15.10 - INTERVAL DAY 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 DAY 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 the number of days. 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 DAY 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 DAY

For details on the INTERVAL DAY type, see “INTERVAL DAY Data Type” on page 157.

This example adds an interval of -30 days to the current system date. (For this example, assume the current system date is 1999-11-03).

   SELECT INTERVAL -'30' DAY + CURRENT_DATE;
 
     (-30+Date)
   ------------
     1999/10/04