how so select similarities in MySQL?
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Published on 2010-05-18T06:19:36Z
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2010/05/18
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Currently, I am doing a search function.
Lets say in my database, I have this data:
- Keyword1
- Keyword2
- Keyword3
- Keysomething
- Key
and the user entered: "Key" as the keyword to search. This is my current query: Q1: SELECT * FROM data WHERE (data_string LIKE '$key%' OR data_string LIKE '%$key%' OR data_string LIKE '%$key')
Basically, I have 2 questions:
How do I sort by (order by) similarity. From above example, I should have "Key" as my first result. My current result is: Keyword1, Keyword2, Keyword3, Keysomething and Key
My SQL query only search by the "data_string" column, what if I want to seach others column? Do I need to do something like this:
Q2: SELECT * FROM data WHERE (data_string LIKE '$key%' OR data_string LIKE '%$key%' OR data_string LIKE '%$key') OR (data_other LIKE '$key%' OR data_other LIKE '%$key%' OR data_other LIKE '%$key') ...
Is there any better/faster query than Q2?
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