17.10 - Usage Notes - Advanced SQL Engine - Teradata Database

Teradata Vantage™ - Data Types and Literals

Advanced SQL Engine
Teradata Database
Release Number
Release Date
July 2021
Content Type
Programming Reference
Publication ID
English (United States)

Internal Representation of INTERVAL HOUR TO SECOND

Conceptually, INTERVAL HOUR TO SECOND has the following fields.

Field Name Storage Format Total Length

External Representation of INTERVAL HOUR TO SECOND

INTERVAL HOUR TO SECOND types are imported and exported in record and indicator modes as CHARACTER data using the client character set.

WHEN fractional_seconds_precision is … THEN the type and format are …
0 Type: CHARACTER(precision + 7)
Format: '-h(precision):mm:ss'

where n is 1 - 6

Type: CHARACTER(precision + n + 8)
Format: '-h(precision):mm:ss.s(n)'

For example, for INTERVAL HOUR(2) TO SECOND(2), the value might be something like '-13:27:58.17'.

Range of Values

The range of values for INTERVAL HOUR TO SECOND is as follows.

Type, Precision, and Fractional Seconds Precision Minimum Value Maximum Value
INTERVAL HOUR(1) TO SECOND(0) -'9:59:59' '9:59:59'
INTERVAL HOUR(1) TO SECOND(1) -'9:59:59.9' '9:59:59.9'
INTERVAL HOUR(1) TO SECOND(2) -'9:59:59.99' '9:59:59.99'
INTERVAL HOUR(1) TO SECOND(3) -'9:59:59.999' '9:59:59.999'
INTERVAL HOUR(1) TO SECOND(4) -'9:59:59.9999' '9:59:59.9999'
INTERVAL HOUR(1) TO SECOND(5) -'9:59:59.99999' '9:59:59.99999'
INTERVAL HOUR(1) TO SECOND(6) -'9:59:59.999999' '9:59:59.999999'
INTERVAL HOUR(2) TO SECOND(0) -'99:59:59' '99:59:59'
INTERVAL HOUR(2) TO SECOND(1) -'99:59:59.9' '99:59:59.9'
INTERVAL HOUR(2) TO SECOND(2) -'99:59:59.99' '99:59:59.99'
INTERVAL HOUR(2) TO SECOND(3) -'99:59:59.999' '99:59:59.999'
INTERVAL HOUR(2) TO SECOND(4) -'99:59:59.9999' '99:59:59.9999'
INTERVAL HOUR(2) TO SECOND(5) -'99:59:59.99999' '99:59:59.99999'
INTERVAL HOUR(2) TO SECOND(6) -'99:59:59.999999' '99:59:59.999999'
INTERVAL HOUR(3) TO SECOND(0) -'999:59:59' '999:59:59'
INTERVAL HOUR(3) TO SECOND(1) -'999:59:59.9' '999:59:59.9'
INTERVAL HOUR(3) TO SECOND(2) -'999:59:59.99' '999:59:59.99'
INTERVAL HOUR(3) TO SECOND(3) -'999:59:59.999' '999:59:59.999'
INTERVAL HOUR(3) TO SECOND(4) -'999:59:59.9999' '999:59:59.9999'
INTERVAL HOUR(3) TO SECOND(5) -'999:59:59.99999' '999:59:59.99999'
INTERVAL HOUR(3) TO SECOND(6) -'999:59:59.999999' '999:59:59.999999'
INTERVAL HOUR(4) TO SECOND(0) -'9999:59:59' '9999:59:59'
INTERVAL HOUR(4) TO SECOND(1) -'9999:59:59.9' '9999:59:59.9'
INTERVAL HOUR(4) TO SECOND(2) -'9999:59:59.99' '9999:59:59.99'
INTERVAL HOUR(4) TO SECOND(3) -'9999:59:59.999' '9999:59:59.999'
INTERVAL HOUR(4) TO SECOND(4) -'9999:59:59.9999' '9999:59:59.9999'
INTERVAL HOUR(4) TO SECOND(5) -'9999:59:59.99999' '9999:59:59.99999'
INTERVAL HOUR(4) TO SECOND(6) -'9999:59:59.999999' '9999:59:59.999999'

Implicit and Explicit INTERVAL HOUR TO SECOND Conversion

Vantage performs implicit conversion from one Interval data type to another Interval type in some cases. You can also use CAST to explicitly convert one Interval type to another.

Conversions are possible only within the same INTERVAL family. For example, you may convert a YEAR interval to months, but not to days or hours.

For more information, see Teradata Vantage™ - SQL Functions, Expressions, and Predicates, B035-1145.