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Asked: 2026-05-10T20:17:50+00:00

Which SQL statement is faster? SELECT TOP 2 c1.Price, c2.Price, ….. c49.Price, c50.Price FROM

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Which SQL statement is faster?

SELECT TOP 2 c1.Price, c2.Price, ..... c49.Price, c50.Price FROM Table1 AS c1, Table2 AS c2, ..... Table49 AS c49, Table50 AS c50 WHERE c1.Date = c2.Date AND c2.Date = c3.Date ..... c49.Date = c50.Date ORDER BY c1.ID DESC          OR  SELECT TOP 2 c1.Price, c2.Price, ..... c49.Price, c50.Price FROM (Table1 AS c1   INNER JOIN (Table2 AS c2      ........   INNER JOIN (Table49 AS c49    INNER JOIN Table50 AS c50   ON c49.Date = c50.Date)     ........  ON c2.FullDate__ = c3.FullDate__) ON c1.FullDate__ = c2.FullDate__) ORDER BY c1.ID DESC';

Basically I need to extract 2 rows from each table to produce a summary periodically. Which statement is faster?

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1 Answer

  1. What is faster is not having 50 tables to start with. Joining 50 tables might be ok, but it’s a highly counter-intuitive design and probably not the most maintainable solution.

    Can you not store your data in rows (or columns) of a single (or fewer) tables rather than 50 tables??!

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