Tech Study

More mysql Examples / Practice Programs

Populate city dropdown based on state dropdown
Write a MySQL query to extract the last 3 numbers from admission fees
Write a MySQL query to find all students where first names are in lower case
Write a MySQL query to find all students where first names are in upper case
Write a MySQL query to get the student id, email id (discard the last three characters)
Write a MySQL query to get the student id, first name and admission month
Write a MySQL query to append ‘@example.com’ to firstname field
Write a MySQL query to get details of the students where the length of the first name greater than or equal to 5
Write a MySQL query to update the Branch number in the stuents table, where firstname = John
MySQL String Functions – Exercises
Write a MySQL query to get the average fee for all students more than 2 students stuyding in same branch
Write a MySQL query to get the branch ID and maximum fee of the students where maximum fee is greater than or equal to 1000
Write a MySQL query to get the average admission fee for each branch excluding ‘Computer Engineering’
Write a MySQL query to get Branch ID and the total admission fee of each branch
Write a MySQL query to get the difference between the highest and lowest salaries
Write a MySQL query to get the number of students with the same branch
Write a MySQL query to get the highest, lowest, sum, and average salary of all students
Write a MySQL query to get the average fee and number of students studying in ‘Computer Engineering’
Write a MySQL query to get the maximum admission fee from students table
Write a MySQL query to get the minimum admission fee from students table
Write a MySQL query to get the total admission fee of all students
Write a MySQL query to list the number of branchs available in the student table
Aggregate Functions and Group by – Exercises
Write a MySQL query to select all records from students where last name in Smith, Johnson & Lee
Write a query to display the last name of employees having ‘e’ as the fourth character
Write a MySQL query to display the last name of students whose name have exactly 5 characters
Write a MySQL query to display the firstname of all students who have both “a” and “i” in their first name
Write MySQL query to display the firstname, lastname and admission date for all students who took admission in year 2016
Write a MySQL query to display the firstname, lastname and bramch ID of all student in branch 111 or 666 in ascending order
Write a MySQL query to display the firstname, lastname and fee for all students whose fee is not in the range 1000 through 1500
MySQL Restricting and Sorting data examples
Write a MySQL to get first name of all students table after removing white spaces from both side
Write a MySQL to get query to first 5 records from a table
Write a query to get monthly admission fees of each and every student
Write a MySQL query to calculate 401*14+1025-500
Write a query get the first 3 characters of first name from students table
Write a MySQL query get all first name from students table in upper case
Write a MySQL query get all first name from students table in lower case
Write a MySQL query to get the number of students studying in the institute
Write a MySQL query to get the average admission fee and number of students in the students table
Write a MySQL query to get the maximum and minimum admission fee from students table
Write a MySQL query to get the total admission fee of students
Write a query to get the student ID, names (firstname, lastname), admission Fee in ascending order of admission Fee
Write a MySQL query to get the names (firstname, lastname), Fee, Scholarship of all the student (Scholarship is calculated as 15% of Admission Fee)
Write a MySQL query to get the details of all students according to first name in descending order
Write a MySQL query to get unique branch from student table
Write a MySQL query to display the names (firstname, lastname) using alias name “First Name”, “Last Name”
MySQL basic SELECT statement – Exercises

Write a MySQL query to get the total salary, maximum, minimum, average salary of students(Branch ID wise), for Branch ID 111 only

Introduction

Write a MySQL query to get the total salary, maximum, minimum, average salary of students(Branch ID wise), for Branch ID 111 only. I have used phpMyAdmin for the following Exercises.

– students

StudentId	FirstName	LastName	Admission_fee	Admission_date	Branch	Branch_ID
1	John	Smith	1000	2018-06-10	Computer Engineering	111
2	David	Jones	1200	2018-06-20	Civil Engineering	222
3	Michael	Johnson	900	2018-08-15	Chemical Engineering	333
4	Chris	Lee	1500	2018-07-10	Electrical Engineering	444
5	Mike	Brown	1600	2018-09-10	Mechanical Engineering	555
6	Lisa	Smith	1800	2018-07-10	Computer Engineering	111
7	Mary	Smith	1600	2018-06-11	Computer Engineering	111

SELECT branch_id, SUM( admission_fee ) , AVG( admission_fee ) , MAX( admission_fee ) , MIN( admission_fee ) 
FROM students
WHERE branch_id =  '111'
GROUP BY branch

Result

Write a MySQL query to get the total salary, maximum, minimum, average salary of students(Branch ID wise), for Branch ID 111 only

Java Final keyword

Introduction : java final keyword The final keyword present in Java programming language is generally used for restricting the user. …

C++ Memory Management: new and delete

C++ Memory Management We know that arrays store contiguous and the same type of memory blocks, so memory is allocated …