Select a portion from a MySQL Blob Field

Question

I have a table containing lots of data and one of them is a blob. I some times needs to look into this blob for data using PHP.

I do:

select `desc` f         


        

Answer 1

This query:

SELECT 
  CONCAT(
    '...', 
    SUBSTR(`description`, 
      LOCATE('Nam rhoncus', `description`) - 10, 
      (LENGTH('Nam rhoncus') + 20)), 
    '...') AS `description`
FROM table 
WHERE `description` LIKE '%Nam rhoncus%';

(I broke it down like this so it's easier to read)

this will output:

...m auctor. Nam rhoncus, purus eg...

So in your PHP you can do:

NOTE: Ill be careful using mysql reversed words, this is why I use description instead.