• Home
  • About
    • IT Nursery
    • Price Plan Style
    • Testimonials Style
    • FAQ’s
  • Portfolio Filter
  • Services
    • All Services
    • Business Consulting
    • Finance Report
    • Assets Mangement
    • Smart Manufacturing
    • Life Insurance
    • Tax & Order Making
  • News
  • Contact
IT Nursery

Expert WordPress Theme Developer. Can developing websites by using Elementor, divi and Visual Composer. Provide 100% guarantee on the quality and reliability of the code.

  • (+880) 1676299226
  • info@itnursery.com
  • Office Hour: 8AM - 11PM
    • About
    • About Us
    • Assets Mangement
    • Business Consulting
    • Call To Action Style
    • Contact
    • Counter Style
    • FAQ’s
    • Finance Report
    • Heading Style
    • Home
    • Home Five
    • Home Four
    • Home Seven
    • Home Six
    • Home Three
    • Home Two
    • Life Insurance
    • News
    • Portfolio Filter
    • Portfolio Grid Style
    • Portfolio Grid Style 1
    • Portfolio Grid Style 2
    • Portfolio Slider Style
    • Price Plan Style
    • Privacy Policy
    • Sample Page
    • Services
    • Services Style
    • Smart Manufacturing
    • Tax & Order Making
    • Team Filter Style
    • Team Grid Style
    • Testimonials Style
  • info@itnursery.com
  • (880) 1911-024205
IT Nursery
IT Nursery
  • 1010 Avenue of the Moon
    New York, NY 10018 US.
  • Mon - Sat 8.00 - 18.00
    Sunday: Closed
  • Get A Quote
IT Nursery
  • Home
  • About
    • IT Nursery
    • Price Plan Style
    • Testimonials Style
    • FAQ’s
  • Portfolio Filter
  • Services
    • All Services
    • Business Consulting
    • Finance Report
    • Assets Mangement
    • Smart Manufacturing
    • Life Insurance
    • Tax & Order Making
  • News
  • Contact
IT Nursery > News > primary-key

primary-key

Database, Programming
IT Nursery

Surrogate vs. natural/business keys [closed]

Closed. This question is opinion-based. It is not currently accepting answers. Want to improve this question? Update the question so it can be ...
  • June 3, 2022
  • 0 Comments
MySQL, Programming
IT Nursery

Is there a REAL performance difference between INT and VARCHAR primary keys?

Is there a measurable performance difference between using INT vs. VARCHAR as a primary key in MySQL? I’d like to use VARCHAR as ...
  • May 31, 2022
  • 0 Comments
Programming, sql
IT Nursery

Strings as Primary Keys in SQL Database [closed]

Closed. This question needs details or clarity. It is not currently accepting answers. Want to improve this question? Add details and clarify the ...
  • May 30, 2022
  • 0 Comments
MySQL, Programming
IT Nursery

Remove Primary Key in MySQL

I have the following table schema which maps user_customers to permissions on a live MySQL database: mysql> describe user_customer_permission; +------------------+---------+------+-----+---------+----------------+ | Field | ...
  • May 29, 2022
  • 0 Comments
MySQL, Programming
IT Nursery

How to properly create composite primary keys – MYSQL

Here is a gross oversimplification of an intense setup I am working with. table_1 and table_2 both have auto-increment surrogate primary keys as ...
  • May 28, 2022
  • 0 Comments
MySQL, Programming
IT Nursery

ALTER TABLE to add a composite primary key

I have a table called provider. I have three columns called person, place, thing. There can be duplicate persons, duplicate places, and duplicate ...
  • May 28, 2022
  • 0 Comments

Add primary key to existing table

I have an existing table called Persion. In this table I have 5 columns: persionId Pname PMid Pdescription Pamt When I created this ...
  • May 24, 2022
  • 0 Comments

Django queries – id vs pk

When writing django queries one can use both id/pk as query parameters. Object.objects.get(id=1) Object.objects.get(pk=1) I know that pk stands for Primary Key and ...
  • May 22, 2022
  • 0 Comments

How to add an auto-incrementing primary key to an existing table, in PostgreSQL?

