Validating date during insert operation in pl sql with examples

Posted by / 12-Oct-2019 11:38

When you convert to date and time data types, SQL Server rejects all values it cannot recognize as dates or times.For information about using the CAST and CONVERT functions with date and time data, see CAST and CONVERT (Transact-SQL) This section describes what occurs when a datetimeoffset data type is converted to other date and time data types.The following code shows the results of converting a DECLARE @datetimeoffset datetimeoffset(4) = '1912-10-25 .1277 10:0'; DECLARE @datetime2 datetime2(3)[email protected]; SELECT @datetimeoffset AS '@datetimeoffset', @datetime2 AS '@datetime2'; --Result @datetimeoffset @datetime2 ---------------------------------- ---------------------- 1912-10-25 .1277 1912-10-25 .12 --(1 row(s) affected) Conversions from string literals to date and time types are permitted if all parts of the strings are in valid formats. Implicit conversions or explicit conversions that do not specify a style, from date and time types to string literals will be in the default format of the current session.The following table shows the rules for converting a string literal to the datetimeoffset data type.

The time zone offset will be preserved in the database for retrieval.The following code shows the results of converting a DECLARE @datetimeoffset datetimeoffset(3) = '1912-10-25 10:0'; DECLARE @smalldatetime smalldatetime = @datetimeoffset; SELECT @datetimeoffset AS '@datetimeoffset', @smalldatetime AS '@smalldatetime'; --Result [email protected] @smalldatetime -------------------------------- ----------------------- --1912-10-25 .000 1912-10-25 -- --(1 row(s) affected) If the conversion is to datetime2(n), the date and time are copied to the datetime2 value, and the time zone is truncated.When the precision of the datetime2(n) value is greater than the precision of the datetimeoffset(n) value, the fractional seconds are truncated to fit.The detection of any invalid UTC or local (to the persistent or converted time zone offset) datetime value will raise an invalid value error.For example, 9999-12-31 is valid in UTC, but overflow in local time to the time zone offset .

validating date during insert operation in pl sql with examples-41validating date during insert operation in pl sql with examples-55validating date during insert operation in pl sql with examples-33

To convert a date to a corresponding datetimeoffset value in a target time zone, see AT TIME ZONE (Transact-SQL).

One thought on “validating date during insert operation in pl sql with examples”