SQL Homework Help Online | Do My SQL Homework

SQL Homework Help | Get SQL Assignment Help Online

Database is one of the most common topics covered as a part academic curriculum. Database management requires the knowledge of a language that can be used for data retrieval and manipulation. SQL is one of the most commonly used query languages for such purposes and hence receives a lot of focus as a part of the academic curriculum.  While learning SQL, students are required to practice several queries and complete the homework given to them by the professors. If you need assistance with it, then simply ask us - do my SQL Homework and a well-compiled solution will be delivered to your inbox. We are the most trusted online SQL assignment help provider.

Students find some of the database queries to be tricky and hence result in executing incorrectly due to a lack of proper knowledge. They may also end up submitting poor-quality solutions and thus scoring poor grades. If you are one of such students, avail the best online SQL assignment help offered by us. Our pool of SQL programmers and experts leverage their in-depth knowledge and experience to provide quality SQL homework solutions. With years of industry experience, we assure you the A+ grades in all the SQL solutions delivered by us. 1000s of students across USA, UK, Australia and other countries have benefitted by seeking the SQL assignment help from our experts.

 

What is SQL? Why do students study SQL?

SQL i.e. Sequential Query Language, is a specialized programming language crafted for the efficient management of relational database management systems (RDBMS). SQL serves as the query language of choice for seamless database creation and administration. The mobile and web apps predominantly use SQL to store data safely. SQL can be used to perform different operations, which include optimizing and managing databases. It can also be used to describe the data, store data, and change that data anytime using commands.

SQL provides the means to interact with databases, enabling a multitude of operations such as querying, performing tasks, and executing functions. This versatile language empowers the creation of tables, insertion of data, removal of tables, alteration of existing data, and the establishment of access permissions for users, thereby controlling their data accessibility.

Different types of SQL commands

There are five different types of SQL commands available:

DDL (Data Definition Language) - DDL will change the structure of the database table such as you can create a table, deleting a table and alert the table. Commands of DDL will save permanent changes to the database. Various commands that are used in DDL include create, alter, drop and truncate.

Data manipulation language (DML) - DML is used to modify the database. It will be responsible for the changes made to the database. Commands in DML are not auto-committed therefore the changes are not saved to the database. Various commands available in this type of SQL include insert, update and delete.

Data control language (DCL) - DCL commands allow you to grant and take away the permissions that are given to the user. Various commands available in DCL are granted and revoked.

Transaction control language (TCL) - TCL commands will use the commands such as Insert, delete and update. The operations done are committed to the database automatically. Therefore, you cannot use them for creating and dropping the tables. Commands that you can use are commit, rollback and save point.

Data query language - DQL is used to fetch the data from the database. The only command that you can use in DQL is select.

Types of databases used in SQL Homework & Assignments

Listed below are the types of databases used in SQL

MySQL Homework Help
It is a popular fully-managed database that is SQL-based. It is an open-source project that is developed in C and C++. It is simple to use and manage. You can install this without having to pay a penny. The database is lightweight and portable and widely used by DevOps teams to deploy cloud-native apps for business solutions. The advanced security features will give enough protection to the data. You can access highly interactive BI reports to take the right business decisions.  

PostgreSQL Homework Help
It is an advanced type of database that is used along with the traditional table-based approach using user-defined objects to create databases that allow you to analyse complicated data with ease. It is open-source and is in compliance with SQL standards. It can tackle data that are in different formats such as SQL and JSON, thus offering you the flexible capabilities of the NoSQL database. It is preferred by many for offering the best business solutions with different file requirements. It offers high scalability for database configurations and extensions.

SQLite Homework Help
SQLite is an SQL database engine that is considered to be similar to a C library. It is used with other applications to improve storage capabilities. The on-disk file format used in the apps is good for financial analysis and cataloguing. It is portable and does not need any external infrastructure and configuration. It offers you version control so if there is any infrastructural error such as power failure, then there will be no loss of data. It is easy for you to read, write and overwrite on SQLite.

Microsoft SQL Server Homework Help
It is the most popular SQL database that is widely used by companies for innovative management solutions. It is customized to suit the business requirements and get commercial solutions. The database is highly flexible and has different versions and functionalities suitable for different use cases.

 

Concepts That Will Help You Solve SQL Homework & Assignments

How do you find consecutive numbers in SQL?

If you're aiming to identify consecutive numbers within SQL, you can leverage the RANK() function along with windowing clauses to establish groupings of sequential numbers. Subsequently, the MIN() and MAX() functions can be employed to determine the beginning and conclusion of each of these groups.

How to select multiple numbers in SQL?

To select multiple numbers in SQL, you can use the IN operator followed by a list of values enclosed in parentheses. For example:
SELECT * FROM mytable WHERE id IN (1, 3, 5, 7)

This would select all the rows in "mytable" where the "id" column has a value of 1, 3, 5, or 7.

How do I create a SQL package?

Within SQL, a package embodies a schema object that effectively consolidates interconnected procedures, functions, variables, and other relevant components. The process of crafting a package in SQL entails utilizing the CREATE PACKAGE statement, wherein you specify both the designated package name and the particular elements to be encompassed within the package. Following its creation, this package becomes deployable in additional SQL statements and scripts, achieved through the reference of the package name along with its constituent elements.

