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| | The Database Normalization Process > Normalizing a Database |
 | | Normalization is a process or set of guidelines used to optimally design a database to reduce redundant data. | | | Normal form is a way of measuring the levels, or depth, to which a database has been normalized. | | | Logical database design, also referred to as the logical model, is the process of arranging data into logical, organized groups of objects that can easily be maintained. |
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http://www.samspublishing.com/articles/article.asp?p=30646
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| | Database Normalization for the Real World > Terminology |
| | Database normalization is the practice (sometimes practice and practice and practice) of optimizing table structures and organizing the data into tables so the data will always be as unambiguous as intended. | | | Normalization allows you to adapt to changing business rules, changing requirements, and changing data without having to restructure the entire system. | | | Normalization usually involves dividing a database into two or more tables and defining relationships between the tables. |
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http://www.informit.com/articles/article.asp?p=169539
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| | Relational Model: Normalization |
| | Simply stated, normalization is the process of removing redundant data from relational tables by decomposing (splitting) a relational table into smaller tables by projection. | | | The goal of normalization is to create a set of relational tables that are free of redundant data and that can be consistently and correctly modified. | | | A relational table is in second normal form 2NF if it is in 1NF and every non-key column is fully dependent upon the primary key. |
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http://www.utexas.edu/its/windows/database/datamodeling/rm/rm7.html
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| | MySQL AB :: An Introduction to Database Normalization |
| | The goal of database normalization is to ensure that every non-key column in every table is directly dependent on the key, the whole key and nothing but the key and with this goal come benefits in the form of reduced redundancies, fewer anomalies, and improved efficiencies. | | | Database normalization is a process by which an existing schema is modified to bring its component tables into compliance with a series of progressive normal forms. | | | The first normal form (or 1NF) requires that the values in each column of a table are atomic. |
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http://dev.mysql.com/tech-resources/articles/intro-to-normalization.html
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| | Database normalization - Creating high performance from the start. |
| | It is widely assumed that to denormalize a database is a means of computing values and store them in the database, in order to 'help' the system to perform better. | | | And we have to agree; understanding relational algebra, or the formal descriptions of the Normal Forms (which actually are neccessary to cover all aspects), doesn't make it easy. | | | In today's database theory, we operate with 5 Normal Forms; 1NF through 5NF. |
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http://www.databasedesign-resource.com/normalization.html
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| | Practical database design, Part 2 |
| | The primary advantage to keeping such information in the database is that the database provides a central repository for all relevant information, as opposed to the typical approach in which data is scattered over miscellaneous files. | | | Finally, it is possible to use the database as centralized storage for configurational data. | | | Relational database tables are 1NF by construction since vector-valued entries are forbidden. |
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http://www-128.ibm.com/developerworks/web/library/wa-dbdsgn2.html
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| | ACC: Database Normalization Basics |
| | In theory, normalization is worth pursuing; however, many small tables may degrade performance or exceed open file and memory capacities. | | | If you have a Customers table and you want to eliminate all possible interfield dependencies, you must create separate tables for cities, ZIP codes, sales representatives, customer classes, and any other factor that may be duplicated in multiple records. | | | A basic understanding of this terminology is helpful when discussing the design of a relational database. |
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http://support.microsoft.com/default.aspx?scid=kb;en-us;q100139
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| | Normalized data is for sissies (kottke.org) |
| | In some ways, normalizing databases is functionally similar to semantic markup, and we know how you feel about that. | | | Normalization is pretty much inherent in the idea of a relational database schema. |
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http://www.kottke.org/04/10/normalized-data
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| | Database Design - Normalization |
| | Your database could also be the back-end of a Web site, with both middle-tier business logic and front-end presentation code dependent on it. | | | One major premise of this tutorial is that you should learn to develop the “best” possible design—which really focuses on the database structure itself. | | | By doing this, you should be able to avoid many of the problems, bugs, inconsistencies, and maintenance nightmares that frequently plague actual systems in use today. |
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http://www.tomjewett.com/dbdesign/dbdesign.php?page=normalize.php&imgsize=medium
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| | Database Normalization Techniques - Essentials |
| | The Database Normalization eBook shows you that this a far too easy approach, and it is richly documented with graphical Entity Relationship and Server Diagram examples. | | | If you are serious about understanding how databases are designed for maximum performance and minimum (no) redundancy, then you should know the details of database normalization. | | | Learn all there is about the most important database design techniques VERY FAST and in a way even your mother will understand. |
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http://www.databasedesign-resource.com/database-normalization.html
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| | SQL Server Forums at SQLTeam.com - Database Normalization is overrated. |
| | This is akin to saying “my query is not performing”
it just doesn’t make sense unless you specify the actual query (“the subject”) and its context
the same query executing in 30 seconds may be appropriate for a reporting application but may not be for another OLTP application. | | | I'm starting to realize that a completely normalized database is far too complex to work with. | | | Relational database applications (i.e., SQL Server, Oracle, even MS Access) are designed with 1 purpose in mind -- to optimize joins! |
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http://www.sqlteam.com/forums/topic.asp?TOPIC_ID=42060
