The problem: Many a times people find that they create index but the query is still slow or the index is not being used by MySQL to fetch the result-set. Mostly the reason is that the index is not created properly, either not the right columns being indexed or the order of columns in the index does not match how its being used in the query. The order of index! What’s that. Well that’s what we will be discussing today. How does the order of column in the index matter? The order of columns in the index matters a lot,...
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May
25
2010
Showing entries 1 to 1