UNIQUE: UNIQUE Constraint enforces a column or set of columns to have unique values. If a column has a unique constraint, it means that particular column cannot have duplicate values in a table. Example : CREATE TABLE STUDENT( ROLL_NO INT NOT NULL, STU_NAME VARCHAR (35) NOT NULL UNIQUE, STU_AGE INT NOT NULL, STU_ADDRESS VARCHAR (35) UNIQUE, PRIMARY KEY (ROLL_NO) ); - Study24x7
Social learning Network
study24x7

Default error msg

Login

New to Study24x7 ? Join Now
Already have an account? Login
googlePlay app_img
DBMS
56 followers study24x7 16 Mar 2019 03:15 PM study24x7 study24x7

UNIQUE:
UNIQUE Constraint enforces a column or set of columns to have unique values. If a column has a unique constraint, it means that particular column cannot have duplicate values in a table.


Example :

CREATE TABLE STUDENT( ROLL_NO INT NOT NULL, STU_...

See more

Databases
Like Comment Share
study24x7
Write a comment
Related Questions
500+   more Questions to answer

Popular Courses

Database Design All Levels English By Dr S Srinath
Free SEO training: SEO for beginner... Beginners Level English By Digital Marketing - Learn SEO, PPC,...
English Beginners Level English By Study Anywhere
H.C. Verma Solution All Levels English By HC Verma FanClub
SSC CGL, CPO, CHSL, GD Comprehensiv... All Levels English By Topline Coaching 3,999 5,499 27% off
English Special Course for SSC CGL,... All Levels English By Topline Coaching 999 1,499 33% off
Online Free SSC Mock Tests All Levels English By Topline Coaching
FREE MOCK TEST FOR SSC CGL All Levels English By SSC Preparation Strategies & Study ...
G.S. Foundation Premium Course All Levels हिन्दी By RAU IAS COACHING 2,199 4,199 48% off
Featured Courses
Popular Pages

Featured Courses

Database Design All Levels English By Dr S Srinath
FREE
5.0
Free SEO training: SEO for beginners Beginners Level English By Digital Marketing - Learn SEO, PPC, SMO, SEM, Cont...
FREE
5.0
Free SEO Link Building Guide 2019 All Levels English By Digital Marketing - Learn SEO, PPC, SMO, SEM, Cont...
FREE
4.5
BESTSELLER
SSC CGL, CPO, CHSL, GD Comprehensive Course All Levels English By Topline Coaching 3,999 5.0
A Premium Course For English Special (All One Day ... All Levels English By Vivishka Learning and Test Series 999 5.0
G.S. Foundation Premium Course All Levels हिन्दी By RAU IAS COACHING 2,199 5.0
English Special Course for SSC CGL, CPO, GD All Levels English By Topline Coaching 999 5.0
Online Free SSC Mock Tests All Levels English By Topline Coaching
FREE
4.5
Math Special Course for SSC CGL, CPO, GD All Levels हिन्दी By Topline Coaching 999 5.0

Popular Pages

SAT (Scholastic Assessment Test)

18 followers

Study24x7

1218 followers

Henry Harvin

58 followers

CBSE Study Materials

83 followers

Digital Marketing - Learn SEO, PPC, SMO,...

756 followers

Defence

106 followers

UPSC & State PSC

1008 followers

SSC Preparation Strategies & Study Mater...

1541 followers

Banking/IRDA

265 followers

DEFENCE EXAM PREPARATION

22 followers

Get the App

Download the Study24x7 App, so you can connect and collaborate.

study24x7
study24x7
Most Related Articles