I have a table with existing data. Is there a way to add a primary key without deleting and re-creating the table? 5 ...
  • May 22, 2022
  • 0 Comments

Difference between Key, Primary Key, Unique Key and Index in MySQL

When should I use KEY, PRIMARY KEY, UNIQUE KEY and INDEX? 8 Answers 8
  • May 19, 2022
  • 0 Comments

Posts pagination

1 2 Next

Recent Posts

  • INSTALL_FAILED_DUPLICATE_PERMISSION… C2D_MESSAGE
  • How to sort by meta value?
  • WPF text Wrap vs WrapWithOverflow
  • How to retrieve the list of all posts ever published via the feed?
  • how to use javascript Object.defineProperty

android c categories CSS custom-post-types custom-taxonomy customization database functions git HTML images java javascript jQuery multisite MySQL php plugin-development plugins posts python string theme-development wp-query

Important Tag

.net admin ajax android arrays bash c categories comments CSS custom-field custom-post-types custom-taxonomy customization database filters functions git hooks HTML images ios java javascript jQuery menus multisite MySQL node.js permalinks php plugin-development plugins posts python Shortcode sql string theme-development themes uploads users woocommerce-offtopic wp-admin wp-query

Search Here

Popular News

INSTALL_FAILED_DUPLICATE_PERMISSION… C2D_MESSAGE June 4, 2022
How to sort by meta value? June 4, 2022
WPF text Wrap vs WrapWithOverflow June 4, 2022
How to retrieve the list of all posts ever published via the feed? June 4, 2022
how to use javascript Object.defineProperty June 4, 2022

