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- Question
The SQL keyword GROUP BY instructs the DBMS to group together those rows that have the same value in a column.
Options- A. True
- B. False
- Correct Answer
- True
- 1. The rows of the result relation produced by a SELECT statement can be sorted, but only by one column.
Options- A. True
- B. False Discuss
- 2. The result of every SQL query is a table.
Options- A. True
- B. False Discuss
- 3. The ADD command is used to enter one row of data or to add multiple rows as a result of a query.
Options- A. True
- B. False Discuss
- 4. There is an equivalent join expression that can be substituted for all subquery expressions.
Options- A. True
- B. False Discuss
- 5. The qualifier DISTINCT must be used in an SQL statement when we want to eliminate duplicate rows.
Options- A. True
- B. False Discuss
- 6. ORDER BY can be combined with the SELECT statements.
Options- A. True
- B. False Discuss
- 7. Each index consumes extra storage space and also requires overhead maintenance time whenever indexed data change value.
Options- A. True
- B. False Discuss
- 8. To establish a range of values, < and > can be used.
Options- A. True
- B. False Discuss
- 9. SQL provides the AS keyword, which can be used to assign meaningful column names to the results of queries using the SQL built-in functions.
Options- A. True
- B. False Discuss
- 10. The condition in a WHERE clause can refer to only one value.
Options- A. True
- B. False Discuss
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