Explain clearly the following terms:   1. Clustered index   2. Outer join between two tables   3. Isolation property of transactions

Q: What do you mean by nested transaction? Explain the usage of locks in nested transaction.

A: Given Data nested transactions And usages of locks in nested transaction

Q: Produce a list of the names of all employees who work on the Biometric project. Produce a report of…

A: Given employeee , department, project, workson tables they are joined tables. Using the given keys…

Q: Consider the following relation: Customer (CID, name, email, address) Now write Mysql query to…

A: CREATE TRIGGER trg_EMAIL ON EMAIL_CHANGE AFTER INSERT, UPDATE AS IF ( UPDATE (cid, oldemail,…

Q: 4. You are working with a database table that contains invoice data. The table includes columns for…

A: The query for the above given question is given below:

Q: Discuss the ACID properties of a transaction with the help of code example.

A: A transaction is a single logical unit of work which accesses and possibly modifies the contents…

Q: Suppose your company has built a database application that runs on a centralized database, but even…

A: In a centralized system, to handle the transaction load, query performance has to be improved.Query…

Q: Given the following ER diagram. (1) How many tables should be created _(2) Translate the diagram…

A: Part 1:  For given ER diagram we need to create 4 tables . That are Account , Transaction, Checking…

Q: You are working with a database table that contains invoice data. The table includes columns for…

A: Solution : Use DISTINCT operator in the SELECT clause to remove duplicate rows from the result set.…

Q: Do you think optimistic or pessimistic locking would be better for the Service Update Transactions?

A: Lets see the solution.

Q: 35. Key to represent relationship between tables is called a. Primary key b. Secondary Key c.…

A: Please find the answer to the above question below:

Q: Describe transaction-level consistency. What disadvantage can exist with it?

A: Lets see the solution.

Q: To begin, you will need to create a transaction in the database. In the next conversation, we are…

A: Data Base: In the context of database transactions, a database transaction is a unit of work done…

Q: can't see my list view activity

A: Understand you are trying to develop a Transaction Processing System using Andriod Stdio and…

Q: The joining of two or more tables is frequently required while executing database queries. That's…

A: Here is the solution which is mentioned below :

Q: Q5/ What is the use of nonce in transactions with the structure of transactions in question 1?…

A: Nonce is a unique and arbitrary number which is used to prevent the reply attacks. This is encrypted…

Q: ntrast Transaction log and Database change log.

A: Required: Contrast Transaction log and Database change log.

Q: Explore the index mechanisms used that used by both SQLite and MySQL. What kinds of indexes do each…

A: Indexing is effective  way for  optimizing  the performance of a database by minimizing the number…

Q: Pick at least three different NOSQL database from the same type that assigned to your team.…

A: 1) Key Value stores: The data is stored in the form of key-value pairs. For every key the value is…

Q: Answer to the following questions Write an SQL statement to create tables with details given below…

A: In this question, we are asked to write an SQL statement to create table CLIENT_DETAILS. SQL creat…

Q: EXPLAIN THE FOLLOWING TERMS 1. Clustered index   2. Outer join between two tables   3.…

A: Explained the given terms

Q: Consider the following relations database schema. The primary key is underlined, and all attributes…

A: Dear Student, The SQL queries are given below, SELECT branch_name FROM branch JOIN customer WHERE…

Q: You are provided with the Entity-Relationship Diagram below. Which of the following lines would…

A: The above question is answered in step 2 :-

Q: Assignment 4: Question#1: Give any three examples of transaction where next operations are…

A: A transaction is a set of tasks to perform and complete a particular operation. To keep the…

Q: To begin, you must first create a transaction in the database. In the discussion that follows, we'll…

A: In light of the query Devices linked to your network are shielded from internet intruders by a home…

Q: Explain the anomalies in relational database. ii) Explain natural join with example.

A: Actually, database is a used to stores the data.

Q: Consider the data warehouse schema depicted in Figure 11.2. Give an SQL query to summarize sales…

A: Explanation: Based on the data warehouse schema depicted, the below query will summarize the sales…

Q: Question Write rules for connecting of nested transaction.

A: Rules for connecting of nested transaction are given below:-

Q: In SQL Repeating groups must be eliminated by making sure that each row defines a single entity.…

A: Primary Key is used to uniquely identify each row in a table

Q: Answer the following questions according to below database schema figure. a. State the names of all…

A: /Name of tables: customers staffs  orders stores order_items

Q: database audit trail? Explain briefly in not more than 60 words, how SQL Server utilizes Extended…

A: database audit trail ,  SQL Server utilizes Extended Events

Q: . Clustered index   2. Outer join between two tables   3. Isolation property of transactions

A:

Q: 4. Create the Order_Product table as follows: • id is the primary key and its data type is serial…

A: 4. Query: CREATE TABLE Order_Product(    ID serial NOT NULL PRIMARY KEY,    quantity int NOT NULL…

Q: Assume your business has developed a database application that operates on a centralized database,…

A: A database is a structured database collection. They facilitate electronic data storage and…

Q: Question 2. Using MySQL workbench implement the conceptual model of ABC online bookshop and submit…

A: Solution

Q: State nine rules of thumb for choosing indexes.

A: State nine rules of thumb for choosing indexes.

Q: ure1) up to at least 3NF.

A: Attributes, Each entity is described through a set of attributes (eg., Employee = (Name, Address,…

Q: Answer to the following questions Write an SQL statement to create tables with details given below…

A: Syntax for creating primary key:-  create table tableName( columnName datatype primary key); Syntax…

Q: Which of the following is NOT an advantage of normalization? a) Multi-table queries run faster b)…

A: Normalization means dividing the tables in order to reduce the redundancy present in the table.…

Q: Question 6 Transaction 1: Set Transaction Isolation Level Repeatable Read; Select count(*) Froe R;…

A: Note: There are multiple questions are given in one question. According to the rule, you will get…

Q: Explain how entities are transformed into tables

A: Given: Explain how entities are transformed into tables

Q: database joins expensive (take

A: According to the question we need to tell why are database joins expensive (take a lot of time and…

Q: INDEX function to search for data in a sorted list

A: Given :- In the above question, Index and Match function is mention in the above given question…

Q: What are the steps involved in SET Transaction?

A: SET: SET stands for secure electronic transaction is nothing but a system that gives the major…

Single Table

In a database management system, a single table is designed to obtain data of heterogeneous items. A single-table design with DynamoDB resolves the issue of raising multiple requests for the relevant data of an entity.