Categories

  • .htaccess (5)
  • .net (145)
  • .net-4.0 (2)
  • .net-core (2)
  • .net-core-configuration (1)
  • 64-bit (1)
  • abi (1)
  • access-modifiers (1)
  • accessibility (1)
  • actionscript-3 (1)
  • active-directory (2)
  • adsense (1)
  • agile (1)
  • ajax (22)
  • algorithm (88)
  • amazon-ec2 (4)
  • amazon-web-services (39)
  • anaconda (2)
  • android (1,061)
  • android-dialogfragment (1)
  • android-emulator (3)
  • android-studio (35)
  • android-xml (1)
  • angular (139)
  • angular-cli (3)
  • angular6 (1)
  • angularjs (109)
  • angularjs-timeout (1)
  • animation (1)
  • ansible (7)
  • ant (1)
  • aop (1)
  • apache (19)
  • apache-flex (1)
  • apache-kafka (4)
  • apache-spark (6)
  • apache-zookeeper (1)
  • api (1)
  • apple-touch-icon (1)
  • architecture (13)
  • archive (1)
  • arrays (49)
  • artificial-intelligence (2)
  • asp-classic (1)
  • ASP.NET (77)
  • asp.net-core (3)
  • asp.net-mvc (60)
  • asp.net-mvc-2 (1)
  • asp.net-mvc-3 (6)
  • asp.net-mvc-4 (2)
  • asp.net-web-api (3)
  • assembly (6)
  • asynchronous (3)
  • atom-editor (1)
  • audio (2)
  • authentication (15)
  • autocomplete (2)
  • avd (1)
  • avmutableaudiomixinputparameters (1)
  • awk (4)
  • axios (2)
  • azure (3)
  • azure-web-roles (1)
  • backup (1)
  • base64 (2)
  • bash (358)
  • basic-authentication (1)
  • batch-file (23)
  • benchmarking (1)
  • big-o (1)
  • binary (2)
  • binary-tree (1)
  • bitbucket (1)
  • bluetooth (1)
  • bootstrap-4 (2)
  • bootstrapping (1)
  • bower (1)
  • branch (1)
  • branch-prediction (1)
  • Browser (7)
  • buffer (1)
  • build (3)
  • Business (3)
  • button (1)
  • C (219)
  • C# (1,430)
  • c#-4.0 (1)
  • C++ (676)
  • c++11 (2)
  • caching (3)
  • callback (1)
  • callstack (1)
  • captcha (1)
  • cassandra (1)
  • casting (1)
  • centos (2)
  • certificate (3)
  • cgi (1)
  • character-encoding (3)
  • chart.js (1)
  • checkbox (1)
  • class (4)
  • classpath (1)
  • client-server (1)
  • clojure (1)
  • cloud (1)
  • cmake (8)
  • cmd (1)
  • cocoa (8)
  • cocoa-touch (2)
  • cocoapods (1)
  • code-formatting (2)
  • coding-style (2)
  • collections (3)
  • colors (4)
  • comet (1)
  • command (1)
  • command-line (14)
  • comments (4)
  • common-lisp (1)
  • compare (1)
  • compilation (1)
  • compilationunit (1)
  • compiler-construction (4)
  • compiler-theory (1)
  • composer-php (2)
  • compression (3)
  • computer-science (2)
  • concurrency (4)
  • conditional-operator (1)
  • configuration (6)
  • confluence (1)
  • constants (1)
  • Consulting (1)
  • content-security-policy (1)
  • continuous-integration (2)
  • cookies (5)
  • copy (1)
  • cordova (4)
  • cors (2)
  • cpu (1)
  • cpu-architecture (1)
  • cqrs (1)
  • cron (2)
  • crontab (1)
  • cross-browser (1)
  • cryptography (1)
  • csrf (1)
  • CSS (382)
  • css-float (1)
  • css-selectors (2)
  • csv (5)
  • cuda (7)
  • curl (14)
  • custom-installation (1)
  • cx-oracle (1)
  • cygwin (2)
  • dapper (1)
  • dart (9)
  • data-oriented-design (1)
  • data-structures (4)
  • Database (63)
  • database-design (4)
  • dataframe (1)
  • datatable (1)
  • date (5)
  • datetime (9)
  • debian (2)
  • debugging (14)
  • default (1)
  • dependency-injection (4)
  • deployment (2)
  • design-patterns (26)
  • dictionary (10)
  • didselectrowatindexpath (1)
  • digital-signature (1)
