SQL SERVER: Update existing column values with linear serial numbers without loop

Introduction: In this article I am going to share how to update an existing column values with new linear sequence numbers with a single statement without looping through each row of table. Or we can also say resetting the values to new linear sequential values. 

Update existing column with linear serial number without loop in sql server

 Implementation: Let’s create a sample table and perform the desired operation.

--Create a table
CREATE TABLE tbLocations
 Location   VARCHAR(100),             
 Priority   INT

--Add some dummy data into the table

--Check inserted data
SELECT * FROM tbLocations

--Update Priority columns with linear serial number
UPDATE tbLocations SET @SrNo = Priority = @SrNo + 1

--Now Check inserted data. Priority column is reset to linear sequence 

SELECT * FROM tbLocations

Now over to you:
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