sql - sqlcommand.parameters.add() 和 sqlcommand.parameters.addwithvalue() 有什么区别

Question

我们可以在将参数传递给 sql 查询时同时使用这两种方法吗？
那么它们之间有什么区别呢？

Answer 1

MSDN article on AddWithValue() 解释两者之间的差异。内是对细微差异的解释。

AddWithValue replaces the SqlParameterCollection.Add method that takes a String and an Object.

The overload of Add that takes a string and an object was deprecated because of possible ambiguity with the SqlParameterCollection.Add overload that takes a String and a SqlDbType enumeration value where passing an integer with the string could be interpreted as being either the parameter value or the corresponding SqlDbType value.

Use AddWithValue whenever you want to add a parameter by specifying its name and value.