  • directory (1)
  • django (62)
  • dll (2)
  • dns (4)
  • docker (160)
  • docker-compose (2)
  • dockerfile (1)
  • documentation (1)
  • domain-driven-design (3)
  • dos (1)
  • download (3)
  • duplicates (1)
  • dynamic-programming (2)
  • eclipse (66)
  • ecmascript-6 (1)
  • editor (5)
  • elasticsearch (10)
  • elisp (1)
  • elixir (1)
  • emacs (9)
  • email (8)
  • embedded-fonts (1)
  • ember.js (1)
  • emulation (1)
  • encoding (4)
  • encryption (4)
  • entity-framework (12)
  • entity-framework-4 (1)
  • entity-framework-core (1)
  • enums (2)
  • environment-variables (1)
  • erlang (2)
  • error-handling (1)
  • escaping (1)
  • eslint (2)
  • events (1)
  • excel (22)
  • excel-2007 (1)
  • exception (6)
  • exception-handling (1)
  • express (2)
  • facebook (9)
  • factory-pattern (1)
  • favicon (5)
  • ffmpeg (7)
  • fiddler (1)
  • file (20)
  • file-extension (1)
  • file-io (2)
  • filesystems (1)
  • Finance (1)
  • find (1)
  • firebase (7)
  • fish (1)
  • fixtures (1)
  • flash (2)
  • flexbox (1)
  • floating-point (4)
  • flutter (47)
  • font-size (1)
  • fonts (7)
  • for-loop (3)
  • foreach (1)
  • form-submit (1)
  • formatting (4)
  • forms (11)
  • frameworks (3)
  • function (10)
  • functional-programming (10)
  • g++ (1)
  • garbage-collection (1)
  • gcc (12)
  • gdata (1)
  • gdb (6)
  • gem (1)
  • generics (2)
  • geolocation (1)
  • geometry (2)
  • git (1,216)
  • git-bash (1)
  • git-branch (1)
  • git-commit (1)
  • git-merge (1)
  • github (57)
  • github-actions (1)
  • gitlab (4)
  • gnuplot (1)
  • go (47)
  • Google (6)
  • google-analytics (5)
  • google-api (3)
  • google-app-engine (2)
  • google-chrome (46)
  • google-chrome-devtools (1)
  • google-cloud-platform (2)
  • google-drive-api (1)
  • google-maps (5)
  • google-maps-api-3 (1)
  • google-play-services (1)
  • google-search (1)
  • google-sheets (5)
  • google-voice (1)
  • gradle (9)
  • graphics (2)
  • graphviz (1)
  • grep (7)
  • groovy (5)
  • gruntjs (1)
  • guid (2)
  • gulp (2)
  • gunicorn (1)
  • gzip (1)
  • hadoop (3)
  • handlebars.js (2)
  • hash (5)
  • haskell (28)
  • heroku (5)
  • hibernate (3)
  • homebrew (8)
  • hook (1)
  • HTML (22)
  • HTML (600)
  • html-lists (1)
  • html5-video (1)
  • http (75)
  • http-headers (7)
  • http-post (1)
  • https (3)
  • hungarian-notation (1)
  • icons (3)
  • ide (5)
  • if-statement (4)
  • iframe (2)
  • iis (5)
  • iis-7 (1)
  • iis-express (1)
  • image (16)
  • image-processing (4)
  • imagemagick (1)
  • imagenet (1)
  • import (3)
  • indentation (1)
  • indexing (1)
  • inheritance (3)
  • innovation (1)
  • installation (3)
  • integer (2)
  • intellij-idea (30)
  • intellisense (1)
  • internet-explorer (6)
  • internet-explorer-8 (1)
  • internet-explorer-9 (1)
  • ionic-framework (1)
  • ios (515)
  • ios7 (1)
  • ios8 (1)
  • ip (2)
  • iphone (54)
  • ipython (4)
  • iterm (2)
  • jackson (1)
  • jakarta-ee (1)
  • Java (3,354)
  • Java Script (3)
  • javafx (1)
  • javascript (2,578)
  • jenkins (11)
  • jestjs (5)
  • jinja2 (2)
  • jira (1)
  • jms (2)
  • jndi (1)
  • jpa (1)
  • jquery (279)
  • jquery-plugins (1)
  • jquery-ui (1)
  • jquery-validate (1)
  • jsf (6)
  • jshint (1)
  • json (80)
  • jsp (5)
  • junit (1)
  • jupyter-notebook (1)
  • jwt (1)
  • keyboard (2)
  • keyboard-shortcuts (4)
