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What is MySQL?

MySQL is Open Source Relational Database management Software(RDBMS). MySQL is a relational database management system based on SQL – Structured Query Language. The application is used for a wide range of purposes, including data warehousing, e-commerce, and logging applications. The most common use for mySQL however, is for the purpose of a web database. 


Many of the world's largest and fastest-growing organizations including Facebook, Google, Adobe, Alcatel Lucent and Zappos rely on MySQL to save time and money powering their high-volume Web sites, business-critical systems and packaged software.


Read more from MySQL Official website

MySQL is one of the most important databases you can work with these days. The data in a MySQL database are stored in tables. A table is a collection of related data, and it consists of columns and rows.Databases are useful for storing information categorically.


A company may have a database with the following tables:

  • Employees

  • Products

  • Customers

  • Orders

It's extremely popular and MySQL developers are in high demand. 

No matter if you're building web applications, mobile applications or any other kind of application or if you're a data scientist - you'll need to work with data. Storing data, querying it efficiently and minimizing complexities whilst optimizing performance are crucial tasks.

Mysql makes working with data simple - it's built on a philosophy that prioritizes performance and efficiency.Mysql is widely-used as the database component of LAMP (Linux, Apache, MySQL, Perl/PHP/Python) web application software stack.

Our specialists are equipped to decide the best technology solutions for you and meet the industry demands. With our rich experience in the field, we ensure that you get the best value for the investment. The Mysql DB architecture gives the complete functionalities of RDBMS namely secondary indexes, strict consistency, and full query language.

Major features as available in MySQL

  • Even though Mysql doesn’t enforce it, it is vital to design a schema.

  • Likewise, indexes have to be designed in conjunction with your schema and access patterns.

  • Avoid large objects, and especially large arrays.

  • Cross-platform support

  • A broad subset of ANSI SQL 99, as well as extensions

  • Updatable views

  • Performance Schema that collects and aggregates statistics about server execution and query performance for monitoring purposes

  • A set of SQL Mode options to control runtime behavior, including a strict mode to better adhere to SQL standards.

  • Partitioned tables with pruning of partitions in optimizer

  • ACID compliance when using InnoDB and NDB Cluster Storage Engines

How can help students in MySQL assignments?

If you are a student or database developer, administrator or someone with a basic understanding of the features of Mysql and now want to help in writing query for Mysql.

We will also cover aspects like cloud deployment which is important when it comes to web applications, and integration with Hadoop for fast and efficient Big Data processing, querying, data modelling and the other database operations.

MySQL is database for modern applications

Mysql is a general purpose, document-based, distributed database built for modern application developers and for the cloud era. No database is more productive to use.

As a programmer, you think in objects. Now your database Mysql does too.


Mysql is a document database, which means it stores data in JSON-like documents. We believe this is the most natural way to think about data, and is much more expressive and powerful than the traditional row/column model.

Connect To MySQL Database From Command Line

  • Step 1: Open Mysql CMD

  • Step 2: Type  mysql -u root -p admin; then press enter root is user name admin is password

  • Step 3: Check no of database: show databases;

Mysql Assignment common tasks

  • Create a simple relational database in MySQL.

  • Insert, update and delete data the tables.

  • Create queries using basic and advanced SELECT statements

  • Perform join operations on relational tables

  • Use aggregate functions in SQL

  • Write subqueries

  • Create views of the database

Mysql Homework Help

  • If you are student, learning mysql database query and not able to find how to write some complex query.

  • You are new to mysql database.

  • If you know basic query and want to practice advanced query

  • If you have database schema and don't where to start , convert database schema to mysql tables

  • Learn mysql by doing projects

  • Course works help

Mysql Project with web programming

  • Full ACID transactions.

  • Support for joins in queries.

  • Mysql database connection with PHP, Java,

  • Create a react PHP mysql web app

  • Two types of relationships instead of one: reference and embedded.

MySQL Assignment Topics we cover

  • how to install and use MySQL server locally and in the cloud

  • how to perform CRUD (Create, Read, Update, Delete) operations on MySQL databases

  • how to filter for data efficiently

  • how to work with both the MySQL Command line Shell and drivers (e.g. mysql driver)

  • how to increase performance by using indexes (and how to use the right indexes!)

  • how to use the amazing "Aggregation Framework" that's built into MySQL

  • PHP + MySQL database system

  • MySQL Database Queries

  • .and much more!

MySQL Assignment Samples

Assignment 1 Requirement


This assignment will test your understanding of conditional logic, views, ranking and windowing functions, and transactions, as shows in the videos. The prompt includes 10 questions.

You will need to create your own test database and tables using the criteria below. Please submit your answers using only one file. The preferable format is a text file with a sql extension. You can easily edit the file using a text editor such as Notepad++, which is available online for free.



  1. Write a CASE expression that can be used to return the quarter number(1, 2, 3 or 4) only based on the month.

  2. Write a query which will pivot the Sales_Totals data so that there is a column for each of the 4 products containing the total sales across all months of 2020. It is OK to include the product_id values in your query

  3. Write a query that retrieves all columns the Sales_Totals Table, along with a column called sales, rank which assigns a ranking to each row based on the value of the Sales column in descending order.

  4.  Write a query that retrieves all columns from the Sales_Totals Table, along with a column called product_sales_rank which assigns a ranking to each row based on the value of the Sales column in descending order, with a separate set of rankings for each product.

