Databases :: Oracle :: oracle update datetime field format |
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By: Nono  |
Date: 07/10/2005 10:51:05  |
Points: 20 | Status: Answered Quality : Excellent |
| how to update the datetime format of a field in an Oracle table ? | |||
| By: VGR | Date: 07/10/2005 10:54:58 | |
Type : Answer |
| In fact, you don't have to ;-) Oracle knows only one format for datetimes, namely DATE (non-standard compliant) format, which hols in fact an SQL-92 DATETIME (+microseconds if I'm not mistaken) It added DATETIME in subsequent versions (9?) but I'm not sure it's not simply an alias of the same datatype ;-))) The recommended way of handling different date formats in Oracle is in the SELECTs... By using TO_CHAR() and TO_DATE() respectively... like when selecting FROM the Oracle table : select TO_CHAR(the_date_field,'YYYY-MM-DD HH24:MI:SS') from thetable; or when updating the same table : update thetable set thefield=TO_DATE('2005-05-27 00:00:01','YYYY-MM-DD HH24:MI:SS'); Regards |
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