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SQL Query with Multiple Like Clauses

开发者 https://www.devze.com 2023-01-07 12:52 出处:网络
I would like to create a SQL query, which does the following.. - I have开发者_C百科 a few parameters, for instance like \"John\",\"Smith\"

I would like to create a SQL query, which does the following.. - I have开发者_C百科 a few parameters, for instance like "John","Smith" - Now I have a articles tables with a content column, which I would like to be searched - Now, How can I find out the rows in the articles table, which has the any one of those values("John","Smith")

I cannot use content LIKE "%john% or content LIKE "%smith%", as there could be any number of incoming parameters.

Can you guys please tell me a way to do this.... Thanks


Have you considered full-text search?


While HLGEM's solution is ideal, if full-text search is not possible, you could construct a regular expression that you could test only once per row. How exactly you do that depends on the DBMS you're using.


This depends a lot on the DBMS you're using. Generally - if you don't want to use full-text search - you can almost always use regular expressions to achive this goal. For MySQL see this manual page - they even have example answering your question.


If full text search is overkill, consider putting the parameters in a table and use LIKE in theJOIN` condition e.g.

SELECT * -- column list in production code
  FROM Entities AS E1
       INNER JOIN Params AS P1
          ON E1.entity_name LIKE '%' + P1.param + '%';
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