SKU: 78675743400

SQL Weaknesses on Database Processing

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Description

SQL Weaknesses on Database ProcessingThis book describes some interesting aspects of the weaknesses and conflictive aspects that the language SQL has in Database Processing, it includes some characteristics of the language that are valid from the perspective of the mathematical theory of Logic, but in the queries could lead us to misinterpretations of results. The intent of this book is to be used along with SQL books because it focuses specifically on the weaknesses and conflictive

This book describes some interesting aspects of the weaknesses and conflictive aspects that the language SQL has in Database Processing, it includes some characteristics of the language that are valid from the perspective of the mathematical theory of Logic, but in the queries could lead us to misinterpretations of results.

The intent of this book is to be used along with SQL books because it focuses specifically on the weaknesses and conflictive aspects of the language SQL.

This work is an essential resource for any IT professional who works with SQL databases, because the quality of the information in a SQL database depends entirely on the quality of the database queries, for this reason is essential to know the weaknesses and conflictive aspects of the SQL language to build correct queries. ItÕs assumed that the reader has an intermediate knowledge of the language SQL.

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SKU: 78675743400

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Veronica Mariano
Pawtucket, US
★★★★★ 5
Strong and holds up to aggressive chewing
Color: Blue, Color: Blue
This was a fast favorite for our extremely aggressive chewer ('indestructible' toys are typically destroyed within hours)... this has survived about a week and still going strong.
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Reviewed in the United States on May 27, 2026
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Judy P.
Cuba, US
★★★★★ 4
My dog is a very aggressive chewer.
Color: Blue
My dog is an aggressive chewer and this lasted about 3 weeks before he started to get into the plastic and I had to throw away. It lasted longer than other chew toys so it was good. However the tail makes it easier for him to chew off into pieces. He gets nervous and needs to chew on something. I find the hard cheese sticks a better option for his nervousness.
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Reviewed in the United States on May 25, 2026
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Blackbird
Pawtucket, US
★★★★★ 5
Excellent
Color: Tan
The only problem I have is that it comes apart a little too easily. My cat is the most finicky thing in the world, but she loves this as much as she can. She's not really one for toys. This, a scratch post, and a cardboard scratcher are her only toys she favors. I almost died of shock when she used this the first time😅
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Reviewed in the United States on January 23, 2024
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lucycmorr
Cuba, US
★★★★★ 5
Tighten the compression nut
Color: Tan, Color: Tan
My cat loved this groomer right out of the box! She was so aggressive, though, that the brush kept coming out of the base. When my husband got home from work, I asked if he could put some kind of glue in it. Two minutes later, he had it fixed. He says this is a compression nut that you tighten with your fingers (a wrench would probably break it) on to the metal ends of the brush. The look on his face said what he didn't dare say out loud. In my defense, there were no instructions included.
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Reviewed in the United States on April 3, 2022
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Bonnie L. OBrien
West Palm Beach, US
★★★★★ 4
Cat likes it
Color: Tan
My cat doesn't use it a lot but when she does she seems to like it
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Reviewed in the United States on May 13, 2026

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