  5. Expand on the query from question #4 by adding  logic to return only those rows with a product_sales_rank of 1 or 2.

  6. Write a set of SQL statements which will add a row to the Region table for the Europe region and the Sprocket product (product_id = 7684) for October 2020, with a sales total of $1500. You can assign any value to the region_id column, as long as it is unique to the Region table. The statements should be executed as a single unit to work. Please note that since the statements are executed as a single unit of work, additional code is needed.

  7. Write a statement to create a view called Product_Sales_Totals which will group sales data by product and year. Columns should include product_id, year, product_sales, and gear_sales, which will contain the total sales for the “Gear-Large” and “Gear-small” products(should be generated by an ) expression, and it is OK to use the product_id values in the expression). To accomplish this, you need a CASE statement. The product_sales column should be a sum of sales for the particular product_id and year, regardless of what kin dof product it is. The grear_sales column should be a sum of sales only in the case where the product is either “Gear-Large” or “Gear-Small”. Else in the case that the product is neither “Gear-Large” or “Gear-Small”, the value for gear_sales should be 0.

  8. Write a query to return all sales data for 2020, along with a column showing the percentage of sales for each product. Columns should include product_id, region_id, month, sales, and pct_product_sales.

  9. Write a query to return the year, month, and sales columns, along with a 4th column named prior_month_sales showing the sales from the prior month. There are only 12 rows in the sales_totals table, on efor each month of 2020, so you will not need to group data or filter/partition on region_id or product_id

  10. If the tables used in this prompt are in the ‘sales’ database, write a query to retrieve the name and type of each of the columns in the product table. Please specify the ‘sales’ database in your answer.

Assignment 2 Requirement

The questions for this assignment will test your understanding of conditions, joins, grouping, and subqueries. You will need to create your own test database and tables using the criteria below. There are 2 prompts, each of which has several questions.

Please submit your answers using only one file. The preferable formate is a file with a .sql extension. You can easily edit the file using a editor such as Notepad++, which is available online for free.

Please note that null is not a string value, i.e, ‘null’. It is a true null and should be inserted into the table without quotes.

Note: (p)= “primary key” and (f) = “foreign key”. They are not part of the column names

Prompt 1 Questions

Answer the following question by construction a single query table where the grade A or B was assigned.

  1. Write a query to retrieve all columns from the Enrollment table where the grade A or B was assigned.

  2. Write a query to return the first and last names of each student who taken Geometry

  3. Write a query to return all rows from the  Enrollment table where the student has not given a failing grade(F). Include any rows where the grade has not yet been assigned.

  4. Write a query to return the first and last names of every student in the Student table. If a student thas ever enrolled in English please spedity the grade that the received. You need only include the Enrollment and Student tables, and ma specify the class_id value of 102 for the English class.

  5. Write a query to return the total number of students who has ever been enrolled in each of the classes.

  6. Write a statement to modify Robert Smith grade for the English class from a B to B+. Specify the student by his student ID. Which is 500, and the English class by class ID 102

  7. Create an alternate statement to modify Robert Smith’s grade in English, but for this version specify the student by first/last name, not by student ID. This will require the use of a subquery.

  8. A new student name Michael Cronin enrolls in the Geometry class. Construct a statement to add the new student to the Student table (you can pick any value for the student_id, as long as it doesn’t already exist in the table).

  9. Add Michael Cronin’s enrolment in the Geometry Class to the Enrollment table, You may only specify names(e.g. “Michael”, “Cronin”, “Geometry”) and not numbers(e.g. student_id, class_num) in your statement. You may use subqueries if desited, but the statement can also be written without the use of subqueries. Use ‘Spring 2020’ for the semester table.

  10. Write a query to return the first an last numes of all students who have not enrolled in any class. Use a correlated subquery against the Enrolment table

  11. Retrun the same results as the previous question (first and last name of all students who have not enrolled in any class), but formulate your query using a non-correlated subquery against the Enrollement table

  12. Write a statement to remove any rows from the Student table where the person has not enrolled in any classes. You may use either a correlated or non-correlated subquery against the Enrollment.

Prompt 2 Queries

  1. Write a query to retrieve each unique customer ID(cus_id) form the Customer_Order table. There are multiple ways to construct the query, but do not use a subquery.

  2. Write a query to retrieve each unique customer ID(cus_id) along with the latest order date for each customer. Do not use a subquery.

  3. Write a query to retrieve all rows and columns from the Customer_Order table, with the results sorted by order date descending (latest date first) and then by customer ID ascending.

  4. Write a query to retrieve each unique customer (cust_id) whose lowest order number (order_num) is at least 3. Please note that this referring to the value of the lowest order number and NOT the order count. Do not use a subquery.

  5. Write a query to retrieve only those customers who had 2 or more orders on the same day. Retrieve the cust_id and order_date value, along with the total number of orders on that date. Do not use a subquery.

  6. Along with the Customer_Order table, there is another Customer table below. Write a query that returns the name of each customer who has placed exactly 3 orders. Do not return the same customer name more than once, and use a correlate subquery against Customer_Order to determine the total number of orders for each customer.

  7. Construct a differet query to return the same data as the previous question(name of each customer who has placed exactly 3 orders), but use a non-correlated subquery against the Customer_Order table.

  8. Write a query to return the name of erach customer, along with the total number of orders for each customer, Include all customer, regardless of whether or not they have orders, Use a scaler, correlated subquery to generate the number of orders

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