Question

I want to run a script on a SQL table that will search the table for the users supervisor and then replace the supervisor value with the fullname value. How can I do this? I am using MSSQL and have one table containing this data.

Before:

fullname,username,supervisor
Timothy Dalton,tdalton,rmoore
Pierce Brosnan,pbrosnan,rmoore
Sean Connery,sconnery,rmoore
Roger Moore,rmoore,dcraig
Daniel Craig,dcraig,

After script:

fullname,username,supervisor
Timothy Dalton,tdalton,Roger Moore
Pierce Brosnan,pbrosnan,Roger Moore
Sean Connery,sconnery,Roger Moore
Roger Moore,rmoore,Daniel Craig
Daniel Craig,dcraig,

Thanks

Answer 1

Try something like this

Update t1
    set t1.supervisor = t2.Fullname
from YourTable t1 
    join YourTable t2 on t1.supervisor = t2.username

This code hasn't been tested ... so make sure to backup table before using it

Answer 2

尝试使用以下查询。请注意，如果有ALTER TABLE Employee ADD DepartmentID INT NOT NULL Default -1; UPDATE Employee SET Employee.DepartmentID = @DepartmentID WHERE DepartmentID = -1; ALTER TABLE Employee ADD CONSTRAINT fk_employee_to_department FOREIGN KEY (DepartmentID) REFERENCES Department;，则以下查询将失败。（例如，如果multiple supervisors with same last name and first name starts with same character为supervisor且rmoore中有Roger Moore和Royal Moore，则以下查询将使用以下任何一个名称更新主管）

full name

Search SQL table for value, lookup another value in that record and replace with value

2 个答案: