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dev:sql:functions:extract [2010/07/27 15:40] els |
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| ===== Syntax ===== | ===== Syntax ===== | ||
| - | EXTRACT(date_tokens FROM date_column) | + | EXTRACT(date_tokens FROM date_expression) |
| == date_tokens == | == date_tokens == | ||
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| - | == date_column == | + | == date_expression == |
| - | Required. A column that is declared as a date_class datatype. The date_class datatypes are any of the date or time oriented datatypes found in the list of [[dev:appendix:reference:datatypes|Omnidex datatypes]]. | + | Required. Any expression that returns a date-class datatype. Examples of date expressions are columns or functions that return a date-class datatype. The date_class datatypes are any of the date or time oriented datatypes found in the list of [[dev:appendix:reference:datatypes|Omnidex datatypes]]. |
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| 2004-09-14 9 | 2004-09-14 9 | ||
| </code> | </code> | ||
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| ==== Example 2: EXTRACT with format string ==== | ==== Example 2: EXTRACT with format string ==== | ||
| <code> | <code> | ||
| - | > select birthdate, extract ('MMM D, YYYY' from birthdate) bday from individuals | + | > select birthdate, extract ('MMM D, YYYY' from birthdate) bday from individuals; |
| - | ; | + | |
| BIRTHDATE BDAY | BIRTHDATE BDAY | ||
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| See also: | See also: | ||
| - | {{page>dev:sql:functions:see_also_date&noheader&nofooter&noeditbtn}} | + | {{page>dev:sql:functions:see_also_dates&noheader&nofooter&noeditbtn}} |
| {{page>:bottom_add&nofooter&noeditbtn}} | {{page>:bottom_add&nofooter&noeditbtn}} | ||
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