Description of to_timestamp.gif follows
Description of the illustration to_timestamp.gif


TO_TIMESTAMP converts char of CHAR, VARCHAR2, NCHAR, or NVARCHAR2 datatype to a value of TIMESTAMP datatype.

The optional fmt specifies the format of char. If you omit fmt, then char must be in the default format of the TIMESTAMP datatype, which is determined by the NLS_TIMESTAMP_FORMAT initialization parameter. The optional 'nlsparam' argument has the same purpose in this function as in the TO_CHAR function for date conversion.

This function does not support CLOB data directly. However, CLOBs can be passed in as arguments through implicit data conversion.

See Also:

"Datatype Comparison Rules" for more information.


The following example converts a character string to a timestamp. The character string is not in the default TIMESTAMP format, so the format mask must be specified:

SELECT TO_TIMESTAMP ('10-Sep-02 14:10:10.123000', 'DD-Mon-RR HH24:MI:SS.FF')

10-SEP-02 PM

See Also:

NLS_TIMESTAMP_FORMAT parameter for information on the default TIMESTAMP format and "Datetime Format Models" for information on specifying the format mask