Internal Representation of INTERVAL DAY TO MINUTE
Conceptually, INTERVAL DAY TO MINUTE is a record that has the following fields.
| Field Name | Storage Format | Total Length |
|---|---|---|
| DAY | SMALLINT | 8 bytes (with 2 pad bytes) |
| HOUR | SMALLINT | |
| MINUTE | SMALLINT |
External Representation of INTERVAL DAY TO MINUTE
INTERVAL DAY TO MINUTE types are imported and exported in record and indicator modes as CHARACTER data using the client character set.
| Type | Format |
|---|---|
| CHARACTER(precision + 7) | '-d(precision) hh:mm' |
For example, for INTERVAL DAY (3) TO MINUTE, the value might be something like '-127 12:37'.
Range of Values
The range of values for INTERVAL DAY TO MINUTE is as follows.
| Type and Precision | Minimum Value | Maximum Value |
|---|---|---|
| INTERVAL DAY(1) TO MINUTE | -'9 23:59' | '9 23:59' |
| INTERVAL DAY(2) TO MINUTE | -'99 23:59' | '99 23:59' |
| INTERVAL DAY(3) TO MINUTE | -'999 23:59' | '999 23:59' |
| INTERVAL DAY(4) TO MINUTE | -'9999 23:59' | '9999 23:59' |
Decimal values are not allowed for Interval data types except for second intervals.
Implicit and Explicit INTERVAL DAY TO MINUTE 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 INTERVAL-to-INTERVAL Conversion.