Identify the relational keys for each table. List each relational key in a separate line. Identify for each table, the followings:  Foreign keys Candidate keys Primary key Alternate keys

Q: How to create multiple primary keys? Create multiple primary keys for below table…

A: A primary key is a column or combination of columns in a table that uniquely identifies each row in…

Q: How would you edit a table's structure using SQL? What kind of modifications are possible in…

A: Introduction: SQL (Structured Query Language) is employed to communicate with a database. According…

Q: Since the COURSE table maintains referential integrity, every entry entering the SECTION table must…

A: Constraints can be specified either when the table is created using the CREATE TABLE statement or…

Q: How is the order in which attributes appear in a result table changed?

A: In Database, each and every table have some attribute and they are listed in the table with some…

Q: How does SQL change table structure? What large changes are possible? Which commands apply these…

A: SQL (Structured Query Language) is used to manage and manipulate data in a relational database…

Q: Select the best answer from the given choices: To add a new attribute (column) to an existing table,…

A:

Q: . If the Employees table contains a foreign key named dept_id, is it likely that the values in this…

A: Employee contains primary key of department as foreign key.  This means there is one to many…

Q: Create a table named REP_CONTRACTS containing the columns listed in the following chart. A composite…

A: First we have to create a table say STORE_REPS which should contain Rep_ID and Store_ID columns and…

Q: How do joins operate in SQL, and what are the different types of joins?

A: A domain-explicit language utilized in relational database management and programming is called SQL.…

Q: Question 16 )Listen In the tables described below, which column is a foreign key? SKU_DATA (SKU,…

A: Foreign Key is a key present in another table used to refer primary key of another table.  Here,…

Q: How to create a table in SQL?

A:

Q: - Copy the name, salary, and commission of each employee hired before 1980 into TEMP table - Copy…

A: INSERT INTO query is used to copy the sql data from one table to another table.WHERE is SQL clause…

Q: When two tables may be joined using the union operation.

A: We are going to understand when two tables may be joined using the union operation. UNION is an…

Q: How to add a new column in SQL?

A: A database management system (or DBMS). It is essentially just a computer-based data storage system.…

Q: The data set can contain many data tables Select one: True OFalse

A: A data set is an accumulation of linked, separate, tabularly presented related data items that can…

Q: 6. What are different JOINS used in SQL?

A: A JOIN clause is used when you need to combine data from two or more tables into one data set.…

Q: How would you modify the structure of a table using SQL? What sorts of adjustments are conceivable…

A: Introduction: Database objects known as tables store data in rows and columns and are used as…

Q: The number of times the table structure has been altered by SQL queries. Which major changes need to…

A: Yes, by tracking modifications in the history table and using SQL commands, you can keep a record of…

Q: How many SQL queries change the structure of the table? Which significant alterations must to be…

A: The answer is given below

Q: Write SQL query. Table:- Employees Columns:- ID,NAME,SALARY, DEPT_NAME Find department name where…

A: Given:-Write SQL query.Table:- EmployeesColumns:- ID,NAME,SALARY, DEPT_NAMFind department name where…

Q: creat the following tables and insert your own values: emp(eno, ename, bdate, title, salary, dno)…

A: The SQL INSERT INTO Statement is used to add new rows of data to a table in the database

Q: Create a database table about Book Owner, Book Borrower, and also about the Book. Please list the…

A: It consists of a collection of rows and columns where each row consists of values of fields…

Q: How many different SQL queries do you think changed the table's structure? Which substantial…

A: The answer is given below step.

Q: Change to use the database frozenfood Alter table customerOrder add column total as data type…

A: Note: As per our guidelines we can able to solve only three questions. So, please re-post the…

Q: Write a SQL statement to create a foreign key in table Invoice_Detail that refers to the…

A: Write a SQL statement to create a foreign key in table Invoice_Detail that refers to the…

Q: DATABSE

A: Here the entity BankBranch is a weak entity and therefore we need to include primary key of Bank as…

Q: For each different job_id group in the employee table, show the average salary and job_id for the…

A: SELECT Average_salary,              Job_id  FROM employees  WHERE EXISTS (SELECT *…

Q: Display the customer number, customer name, order number, and order date for each order. Sort the…

A: solution is given below

Q: the following Query on the books table from book store database. Note: the table books consist of…

A: We use the SELECT command for selecting the records from database.

Q: How does SQL change table structure? What large changes are possible? Which commands apply these…

A: SQL (Structured Query Language) is employed to communicate with a database. A table structure…

Q: How do you perform a SQL JOIN operation, and what are its different types?

A: The answer is given in the below step

Q: 6) What is the difference between an INNER JOIN and a LEFT JOIN in SQL?

A: Joins in SQL serve as a mechanism that brings together rows from multiple­ tables based on relate­d…

Q: Explain the purpose of correlated subquery.

A: The purpose of the correlated subquery is given below.

Q: How often do SQL queries affect the table's structure? Which major adjustments need to be…

A: Structured Query Language (SQL) is a popular programming language that is used to manage relational…

Q: Write a query to list the details of all authors born in the decade of the 1980s.

A: Where clause: Only displaying information for all authors born in the decade of the  1980s. You can…

Q: difference between  Primary key; Composite key

A: Primary Key is a column in a table from which can  uniquely identify each row. It is a single…

Q: How to add a new column in SQL?

A: DBMS. A database management system (or DBMS). It is essentially just a computer-based data storage…

Q: which term defines a column or group of Columns that refers to a primary key in different table…

A: The question is asking for the term that describes a column or group of columns in a database table…

Basic SQL Queries

Structured Query Language is the full form of SQL. It is a high-level language used to communicate with a relational database. It is used for creating, storing and accessing contents of a relational database. SQL is used to write the queries which are executed using database engines like Oracle, SQL Server and so forth.