Download Models and languages of object-oriented databases by Lausen G., Vossen G. PDF

By Lausen G., Vossen G.

Brings jointly key advancements in OO databases from components equivalent to semantic modelling, formal info versions, language layout concerns, item algebra and rule-based question languages. indicates how those parts might engage inside an object-oriented database approach. Paper. DLC: Object-oriented database.

Show description

Read Online or Download Models and languages of object-oriented databases PDF

Best databases books

IBM Cognos 10 Framework Manager

A accomplished, sensible consultant to utilizing this crucial device for modeling your facts to be used with IBM Cognos company Intelligence Reporting with this ebook and ebook.

Overview

• all the and useful consultant to IBM Cognos Framework Manager;
• choked with illustrations and tips for making the easiest use of this crucial device, with transparent step by step directions and useful examples;
• all of the info you wish, beginning the place the product handbook ends.

In element

IBM Cognos 10 Framework supervisor is a whole useful consultant to utilizing and getting the easiest out of this crucial instrument for modeling your info to be used with IBM Cognos company Intelligence Reporting. With its step by step process, this booklet is appropriate for someone from a newbie to a professional, entire with information and tips for larger info modeling.

IBM Cognos 10 Framework supervisor is a step by step tutorial-based consultant; from uploading your info to designing and enhancing your version, and growing your programs whereas operating with different modelers, each step is gifted in a logical process.

Learn tips to use the simplest layout technique to layout your version, create an import layer, a modeling layer, and a presentation layer to make your version effortless to maintain.
Do you want to layout a DMR version? No challenge, this ebook indicates you each step. This e-book can also make operating with different clients easier—we will exhibit you the equipment and strategies for permitting others to paintings at the related version on the related time.
Need to create dynamic info buildings to alter the way in which the knowledge is gifted for your clients so your French clients can see the knowledge in French, your German clients in German, and your English clients in English? you are able to do all this with parameter maps.

IBM Cognos 10 Framework supervisor keeps the place the product manuals finish, displaying you the way to construct and refine your venture via useful, step-by-step instructions.

What you are going to research from this book

• the right way to import and version your relational data;
• Create beneficial reporting applications to your authors;
• Utilise parameters and parameter experiences effectively;
• enhance performance and deal with a multi-user model;
• how you can use version layout Accelerator to create your first model.

Approach

Presented in a hands-on sort, this advisor provides you with actual international examples to lead you thru each procedure step via step.

Who this publication is written for

This ebook might be important for any developer, amateur or professional, who makes use of Framework supervisor to construct programs, yet desires to extend their wisdom even additional.

Distributed Storage Networks: Architecture, Protocols and Management

The global marketplace for SAN and NAS garage is expected to develop from US $2 billion in 1999 to over $25 billion via 2004.  As business-to-business and business-to-consumer e-commerce matures, even higher calls for for administration of kept facts will come up. With the quick raise in facts garage requisites within the final decade, effective administration of kept info turns into a need for the company.

Professional Microsoft SQL Server 2008 Administration (Wrox Programmer to Programmer)

SQL Server 2008 represents a large leap ahead in scalability, functionality, and usefulness for the DBA, developer, and company intelligence (BI) developer. it's now not extraordinary to have 20-terabyte databases working on a SQL Server. SQL Server management used to simply be the activity of a database administrator (DBA), yet as SQL Server proliferates all through smaller businesses, many builders have began to behave as directors to boot.

Extra resources for Models and languages of object-oriented databases

Sample text

Dll into one of the Windows library paths: [ 30 ] Chapter 2 There are other common errors we can get when installing UDFs, but they are normally easier to diagnose: ERROR 1127 (HY000): Can't find symbol 'my_udf' in library This error shows that MySQL has loaded the library, but while searching it for the functions inside, it could not find what it was expecting. This is usually due to the wrong name for the UDF used in the CREATE FUNCTION command. ERROR 1044 (42000): Access denied for user 'username'@'localhost' to database 'mysql' When installing a UDF, MySQL needs to insert an entry into the func table of the mysql database because MySQL remembers all installed UDFs to be able to load them automatically when restarted.

H> These are the standard includes needed for this example. h contains the structures and constants that we will use. my_bool udf_staticexample_init(UDF_INIT *initid, UDF_ARGS *args, char *message) { We are calling this UDF udf_staticexample so all functions need to be prefixed with this. We start with the udf_staticexample_init() function, which as we have seen before, prepares the UDF for execution in the context of an SQL statement. long long *staticint = malloc(sizeof(long long)); if (staticint == NULL) { strcpy(message, "staticexample() allocation error"); return 1; } Here we declare a pointer to a type long long and allocate memory for it.

We could expect to see this error if the MySQL server crashes when installing or removing a UDF. To fix this, follow the usual MyISAM repair instructions as found in the MySQL manual. Defining UDFs All functions in the UDF API start with the name of the UDF itself. For example, if the UDF is called name (that is, installed with CREATE FUNCTION name and used like SELECT name()) the corresponding C functions may be called: name(), name_init(), name_deinit(), and so on. The following table lists all UDF API functions and their purpose: [ 31 ] User Defined Functions Function name_init() Normal / Aggregate Description Both Initialize the UDF for use.

Download PDF sample

Rated 4.00 of 5 – based on 33 votes