从.net应用程序执行Oracle存储过程

Question

我试图从我的.net应用程序执行存储过程，但我收到一个错误

ORA-00900：无效的SQL语句“

有什么建议吗？

 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

这是有效的

 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

这可能看起来很冗长，但这是我更喜欢设置对存储过程的调用的方式：

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();

}

有一点需要注意，如果ID参数是带有自动生成其值的序列的PK，您将需要引用序列而不是传入参数：

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