What is a tuple?

COBOL SQL Interview Questions

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What is a tuple?

A tuple is an instance of data within a relational database.

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Other Interview Questions

• Which RDMS objects can you change with the SQL ALTER statements?
• When can an insert of a new primary key value threaten referntial integrity?
• In what RDMS object does one first list column names ?
• We have a table with a CHARACTER data type field
• What is a view? Why use it ?
• Describe the elements of the SELECT query syntax?
• What is a foreign key?
• Can one add columns to a table after it has been defined?
• After a table is defined, can columns be removed ?
• What is meant by locking?
• More...