPERATORS]], [[SQL SELECT|SELECT]], [[SQL UPDATE|UPDATE]] | ||
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==Description== | ==Description== | ||
Operators used with Date expressions and Date/Numeric expressions: | Operators used with Date expressions and Date/Numeric expressions: | ||
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!Operator||Expression1||Expression2||Operation | !Operator||Expression1||Expression2||Operation | ||
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| − | |<nowiki>+</nowiki>||Date||Numeric||Adds the <expression2> number of days to the date and returns a date | + | |valign="top"|<nowiki>+</nowiki>||valign="top"|Date||valign="top"|Numeric||Adds the <expression2> number of days to the date and returns a date |
|- | |- | ||
| − | |<nowiki>-</nowiki>||Date||Numeric||Subtracts the <expression2> number of days from the date and returns a date | + | |valign="top"|<nowiki>-</nowiki>||valign="top"|Date||valign="top"|Numeric||Subtracts the <expression2> number of days from the date and returns a date |
|- | |- | ||
| − | |<nowiki>-</nowiki>||Date||Date||Returns a numeric signifying the number of days between the two dates. If <expression2> is later, a negative number is returned | + | |valign="top"|<nowiki>-</nowiki>||valign="top"|Date||valign="top"|Date||Returns a numeric signifying the number of days between the two dates. If <expression2> is later, a negative number is returned |
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|} | |} | ||
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==Example== | ==Example== | ||
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[[Category:Documentation]] | [[Category:Documentation]] | ||
[[Category:SQL|Operators,Date]] | [[Category:SQL|Operators,Date]] | ||
Latest revision as of 11:34, 30 January 2013
Contents
Purpose
Date operators
Syntax
<expression1> operator <expression2>[ operator <expression3>…]
See Also
INSERT, SQL OPERATORS, SELECT, UPDATE
Description
Operators used with Date expressions and Date/Numeric expressions:
| Operator | Expression1 | Expression2 | Operation |
|---|---|---|---|
| + | Date | Numeric | Adds the <expression2> number of days to the date and returns a date |
| - | Date | Numeric | Subtracts the <expression2> number of days from the date and returns a date |
| - | Date | Date | Returns a numeric signifying the number of days between the two dates. If <expression2> is later, a negative number is returned |
Example
SELECT account_no, ord_date – rec_date as "Delivery Delay"; FROM accounts; ORDER BY account_no
