> On Nov 28, 2019, at 1:09 PM, Antonio Silva <aolinto.lst@xxxxxxxxx> wrote: > > Hello list > > I want to replace a string (not a substring) in a field but making sure that the string in the full field. > > In the example below since 'blue' is not the full text in 'blue shark' there should not have a replacement. > > How to say "replace only with 'blue' if it is the full string in the field". > > With REPLACE I get: > > SELECT REPLACE('blue shark','blue','blue fish'); > replace > ----------------- > blue fish shark > (1 row) > > but I would like to get: > > SELECT REPLACE('blue shark','blue','blue fish'); > replace > ------------ > blue shark > (1 row) > > Thanks a lot > > Antonio Olinto does this help? select replace (a.col, ‘value’, ’new value’) where a.col = ‘value’;