[jira] Commented: (DERBY-234) Documentation of DateTime types is incomplete

["Dag H. Wanvik (JIRA)" <ji...@apache.org>]

    [ http://issues.apache.org/jira/browse/DERBY-234?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12461774 ] 

Dag H. Wanvik commented on DERBY-234:
-------------------------------------

In addition to the formats noted above, Derby also accepts
a plain 14-char length string literal for timestamp:

ij> values (TIMESTAMP('20070102183500'));
1                         
--------------------------
2007-01-02 18:35:00.0     

1 row selected

(See code in SQLTimestamp#computeTimestampFunction). 
Should this be documented, too?


> Documentation of DateTime types is incomplete
> ---------------------------------------------
>
>                 Key: DERBY-234
>                 URL: http://issues.apache.org/jira/browse/DERBY-234
>             Project: Derby
>          Issue Type: Bug
>          Components: Documentation
>    Affects Versions: 10.0.2.0
>            Reporter: Jack Klebanoff
>         Assigned To: Bryan Pendleton
>            Priority: Minor
>         Attachments: derby234.diff, mmss_required.diff, rrefsqlj27620.html
>
>
> The documentation for datatypes DATE, TIME, and TIMESTAMP is incomplete. The documentation says that DATE, TIME, and TIMESTAMP accept any values accepted by the java.sql.Date, java.sql.Time, and java.sql.Timestamp classes respectively. Derby accepts a number of string formats:
> DATE:
>   yyyy-mm-dd
>   mm/dd/yyyy
>   dd.mm.yyyy
> TIME:
>   hh:mm[:ss]
>   hh.mm[.ss]
>   hh[:mm] {AM | PM}
> TIMESTAMP:
>   yyyy-mm-dd-hh[.mm[.ss[.nnnnnn]]]
>   yyyy-mm-dd hh[:mm[:ss[.nnnnnn]]]
> The year must always have 4 digits. Months, days, and hours may have one or two digits. Minutes and seconds, if present, must have two digits. Nanoseconds, if present may have 1 to 6 digits.
> Derby also accepts strings in the locale specific datetime format, using the locale of the database server. If there is an ambiguity the built in formats above take precedence.

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