A Column or set of Columns that uniquely identify all the rows in a table

wahts is mean by primary key and unique key?

Question Posted / bhausaheb.chate

Answer Posted / bhausaheb.chate

A Column or set of Columns that uniquely identify all the
rows in a table .......

Is This Answer Correct ?

3 Yes

6 No

Please Help Members By Posting Answers For Below Questions

What are the main components of JDBC ?

1052

What does it mean to "materialize" data?

978

What is the difference between execute, executeQuery, executeUpdate?

1013

What is url in jdbc connection?

939

What is an advantage of using the jdbc connection pool?

860

Explain about the drive manager class working?

1091

What is difference between java.util.Date and java.sql.Date?

1092

What does the jdbc driver interface do?

978

What are the jdbc drivers in java?

1051

What is a merge field?

916

How can I instantiate and load a new CachedRowSet object from a non-JDBC source?

973

How data can be inserted into long row column of database?

2137

What is jdbc class forname?

954

Jdbc-odbc bridge is multi-threaded or not?

948

Can I get a null resultset?

997