SQL Select模式，例如column_name

Question

Are there such things as a sql query whereby the results are limited with being contained in the query value.

Normally like is :

SELECT column_name(s)
FROM table_name
WHERE column_name LIKE pattern;

I would like it to be

SELECT column_name(s)
FROM table_name
WHERE pattern LIKE column_name;

For example:

id   |   val
1    |   c:/tests/one
2    |   c:/tests/two
3    |   c:/

I can query using 'c:/tests/two/fail/results', and be returned 2 and 3, as they are sub strings.

Answer 1

SELECT column_name
FROM table_name 
WHERE instr('c:/tests/two/fail/results', column_name) > 0;

Answer 2

If you really want to use LIKE then you could use

SELECT 
    * 
FROM
    example
WHERE
    'c:/tests/two/fail/results'
LIKE
    CONCAT(val, '%');

Please regard that the right side of LIKE is a pattern and you've got to append the wildcard character '%' to it.

Demo

Note:

Of course will the solution of juergen d work and may even be faster.

Another issue with my solution is that the column val may not contain wild card characters itself. Now the two wild card characters for LIKE are

%   Matches any number of characters, even zero characters
_   Matches exactly one character

The underscore is not only an allowed character in a file path, it's often used. I recommend strongly to use the approach of juergen d.