(2445 words)
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| | 3 Normal Forms Database Tutorial |
| | The sample database screenshots are not meant to be taken literally, but merely as visual aids to show how the raw data gets shuffled about as the table structure becomes increasingly normalized. | | | As our database now stands, if a customer places more than one order then we have to input all of that customer's contact information again. | | | This is meant to be a very brief tutorial aimed at beginners who want to get a conceptual grasp on the database normalization process. |
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http://www.phlonx.com/resources/nf3.php
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| | WDVL: Web Databases |
| | It is time to learn about database normalization, or the optimization of tables. | | | To harness the true power of relational databases it is vital to master queries using more than one table. | | | Picked as the top Linux database by Linux Magazine for 2000 and 2001, it outperforms many commercial databases for a host of uses, especially when it comes to the web. |
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http://wdvl.internet.com/Authoring/DB
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| | Xtreme Visual Basic Talk - Database Normalization (Building Tables) |
| | You didn't say what type of database that you have - but keep in mind that if it is ACCESS - it has to copy over (in memory) - the whole bleeping recordset - even do the inquiries. | | | However, consider the projected use, size and complexity of the database. | | | Connecting different database tables to textboxes, checkboxes and datacombos |
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http://www.xtremevbtalk.com/showthread.php?t=75770
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| | [No title] |
| | When creating a database, it is often useful to learn from the mistakes of | | | For example, the following table is not in first normal form. | | | For a table to be in first normal form, data must be broken up into the smallest |
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http://www.devhood.com/tutorials/tutorial_details.aspx?tutorial_id=95
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| | [No title] |
| | fields are necessary we should ask a few questions of our database. | | | But how does the 4NF contribute to database design and what are its drawbacks that support the above statment? | | | For example, my database would then look like the following. |
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http://www.devhood.com/tutorials/tutorial_details.aspx?tutorial_id=104
(702 words)
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| | Course Technology--InfoWeb: Normalization |
| | At The Software Developer's Handbook site (www.teleport.com/~bstonier/devhbook/databasedesign.html), you can read an article about normalization, which includes the rules of normalization and detailed examples illustrating how the rules are used. | | | Click to see a list of all Computer Concepts 4e InfoWebs. | | | Click to see a list of all Illustrated Computer Concepts InfoWebs. |
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http://www.cciw.com/content/normalization.html
(129 words)
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| | Database Normalization Guides - Webmaster Forum |
| | A typical interview question for a software developer used to be "What is 3rd form normalization?". | | | Yeah, most places I have read and other people in the industry say 3 is the most common. |
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http://www.v7n.com/forums/coding-forum/28402-database-normalization-guides.html#post294651
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| | An Introduction to Database Normalization (part 2) - Dev Shed |
| | I want to design a database for a videostore. | | | I was wondering why when you created your columns in your example project you showed a preference for the char type over the varchar? | | | Discuss An Introduction to Database Normalization (part 2) in the Development Articles forum on Dev Shed. |
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http://forums.devshed.com/development-articles-65/an-introduction-to-database-normalization-part-2t-63373.html
(511 words)
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| | Normalization - Wikipedia, the free encyclopedia |
| | Normalization property, used in Raymond's term rewriting systems | | | Normalization of a function (in general calculus) is the process of removing a discontinuty (or singularity). | | | Normalizing constant, used in mathematics, perhaps most often in probability theory |
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http://en.wikipedia.org/wiki/Normalization
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| | Database Normalization |
| | Issue: How do I design my database tables/objects so that: facts are stored one time only, may be combined without losing any data, and may be displayed without forcing users to view null or irrelevant data? | | | See also the Crystal Reports feature called "SubReports" |
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http://www.dynalivery.com/customersupport/faq/dbnormalization.html
(44 words)
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| | Database normalization starts with the keys |
| | Database normalization is a fundamental premise in database design because it removes ambiguous relationships between data, helping protect data integrity. | | | Delineation provides the basis for all Relational Database Management Systems (RDBMS) design. | | | During the design phase of database schema development, architects delineate entities (customers, invoices, products, etc.) and how these entities relate to one another. |
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http://builder.com.com/5100-6388-1050416.html
(336 words)
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| | searchOracle.com |
| | SearchSQLServer.com is dedicated to serving the information needs of database developers and administrators working with Microsoft's flagship database enterprise server: SQL Server and the upcoming Yukon release. | | | The site provides targeted news, expert advice, tips, search, learning guides, webcasts and research that cover all aspects of Windows-centric database design, development, administration and management. | | | In order to provide you with more focused Database resources, we've decided to merge SearchDatabase.com with several targeted sites in the TechTarget network. |
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http://searchoracle.techtarget.com/searchdatabase_redirect/0,295670,sid41,00.html
(203 words)
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| | Database Normalization |
| | Normalization is a process that serves to reduce, if not eliminate, these problems with data. | | | A poor database design can cripple an application, producing problems with redundancy, inaccuracy, consistency, and concurrency of your data. | | | A multi-valued attribute would contain more than one value for that field in each row. |
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http://www.serverwatch.com/tutorials/article.php/1549781
(301 words)
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