Update substring of a column

Question

I have a table within a SQL Server 2008 database called Meter. This table has a column called Name.

Each entry within the column Nam

Answer 1

Here is the SQLFiddel Demo

Below is the Query which you can try

CREATE TABLE Meter
    ([Name] varchar(7))
;

INSERT INTO Meter
    ([Name])
VALUES
    ('ZAA\001')
;


select * from Meter;

Update Meter
   set Name = stuff(Name,4,1,'_')
 Where SUBSTRING(Name, 1,4) ='ZAA' + Char(92);

select * from Meter;