Assignment Chapter - 1 Database Concepts (Class 12th)

 

Q1. Consider the following Employee table:

Table Name: Employee




The primary key of this table is Employee_ID and Manager_ID is a foreign key that references

Employee_ID.

Write SQL commands for the following:

(a) Create the above table.

(b) Insert values as shown above.

(c) Delete the Employee having Employee_ID 1217.

(d) Update the salary of “Amyra” to 40000.

(e) Alter the table Employee so that NULL values are not allowed for Age column.

(f) Write a query to display names and salaries of those employees whose salary are

greater than 20000.

(g) Write a query to display details of employees who are not getting any bonus.

(h) Write a query to display the names of employees whose name contains “a” as the last

alphabet.

(i) Write a query to display the name and Job title of those employees whose Manager_ID is

1201.

(j) Write a query to display the name and Job title of those employees whose Manager is

“Amyra”.

(k) Write a query to display the name and Job title of those employees aged between 26

years and 30 years (both inclusive)

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