Question

I am trying to delete multiple records from TABLE A that exits in list of ids in TABLE B as follows:

List<ulong> ids = new List<ulong> {1, 2};

string deleteQuery = string.Format(
                @"DELETE FROM TABLE_A WHERE EXISTS 
                (SELECT id FROM TABLE_B WHERE checkpoint_id IN :idList)");

Session.CreateQuery(deleteQuery).SetParameterList("idList", ids).ExecuteUpdate();

I get the following Exception:

NHibernate.Hql.Ast.ANTLR.QuerySyntaxException: Exception of type 'Antlr.Runtime.NoViableAltException' was thrown. near line 2, column 100

If I put the list hardcoded [IN (1,2)] it works.
What do I miss?

Answer 1

Found the problem:

I needed an extra brackets arround the :idList.

string deleteQuery = string.Format(
            @"DELETE FROM TABLE_A WHERE EXISTS 
            (SELECT id FROM TABLE_B WHERE checkpoint_id IN (:idList))");