1. Write an SQL query that uses a single-row subquery in a WHERE clause. Explain what the query is intended to do.

2. Write an SQL query that uses a multiple-column subquery in a FROM clause. Explain what the query is intended to do.

3. Write an SQL query that is based on multiple tables and uses a subquery with the GROUP BY statement and HAVING clause. Explain what the query is intended to do.

4. Write an SQL query that is based on multiple tables and uses a multiple-row subquery in a WHERE clause. The subquery will include the GROUP BY statement and another multiple-row subquery in a HAVING clause. Explain what the query is intended to do.

5. Write an SQL query that joins three tables and uses any type of a subquery. Explain what the query is intended to do.

CUSTOMERZ BIKE BIKE BRAND CUST ID BIKE VIN BB ID CUST FNAME 88 ID BB NAME FK CUST MNAME BIKE MAKE YEAR B8 COUNTRY NOC CUST LNAME BIKE COLOR CAN ORDER CUST ADDRESS BIKE PRICE CUST_CITY CUST ID CUST STATE TRAN D CUST 21P BELONGS CUST COUNTRY 1:N) SALESPERSON CUST EMAIL TRANSACTION SLP_EMPID CUST PHONE TRAN ID SLP FIRST BIKE VIN SLP LAST -BELONGS TRAN DATE TIME SUP EMAIL 1:N SLP TEL TRAN AMOUNT (O:N) CUST ID PLACE SLP EMPID PAYMENT PK PMT ID PMT METHOD FK CUST ID