You need to create a column that allows you to createa unique constraint. Which two column definitions should you choose?()
- A、nvarchar(100) NULL
- B、nvarchar(max) NOT NULL
- C、nvarchar(100) NOT NULL
- D、nvarchar(100) SPARSE NULL
正确答案:A,C
答案解析:有

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You need to create a column that allows you to createa unique constraint. Which two column definitions should you choose?()
微信扫一扫手机做题