  • keystore (2)
  • keytool (1)
  • kotlin (15)
  • kubernetes (13)
  • lambda (1)
  • language-agnostic (36)
  • laravel (21)
  • latex (8)
  • layout (2)
  • licensing (1)
  • line-breaks (1)
  • linq (9)
  • linq-to-sql (3)
  • lint (1)
  • linux (338)
  • lisp (1)
  • list (6)
  • listview (1)
  • localhost (3)
  • localization (1)
  • log4j (1)
  • log4net (1)
  • logging (9)
  • logic (1)
  • loops (3)
  • lua (1)
  • lvm (1)
  • machine-learning (10)
  • macos (90)
  • macros (1)
  • magic-numbers (1)
  • makefile (21)
  • malloc (1)
  • mapreduce (1)
  • markdown (17)
  • math (11)
  • matlab (5)
  • matplotlib (3)
  • maven (24)
  • maven-2 (9)
  • memory (2)
  • memory-management (2)
  • mercurial (9)
  • merge (1)
  • methodology (1)
  • mime-types (2)
  • mocha.js (1)
  • model-view-controller (2)
  • momentjs (1)
  • mongodb (66)
  • mousewheel (1)
  • ms-word (1)
  • msbuild (2)
  • multipartform-data (1)
  • multithreading (19)
  • mvvm (1)
  • MySQL (378)
  • mysqldump (1)
  • naming-conventions (2)
  • networking (11)
  • neural-network (1)
  • newline (2)
  • nginx (14)
  • nhibernate (1)
  • node-webkit (1)
  • node.js (292)
  • nosql (3)
  • notepad++ (9)
  • npm (15)
  • nsstring (2)
  • nuget (5)
  • nullable (1)
  • numbers (1)
  • oauth (6)
  • oauth-2.0 (1)
  • objective-c (104)
  • odbc (1)
  • oop (28)
  • open-source (1)
  • opengl (3)
  • openssl (5)
  • operating-system (2)
  • operators (1)
  • optimization (4)
  • oracle (12)
  • orm (1)
  • out-of-memory (1)
  • outlook (1)
  • overflow (2)
  • package (1)
  • pandas (2)
  • parallel-processing (1)
  • parameters (3)
  • parsing (1)
  • path (5)
  • pdf (6)
  • perforce (1)
  • performance (25)
  • perl (13)
  • permissions (2)
  • PHP (584)
  • phpmyadmin (1)
  • pip (1)
  • pipenv (1)
  • playframework (1)
  • plot (1)
  • png (1)
  • podcast (1)
  • pointers (2)
  • port (1)
  • post (5)
  • postgresql (86)
  • powershell (51)
  • process (1)
  • Programming (21,581)
  • programming-languages (10)
  • properties (2)
  • protocol-buffers (2)
  • proxy (2)
  • pthreads (1)
  • pycharm (1)
  • Python (2,549)
  • python-3.x (1)
  • qt (2)
  • r (169)
  • rabbitmq (2)
  • random (4)
  • razor (1)
  • rdf (1)
  • react-native (7)
  • react-router-v4 (1)
  • reactjs (84)
  • realm (1)
  • recursion (2)
  • redirect (3)
  • redis (14)
  • reference (1)
  • regex (100)
  • replace (2)
  • request (1)
  • require (1)
  • requirejs (1)
  • requirements (1)
  • resources (2)
  • rest (34)
  • rsync (3)
  • ruby (182)
  • ruby-on-rails (181)
  • ruby-on-rails-3 (6)
  • ruby-on-rails-3.1 (1)
  • rubygems (1)
  • rust (13)
  • rxjs (2)
  • sass (3)
  • sbt (1)
  • scala (49)
  • scheduled-tasks (1)
  • scheme (1)
  • scope (1)
  • scripting (7)
  • scroll (2)
  • sdk (1)
  • search (7)
  • security (32)
  • sed (5)
  • select (1)
  • selenium (5)
  • selenium-webdriver (1)
  • seo (2)
  • serialization (2)
  • server (1)
  • server-side (1)
  • service (1)
  • servicestack (1)
  • servlets (1)
  • session (4)
  • sftp (1)
  • sh (2)
  • share (1)
  • shell (50)
  • signals (1)
  • soa (1)
  • sockets (6)
  • software-distribution (1)
  • solr (1)
  • sonarqube (1)
  • sorting (1)
  • special-characters (1)
  • spring (22)
  • spring-boot (1)
  • spring-mvc (1)
  • sql (446)
  • sql-server (157)
  • sql-server-2005 (2)
