從.net應用程序執行Oracle存儲過程

Question

我試圖從我的.net應用程序執行存儲過程，但我收到一個錯誤

ORA-00900：無效的SQL語句“

有什么建議嗎？

 await Context.Database.SqlQuery<Equipment>(_execPackage, new OracleParameter("ID", obID),
                new OracleParameter("Time", time),
                new OracleParameter("rNo", No).ToListAsync();

 private readonly string _execPackage = $@" EXEC procedurename(:ID,:Time,:rNo)";        

Answer 1

這是有效的

 await Context.Database.SqlQuery<object>($@" CALL procedurename(:p1,:p2,:p3)",
    new OracleParameter("p1", obID),
     new OracleParameter("p2", time),
     new OracleParameter("p3", Nmbr).ToListAsync();

Answer 2

這可能看起來很冗長，但這是我更喜歡設置對存儲過程的調用的方式：

using (var context = new DbContext()) // you don't have to strictly use this to reference the context, it's just what i gravitate towards
{
    var in_Id = new OracleParameter("in_ID", OracleDbType.TYPE, obID, ParameterDirection.Input);
    var in_time = new OracleParameter("in_time", OracleDbType.TYPE, time, ParameterDirection.Input);
    var in_rNo = new OracleParameter("in_rNo", OracleDbType.TYPE, No, ParameterDirection.Input);

   await  context.Database.SqlQuery<object>("BEGIN procedurename(:in_Id, :in_time, :in_rNo); END;", in_Id, in_time, in_rNo).ToListAsync();

}

有一點需要注意，如果ID參數是帶有自動生成其值的序列的PK，您將需要引用序列而不是傳入參數：

context.Database.SqlQuery<object>("BEGIN procedurename(SEQUENCE_NAME.nextval, :in_time, :in_rNo); END;", in_Id, in_time, in_rNo);