Answer each of the following questions briefly. The questions are based on the following relational schema: Emp(eid: integer, ename: string, age: integer, salary: real) Works(eid: integer, did: integer, pettime: integer) Dept(did: integer, dname: string, budget: real, managerid: inte 1. Write the SQL statements required to create the preceding relations, including appropriate versions of all primary and foreign key integrity constraints. 2. Write an SQL statement to add John William as an employee with eid = 104, age = 30 and salary 18,000. 3. Write an SQL statement to give every employee salary a 5% raise. 4. Write an SQL statement to select all the different values from the age column in the Emp table. 5. Write an SQL statement to select all records where the budget column has the value greater than 10,000 in the Dept table