In c# i have program through which we can add a contact (name and phone number) to database and also search for a particular contact. But while searching the command doesn't return duplicate rows. Example: if there are two or multiple contacts with same name only one is returned. Why am I not seeing all the duplicates. Here is the code that I am using to searchIn c# i have program through which we can add a
阅读背景：
搜索数据库不会返回重复项
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