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SQL Anywhere 17 » SQL Anywhere Server - Database Administration » Database configuration » Database options » Alphabetical list of database options

date_format option

Sets the format for dates retrieved from the database.

Allowed values

String

Default

YYYY-MM-DD

A temporary setting for the current user is established by the ODBC, JDBC, and OLE DB drivers ('yyyy-mm-dd').

A temporary setting for the current user is established by SAP Open Client and jConnect TDS connections ('YYYY-MM-DD').

Scope
  PUBLIC role For current user For other users
Allowed to set permanently? Yes, with SET ANY PUBLIC OPTION Yes Yes, with SET ANY PUBLIC OPTION
Allowed to set temporarily? Yes, with SET ANY PUBLIC OPTION Yes (current connection only) No
Remarks

The format is a string using the following symbols:

Symbol Description
YY Two-digit year
YYYY Four-digit year
MM Two-digit month
MMM[m...] Character short form for months
D Single digit day of week (1 = Sunday, 7 = Saturday)
DD Two-digit day of month
DDD[d...] Character short form for days of the week
JJJ Day of the year, from 1 to 366

Each symbol is substituted with the appropriate data for the date that is being formatted.

If the character data is multibyte, the length of each symbol reflects the number of characters, not the number of bytes. For example, the 'mmm' symbol specifies a length of three characters for the month.

For symbols that represent character data (such as MMM), you can control the case of the output as follows:

  • Type the symbol in all uppercase to have the format appear in all uppercase. For example, MMM produces JAN.

  • Type the symbol in all lowercase to have the format appear in all lowercase. For example, mmm produces jan.

  • Type the symbol in mixed case to have the database server choose the appropriate case for the language that is being used. For example, in English, typing Mmm produces May, while in French it produces mai.

For symbols that represent numeric data, you can control zero-padding with the case of the symbols:

  • Type the symbol in same-case (such as MM or mm) to allow zero padding. For example, yyyy/mm/dd could produce 2002/01/01.

  • Type the symbol in mixed case (such as Mm) to suppress zero padding. For example, yyyy/Mm/Dd could produce 2002/1/1.

Note If you change the setting for date_format in a way that re-orders the date format, change the date_order option to reflect the same change, and vice versa.

Example

The following table illustrates date_format settings, together with the output from the following statement, executed on Monday, April 14, 2008.

SELECT CAST( CURRENT DATE AS VARCHAR );
date_format CURRENT DATE
yyyy/mm/dd/ddd 2008/04/14/mon
yyyy/Mm/Dd/ddd 2008/4/14/mon
jjj 105
mmm yyyy apr 2008
Mmm yyyy Apr 2008
mm-yyyy 04-2008