The new features we will be looking at are : optional command parameters, variable actions based on parameters, and internal grammar state variables 我們將查看的新功能是:可選的命令參數(shù)、基于參數(shù)的變量操作和內(nèi)部文法狀態(tài)變量。
The data adapter object contains the four optional commands for the select, insert, update, and delete operations, which may be sql statements or stored procedure calls -該數(shù)據(jù)適配器對象包含四個可選命令,用于可能成為sql語句或存儲過程調(diào)用的選擇、插入、更新和刪除操作。