Interested to Buy Any Domain ? << Click Here >> for more details...
Answer Posted / hannan oca
primary key =notnull+unique value in column
a table consist of only one primary key.
Example
a primary key is like a father in house, like only one but
there may be a lot of childs just like columns.
| Is This Answer Correct ? | 3 Yes | 1 No |
Post New Answer View All Answers
Why is theta join required?
Explain the update statement in sql
How run sql*plus commands that are stored in a local file?
Which language is used in sql?
What is a table partition?
what is oracle database ? : Sql dba
What is the meaning of disabling a trigger?
Why truncate is used in sql?
What is difference between primary and secondary key?
Can we rollback truncate?
what is the difference between truncate and drop statements? : Sql dba
what is 'mysqlshow'? : Sql dba
Show the cursor attributes of pl/sql.
What problem one might face while writing log information to a data-base table in pl/sql?
How to create your own reports in sql developer?
