Number or float for primary key?

Published: 18 May 2004

From a performance point of view, is it recommended to use a number or a float (0 decimal) as primary key?
Many systems use surrogate primary keys whose values are generated by Oracle sequences; these are typically integers. If, however, your table contains a column of type FLOAT that is a candidate primary key, the use of the column as the primary key should not cause any noticeable performance degradation. As always, your best bet is to verify through testing.

Dig Deeper on Oracle database performance problems and tuning

SearchDataManagement

Isima emerges with bi(OS) converged data platform

Startup launches with the general availability of a converged platform that offers the promise of integrating multiple data ...

Subsurface event reveals what lies below the cloud data lake

Users at the Dremio-sponsored Subsurface virtual conference detail data lake efforts and trends, including the emerging Apache ...

Hasura Cloud launches GraphQL-as-a-service platform

Hasura made its GraphQL platform available as a managed service, enabling organizations to connect and query different data ...

SearchBusinessAnalytics

Why more employees need data literacy skills

Encouraging employees to learn data literacy skills can benefit any enterprise. Read on for some of the benefits and resources to...

20 top BI tools and how to choose the right one

To help you buy the right BI tool for your data analysis needs, here's a look at 20 leading technologies, the different types of ...

Python exploratory data analysis and why it's important

Exploratory data analysis is a key step to building the best models to gain insight from your data. Read on to see how Python can...

SearchSAP

ASUG/DSAG members like S/4HANA, but implementations still lag

S/4HANA is viewed positively by most SAP customers, according to a new survey of ASUG and DSAG members, but complexity of an S/...

Use Qualtrics surveys to boost employee engagement

SAP Qualtrics surveys may help uncover workforce sentiment so business and HR leaders can act on it and help improve employee ...

SAP floats Qualtrics IPO 2 years after acquisition

SAP's decision to spin off Qualtrics in an IPO will likely benefit both companies, analysts said.

SearchSQLServer

SQL Server database design best practices and tips for DBAs

Good database design is a must to meet processing needs in SQL Server systems. In a webinar, consultant Koen Verbeeck offered ...

SQL Server in Azure database choices and what they offer users

SQL Server databases can be moved to the Azure cloud in several different ways. Here's what you'll get from each of the options ...

Using a LEFT OUTER JOIN vs. RIGHT OUTER JOIN in SQL

In this book excerpt, you'll learn LEFT OUTER JOIN vs. RIGHT OUTER JOIN techniques and find various examples for creating SQL ...

TheServerSide.com

Reduced cost, responsive apps from micro front-end architecture

Micro front-end development has grown in prominence though has not yet found its footing in the enterprise. Learn more about ...

How Quarkus fits into the Red Hat Runtimes formula

Faster microservices runtimes are the center of the excitement around Quarkus. Hear what Red Hat's James Falkner thinks about the...

3 ways a volunteer programmer can help in a pandemic

DevOps pros can help local and state agencies battle COVID-19. Here are three ways they can volunteer their time during a ...

SearchDataCenter

A mechanical refrigeration system primer for admins

Mechanical cooling is a necessity to keep data centers efficient year-round. The system type you use depends on the refrigerant, ...

Red Hat Enterprise Linux 8.3 beta released

The latest beta of Red Hat Enterprise Linux has new System Roles for logging and environmental metrics, along with improvements ...

Data center power terms to give your vocab a jolt

No matter the data center setup, there are standardized power components and protocols you should know. Build your understanding ...

SearchContentManagement

Consider these electronic signature best practices

Some tips to think about when creating an e-signing process include cataloging documents requiring signatures, building user ...

What the CCPA means for content security

Now that the CCPA is in full effect, businesses must adjust their processes to better protect content. Organizations should ...

Microsoft Lists app replaces some SharePoint functionality

A new Microsoft application will be accessible via Teams. It features list templates, multiple lists views and out-of-box ...

SearchHRSoftware

The HR software buying team: Roles, responsibilities, tips

Choosing the right HR software requires teamwork and forethought. Here's a look at which people to include in the evaluation and ...

Congress explores pros, cons of remote work trends

Remote work trends in the private sector are getting fresh attention from U.S. lawmakers. Two hearings last week looked at ...

How to measure employee experience and satisfaction

Employee surveys are a must-have, but you can find employee experience metrics in all sorts of places -- some right under your ...

Dig Deeper on Oracle database performance problems and tuning

Improve querying with Redshift, MySQL database replication options

SQL CONSTRAINT clauses: FOREIGN KEY, CHECK and DEFAULT

SQL CONSTRAINT clauses: PRIMARY KEY and UNIQUE

Set database constraints using SQL Server Management Studio Table Designer

Start the conversation

0 comments

Register

Login

Forgot your password?

Your password has been sent to:

Please create a username to comment.