Data Definition Language (DDL): It is used for creating tables and other structures. They perform operations like, creating tables, modifying
Table Creation:
Creating table comes under Data Definition Language (DDL). Syntax for creating table is as follows:
CREATE TABLE TABLE_NAME (
Column1 datatype,
Column2 datatype,
…
);
Explanation of Solution
b.
Query:
create table company(company_name varchar2(50) primary key, city varchar2(50));
Explanation:
The above q...
Explanation of Solution
c.
Query:
create table works(employee_name varchar2(50), company_name varchar2(50), salary number(10, 2), foreign key (employee_name) references employee(employee_name), foreign key(company_name)references company(company_name));
Explanation of Solution
d.
Query:
create table manages(employee_name varchar2(50), manager_name varchar2(50) primary key, foreign key(employee_name) references employee(employee_name));
Explanation:
...
Explanation of Solution
e.
Query:
create table participated (report_number char(20) primary key, license char(20) references car, driver_id char(20) references driver, damage_amount dec(6,2) )
Explanation:
The above query is used creat...
Want to see the full answer?
Check out a sample textbook solutionChapter 21 Solutions
Database System Concepts
- What is the difference between the World Wide Web (WWW) and the Internet? Give two references from a journal along with your answer.arrow_forwardDiscuss with appropriate examples, the types of relationship in a database. Give two references from an article.arrow_forwardWhat is a cloud and why do we use it? Give one reference with your answer.arrow_forward
- What are triggers and how do you invoke a trigger on demand? give one reference with your anwer.arrow_forwardWhy is database normalization important? Give one reference with your answer.arrow_forwardDescribe the role of databases and database management systems in the context ofenterprise systems. Give two references with your answer.arrow_forward
- Is it advisable to run a test on a live database? Give reasons. Also give one reference from an article.arrow_forwardFor context and I am looking for someone with experience in either computer graphics with companies, or at least has an expertise or experiences in engine development.I am developing a game engine. The niche that I want to focus in open-world development to specialize in.I have seen, heard, and had discussions about various approaches to scene graphs and ways they get handled to be sent to the renderer.If I wanted to focus on open-world, what are different tips and approaches you can tell me of how complex scenes. Like open-world get rendered? What I mean when asking this question, what is the design layout typically of a few approaches that is used for rendering not just basic scenes but complex scenes? Especially since I want to focus on building a game engine that hopes to focuse in open-world.I am using the entity component system framework EnTT, and would like to know if you can also provide tips and how that framework can be incorporated into the design layouts of how you've…arrow_forwardPlease original work Describe the steps of the process of data discovery Why each one is important to data analysis and data warehousing frameworks. Please cite in text references and add weblinksarrow_forward
- The following is code for a disc golf program written in C++: player.h: #ifndef PLAYER_H #define PLAYER_H #include <string> #include <iostream> class Player { private: std::string courses[20]; // Array of course names int scores[20]; // Array of scores int gameCount; // Number of games played public: Player(); // Constructor void CheckGame(const std::string& courseName, int gameScore); void ReportPlayer(int playerId) const; }; #endif // PLAYER_H player.cpp: #include "player.h" #include <iomanip> Player::Player() : gameCount(0) {} void Player::CheckGame(const std::string& courseName, int gameScore) { for (int i = 0; i < gameCount; ++i) { if (courses[i] == courseName) { // If course has been played, check for minimum score if (gameScore < scores[i]) { scores[i] = gameScore; // Update to new minimum score } return; // Exit after…arrow_forwardWhat is the cyclomatic complexity of the diagram below, and how did you find it?arrow_forwardWrite the following code segment in MARIE’s assembly language:if X <= Y thenY = Y - 1;else if X != Zthen Y = Y + 1;else Z = Z - 1arrow_forward
- Database System ConceptsComputer ScienceISBN:9780078022159Author:Abraham Silberschatz Professor, Henry F. Korth, S. SudarshanPublisher:McGraw-Hill EducationStarting Out with Python (4th Edition)Computer ScienceISBN:9780134444321Author:Tony GaddisPublisher:PEARSONDigital Fundamentals (11th Edition)Computer ScienceISBN:9780132737968Author:Thomas L. FloydPublisher:PEARSON
- C How to Program (8th Edition)Computer ScienceISBN:9780133976892Author:Paul J. Deitel, Harvey DeitelPublisher:PEARSONDatabase Systems: Design, Implementation, & Manag...Computer ScienceISBN:9781337627900Author:Carlos Coronel, Steven MorrisPublisher:Cengage LearningProgrammable Logic ControllersComputer ScienceISBN:9780073373843Author:Frank D. PetruzellaPublisher:McGraw-Hill Education