These contain a simple employee record.
它包含了一个简单的雇员记录。
Next, create a simple SQL select statement that returns an employee record.
接下来,创建一个简单的SQL select语句,该语句返回一个雇员记录。
There is a possibility that both managers try to update the same employee record at the same time.
此时存在一种可能,即两名经理可能同时对同一名员工的记录进行更新。
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