Create Ecommerce Website Tutorial : Part 14 Create Product Table Database Make / Create a modern E-Commerce Store website In php, mysqli and bootstrap with complete functionalities in a single course. Please help me reach 10k subscriber. It will boost my mood to make more video tutorial from the knowledge I have for free. 👇 The source code link at the very bottom 👇 🤔 What Will You Learn? 🤔 -You will learn how to make an Elegant Ecommerce Website -You Will learn hot to create Content Management System ( CMS ) -You will learn how to make price,products and types filters. -You will learn making the coupon code for products and bundles. -You will learn how to make bundles for products. -You will be able to set the sale and original both of prices for products and bundles. -You will be able to set the different labels for products and bundles like sale,gift etc… -You will be able to make paypal integration with any e-commerce website. -You will learn to make forgot password functionality. -You will learn to add google recaptcha in your website register and contact us information form. -You will learn to make email confirmation functionality. -You will learn to make add to wishlist functionality. -Admin will be given complete access to admin panel to control everything dynamically. -In short, at the end of my course,You will be able to make any kind of modern e-commerce store in php&mysqli with the assistance of bootstrap 3. 👉 Requirements 👈 -Localhost server like XAMPP or WampServer (i use Xamp v3.2.2) -Text editor (i use Bracket) -Browser (i use Firefor & Chrome) 👍 Description 👍 I have made a modern e-commerce store for those who want to learn making any kind of e-commerce store by purely using php and mysqli functions with the assistance of bootstrap frame work to make it complete responsive and dynamic. Often people use bootstrap for this purpose and the good thing of the usage of bootstrap kinds of frame work is that You can easily make any kind of theme responsive without indulging themselves in any complicated issues. Therefore I have made this e-commerce store to make the You fully expert over all the essential php & mysqli functions and bootstrap frame work. So I am very hopeful that, after watching this tutorial course and learning it, you will get a good control over making any kind of advance level responsive plus dynamic e-commerce web site with all its complete functionalities with the assistance of bootstrap, php & mysqli. I have focused to make the You fully experts in the usage of all the essential php & mysqli functions and bootstrap,so you could learn their usage very well. 😭Sorry for not being able to provide the best service for this video tutorial. I had major isues, when almost all my development devices was damaged by lightning strike. -Headset -Microphone -PC (Motherboard & Ram) -Etc If you are willing to donate to me. That will really help me. And this will make it easier for me to continue to share the knowledge that I have for free. Use this link to donate: https://tinyurl.com/donate-to-mdev So Grab your Tea / Coffee, Because this will be a very long series to learn. Have a good day. Source Code: https://tinyurl.com/db-insert-product-mdev For Tinymce: https://tinyurl.com/tinymce-mdev If the link broken, please leave a comment #CreateEcommerceTheme, #EcommercePHPTutorial, #CreateEcommerceFromScratch, #EcommerceCMS
Views: 2099 M-Dev Media
Learn how the database of WordPress is build. Add posts and pages using directly the database without the help of the Admin panel. Take a look the database structure of WooCommerce. Discover the fact that all entities (posts, pages, products, images, menu items etc.) are in fact records (objects) in the "posts" table. "postmeta" table gives a taste of NoSQL (schemaless) and adds great flexability to the system. Learn different approaches for using a persistent layer (databases) in your application.
Views: 11445 Stoyan Cheresharov
Hello Friends, In this video tutorial you can learn how to relationship product table in purchase sale database in access. I hope you like this tutorial Thanking you For more Pls visit www.youtube.com/c/MCiTech #tabledesign#accesstable
Views: 348 MCi Tech
Views: 55040 CodAffection
Database design method for a eCommerce site. This is just staring of creating a database for ecommerce site. We will extends our feature during our video series. In this video i miss the price field for product table will modify in next video
Views: 4196 How To
Do you want to learn, How to show data from MySQL database on HTML Table using PHP under 4 minutes? In this video, you will learn which query is used to extract data from a database. Make a connection between HTML Table and MySQL database using PHP. And also about some CSS to make HTML Table looks better. Source Code: http://bit.ly/2Q81lYo Video with database: https://youtu.be/8G7271LAyHY HTML Table Tutorial: https://youtu.be/LIjdXgfC5zM Twitter : https://twitter.com/CodeAndCoins Google+ : https://goo.gl/7vjhrp Blog : https://CodeAndCoins.blogspot.com Share this Video and Subscribe to my channel #CodeAndCoins
Views: 109729 Code And Coins
Database Normal Forms with Examples. In this video I show you how to normalize your relational database. What is covered: --1st Normal Form and Atomic Values --2nd Normal Form and Partial Dependence --3rd Normal Form and Transitive Dependence --4th Normal Form and Multi-Value Facts I start with smaller examples for 1NF, 2NF, 3NF, and 4NF. Then I move into a more comprehensive example that uses all of the normal forms together. TABLE OF CONTENTS 1st Normal Form 1:07 2nd Normal Form 4:18 3rd Normal Form 9:44 4th Normal Form 13:50 Normalizing Customer Orders 17:33 Customer Table (2NF) 20:35 Product Table (2NF) 21:55 Order Header vs Order Lines 24:20 Product Table (3NF) 29:05 Customer Table (1NF, 4NF) 31:25 DOWNLOAD THE EXCEL FILE HERE http://www.sqltrainingonline.com/SQLNormalizationExcel READ THE ORIGINAL ARTICLE WITH EXCEL FILE HERE http://www.sqltrainingonline.com/sql-database-normalization/ YOUTUBE NEWS UPDATES http://www.youtube.com/user/sqltrainingonline VISIT SQLTRAININGONLINE.COM FOR VIDEOS & TIPS http://www.sqltrainingonline.com SUBSCRIBE FOR OTHER SQL TIPS AND NEWS! http://www.youtube.com/subscription_center?add_user=sqltrainingonline SUBSCRIBE TO OUR EMAIL LIST! http://www.sqltrainingonline.com LET'S CONNECT! Facebook: http://facebook.com/SQLTrainingOnline Twitter: http://twitter.com/sql_by_joey Linkedin: http://linkedin.com/in/joeyblue SQLTrainingOnline: http://www.sqltrainingonline.com
Views: 14648 Joey Blue
WP Table Manager got a tool to generate tables from a selection of database data. Select some tables, columns from the database, apply some optional filters then manage table from WP Table manager interface. Your table is incremented automatically on database updates! Furthermore you got some sorting, filters, automatic design, pagination automatically applied. More information: https://www.joomunited.com/wordpress-products/wp-table-manager
Views: 1948 Joomunited ju
Donate!: http://bit.ly/DonateCTVM2. Child tables reference a primary key using a foreign key. This helps us design our relationships properly. Later in this series we will learn how the child table inherits values from the parent table and (in some instances) cannot exist without the parent (FK constraints). Learn more about parent-child tables here: https://www.calebcurry.com/blogs/database-design/parent-child-tables More content: http://CalebCurry.com Courses for Download: http://www.udemy.com/u/calebcurry/ Facebook: http://www.facebook.com/CalebTheVideoMaker Google+: https://plus.google.com/+CalebTheVideoMaker2 Twitter: http://Twitter.com/calebCurry Subscribe (it's free!): http://bit.ly/PqPyvH Amazing Web Hosting - http://bit.ly/ccbluehost (The best web hosting for a cheap price!)
