January 2019
Intermediate to advanced
286 pages
7h 41m
English
Content preview from Advanced MySQL 8
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Can MySQL perform queries on billions of rows?
MySQL can perform queries on many, many rows, but it also depends on the kind of query being executed. For example, if a read query contains filtering of only the primary key being equated, then that is a kind of golden query and, yes, it will perform well, but, at the same time, if it is a range/like/regex query for a primary key, then it will perform not quite as well as the previous query.
But if a query uses a non-constrained column, its performance would be worse, due to a full table scan. So, MySQL does have good performance for a table containing many rows, but it depends on the query pattern being used.
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