15.10 - INTERVAL SECOND 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 SECOND 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 seconds, optionally followed by a decimal point and 1 to 6 digits representing fractional seconds. The decimal point is required if the fractional seconds are included. Spaces and new line characters are not allowed between the apostrophes.

Note: For the digits representing the number of seconds, only digits are parsed and converted to numeric. For example, '1.05' is treated as '105'.

INTERVAL SECOND 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 SECOND

For details on the INTERVAL SECOND type, see “INTERVAL SECOND Data Type” on page 178.

This example adds an interval of 0.000001 seconds to the current system time.

   SELECT INTERVAL '0.000001' SECOND + CURRENT_TIME;
 
   ( 0.0+Current Time)
   -------------------
        15:21:23+00.00

In the following query, the first decimal point is ignored and the result is an interval of 10.000001 seconds.

   SELECT INTERVAL '1.0.000001' SECOND;