named parameters - HQL Query with multiple Criteria -


I am trying to write an HQL query which selects rows from the table based on several criteria. First name, last name

It is a catch that the query must be flexible to ignore any empty or zero values ​​

such a 

  from the table Select t (: Firstname = '' or t.firstName =: firstName) AND (: lastName = '' OR t.lastName =: lastName)

I would have thought that this would work ? But this is not - does it ever return any rows? Any thoughts that might be wrong here? I am very new to why this question is.

If I understand correctly, you can search the user by first, last name or both You should check that if the passed parameter is empty, do not make it a condition if they provide all the blank parameters then it will return the whole table Try: 

  Select the table where (: firstname is IS NULL or t.firstName =: firstName) and (: lastName IS NULL or t.lastName =: lastName)

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