This no longer works if you use arbitrary tables and fields to specify the from clause or the result clause dynamically, though, because the result set types cannot be determined at programming time.

但是，如果使用任意数量的表和字段动态地指定from子句或result子句，就不能这样了，因为在编程时无法确定结果集类型。

youdao

This no longer works if you use arbitrary tables and fields to specify the from clause or the result clause dynamically, though, because the result set types cannot be determined at programming time.

但是，如果使用任意数量的表和字段动态地指定from子句或result子句，就不能这样了，因为在编程时无法确定结果集类型。

youdao