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Re: Does prefixing field names with their table name improve query speed?
Posted by: Peter Brawley
Date: February 18, 2016 05:21PM

> Correction states that the right answer to this question is answer 1., meaning that statements 2. and 3. are correct.

Doesn't follow. Nor does the opposite: the best choice need not be the only correct choice.

If a column name occurs in more than one referenced table, the SQL parser will insist on a qualification. Apart from that, qualification has no effect on query speed.

If a query invokes multiple tables, qualified column names may greatly improve readability. The more self-documenting a query is, the easier it is to debug and maintain.

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Does prefixing field names with their table name improve query speed?
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Guillaume TRUCHOT
February 18, 2016 04:02PM
Re: Does prefixing field names with their table name improve query speed?
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Peter Brawley
February 18, 2016 05:21PM
Re: Does prefixing field names with their table name improve query speed?
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Rick James
February 21, 2016 07:19PM


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