1. Write an SQL command to create the works-on table.
2. Write an SQL command to add an attribute named DataeOfBirthto the employee table.
3. Write an SQL command to List the name of the employee(s) inthe research department that has the maximum salary in thisdepartment.
4. Write an SQL command to List the name of each employee whodoes not work in any project.
5. Write an SQL command to List the name of each employee andthe total hours he/she has worked in all projects.
6. Write an SQL command to List the name of each department andthe name of its manager.
7. Write an SQL
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