15.10 - INTERVAL YEAR Literals - Teradata Database

Teradata Database SQL Data Types and Literals

prodname
Teradata Database
vrm_release
15.10
category
Programming Reference
featnum
B035-1143-151K

Declares an INTERVAL YEAR value in an expression.

where:

 

Syntax element …

Specifies …

sign

an optional minus sign to indicate a negative interval. The default is a positive interval.

Note that the sign must be outside the apostrophes that enclose string.

string

one to four digits representing years. Spaces and new line characters are not allowed between the apostrophes.

Note: Only digits within the apostrophes are parsed and converted to numeric. For example, '1.05' is treated as '105'.

INTERVAL YEAR literals are partly ANSI SQL:2011 compliant.

The ANSI definition places the optional sign for the interval within the apostrophes; the Teradata implementation places the optional sign outside the apostrophes.

INTERVAL YEAR

For details on the INTERVAL YEAR type, see “INTERVAL YEAR Data Type” on page 151.

This example adds an interval of -2 years to the current system date. (For this example, assume the current system date is 11-03-1999.)

   SELECT INTERVAL -'2' YEAR + CURRENT_DATE;
   
     (-2+Date)
   -----------
   1997/11/03