Joe Celko's Joe Celko's SQL for Smarties: Advanced SQL Programming (4th PDF

By Joe Celko

SQL for Smarties used to be hailed because the first e-book committed explicitly to the complicated ideas had to rework an skilled SQL programmer into a professional. Now, 15 years later and in its fourth version, this vintage reference nonetheless reigns ultimate because the basically publication written via a SQL grasp that teaches programmers and practitioners to turn into SQL masters themselves! those should not simply guidance and methods; additionally provided are the easiest ideas to outdated and new demanding situations. Joe Celko conveys how you have to imagine on the way to get the main out of SQL programming efforts for either correctness and function. New to the fourth version, Joe positive factors new examples to mirror the ANSI/ISO criteria so an individual can use it. He additionally updates info aspect names to satisfy new ISO-11179 ideas with an identical experience-based instructing kind that made the former variants the classics they're today.

KEY good points

* professional suggestion from a famous SQL authority and award-winning columnist who has given ten years carrier to the ANSI SQL criteria committee

* Teaches rankings of complex concepts that may be used with any product, in any SQL setting, if it is an SQL ninety two or SQL 2008 environment

* bargains suggestions for operating round deficiencies and provides perception into real-world challenges

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Additional resources for Joe Celko's SQL for Smarties: Advanced SQL Programming (4th Edition) (The Morgan Kaufmann Series in Data Management Systems)

Example text

If the collation for the comparison has the NO PAD characteristic and the shorter value is equal to some prefix of the longer value, then the shorter value is considered less than the longer value. If the collation for the comparison has the PAD SPACE characteristic, for the purposes of the comparison, the shorter value is effectively extended to the length of the longer by concatenation of s on the right. SQL normally pads a the shorter string with spaces on the end and then matches them, letter for letter, position by position.

1 CREATE CHARACTER SET You will not find this syntax in many SQLs. The vendors will default to a system level character set based on the local language settings. ::= CREATE CHARACTER SET [AS] [] ::= GET The usually is defaulted also, but you can use named collations. 2 CREATE COLLATION ::= CREATE COLLATION FOR FROM [] ::= NO PAD | PAD SPACE Chapter 3 SCHEMA LEVEL OBJECTS 33 The option has to do with how strings will be compared to each other.

Microsoft says that they should be unique for about a century. org/wiki/GUID): The algorithm used for generating new GUIDs has been widely criticized. , a document could be tracked back to the computer that created it. After this was discovered, Microsoft changed the algorithm so that it no longer contains the MAC address. This privacy hole was used when locating the creator of the Melissa worm. Besides the usual problems with exposed physical locators, each GUID requires 16 bytes of storage, whereas a simple INTEGER needs only 4 bytes on most machines.

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