Q. Which of the following SQL commands is used to retrieve data?

View solution

Q. Which of the following is a SQL aggregate function?

View solution

Q. Which SQL statement is used to update data in a database?

View solution

Q. Which SQL statement is used to delete data FROM a database?

View solution

Q. Which SQL keyword is used to sort the result-set?

View solution

Q. The SQL statement
SELECT SUBSTR('123456789', INSTR('abcabcabc', 'b'), 4) FROM DUAL;

View solution

Q. Which of the following group functions ignore NULL values?

View solution

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 > ANY (SELECT SALARY FROM EMPLOYEE);
prints

View solution

Q. The SQL statement
SELECT SUBSTR('abcdefghij', INSTR('123321234', '2', 3, 2), 2) FROM DUAL;
prints

View solution

Q. The SQL statement
SELECT ROUND(45.926, -1) FROM DUAL;

View solution

Q. Which of the following must be enclosed in double quotes?

View solution

Q. Which of the following command makes the updates performed by the transaction permanent in the database?

View solution

Q. Which command undo all the updates performed by the SQL in the transaction?

View solution

Q. Find all the cities whose humidity is 89

View solution

Q. Find the temperature in increasing order of all cities

View solution

Q. What is the meaning of LIKE '%0%0%'

View solution

Q. Find the names of these cities with temperature and condition whose condition is neither sunny nor cloudy

View solution

Q. Find the name of those cities with temperature and condition whose condition is either sunny or cloudy but temperature must be greater than 70F.

View solution

Q. Find all the tuples having temperature greater than 'Paris'.

View solution

Q. Find all the cities with temperature, condition and humidity whose humidity is in the range of 63 to 79

View solution