5 3 EID john bob ENAME DID HIREDATE 2 09/01/2006 55000 01/01/2000 90000 1 jeff 01/01/2005 73000 2 2 susan 06/01/2005 50000 4 steve 2 01/01/2006 60000 SALARY

Third normal form says:   a. No nonkey columns depend on another nonkey column.   b. Every column that's not part of the primary key is fully dependent on the primary key.   c. Eliminate repeated fields.   d. None of the above.

Develop a PL/SQL block that would go through all the employees from EMPLOYEES table who work in department id= 90 (there is suppose to be 3 employee who work in Department 90)- IN BEGIN END END SECTION; Execute 3 separate of SELECT statement one after the other. Each SELECT will pull first name. salary of each employee and store them in local variables.+ SELECT LOAD INTO v_firstname1, v_salarxlWHERE emrlexee.id=100 Then second WHERE emploxee.id3101+ SELECT first_name, salary INTO v_firstname2, v_salary2 Then third + SELECTSELECTI tirst.name, salary INTO v_firstname3, v_salary3 iin WHERE emploxee id=102 ..... You must now have 6 local variables. DECLARE all of them accordingly in DECLARE section and use them in BEGIN and END.+ Then add another SELECT statement in BEGIN-END to find company average salary SELECT xa(salary) INTO aKasal FROM EMPLOYEES; !!! Do not forget to create y avgsal local variable in DECLARE section.

Let's wa(k through a review of basic SQL syntax, using as an example the database that was mentionedearlier. This database has the following simple structure(* indicates a primary key):Courses: CourseID*, CourseName, TeacherIDTeachers: TeacherID*, TeacherNameStudents; StudentID*, StudentNameStudentCourses: CourseID*, StudentID*Using the above table, implement the following queries.Query 1: Student Enrollment Query 2: Teacher Class Size

In Oracle database, if we have any field such as Job_Title field in any of our table then we can use DECODE function to sort the result based on our own numerical value. This can be done by including the following in ORDER BY clause: 1: ORDER BY DECODE(job-title,'Manager',3,Assistant',2,'Sales Rep', 1) DESC II: ORDER BY DECODE(job-title,'Manager', 3,'Assistant',2, Sales Rep', 1) ASC III I and II are correct IV I and II are incorrect ||| IV || 1

My other instruction for SQL says: Create and test a stored procedure called checkin_transaction that processes a “checkin” transaction. When a book is checked in, the corresponding CHECKOUT record is updated to show the date it was checked in, and the Pat_ID attribute in the BOOK table is updated to NULL.  The entire transaction (starting with START TRANSACTION; and ending with COMMIT;) should be in between the BEGIN and END statements of the stored procedure.  You should be able to call the procedure with a statement like this, passing the values of the Book_Num, Pat_ID, and Check_In_Date to the procedure:   CALL checkin_transaction(5243, 1170, ‘2017-04-30’) Do you guys know how?

This is for SQL Give me a list of all of our vendors (by their name) and, if they have an invoice, give me the total number of invoices we have from them and the invoice date of their first invoice. The invoice date results should be provided in a way that shows the date only in the following format: mm/dd/yyyy (e.g. 10/04/2021)

A simple Oracle function may determine the number of years since your birth by comparing today's date with your birthday.

I NEED HELP WITH THIS QUESTION FOR MY DATABASE MANAGEMENT CLASS FOR SQL DEVELOPER 5. Now compute Average GPA in each class. Display class_code, Class_GPA. Assume all courses are 3 credit courses. A general formula for GPA would be sum(gradepoints x Hrs)/sum(Hrs). Here you can just take an average of gradepoints as the credit hours are same for all courses.

Hello! I was given those tables(no data) and I am supossed to  write sql code for the following. But I looks like I have a syntax error or there is something I have wrote wrong. (see images) (1) Create a trigger “insert_inventory” on table “Inventory”. The trigger is fired after a row is inserted in table “Inventory”. After a row is inserted in table “inventory”, the “itemid”, the insertion time, and the action is inserted in table “Inventory_history”. The action is set to ‘add an item’. The oldprice is set to null. Test your trigger by inserting a row into Inventory and displaying the contents of Inventory_history. (3) Create a trigger “change_price” on table “Inventory”. The trigger is fired before a change is made to the “Inventory” table. Before the price of an item is changed, the “itemid”, the item’s old price, the action, and the time of change are inserted into the table “Inventory_history”. The action is set to “price change”. Test your trigger by updating a row in Inventory…