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Editorial Team
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Asked: 2026-05-15T06:36:11+00:00

A similar question has been asked, but since it always depends, I’m asking for

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A similar question has been asked, but since it always depends, I’m asking for my specific situation separately.

I have a web-site page that shows some data that comes from a database, and to generate the data from that database I have to do some fairly complex multiple joins queries.

The data is being updated once a day (nightly).

I would like to pre-generate the data for the said view to speed up the page access.

For that I am creating a table that contains exact data I need.

Question: for my situation, is it reasonable to do complete table wipe followed by insert? or should I do update,insert?

SQL wise seems like DELETE + INSERT will be easier (INSERT part is a single SQL expression).

EDIT: RDBMS: MS SQL Server 2008 Ent

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1 Answer

  1. Editorial Team

    TRUNCATE will be faster than delete, so if you need to empty a table do that instead

    You didn’t specify your RDBMS vendor but some of them also have MERGE/UPSERT commands This enables you do update the table if the data exists and insert if it doesn’t

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