Why does entering “SQLPLUS/ AS SYSDBA” in the command line works? What user do you become? Is this a potential security risk?

Q: The Marketing team wants to collect emails of the users on InstantStay. However, the team needs a…

A: SELECT statement: - This statement is used to select the dataset/record from the table. And the…

Q: What is the evaluation order for the Boolean operators (AND, OR, NOT) in an SQL command?

A: What is the evaluation order for the Boolean operators (AND, OR, NOT) in an SQL command?

Q: When working with an Oracle database, which of the following is considered an | advantage of PL/SQL?…

A: When working with an Oracle database,an advantage of PL/SQL

Q: What is the output of the following SQL statement? SELECT name, hCity, pcity, population FROM…

A: Answer: Output 3

Q: How do you execute multiple SQL statement using a DataReader?

A: DataReader - DataReader and DataSet are two common objects in ADO.NET that are used to read data. If…

Q: How do you perform in Access?

A: MS Access is a database management system through which you can create, manipulate, maintain and…

Q: Among the following shortcut is used to clear all bookmarks in SQL server Management studio? a)…

A: Question. Among the following shortcut is used to clear all bookmarks in SQL server Management…

Q: Attach db sql outputs.  On command line

A: I have give the answer for both of the fill-in-the-blanks with an explanation: I give the output of…

Q: What Is A Savepoint Command? ii. What Are Pseudo-columns? iii. How Can You Use Pseudo Columns In…

A: Note: "since you have posted multiple questions and according to our guidelines we are authorized to…

Q: Describe the SQLiteOpenHelper and SQLiteCursor classes and their use in CRUD operations.

A: The answer is given in the below step

Q: On a SQL terminal for (e.g., sqlite3) someone type the following: select ‘456’; What is expected as…

A: Answer: The correct option is “(a) the number is 456”

Q: create a SqlConnection in C#

A: You can interface your C# application to information in a SQL Server data set utilizing the .NET…

Q: Before using SQL statements, which objects should be checked if they are null or not and throw…

A: Given that Before using SQL statement which objects should be checked if they are null or not and…

Q: when I do a scan to my website throw the ZAP tool it appears that I have SQL injection !! how can I…

A: Description: SQL injection is a type of online security flaw that allows an attacker to tamper with…

Q: Which component you will use if you want to send output to Oracle table in Talend Job? only output…

A: The component we use to send output to Oracle in Talend job is

Q: This is a computer science question relating to SQL:   Write out a scenario where:   -You would…

A: The answer is as follows.

Q: Write a SQL command to perform the following operations by using this schema BOOKS(BookID, Book…

A: CREATE TABLE BOOKS(BookID int,Book_Name varchar(100),Author varchar(50),Publisher varchar(50),ISBN…

Q: What is SqlCommand Object?

A: A SqlCommand object allows the user to specify what type of interaction a user wants to perform…

Q: Compare exception handling and handling of warnings in embedded amic SQL, JDBC, and SQLJ.

A: Exception handling is the process of handling the occurrence of errors during computer programming.…

Q: How does Oracle 12c identify a substitution variable in an SQL command?

A: Substitution variable:   The Oracle 12c has an SQL command known as the substitution variable. It is…

Q: Write a SQL command to perform the following operations by using this schema: BOOKS(BooklD, Book…

A: 1) CREATE TABLE BOOKS( BookID int NOT NULL, Book_Name varchar(50), Author varchar(50), Publisher…

Q: Please provide a description of the SQLiteOpenHelper and SQLiteCursor classes, including an…

A: Given: Android includes an utility class known as SQLiteOpenHelper to manage activities related to…

Q: Try these commands and comment the role for each command. 1) SQL> conn sys as sysdba Password :…

A: Given 10 SQL commands and these have their own role and perform different action. 1) conn sys as…

Q: Give some of the advantages of SQL-invoked routines?

A: SQL-invoked routines SQL (Structured Query Language)-invoked routines are procedures or functions;…

Q: What is the SqlCommandBuilder, and how does it work?

A: Introduction: The SqlCommandBuilder is a class which is utilized for generating SQL queries based on…

Q: How frequently should one clear their data? Do you have any instances to back up your statement?

A: the backup copy is a copy or archive of important information stored on your devices such as your…

Q: What exactly are triggers? What function do they serve? How do you use Access 2016 to get the…

A: What exactly are triggers? Answer: Triggers are  SQL procedure that automatically performs the…

Q: Give an example of a stored procedure written in Oracle’s PL/ SQL that is intended to check whether…

A: Here have to determine about Oracle procedure of user name already exists in the database.

Q: You are providing a recommendation to use input validation on a web application.  Answer the…

A: What is SQL Injection Attack? SQL injection, also known as SQLI, is a common attack vector that uses…

Q: In the SQL Oracle Application Write one query to return the employee_id, job_id, hire_date, and…

A: COMMANDS USED: Select command is used for the purpose of selecting the data from the database. The…

Q: why is this sql create in error ?  how to make it correct ? Error starting at line : 5 in command…

A: Solution is given below

Q: .Give an overview of the SQLiteOpenHelper and SQLiteCursor classes, including how they're used in…

A: Data Storage: A successful firm depends on its ability to store data. You need to keep track of all…

Q: Write syntax for two different methods to insert data into table in SQLite?

A: Q. Write syntax for two different methods to insert data into table in SQLite?  Answer. The syntax…

Q: the SQL lite storage classes

A: Each value stored in an SQLite database (or manipulated by the database engine) has one of the…

Q: This is a valid SQL statement: Values stored in a table, but not in an Oracle instance, are stored…

A: Given: This is a valid SQL statement: Values stored in a table, but not in an Oracle instance, are…

Q: Which SQL statement below does the following MongoDB script most closely correspond to?…

A: Above query answer in below step.

Q: A 'bank' table was built in SQL by Pooja. Later, she discovered that the table should have included…

A: Please refer below for your reference:

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.