HQL查询，用于从表中获取数据

Question

I want to write a hql as like this

Select * from tableName where columnName= null or columnName=0

As i am new to this please help me out

Answer 1

You could try something like this.

select column1, column2,....
from tableName
where (columnName = null or columnName = 0)

There are some useful tutorials below:

http://www.tutorialspoint.com/hibernate/hibernate_query_language.htm http://www.roseindia.net/hibernate/index.shtml http://dev.wavemaker.com/wiki/bin/Dev/HqlTutorial#HHQLWHEREClause

Answer 2

你可以简单地写

FROM PojoName pojo WHERE pojo.property is null or  pojo.property=0