sql - 更改表添加列语法

Question

我正在尝试以编程方式向员工表添加标识列。不确定我的语法做错了什么。

ALTER TABLE Employees
  ADD COLUMN EmployeeID int NOT NULL IDENTITY (1, 1)

ALTER TABLE Employees ADD CONSTRAINT
    PK_Employees PRIMARY KEY CLUSTERED 
    (
      EmployeeID
    ) WITH( STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, 
    ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]

我做错了什么？我尝试导出脚本，但 SQL Mgmt Studio 执行了整个临时表重命名操作。

更新: 我认为第一个语句“关键字‘COLUMN’附近的语法不正确。”令人窒息。

Answer 1

只需从ADD COLUMN中删除COLUMN

ALTER TABLE Employees
  ADD EmployeeID numeric NOT NULL IDENTITY (1, 1)

ALTER TABLE Employees ADD CONSTRAINT
        PK_Employees PRIMARY KEY CLUSTERED 
        (
          EmployeeID
        ) WITH( STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, 
        ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]