Question

我有工作的PostgreSQL（9.5）删除声明：

delete from dx d using patients p 
where p.chart_recid = d.chart_recid 
and p.recid = 15478 and d.icd9_recid = 7574
returning d.recid

使用PetaPoco的正确电话是什么？（我试图从中返回一个int列表删除声明）。可以吗？

不编译：

List<int> deleted = db.Execute(PetaPoco.Sql.Builder
                    .Append("delete from dx d ")
                    .Append("using patients p ")
                    .Append("where p.chart_recid = d.chart_recid ")
                    .Append("and p.recid = @0 and d.icd9_recid = @1 ", (int)patient_recid, (int)icd9_recid)
                    .Append("returning d.recid")
                    );
                return deleted;

TIA

解决方案：这适用于PetaPoco stored procedure error “Incorrect syntax near the keyword 'FROM'.”}

的赞美

List<int> deleted = db.Fetch(PetaPoco.Sql.Builder
                    .Append(";delete from dx d ")
                    .Append("using patients p ")
                    .Append("where p.chart_recid = d.chart_recid ")
                    .Append("and p.recid = @0 and d.icd9_recid = @1 ", (int)patient_recid, (int)icd9_recid)
                    .Append("returning d.recid")
                    );
                return deleted;

Answer 1

Db.Execute（）调用ExecuteNonQuery方法并在异常时返回受影响的行或（-1）。我认为应该是;

int deleted = db.Execute(PetaPoco.Sql.Builder
                    .Append("delete from dx d ")
                    .Append("using patients p ")
                    .Append("where p.chart_recid = d.chart_recid ")
                    .Append("and p.recid = @0 and d.icd9_recid = @1 ", (int)patient_recid, (int)icd9_recid)
                    .Append("returning d.recid")
                    );
                return deleted;

PetaPoco的语法返回已删除记录的列表（来自PostgreSQL）？

1 个答案: