Interested to Buy Any Domain ? << Click Here >> for more details...
WHAT IS THE DIFFERENCE BETWEEN CANDIDATE KEY ,COMPOSITE KEY
AND PRIMARY KEY.
THAN U.
- 1 Answers
- 6276 Views
- Synergy, I also Faced
- E-Mail Answers
Answer / sakthi
Primary key:
It is an unique identifier, it wont allow null value, in a
table there will be only one column as primary key.
Composite key:
It same as Primary key but combination of more that one
column.
| Is This Answer Correct ? | 14 Yes | 2 No |
How is table type constraint applied to a table?
How to declare and use cursor variables?
How to create a local temporary stored procedure?
Why use stored procedures in sql server?
How to manipulate data from one table to another table ?
what happens on checkpoint? : Sql server database administration
What is analysis service repository?
What are the different types of joins and what does each do?
What is mscorsvw.exe - process - microsoft .net framework ngen?
What is the difference between distinct clause and group by clause?
What are the components of sql server service broker?
What are subquery and its properties?
-
Oracle (3259) - SQL Server (4518)
- MS Access (429)
- MySQL (1402)
- Postgre (483)
- Sybase (267)
- DB Architecture (141)
- DB Administration (291)
- DB Development (113)
- SQL PLSQL (3330)
- MongoDB (502)
- IBM Informix (50)
- Neo4j (82)
- InfluxDB (0)
- Apache CouchDB (44)
- Firebird (5)
- Database Management (1411)
- Databases AllOther (288)
