In this section, we will show you, how to use the Min() function. Hibernate supports multiple aggregate functions. When they are used in HQL queries, they return an aggregate value ( such as avg(...), sum(...), min(...), max(...) , count(*), count(...), count(distinct ...), count(all...) ) calculated from property values of all objects satisfying other query criteria.
Following is a aggregate function (min() function) with their respective syntax.
min( [ distinct | all ] object.property)
The Min() function aggregates the minimum value of the given column.
Table Name: insurance
| ID | insurance_name | invested_amount | investement_date |
| 2 | Life Insurance | 25000 | 0000-00-00 00:00:00 |
| 1 | Givan Dhara | 20000 | 2007-07-30 17:29:05 |
| 3 | Life Insurance | 500 | 2005-10-15 00:00:00 |
| 4 | Car Insurance | 2500 | 2005-01-01 00:00:00 |
| 5 | Dental Insurance | 500 | 2004-01-01 00:00:00 |
| 6 | Life Insurance | 900 | 2003-01-01 00:00:00 |
| 7 | Travel Insurance | 2000 | 2005-02-02 00:00:00 |
Here is the java code to retrieve the minimum value of "invested_amount" column from insurance table:
package roseindia.tutorial.hibernate; |
Output:
Hibernate: select min(insurance0_.invested_amount) as col_0_0_ from insurance insurance0_
Min Invested Amount: 500