您也可以从更新指令码置放主索引键、索引和唯一的条件约束。

You can also drop primary keys, indexes, and unique constraints from the update script.

youdao

您也可以从更新指令码置放主索引键、索引和唯一的条件约束。

You can also drop primary keys, indexes, and unique constraints from the update script.

youdao