June 2010
Intermediate to advanced
328 pages
7h 51m
English
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Legitimate Uses of the Antipattern
A well-justified use of wildcards is in ad hoc SQL when you’re writing quick queries to test a solution or as a diagnostic check of current data. A single-use query benefits less from maintainability.
The examples in this book use wildcards to save space and to avoid distracting from the more interesting parts of the example queries. I rarely use SQL wildcards in production application code.
If your application needs to run a query that adapts when columns are added, dropped, renamed, or repositioned, you may find it best to use wildcards. Be sure to plan for the extra work it takes to troubleshoot the pitfalls.
You can use wildcards for each table individually in a join query. Prefix the wildcard with ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.