Sorting MySQL Fulltext Search Results by Relevancy
When working with MySQL, it's essential to understand the difference between LIKE and fulltext search for accurate result sorting.
In the provided query:
$query="SELECT * from `vocabulary` WHERE translation = 'word' OR translation LIKE '%word%'";
The LIKE operator is used for partial matching, not fulltext search. To perform a fulltext search, use the MATCH(...) AGAINST(...) syntax.
For example:
$query="SELECT * from `vocabulary` WHERE MATCH(translation) AGAINST('+word')";
The MATCH function returns a matching score that can be used as an approximation of relevancy. This score can be used for sorting the results. For example:
$query="SELECT *, MATCH(translation) AGAINST('+word') AS score FROM `vocabulary` ORDER BY score DESC";
This query sorts the results by relevancy, with the highest-scoring matches appearing first.
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