Interested to Buy Any Domain ? << Click Here >> for more details...
what is primary key,unique key, foreign key? can u teach me
in simple language?
- 44 Answers
- 187575 Views
- Banking, CMC, CTS, HCL, Infosys, Keggfarms, SkyEss, Sunrise, TCS, Web Synergies, Wipro, I also Faced
- E-Mail Answers
Answer Posted / heena verma
Primary Key:- it is a contraint(checks) provided by DBMS.
if we want to make a coumn unique and not null then the
column is defined as primary key. it is used to create
relations among the tables.
| Is This Answer Correct ? | 55 Yes | 43 No |
Post New Answer View All Answers
What are database connection details?
What is ole db provider for sql server?
Define stored procedure?
What is the database url?
what is data access layer?
What are the advantages of using database?
What is a Database?
Display the employees whose salary is less than average salary.
how can you perform lookup range in lookup stage expalin in detail?
How is image stored in database?
Explain artificial key?
Can we use redis as database?
List the properties of a transaction.
can i use the commands "modify" and Change in DB2 to alter my column datatype and its name in a table?
What is ole db used for?
