TO_TIMESTAMP
Deprecated
Warning
Please use TO_DATE instead.
Description
TO_TIMESTAMP converts a string into a DATE. The format of the input string can be defined.
The following fields are supported to define the input format:
YYYY: 4 digit year
MM: 2 digit month of year
DD: 2 digit day of month
HH: 2 digit hour of day in 24 hour format
mm: 2 digit minutes per hour
SS: 2 digit seconds per minute
All other characters are interpreted as separators. TO_TIMESTAMP doesn't check if the separators actually match. TO_TIMESTAMP just skips the separators characters.
The number of digits per field has to exactly match. For example the 2 digit month field MM has to have exactly two digits and cannot have only one. In case of an mismatch the operator returns NULL and throws a warning.
Unicode support: TO_TIMESTAMP is only guaranteed to work as expected when used on US-ASCII strings. This restriction applies to both the STRING input and the <format> string.
Syntax
TO_TIMESTAMP ( table.column, format )
NULL handling
If the input value is NULL, then the result is NULL as well.
Examples
[1] Example in which a string containing a date is transformed to an actual DATE type. | ||||||||||||
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[2] Example in which a string containing a timestamp is transformed to an actual DATE type. | ||||||||||||||
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[3] This example shows that TO_TIMESTAMP doesn't check the separators. Therefore varying separators can be in the input data. | ||||||||||||
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[4] Separators are not necessary as shown here. | ||||||||||||
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