I need help please

E3 Mysql Program Design Experimental Objective You are required to utilize the following SQL operations expertly under Mysg platform Experimental Requirement 1.Basic Hardware Configuration: Intel Pentiumillor above, Greater than 512MB memory 2. Software Requirement: Mysq 3. Hours: 2h 4 Experiment Report after Experiment Problem 1. A block of code is required to get the number of employees according to the input variabe deptcode. use example set deptcode-1i set Opersonnum0 select count(") into epersonnum from emp where dept no 9 deptcode select personnum Problem 2. Write a code block contains part of the definition, execution and exception handling: according to the empno of employee, output the employees name, salary and department name: if the inputted employee does not exist, then output error message. Problem 3. Write a block of code, according to the parameter of the employee number (empno), get his annual income and print it. Problem 4. Wri te a code block containing part of the definition, execution and exception handling, which realizing the following function: according to the department number output the names, salaries of all employees in this department. If the department does not exist, outputting error message