Time Interval Functions
| Function | Description |
|---|---|
| NumToDSInterval | Converts number x to INTERVAL DAY TO SECOND. |
| NumToYMInterval | Converts number x to INTERVAL YEAR TO MONTH. |
| TO_DSInterval | Converts string x to INTERVAL DAY TO SECOND. |
| TO_YMInterval | Converts string x to INTERVAL YEAR TO MONTH. |