Answer Posted / sudarsan
Primary key is a unique id for each table. This prevents
duplication of records. Each table can have a single
primary key. They can be refrenced by any tables as a
foreign key.
| Is This Answer Correct ? | 4 Yes | 0 No |
Post New Answer View All Answers
Can we write trigger for view?
What are dml (data manipulation language) statements in ms sql server?
Explain the disadvantages of cursors?
How does index makes search faster?
How to list all columns in a table using odbc_columns()?
How to create and drop temp table in sql server?
What is an example of a foreign key?
How to verify a login name with sqlcmd tool?
What is the usage of the sign function?
Mention the differences between sql server and mysql.
What is 3nf normalization form?
What is a periodical index?
Your table has a large character field there are queries that use this field in their search clause what should you do?
How are the exceptions handled in sql server programming?
What are xml indexes?
