Question

I have created table as

create table tab (id int, mytext varchar(200));

Now I inserted values as

insert into tab values
(1, 'text 11,text 12,'),
(2, 'text 21,text 22,'),
(3, 'text 31,text 32,'),
(4, 'text 41,text 42,');

Now what I wanted to do is add text text none, at the start of the text. For that I had to execute query as

update tab set mytext = concat('text none,', mytext)

However, mistakenly I executed the query as:

update tab set mytext = concat('text none', mytext)

I missed the COMMA (,) after ‘none’.

Now I have data as

1   textnonetext 11,text 12,
2   textnonetext 21,text 22,
3   textnonetext 31,text 32,
4   textnonetext 41,text 42,

What I want is change above output to:

1   textnone,text 11,text 12,
2   textnone,text 21,text 22,
3   textnone,text 31,text 32,
4   textnone,text 41,text 42,

i.e. add comma(,) after none.

Any idea how to get this done?

SQL Fiddle for testing

Note : The length of the original data in the mytext fields is not fixed; for some ids it’s 6, for some it’s 50.

Answer 1

Try this one,

update tab 
set mytext = concat('text none, ', Replace(mytext, 'text none',''));

SQLFiddle Demo

or simply do replace if you don’t have any special reason to use concat

update tab 
set mytext = Replace(mytext, 'text none','text none, ');