Question

我正在尝试从表A中删除多个记录，这些记录在表B中的id列表中退出，如下所示：

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();

我得到以下例外：

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

如果我把列表硬编码[IN（1,2）]就行了。我错过了什么？

Answer 1

发现问题：

我需要在：idList周围添加额外的括号。

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

nhibernate通过CreateQuery的id列表删除多个记录

1 个答案: