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SQL is referred to as structure query language used in relational databases as a programming language. SQL performs many functions in the database system such as it updates, inserts, deletes and creates records in the system. SQL creates new tables and procedures that can be manipulated by the users. Our experts who provide SQL assignment help have extensive knowledge regarding the various concepts of SQL, where they use simple language and provide premium quality work related to the topic.

Our SQL Assignment Writing Team Provides Help With All The Concept Of The Subject

Database: Create, drop, rename and select from a database

Constraints of SQL: primary key, foreign key etc

Statements: Select, insert, update, delete

Table: Create, drop, rename, delete, truncate, copy and alter tables

Clauses: where, or, with, and, as, having, order by, group by

Joins: inner, full, outer, cross join

Concepts of fields and records

SQL Commands: DDL, DML, DCL, DQL

Operators: Logic, Arithmetic and Comparison

Transaction controls

Relational database

Expressions: Boolean, numeric and data expressions

SQL and advancements SQL, PL/SQL, MySQL

Authorization in SQL

Transactions: commit and rollback

Structure type and Inheritance in SQL

Structure in XML data

Sub-queries in SQL

Relational Model

Design and SQL query

Functions: char, replace, truncate, reverse etc.

When Could You Require SQL Assignment Help Services from an Expert?

Students who have a short time to submit the work, less knowledge of the concepts, deadline anxiety/fear and find it difficult to submit, they then look for professional help to make their work easy and be stress-free.

Students are required to submit high-quality work and if they don’t, the professors tend to reject the submission. Our teams at Online Assignment Expert can solve your problem of getting a high-quality assignment. Professionals are available 24*7 to solve any query and provide 100% plagiarism-free work and with proper formatting without making it complex. SQL assignments demand technical insights and practical implementation; experts provide simple solutions for the most complex questions.

Sample SQL Questions and Solutions by SQL Assignment Writing Experts

Here are a few samples that will help you do your SQL assignments easily:

Q 1. Prepare a table Worker with Worker ID, First Name, Last Name, Salary, Joining Date, Department further following a Bonus table

Worker_ID

First_Name

Last_Name

Salary

Joining Date

Department

001

Lucy

Westley

1,00,000

2014-03-20

HR

002

David

Irving

80,000

2014-03-20

Admin

003

Richard

Reynolds

70,000

2014-03-20

Accounts

004

Gemma

Barry

65,000

2014-04-12

Accounts

005

Letitia

Slabu

75,000

2014-04-15

Admin

Worker_Ref_ID

Bonus Date

Bonus_Amount

1

2014-04-20

10,000

2

2014-04-20

5,000

3

2014-04-20

5,000

4

2014-05-12

5,000

5

2014-05-12

5,000

CREATE DATABASE ORG;
SHOW DATABASES;
USE ORG;
CREATE TABLE Worker (
    WORKER_ID INT NOT NULL PRIMARY KEY AUTO_INCREMENT,
    FIRST_NAME CHAR(25),
    LAST_NAME CHAR(25),
    SALARY INT(15),
    JOINING_DATE, DATE
    DEPARTMENT CHAR(250
);
INSERT INTO WOKER
    (WORKER_ID, FIRST_NAME, LAST_NAME, SALARY, JOINING_DATE, DEPARTMENT) VALUES
    (001, ‘Lucy’, ‘Westley’, ‘100000, ’14-03-20’, ‘HR’)
    (002, ‘David’, ‘Irving’, ‘80000, ’14-03-20’, ‘Admin’)
    (003, ‘Richard’, ‘Reynolds’, ‘70000, ’14-03-20’, ‘Accounts’)
    (004, ‘Gemma’, ‘Barry’, ‘65000, ’14-04-12’, ‘Accounts’)
    (005, ‘Letitia’, ‘Slabu’, ‘75000, ’14-04-15’, ‘Admin’)
CRETAE TABLE Bonus (
    WORKER_REF_ID INT
    Bonus_AMOUNT INT (10) 
    BONUS_DATE DATE
    FOREIGN KEY (WORKER_REF_ID)
        REFERENCES Worker (WORKER_ID)
    ON DELETE CASCADE
);
INSERT INTO Bonus
    (WORKER_REF_ID, BONUS_AMOUNT, BONUS_DATE) VALUES
    (001, 10000, ‘2014-04-20’),
    (002, 5000, ‘2014-04-20’),
    (003, 5000, ‘2014-04-20’),
    (004, 5000, ‘2014-05-12),
    (005, 5000, ‘2014-05-12);
                    

Q 2. Write SQL Query to fetch “First_name” from worker table.

Ans. Required Query is: Select FIREST_NAME AS WORKER_NAME from Worker;

Q 3. Write SQL Query to fetch “First_name” from the worker table in upper case.

Ans. Required query is: Select upper(FIRST_NAME) from Worker;

Q 4. Write an SQL to fetch unique values of the Department from the worker Table.

Ans. Required query is: Select distinct DEPARTMENT from Worker;

5. Write an SQL Query to print the First_Name from worker table after removing white spaces from the right side.

Ans. The required query is: Select RTRIM(FIRST_NAME) from Worker;

Q 6. Prepare a table with Employee name, email, department, contact, employee ID and Employee Head ID.

Ans. Schema:
Create table employee(EmpID int primary key, EmpName varchar(100), Department varchar(50), Contactno bigint, Email varchar(100), EmpHeadID int)
                    

EmpID

EmpName

Department

Contact No

Email

EmpHeadID

101

Roma

E-101

1234567890

Roma@gmail.com

201

102

Nikola

E-208

1234567890

Nokola.tomp@hotmail.com

202

103

Michealle

E-106

1234567890

Michealle@yahoo.com

203

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Online Assignment Expert provides SQL assignment help to students who face issues in solving assignments based on Java, Python, Database, Android, Perl, C++ etc.; and also to students pursuing degrees such as computer science, Software engineering, Information Technology, Computer Engineering, Information System security etc. We are providing students with premium quality work from past many years and their results have shown the progress. Our team will make sure that all requirements are fulfilled with proper quality, grammar and formatting. To know more about our academic services, do call or chat directly with our expert right away!

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