مشروع بسيط -الرجو المساعده بسرعه

السلام عليكم

Create Table Employees (Emp_Id          Number(10) Primary Key,
                        Emp_Name        Varchar2(50),
                        Emp_Sal         Number,
                        Emp_Bod         Date,
                        Emp_Nationality Number);
--==============================================================

Insert Into Employees Values (1, 'Ahmad', 5000, To_Date('15/08/1985', 'dd-mm-rrrr'), 1);                                              

Insert Into Employees Values (2, 'Ali', 6000, To_Date('15/06/1985', 'dd-mm-rrrr'), 2);

Insert Into Employees Values (3, 'Hasan', 4000, To_Date('15/10/1985', 'dd-mm-rrrr'), 1);

Insert Into Employees Values (4, 'Mohammad', 5000, To_Date('15/08/1980', 'dd-mm-rrrr'), 1); 

Insert Into Employees Values (5, 'Ibrahim', 5500, To_Date('10/08/1984', 'dd-mm-rrrr'), 1);

Insert Into Employees Values (6, 'Fadi', 6000, To_Date('01/01/1983', 'dd-mm-rrrr'), 3);

Insert Into Employees Values (7, 'Rami', 8000, To_Date('13/01/1982', 'dd-mm-rrrr'), 1);

Insert Into Employees Values (8, 'Abdallah', 6500, To_Date('03/09/1981', 'dd-mm-rrrr'), 2);

Insert Into Employees Values (9, 'Hani', 7500, To_Date('07/06/1980', 'dd-mm-rrrr'), 1);

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Create Table Employees1 As Select * From Employees;

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Select * From Employees;

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Sql> Set Pagesize 5;

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Sql> Set Linesize 300;

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Update Employees
   Set Emp_Sal = 10000
 Where Emp_Id  = 1;
  
--==============================================================

Delete Employees
 Where Emp_Id = 2;
 
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Drop Table Employees1;

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Select Emp_Id,
       Emp_Name
  From Employees
 Order By Emp_Id Desc
 
--==============================================================

Select Max(Emp_Sal)
  From Employees;
  
--==============================================================

Select *
  From Employees
 Where Emp_Name Is Not Null;  

--==============================================================

بالتوفيق.