Q. What does the following query find?

(SELECT DISTINCT r.sid
FROM boats b, reserves r
WHERE b.bid = r.bid
AND b.color = 'red')
MINUS
(SELECT DISTINCT r.sid
FROM boats b, reserves r
WHERE b.bid = r.bid
AND b.color = 'green')

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Q. Which of the following query finds the name of the sailors who have reserved at least two boats?

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Q. Which of the following query finds the total rating of the sailors who have reserved boat "103"?

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Q. The SELECT statement SELECT 'Hi' FROM DUAL WHERE NULL = NULL; Outputs

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Q. If a query involves NOT, AND, OR with no parenthesis

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Q. Let the statement
SELECT column1 FROM myTable;
return 10 rows. The statement
SELECT ALL column1 FROM myTable;
will return

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Q. Table employee has 10 records. It has a non-NULL SALARY column which is also UNIQUE.
The SQL statement
SELECT COUNT(*) FROM employee WHERE SALARY > ALL (SELECT SALARY FROM EMPLOYEE);
prints

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Q. Which of the following SQL commands can be used to add data to a database table?

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Q. Which of the following join is also called as an 'inner-join'?

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Q. The result of a SQL SELECT statement is a ________ .

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Q. Which of the following query is correct for using comparison operators in SQL?

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Q. How to select all data from student table starting the name from letter 'r'?

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Q. Which of the following SQL query is correct for selecting the name of staffs from 'staffinfo' table where salary is 10,000 or 25,000?

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Q. Select the right statement to insert values to the student table.

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Q. ............. joins two or more tables based on a specified column value not equaling a specified column value in another table.

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Q. In SQL, which command is used to change a table's storage characteristics?

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Q. 'AS' clause is used in SQL for

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Q. The type of function which allows performing additional operations and sending messages to other tables in database program is considered as

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Q. The technique in which source program are replaced by database management generated code is classified as

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Q. In database management systems, the record which contains all the data regarding tuples of database is called

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