. Create a query to display the total number of employees and, of that total, the number of employees hired in 1995, 1996, 1997, and 1998. Create appropriate column
headings.


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Create a matrix query to display the job, the salary for that job based on department number, and the total salary for that job, for departments 20, 50, 80, and 90, giving each column an appropriate heading.

السلام عليكم

بفضل ان تعرض ما توصلت اليه من محاولات فى الحل ... حتى يمكن المساعدة
مثلما فعل الاخ / سامح حسن ... فى مشاركته هذه ...
ارجوا التصحيح ... قمت بالحل واريد معرفة ابن الخطاء