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Use LIKE %..% with field values in MySQL

Posted by: admin November 1, 2017 Leave a comment

Questions:

I stumbled into a delicate SQL problem when I needed to use a value from a field inside a LIKE %..% statement.

Example:

SELECT t1.Notes, t2.Name
FROM Table1 t1, Table2 t2
WHERE t1.Notes LIKE '%t2.Name%'

This is only an example from the top of my head to show what I need to do (I know this will not work). I need to use the value of t2.Name inside the LIKE %..%

I guess this is trivial when you know it 😉

Answers:

Use:

SELECT t1.Notes, 
       t2.Name
  FROM Table1 t1
  JOIN Table2 t2 ON t1.Notes LIKE CONCAT('%', t2.Name ,'%')

Questions:
Answers:
  SELECT t1.a, t2.b
  FROM t1
  JOIN t2 ON t1.a LIKE '%'+t2.b +'%'

because the last answer not work