====== MIN_PART_DATE Function - PL/HQL ======
MIN_PART_DATE function finds the minimum value for the specified partition column of type DATE.
**Syntax**:
MIN_PART_DATE([db_name.]table_name [, column_name [, part_col=filter, ...]]);
**Parameters:**
| **Parameter** | **Type** | **Value** | **Description** |
| [dbname.]table_name | VARCHAR | Identifier, variable or expression | Table name |
| column_name | VARCHAR | Identifier, variable or expression | Partition column name |
| part_col=filter | | | Partition filter |
**Notes**:
* If column name is not specified, the first partition column is used
* Partition filter applied before finding the minimum value
**Return Value:**
* The minimum date for the specified partition
* NULL if the table or partition do not exist, or the table is empty
**Return Type:**
DATE.
**Example 1:**
Table //db.orders// is partitioned by //local_date// and has the following partitions:
| local_date=2014-12-02 |
| local_date=2014-12-03 |
| local_date=2014-12-04 |
Find the minimum value of the partition:
MIN_PART_DATE(db.orders);
Result: 2014-12-02
**Example 2:**
Table //db.sales// is partitioned by //country// and //local_date// and has the following partitions:
| country=US/local_date=2014-12-02 |
| country=US/local_date=2014-12-03 |
| country=UK/local_date=2014-12-04 |
Find the minimum value for //local_date// partition column for country US:
MIN_PARTITION_DATE(db.sales, local_date, country='US');
Result: 2014-12-02
**Compatibility**: PL/HQL extension.
**Version:** PL/HQL 0.01
See also:
* [[max-part-date|MAX_PART_DATE(table, colname, partition_spec)]]
* [[max-part-string|MAX_PART_STRING(table, colname, partition_spec)]]
* [[min-part-string|MIN_PART_STRING(table, colname, partition_spec)]]
* [[max-part-int|MAX_PART_INT(table, colname, partition_spec)]]
* [[min-part-int|MIN_PART_INT(table, colname, partition_spec)]]