Webopedia on Google+Webopedia on TwitterWebopedia on FacebookTech Bytes Blog
Main » TERM » Q »

query

(n.) A request for information from a database. There are three general methods for posing queries:

  • Choosing parameters from a menu: In this method, the database system presents a list of parameters from which you can choose. This is perhaps the easiest way to pose a query because the menus guide you, but it is also the least flexible.
  • Query by example (QBE): In this method, the system presents a blank record and lets you specify the fields and values that define the query.
  • Query language: Many database systems require you to make requests for information in the form of a stylized query that must be written in a special query language. This is the most complex method because it forces you to learn a specialized language, but it is also the most powerful.
  • (v.) To make a request for information from a database.

     







    TECH RESOURCES FROM OUR PARTNERS
    DID YOU KNOW?
    The Great Data Storage Debate: Is Tape Dead?

    Tape clearly is on the decline. But remember, legacy systems can hang for a shockingly long time. Read More »

    Apple Pay Promises to Strengthen Payment Security

    Experts believe that Apple Pay and other competitive payment systems will be far more secure than cards, even cards equipped with EMV chips. Read More »

    Internet of Things Shaping IT's Future

    To make the IoT both work and pay off, IT is juggling upgrading and building app-centric networks, mapping out new data center architectures and... Read More »

    QUICK REFERENCE
    Webopedia Polls

    The trend for the past two years has been for shoppers to spend more online during the holiday season. How do you typically shop for holiday... Read More »

    How to Create a Desktop Shortcut to a Website

    This Webopedia guide will show you how to create a desktop shortcut to a website using Firefox, Chrome or Internet Explorer (IE). Read More »

    Flash Data Storage Vendor Trends

    Although it is almost impossible to keep up with the pace of ongoing product releases, here are three recent highlights in the flash data storage... Read More »