SQL query to prepend prefix to existing value in a field

Question

I have searched and searched for an answer to this, and I think this must be child\'s play for anyone who KNOWS SQL (which is not me).

I want to insert a prefix to the v

Answer 1

update tablename set title = 'Mr. ' || title where ....

Answer 2

UPDATE jos_content SET title = CONCAT('Mr. ', title) WHERE 1

Before testing the query do make a database backup.

Answer 3

just do it like this

If, for example, I want to add +symbol before the countrycode:

UPDATE [masters].[country] SET Countrycode = '+' +Countrycode

Answer 4

You have no other conditions like update this in all rows then you can try

UPDATE jos_content SET title = CONCAT('Mr. ', title) 

if you want to update conditionally that means particular row needs to update the you can use

 UPDATE jos_content SET title = CONCAT('Mr. ', title)  where fiedl_name ='condition'

eg: UPDATE jos_content SET title = CONCAT('Mr. ', title)  where id = '1'

this will update only one row which contain id=1.

any way before doing this should keep a backup