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Content with tag Database Design Rss

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Defusing Database Time Bombs: Avoiding the Need to Refactor Databases

Where applications are evolved by gradually molding them to a growing understanding of the business domain, this presents great challenges to database development. If databases are designed too loosely, and initial errors are allowed to fester, the results become harder and harder to refactor until eventually they constitute a database time bomb. Thomas LeBlanc describes how to avoid a few basic, but very common, database time bombs.  Read more...
By Additional Articles 2015/03/13 | Source: SimpleTalk | Category: database design
Rating:  Rate this |   Briefcase | 8,811 reads

GUIDs GUIDs everywhere, but how is my data unique?

After having seen many systems that use GUIDs as the primary key for every table, it is time to say enough is enough.  Read more...
By Thomas Romeo 2014/12/18 | Source: SQLServerCentral.com | Category: guid
Rating: |  Discuss |   Briefcase | 7,807 reads

Database Design Follies: NULL vs. NOT NULL

It sounds simple enough. Either your column will always have a value or it may not. Yet somehow such a seemingly simple decision can become a never-ending debate where database schema begins to resemble superstition and designing effective tables seems more contentious than you expected it to be.  Read more...
By Edward Pollack 2016/02/26 (first published: 2014/10/30) | Source: SQLServerCentral.com | Category: null
Rating: |  Discuss |   Briefcase | 17,457 reads

Stairway to Database Design Level 2: Domains, Constraints and Defaults

A clear understanding of SQL Data Types and domains is a fundamental requirement for the Database Developer, but it is not elementary. If you select the most appropriate data type, it can sidestep a variety of errors. Furthermore, if you then define the data domains as exactly as possible via constraints, you can catch a variety of those problems that would otherwise bedevil the work of the application programmer.  Read more...
By Joe Celko 2016/06/01 (first published: 2010/05/04) | Source: SQLServerCentral.com | Category: database design
Rating: |  Discuss |   Briefcase | 25,919 reads

Is a Primary Key an index?

By Phil Factor 2014/07/16 | Category: database design
Rating: (not yet rated) |  Discuss |   Briefcase | 2,708 reads

It's Not All About The Keys

By Andy Warren 2014/04/14 | Category: foreign keys (fk)
Rating: (not yet rated) |  Discuss |   Briefcase | 2,240 reads

EAV

By Steve Jones 2014/01/06 | Category: database design
Rating: (not yet rated) |  Discuss |   Briefcase | 1,831 reads

Free eBook: 45 Database Performance Tips for Developers

As a developer, if you need to go into the database and write queries, design tables, or determine the configuration of your SQL Server Systems, these tips should help make sure you're not unnecessarily sacrificing database performance. This eBook has 45 easy tips to improve the performance of your indexes and T-SQL queries, and hunt down problems within ORM tools and database design.   Read more...
By Press Release 2014/01/02 (first published: 2013/11/04) | Source: Redgate | Category: tips
Rating:  Rate this |   Briefcase | 16,889 reads

Free eBook: 45 Database Performance Tips for Developers

As a developer, if you need to go into the database and write queries, design tables, or determine the configuration of your SQL Server Systems, these tips should help make sure you're not unnecessarily sacrificing database performance. This eBook has 45 easy tips to improve the performance of your indexes and T-SQL queries, and hunt down problems within ORM tools and database design.   Read more...
By Press Release 2014/01/02 (first published: 2013/11/04) | Source: Redgate | Category: tips
Rating:  Rate this |   Briefcase | 16,889 reads

Normalizing-Denormalized Tables

Explains how to normalize a table without breaking the application or doing any application code changes.  Read more...
By Mohit K. Gupta 2013/11/01 (first published: 2008/11/10) | Source: SQLServerCentral.com | Category: normalization
Rating: |  Discuss |   Briefcase | 22,156 reads

Disk Is Cheap! ORLY?

People often conclude that the cheap price of storage is a license to use as much as possible, but there is a cost.  Read more...
By Solomon Rutzky 2013/10/25 (first published: 2010/12/31) | Source: SQLServerCentral.com | Category: data-modeling
Rating: |  Discuss |   Briefcase | 13,632 reads

Stairway to Database Design Level 4: Building a Schema

Having described tables, Joe Celko explains how to make them work together as a database and touches on what Entity Relationships and Views are.  Read more...
By Joe Celko 2013/10/16 (first published: 2010/08/18) | Source: SQLServerCentral.com | Category: database design
Rating: |  Discuss |   Briefcase | 17,573 reads

Stairway to Database Design Level 3: Building Tables

There are several types of tables, each with their special requirements for rules and integrity constraints. Whatever the requirement, table-level constraints will ensure that the rules are enforced and data integrity is maintained.  Read more...
By Joe Celko 2013/09/18 (first published: 2010/05/25) | Source: SQLServerCentral.com | Category: stairway series
Rating: |  Discuss |   Briefcase | 19,804 reads

Stairway to Database Design Level 2: Domains, Constraints and Defaults

A clear understanding of SQL Data Types and domains is a fundamental requirement for the Database Developer, but it is not elementary. If you select the most appropriate data type, it can sidestep a variety of errors. Furthermore, if you then define the data domains as exactly as possible via constraints, you can catch a variety of those problems that would otherwise bedevil the work of the application programmer.  Read more...
By Joe Celko 2016/06/01 (first published: 2010/05/04) | Source: SQLServerCentral.com | Category: database design
Rating: |  Discuss |   Briefcase | 25,919 reads

Stairway to Database Design Level 1: Data Elements

Before you start to think about your database schema or tables, you need to consider your data: the type of data it is, the scale you use for values. It needs to be unique, precise and unambiguous. Then you need to name it in such a way that it can be generally understood. Joe Celko explains...  Read more...
By Joe Celko 2013/07/03 (first published: 2010/04/27) | Source: SQLServerCentral.com | Category: stairway series
Rating: |  Discuss |   Briefcase | 35,691 reads

Natural Born Killers (The series) – Day 2 Table Design

To those that don’t know me “Natural Born Killers (The Series)” sounds like a very strange choice for a SQL...  Read more...
By Richard Douglas 2013/06/21 | Source: SQLServerCentral.com | Category: blogs
Rating: (not yet rated) |  Discuss |   Briefcase | 2,650 reads

Natural Born Killers (The series) – Day 1 Statistics

To those that don’t know me “Natural Born Killers (The Series)” sounds like a very strange choice for a SQL...  Read more...
By Richard Douglas 2013/06/20 | Source: SQLServerCentral.com | Category: blogs
Rating: (not yet rated) |  Discuss |   Briefcase | 3,113 reads

Relational Model versus XML

By Luis Taveras 2013/01/24 | Category: database design
Rating: (not yet rated) |  Discuss |   Briefcase | 2,288 reads

An Introduction to Database Design

An introduction to database design for those people that might not understand what is involved.  Read more...
By Paul White 2013/01/11 (first published: 2011/01/18) | Source: SQLServerCentral.com | Category: database design
Rating: |  Discuss |   Briefcase | 25,565 reads
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