How do I select multiple entries in SQL?

For retrieving multiple records in SQL, leverage the IN clause followed by a list of values separated by commas. For instance, employing SELECT * FROM my_table WHERE id IN (1, 2, 3) yields rows from my_table with id values of 1, 2, or 3. Alternatively, you can utilize the OR operator to merge various conditions. For example, SELECT * FROM my_table WHERE id = 1 OR id = 2 OR id = 3 will produce the same outcome as the preceding query.

How do I select a line in SQL Server?

To fetch a specific row in SQL Server, employ the SELECT statement alongside a WHERE clause defining the condition for matching. For instance, to retrieve all rows where the "id" column equals 5, the following code suffices:
SELECT * FROM table_name WHERE id = 5;
This will return all columns and rows from "table_name" where the "id" column equals 5.
 

Why do students want to hire us for SQL homework?

Some of the popular topics in SQL Programming on which our programming homework help experts work on a daily basis are listed below:

Oracle 12c	Data Definition Language
MySQL	Data Manipulation Language
Microsoft SQL Server	Data Control Language
PostgreSQL	Data Query Language
MongoDB	Transaction Control Language
MariaDB	SQL joins
Data Definition Language	Transaction in SQL
Data Manipulation Language	Normalization
Data Control Language	Data Query Language
Transaction Control Language

 

We have a team of experts who work with professionalism to complete the homework. Few of the features that grab the attention of students to us include:

• Expert tutors - We have tutors who are experts in SQL to work on your homework and help you secure good grades in the final examination. Our Programming experts are the best SQL homework Help, providers. 
• Prompt delivery - We provide timely delivery of homework so that you will have adequate time in reviewing the task and get back to us for any changes to be done. There will also be a good amount of time for you to check before submitting it to the professors.
• Pocket-friendly - We have set up the pricing structure by keeping tight student budgets in mind. So, students can avail of our services with their pocket money and get a quality solution.
• Round-the-clock support - We offer uninterrupted support to the student. In case of any query, they can reach out to us through calls, live chat or email.

 

Example of A Simple SQL Homework Help Code Written By Our Programmer

Code for: Model with Functional Dependencies

Solution:

drop database if exists MakoniTendekaiAssignment2;

create database MakoniTendekaiAssignment2;

use MakoniTendekaiAssignment2;

create table Buyer(
    BuyerId INT NOT NULL PRIMARY KEY,
    BuyerFirstName varchar(30) NOT NULL,
    BuyerLastName varchar(30) NOT NULL,
    BuyerPhone varchar(20) NOT NULL
);

create table Vendor(
    VendorId INT NOT NULL PRIMARY KEY,
    VendorItem VARCHAR(50) NOT NULL,
    VendorPhone VARCHAR(20) NOT NULL
);

create table Invoice(
    InvoiceId INT NOT NULL PRIMARY KEY,
    InvoiceDate Date NOT NULL,
    InvoiceItem varchar(30) NOT NULL,
    Price decimal(10,2) NOT NULL,
    BuyerID INT NOT NULL,
    VendorId INT NOT NULL,
    FOREIGN KEY(BuyerID) REFERENCES Buyer(BuyerId),
    FOREIGN KEY(VendorId) REFERENCES Vendor(VendorId)
);

insert into buyer values(1,"Robert","Shire","205-555-5523");
insert into buyer values(2,"Chris","Bancroft","201-555-5512");
insert into buyer values(3,"Katherine","GoodYear","123-555-1234");

insert into Vendor values(1,"Chairs, Chairs, Chairs",555-123-1212);
insert into Vendor values(2,"I Love Lamps",555-122-1221);
insert into Vendor values(3,"I Heart Candles",555-555-2222);
insert into Vendor values(4,"PutUrBooksHere.com",888-333-1212);
insert into Vendor values(5,"Tables And More",800-111-5555);
insert into Vendor values(6,"Couches A Plenty",555-4215555);
insert into Vendor values(7,"Chest-T-Us",800-555-1212);

Insert into invoice values(1,'2013-07-14','Antique Desk',3000,1,1);
Insert into invoice values(2,'2013-07-14','Antique Desk Chair',1200,1,1);
Insert into invoice values(3,'2013-07-14','Antique Lamp',800,1,2);
Insert into invoice values(4,'2013-07-14','Candles',45,2,3);
Insert into invoice values(5,'2013-07-14','Book Shelf',250,2,4);
Insert into invoice values(6,'2013-07-16','Dining Room Table',2500,1,5);
Insert into invoice values(7,'2013-08-12','Book Shelf',200,1,4);
Insert into invoice values(8,'2013-08-12','Dining Room Chairs',1000,1,1);
Insert into invoice values(9,'2013-08-24','Dining Room Chairs',1000,1,1);
Insert into invoice values(10,'2013-08-25','Antique Couch',4500,3,6);
Insert into invoice values(11,'2013-09-01','Coffee Table',500,1,4);
Insert into invoice values(12,'2013-09-02','Antique Chest',1250,3,7);
Insert into invoice values(13,'2013-09-02','Generic Chair',75,3,1);
Insert into invoice values(14,'2013-09-02','Antique Chair',125,3,1);

select * from invoice;



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