time stamp constant
常见例句
- DurationLabel: Identifies the duration that is associated with the Constant value specified if the partitioning key column has been assigned a date, time, or time stamp data type.
DurationLabel：如果分區鍵列的數據類型是日期、時間或時間戳，這個蓡數指定與 Constant 值相關的時間單位。 返回 time stamp constant