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NLS_TIMESTAMP_FORMAT(转)

原创 Linux操作系统 作者:tochar 时间:2007-07-27 00:00:00 0 删除 编辑

NLS_TIMESTAMP_FORMAT

Parameter type

String

Syntax

NLS_TIMESTAMP_FORMAT = "format"

Default value

Derived from NLS_TERRITORY

Parameter class

Dynamic: ALTER SESSION

Range of values

Any valid datetime format mask

NLS_TIMESTAMP_FORMAT defines the default timestamp format to use with the TO_CHAR and TO_TIMESTAMP functions.

The value must be surrounded by quotation marks as follows:

NLS_TIMESTAMP_FORMAT = 'YYYY-MM-DD HH:MI:SS.FF'

You can specify the value of NLS_TIMESTAMP_FORMAT by setting it in the initialization parameter file. You can specify its value for a client as a client environment variable.

You can also alter the value of NLS_TIMESTAMP_FORMAT by changing its value in the initialization parameter and then restarting the instance. To alter the value during a session use the ALTER SESSION SET statement.


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