  • sql-server-2008 (5)
  • sql-server-2012 (1)
  • sqlite (21)
  • ssh (20)
  • ssh-keys (1)
  • ssl (8)
  • ssms (2)
  • stack-trace (1)
  • statistics (1)
  • string (61)
  • string-formatting (1)
  • struct (1)
  • subdomain (1)
  • sublimetext (5)
  • sublimetext2 (10)
  • sublimetext3 (1)
  • svg (7)
  • svn (42)
  • swift (74)
  • swift2 (1)
  • swiftui (1)
  • swing (3)
  • symfony (6)
  • synchronization (1)
  • syntax (6)
  • syntax-highlighting (1)
  • tabs (3)
  • task (1)
  • tcp (3)
  • telegram (1)
  • tensorflow (6)
  • terminal (6)
  • terminology (9)
  • testing (8)
  • text (6)
  • text-files (1)
  • text-processing (1)
  • tfs (4)
  • themes (3)
  • theory (2)
  • time (1)
  • time-complexity (1)
  • timezone (1)
  • tmux (5)
  • tomcat8 (1)
  • travis-ci (2)
  • tsql (6)
  • turtle-graphics (1)
  • Tutorial (18)
  • twig (1)
  • twitter (1)
  • twitter-bootstrap (21)
  • twitter-bootstrap-3 (2)
  • type-safety (1)
  • types (4)
  • typescript (97)
  • ubuntu (21)
  • ubuntu-16.04 (1)
  • uiimage (1)
  • uikit (1)
  • uitableview (1)
  • uiview (1)
  • uml (3)
  • Uncategorized (11)
  • underscore.js (1)
  • undo (1)
  • unicode (10)
  • unit-testing (26)
  • unix (40)
  • upload (1)
  • url (11)
  • urlencode (1)
  • urllib (1)
  • user-agent (1)
  • user-interface (6)
  • utf-8 (1)
  • uuid (1)
  • vagrant (4)
  • validation (9)
  • variables (3)
  • vb.net (3)
  • vb6 (1)
  • vba (4)
  • vectorization (1)
  • version-control (11)
  • versioning (1)
  • vi (1)
  • video (6)
  • view (1)
  • vim (116)
  • virtual-machine (1)
  • virtualbox (3)
  • visual-c++ (3)
  • visual-studio (89)
  • visual-studio-2008 (1)
  • visual-studio-2010 (14)
  • visual-studio-2012 (4)
  • visual-studio-2013 (5)
  • visual-studio-2015 (4)
  • visual-studio-code (72)
  • vue.js (15)
  • wamp (1)
  • warnings (1)
  • wcf (8)
  • wcf-binding (1)
  • Web Programming (11)
  • web-applications (2)
  • web-services (13)
  • webpack (5)
  • webserver (1)
  • webservice-client (1)
  • websocket (2)
  • webstorm (1)
  • wget (2)
  • winapi (1)
  • window (1)
  • windows (168)
  • windows-7 (3)
  • windows-8 (1)
  • windows-server-2003 (1)
  • windows-server-2008 (1)
  • windows-services (5)
  • windows-vista (1)
  • wireshark (1)
  • wix (1)
  • WordPress (22,083)
  • wpf (31)
  • x509 (1)
  • x86 (2)
  • xaml (2)
  • xargs (1)
  • xcode (62)
  • xcode4 (1)
  • xml (37)
  • xml-parsing (1)
  • xna (1)
  • xpath (3)
  • xslt (4)
  • yaml (5)
  • yarnpkg (2)
  • youtube (1)
  • zsh (2)

Tags

.net admin ajax android arrays bash c categories comments CSS custom-field custom-post-types custom-taxonomy customization database filters functions git hooks HTML images ios java javascript jQuery menus multisite MySQL node.js permalinks php plugin-development plugins posts python Shortcode sql string theme-development themes uploads users woocommerce-offtopic wp-admin wp-query
IT Nursery

About IT Nursery

Expert WordPress Theme Developer. Can developing websites by using Elementor, divi and Visual Composer. Provide 100% guarantee on the quality and reliability of the code.

Our Services

  • Business Consulting
  • Finance Report
  • Life Insurance
  • Tax & Order Making
  • Assets Mangement

Get In Touch

  • (+880) 1911-024205
  • info@itnursery.com
  • Office Hour: 8AM - 11PM

Subscribe Now

    IT Nursery - 2025