Question

How would I write the SQL to remove some text from the value of records if it exists.

Version Column data
 ------------------  
WEB 1.0.1  
WEB 1.0.1  
1.0.2  
1.0.2  

I would like to update all records that contain “WEB ” and remove that text but leave the rest, “1.0.1”.

So far I have Select * from table.

Database is MySQL 5.5.25

Answer 1

The REPLACE feature of MySQL, SQL Server, and PostGres will remove all occurrences of WEB with a blank.

Selecting

SELECT REPLACE(Version, 'WEB ', '') FROM MyTable

Updating

UPDATE MyTable SET Version = REPLACE(Version, 'WEB ', '') 

or

UPDATE MyTable SET Version = REPLACE(Version, 'WEB ', '') WHERE Version LIKE '%WEB %'

Reference

• REPLACE – SQL Server
• REPLACE – MySQL
• REPLACE – PostGres
• I included multiple DB Servers in the answer as well as selecting and updating due several edits to the question