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Today many say that "CRUD" stands for "Create Retrieve Update and Delete." While fine for an SQL mindset, many old-timers got used to the acronym standing for "Create READ Update Delete" way back in the 1970's. Indeed, the term dates back even farther than ISAM. ...

By way of a handy completeness check-moniker however (the intended use?), the pattern works much the same for both camps. --The only difference is a record-oriented, rather than a QUERY oriented, mentality; Enjoying an expected result set of 1:1, -v- 1:*... or the difference between knowing what to expect, and perhaps having WAY too many (*) data coming back to process / secure effectively.

When designing software, be sure to know the difference. Why? Because while the classic 1:1 usage is easy and succinct, supporting the modern variant will imply many more activities. Discussions over things such as pre-queries, limiting queries, session limits, timeouts, roles, SQL injection attacks, view creation (etc.) invariably have to be considered. Activities that will consume not only design & implementation time, but data-processing resources, as well.

(Note: If you have followed a permalink to this article, then you will not have noticed a subsequent example. -Here is an interesting example.)



(*) Data is plural - Sounds odd, don't it? :)

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