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Editorial Team
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Asked: 2026-05-19T12:15:34+00:00

I have an DB with 40 million values and I am using autosuggest with

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I have an DB with 40 million values and I am using autosuggest with jquery and the suggestion is getting very slow. I need know two things: how can I speedup with this data (using mysql db with php) and will java with any other db improve the speed?

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1 Answer

  1. Editorial Team
    • be sure to have an index on the matching field. either an exclusive index or the first segment of the index.
    • be sure to use LIKE 'xxx%' (where xxx is the input so far); never LIKE '%xxx%'
    • be sure to limit the results with LIMIT 10 on the database, never on the app.

    edit: borrowing from bpeterson76’s answer:

    • don’t do SELECT *, get only the fields you need.
    • don’t search single-character, wait until you have at least 3 or so
    • don’t search too quickly, wait at least 100msec between queries.
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