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Articles with tag Database Design Rss

Search for any content tagged database design

   Items 1 to 20 of 281    Older >>
 

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 2014/10/30 | Source: SQLServerCentral.com | Category: null
Rating: |  Discuss |   Briefcase | 11,166 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 2014/08/13 (first published: 2010/05/04) | Source: SQLServerCentral.com | Category: database design
Rating: |  Discuss |   Briefcase | 21,315 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: Red-Gate | Category: tips
Rating:  Rate this |   Briefcase | 15,659 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: Red-Gate | Category: tips
Rating:  Rate this |   Briefcase | 15,659 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 | 22,034 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 | 13,372 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 | 16,256 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 | 18,067 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 2014/08/13 (first published: 2010/05/04) | Source: SQLServerCentral.com | Category: database design
Rating: |  Discuss |   Briefcase | 21,315 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 | 32,294 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 | 25,033 reads

Designing Databases for Rapid Resilience

As the volume of data increases, DBAs need to plan more actively for rapid restores in the event of failure. For this, the intelligent use of filegroups is important, particularly when the Enterprise Edition of SQL Server offers the hope of online restores. How, though, should you arrange your data on the different filegroups? What happenens if the primary filegroup gets corrupted? Why backup and restore indexes?  Read more...
By Additional Articles 2012/11/13 | Source: SimpleTalk | Category: resilience
Rating:  Rate this |   Briefcase | 2,332 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 | 32,294 reads

Physical Database Design Consideration

There are lots of things to think about when you design a physical database. What data types should I use? What column is appropriate for the primary key? Are there particular indexes that I should use to improve performance? How should I implement data integrity rules? This list goes on and on. In this article Greg Larsen will be exploring different physical database design elements.  Read more...
By Additional Articles 2012/01/24 | Source: Database Journal | Category: database design
Rating: (not yet rated)  Rate this |   Briefcase | 3,272 reads

Constraints and the Test-Driven Database

Bad data always seems to appear when, and where, one least expects it. Sam explains the great value of a defensive approach based on constraints to any team that is developing an application in which the data has to be exactly right, and where bad data could cause consequential severe financial damage. It is perhaps better seen as creating a test-driven database.  Read more...
By Additional Articles 2012/01/09 | Source: SimpleTalk | Category: database design
Rating: (not yet rated)  Rate this |   Briefcase | 1,920 reads

Stairway to Database Design Level 9: Normalization

In the final step of Database Design, Joe Celko gives a simple but effective explanation of the normalization process and why it is important.  Read more...
By Joe Celko 2011/11/11 | Source: SQLServerCentral.com | Category: stairway series
Rating: |  Discuss |   Briefcase | 10,098 reads

Stairway to T-SQL DML Level 3: Implementing a Relational Model in SQL Server

This level of the stairway details the creation of a relational database, as well as filling in some of the history of the relational database model.  Read more...
By Gregory Larsen 2011/11/09 | Source: SQLServerCentral.com | Category: stairway series
Rating: |  Discuss |   Briefcase | 9,224 reads

Stairway to Database Design Level 8: Cursors

This final level to the first landing completes the basics of a SQL database, by explaining what cursors are and why you should never use them.   Read more...
By Joe Celko 2011/11/02 | Source: SQLServerCentral.com | Category: stairway series
Rating: |  Discuss |   Briefcase | 7,973 reads

PASS Data Architecture Virtual Chapter presents Characteristics of a Great Relational Database

On Thursday October 20th ,MVP Louis Davidson will discuss the why normalized databases are the most important part of query tuning  Read more...
By Press Release 2011/10/20 | Source: SQLServerCentral.com | Category: webinar
Rating: (not yet rated)  Rate this |   Briefcase | 1,275 reads

Stairway to Database Design Level 7: Triggers

In levels one to four, we built the tables, base and virtual, of a schema. Levels five and six dealt with stored procedures. This level deals with a feature you need to avoid as much as possible; this is article is on Triggers.  Read more...
By Joe Celko 2011/09/30 | Category: stairway series
Rating: |  Discuss |   Briefcase | 9,009 reads
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