Any way to select from MySQL table where a field ends in certain character/number?

Question

I am hoping to run a mysql_query where I can select a row if a certain field ends in a number. For example:

Answer 1

You can use LIKE and a wild card expression it should be somthing like

SELECT id FROM table WHERE id REGEX '%0$'
SELECT id FROM table WHERE id REGEX '%1$'

and so on.

Answer 2

You could do it with a cast and LIKE, but the performance is likely to be terrible for any non-trivial amount of data (I've not tested in your particular case, but in my experience, casting to string so you can use string operations really slows a query down).

A better way would be to use modulus.

For example, to get all the rows where the numerical field ends in a 4:

SELECT *
FROM table
WHERE MOD(column_of_interest, 10) = 4

Again, I've not benchmarked this, but it's probably going to perform better than casting would.

Of course, if the column type is already a string, then LIKE is the way to go, as using MOD on strings would also require a cast.

Answer 3

SELECT id
  FROM table
 WHERE id LIKE '%0'

Answer 4

You can use regular expressions if you need to find if field is ending in a number or not as follows

SELECT id FROM table WHERE id REGEXP '[0-9]$'

Hope it helps...

Answer 5

SELECT id FROM table WHERE mod(id, 10) = 1

give it a go

Answer 6

SELECT ...
  WHERE somefield LIKE '%1'