| Role of database timezone? [message #28279] |
Sun, 14 December 2003 19:10  |
Richard Mayanja
Messages: 1
Registered: December 2003
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Junior Member |
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I don't understand the role of the database timezone. what are the implications of making changes on database timezone? On what basis should I determine and set my database timezone?
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| Re: Role of database timezone? [message #28286 is a reply to message #28279] |
Sun, 14 December 2003 21:40  |
Frank Naude
Messages: 4587
Registered: April 1998
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Senior Member |
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Hi,
A database doesn't have a time zone setting (except for formatting parameters - see NLS_DATABASE_PARAMETERS).
The database's time zone is obtained from the operating system. Look at this example:
SQL> SELECT DBTIMEZONE FROM DUAL;
DBTIMEZ
-------
+00:00
Best regards.
Frank
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| Re: Role of database timezone? [message #28302 is a reply to message #28279] |
Mon, 15 December 2003 05:41 |
Thiru
Messages: 1089
Registered: May 2002
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Senior Member |
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Richard,
Database's timezone ( I havent used this, so just from the documentation) , is applicable to columns defined TIMESTAMP WITH LOCAL TIME ZONE and is either defined at the database creation time or altered later(ALTER DATABASE SET TIME_ZONE) or defaulted to the OS time zone.
Normally,its the same as the OS time zone.
eg)
SQL> select dbtimezone from dual;
DBTIME
------
-05:00
SQL> !grep TZ /etc/default/init
# TZ, LANG, CMASK, or any of the LC_* environment variables.
TZ=US/Eastern
-Thiru
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