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Advanced SQL:1999: Understanding Object-Relational and Other - download pdf or read online

By Jim Melton

ISBN-10: 1558606777

ISBN-13: 9781558606777

complex SQL:1999 - realizing Object-Relational and different complicated positive factors is the practitioner's guide to the standard's complicated good points. it's not a re-presentation of the traditional, yet really an authoritative, in-depth consultant to its sensible software. Like its better half, SQL:1999 - knowing Relational Language elements , which defined the standard's simple good points, this publication will assist you to make your functions either powerful and standard-compliant.

this convenient reference has a modular structure so that you can discover particular themes very easily. it really is both important to these upgrading from prior models of SQL and people with out earlier event. Written by means of the standard's distinct editor, complicated SQL:1999 will entire your wisdom and aid your abilities like no different publication can. * Focuses fullyyt at the concerns that subject to programmers who're connecting purposes to databases. * information SQL:1999's item amenities, together with based user-defined kinds, typed tables, user-defined workouts, and regimen invocation. * Examines amenities new to SQL, together with these when it comes to online analytical processing (OLAP), administration of exterior information (SQL/MED), and Java aid. * Covers the continuing improvement of XML aid. * comprises appendices that hide the SQL:1999 annexes, a SQL:1999 instance utilizing UDTs, prestige codes, and helpful details at the standardization procedure.

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Extra resources for Advanced SQL:1999: Understanding Object-Relational and Other Advanced Features (The Morgan Kaufmann Series in Data Management Systems)

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You can prevent their access by unauthorized users through the use of SQL's long-standing privilege mechanisms, such as denying EXECUTE privilege to some users on the methods. At this point, let's stop talking about attributes and their pairs of methods. " But, for now, you've got the basics of attributes and are ready to tackle structured types' semantics. 2, you learned that the semantics of SQL's structured types is provided through the use of routines and that SQL:1999 allows the behaviors of its user-defined types to be provided through routines written in any of several languages, including Java.

At first, the vendors of SQL systems responded by supporting "large object" types (LOBs, usually BLOBs for binary data and CLOBs for character data, although the names given to these types often varied from vendor to vendor). 2 What Are UDTs? 23 items in a single cell (a name I use to describe the intersection of a column and a row, even though the SQL standard has no word for that concept) of a table, the database systems rarely supported any operations, including comparisons, on such data. If any operations were supported, they tended to be simple ones such as substring, concatenation, and basic comparisons (often limited to equality and inequality).

To access a structured type attribute using dot notation, you simply specify the name of the "site" (as you learned in Volume I of this book, a site is a place where data can be stored, including columns of rows, SQL variables and host variables, and parameters of routines) whose data type is that structured type, followed by a period (the eponymous "dot"), followed by the name of the attribute. Suppose we have a customers table with an associated correlation name c, one of whose columns, named cust_addr, has a data type of address--the very same structured type I defined earlier.

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Advanced SQL:1999: Understanding Object-Relational and Other Advanced Features (The Morgan Kaufmann Series in Data Management Systems) by Jim Melton


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