The following table lists the ANCHOR anchor_name variables for the EXPAND ON clause.
| Anchor Name | Description |
|---|---|
| ANCHOR_MILLISECOND | Produces multiple expanded rows, one for each millisecond in the input period. |
| ANCHOR_SECOND | Produces multiple expanded rows, one for each second in the input period. |
| ANCHOR_MINUTE | Produces multiple expanded rows, one for each minute in the input period. |
| ANCHOR_HOUR | Produces multiple expanded rows, one for each hour in the input period. |
| DAY | The expansion interval is INTERVAL '1' DAY for each expanded row. |
| WEEK_BEGIN | Produces multiple expanded rows, one for each beginning value of a week present in the input period. |
| WEEK_END | Produces multiple expanded rows, one for each ending value of a week present in the input period. |
| MONTH_BEGIN | Produces multiple expanded rows, one for each beginning value of a month present in the input period. An example query that uses such expansion is “Get the month end average inventory cost during the last quarter of the year 2010." |
| MONTH_END | Produces multiple expanded rows, one for each ending value of a month present in the input period. |
| QUARTER_BEGIN | Produces multiple expanded rows, one for each beginning value of a quarter present in the input period. |
| QUARTER_END | Produces multiple expanded rows, one for each ending value of a quarter present in the input period. |
| YEAR_BEGIN | Produces multiple expanded rows, one for each beginning value of a year present in the input period. |
| YEAR_END | Produces multiple expanded rows, one for each ending value of a year present in the input period. |
| MONDAY | An anchor period expansion produces rows whose period beginning bounds are always aligned to specific DateTime values derived from the anchor names. For this specification, the period beginning bound is the first Monday in the specified period. |
| TUESDAY | The period beginning bound is the first Tuesday in the specified period. |
| WEDNESDAY | The period beginning bound is the first Wednesday in the specified period. |
| THURSDAY | The period beginning bound is the first Thursday in the specified period. |
| FRIDAY | The period beginning bound is the first Friday in the specified period. |
| SATURDAY | The period beginning bound is the first Saturday in the specified period. |
| SUNDAY | The period beginning bound is the first Sunday in the specified period. |