C Data Type Definition
typedef struct TimeStamp { DECIMAL4 seconds; SMALLINT year; BYTEINT month; BYTEINT day; BYTEINT hour; BYTEINT minute; } TimeStamp;
Usage
The seconds member is laid out as a DECIMAL(8,6) numeric field, which can represent up to two digits of whole seconds and six digits of fractional seconds.
The range of values defined for the SQL TIMESTAMP type applies to the input arguments and return argument of a function. A value outside the valid range of values produces an error. For details on the TIMESTAMP type, see Teradata Vantage™ - Data Types and Literals, B035-1143.
All TIMESTAMP values passed to a UDF are in Universal Coordinated Time (UTC), and all TIMESTAMP values that are returned from a UDF must be in UTC.
Here is an example using TIMESTAMP in a UDF definition and C function declaration.
SQL Function Definition | Equivalent C Function Declaration |
---|---|
CREATE FUNCTION F1 ( A TIMESTAMP ) RETURNS TIMESTAMP ...; |
void f1( TimeStamp *a, TimeStamp *result, ... ) { ... } |