How to find most popular word occurrences in MySQL?

Question

I have a table called results with 5 columns.

I\'d like to use the title column to find rows that are say: WHERE title like \'%for sale%\

Answer 1

This would give you single words (Just if I understand what your single word means.):

select concat(val,' ',cnt) as result from(
    select (substring_index(substring_index(t.title, ' ', n.n), ' ', -1)) val,count(*) as cnt
        from result t cross join(
         select a.n + b.n * 10 + 1 n
         from 
                (select 0 as n union all select 1 union all select 2 union all select 3 
                        union all select 4 union all select 5 union all select 6 
                        union all select 7 union all select 8 union all select 9) a,
                (select 0 as n union all select 1 union all select 2 union all select 3 
                        union all select 4 union all select 5 union all select 6 
                        union all select 7 union all select 8 union all select 9) b
                order by n 
        ) n
    where n.n <= 1 + (length(t.title) - length(replace(t.title, ' ', '')))
    group by val
    order by cnt desc
) as x

Result should be looks like this :

Result
--------
for 6
sale 6
house 2
and 2
cheap 2
phones 1
iphones 1
dogs 1
furniture 1
cars 1
androids 1
cats 1

But if the single word you need like this :

result
-----------
for 6 sale 6 house 2 and 2 cheap 2 phones 1 iphones 1 dogs 1 furniture 1 cars 1 androids 1 cats 1

Just modify the query above to:

select group_concat(concat(val,' ',cnt) separator ' ') as result from( ...