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php - What is PDO scrollable cursor?

What is "Fetching rows with a scrollable cursor" all about?

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It creates a cursor for the query, which allows you to iterate over the result set without fetching the whole result at once. A scrollable cursor, specifically, is one that allows iterating backwards.

Example use: You can scroll forward until you find the record you need and iterate back to fetch the previous records, if you need them, too.


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