32 Questions
What does SQL stand for?
Structured Query Language
When did SQL become a standard of the American National Standards Institute (ANSI)?
1986
Which organization standardized SQL in 1987?
International Organization for Standardization (ISO)
Which statement is used to drop an existing database in SQL schema?
DROP DATABASE DatabaseName;
What is the purpose of SQL?
Storing and retrieving data in databases
What is the SQL syntax to create a new database?
CREATE DATABASE dbname;
What is the purpose of the SQL USE statement?
To select an existing database for operations
What does RDBMS stand for?
Relational Database Management System
Which statement is used to find all current database names or check for available databases in SQL server?
SELECT * FROM sys.databases;
What does a table consist of in SQL?
Columns and Rows
What are the categories of data types offered by SQL Server?
Exact, Approximate, and Date Data Types
To build a website that shows data from a database, what is needed?
A server-side scripting language and an RDBMS database program
What is the purpose of SQL data types?
To specify the type of data of any object in SQL
What is the role of SQL in building a website that shows data from a database?
To use SQL to retrieve the data needed
What statement is used to select any existing database in SQL schema before starting operations?
USE DatabaseName;
What does the basic syntax of the DROP DATABASE statement look like?
DROP DATATBASE DatabaseName;
What is the definition of data?
Raw data, which have no meaning and are difficult to understand
What is the role of a Database Management System (DBMS)?
Storing, maintaining, and accessing database files
Which term refers to processed data, organized, structured or presented in a given context so as to make it useful?
Information
What does a database consist of?
Related data stored in a central location or multiple locations
What is the primary function of a Database?
Processing raw data into meaningful information
Which term refers to information evaluated and organized so that it can be used purposefully?
Knowledge
What is the main purpose of a database?
Storing, managing, and retrieving information
What type of data can be stored in a database?
Textual, images, audio, videos, and programs
What is the advantage of using a database over a spreadsheet for managing large amounts of data?
Data can be sorted easily and imported into other applications
What type of database application stores and analyzes maps, weather data, and satellite images?
Geographic information systems (GIS)
Which sector would benefit from using a database to manage production, inventory, orders, and supply chain?
Manufacturing
What does OLAP stand for in the context of databases?
Online Analytical Processing
What feature allows more than one person to access the same database at the same time?
Concurrency control
In what format can data be stored in a database?
.txt
What is the primary function of a real-time and active database technology?
Control of industrial and production processes
When should a database be used instead of a spreadsheet?
When the information is a large amount that would become unmanageable in spreadsheet form and is related to a particular subject.
Study Notes
SQL Basics
- SQL stands for Structured Query Language.
- SQL became a standard of the American National Standards Institute (ANSI) in 1986.
SQL Schema Management
- The DROP DATABASE statement is used to drop an existing database in SQL schema.
- The syntax to create a new database in SQL is
CREATE DATABASE database_name;. - The USE statement is used to select an existing database in SQL schema before starting operations.
RDBMS
- RDBMS stands for Relational Database Management System.
Database Concepts
- A table in SQL consists of rows and columns that store and organize data.
- SQL Server offers two categories of data types: system data types and user-defined data types.
- SQL data types define the type of data a column can hold in a database.
Database Applications
- To build a website that shows data from a database, a database management system, a web server, and a programming language are needed.
- SQL plays a crucial role in building a website that shows data from a database by managing and providing access to the data.
Data and Information
- Data refers to raw, unorganized facts and figures.
- Information refers to processed data, organized, structured, or presented in a given context to make it useful.
- A database consists of an organized collection of data, typically in a digital form.
Database Management
- A Database Management System (DBMS) is a software system that allows defining, creating, maintaining, and manipulating databases.
- The primary function of a database is to store, organize, and provide access to data.
Advanced Database Concepts
- A geographic information system (GIS) database stores and analyzes maps, weather data, and satellite images.
- Manufacturing sector can benefit from using a database to manage production, inventory, orders, and supply chain.
- OLAP stands for Online Analytical Processing in the context of databases.
- The feature that allows more than one person to access the same database at the same time is called concurrency control.
- Data can be stored in a database in various formats, including text, images, and audio.
Real-Time Databases
- The primary function of a real-time and active database technology is to support high-performance, event-driven applications.
Choosing between a Database and a Spreadsheet
- A database should be used instead of a spreadsheet when managing large amounts of data, especially when data needs to be shared, accessed, and updated by multiple users.
Test your knowledge about the outline of Database Lecture 1, covering the Introduction to SQL, its functionality, and usage in web development. Explore topics like creating, dropping, and listing databases, as well as SQL data types and RDBMS concepts.
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