Views: 29770 Caleb Curry
In this tutorial you will learn how to create a table in phpMyAdmin for a MySQL database, and how to insert data into the table, followed by how to set up a foreign key, so that the values of one column in the one table refer to values of a column in another table.
Views: 136065 Magic Monk
Transfer Microsoft SQL Server Database into Hadoop using SQL Server Data Tools Preview in Visual Studio 2015 (SSDT).
Views: 1936 tiger
DBMS: Cartesian Operator: Cartesian operator: - Binary product, Videos by Edupedia World(www.edupediaworld.com) Click on (https://www.youtube.com/playlist?list=PLJumA3phskPGizTWslOuX0sQFTQOzkEy7) for more Videos. All Rights Reserved.
Views: 190 Edupedia World
Microsoft SQL Server is a relational database management system developed by Microsoft. As a database, it is a software product whose primary function is to store and retrieve data as requested by other software applications, be it those on the same computer or those running on another computer across a network (including the Internet). There are at least a dozen different editions of Microsoft SQL Server aimed at different audiences and for different workloads (ranging from small applications that store and retrieve data on the same computer, to millions of users and computers that access huge amounts of data from the Internet at the same time). Its primary query languages are T-SQL and ANSI SQL. Soundtrack: by "I dunno" by grapes http://ccmixter.org/files/grapes/16626 is licensed under a Creative Commons license: http://creativecommons.org/licenses/by/3.0/
Views: 38733 Roast
Download files at: https://people.highline.edu/mgirvin/AllClasses/216_2003/216/busn216.htm This video goes with the Highline Community College Busn 216 Computer Applications Class Access 2013. Topics Covered In Video: 1. Create a database (01:07 min) 2. Import Supplier Data Table From Excel into Access (02:32 min) 3. Add Data Type and Field Properties (Data Validation) to Supplier Data Table (04:34 min) 4. Create Form For Supplier Data Table (13:52 min) 5. Test Supplier Data Table(13:52 min) 6. Create Product Table (17:15 min) 7. Add Primary Key, Data Type and Field Properties (Data Validation) to Product Table (17:15 min) 8. Create Lookup using Lookup Wizard (22:27 min) 9. Create One To Many Relationship (24:19 min) 10. Create Form For Supplier Data Table (27:46 min) 11. Test Products Table (27:46 min) 12. Enter Raw Data Into Form (27:46 min)
Views: 109904 ExcelIsFun
Views: 40772 CodAffection
Download File: https://people.highline.edu/mgirvin/excelisfun.htm **Note; The word "Database" is used loosely in this video. We use it just to mean we have a dynamic table to store raw data. Overview of video: 1) Build Invoice Database with Excel 2016 Table feature 2) Learn how Excel Table feature automatically carries formatting and formulas to new records 3) Learn how to use Table Formula Nomenclature / Structured References for Excel Table formulas 4) Learn about Dynamic Ranges with Excel Table feature 5) VLOOKUP and MATCH functions to lookup Invoice Details Full Detailed list of what is in video including time hyperlinks: 1) (00:11) Look at finished database and VLOOKUP formula to understand what the goal of the video is. 2) (02:00) Database must be a Proper Data Set: 1) Field Names in First Row, 2) Records in subsequent Rows, 3) Empty Cells or Excel Column/Row Headers Around Data Set 3) (03:07) Add Bold Format to Field Names / Column Headers so database interprets headers correctly 4) (04:42) Custom Date Format to Date Field. This is carried forward to new records in Excel Table Database. 5) (05:58) Add word wrap to Product Description. This is carried forward to new records in Excel Table Database. 6) (06:05) Add Number Formatting: Currency and Percentage to number fields. This is carried forward to new records in Excel Table Database. 7) (06:58) Add formula for Amount owed after discount, tax rate and shipping. See the ROUND function. This is carried forward to new records in Excel Table Database. 8) (10:05) Convert Proper Data Set to Excel Table with Ctrl + T. Excel Table feature is Excel’s Database feature. 9) (11:32) Add new column to database for Balance Due. Learn about Table Formula Nomenclature / Structured References for Excel Table formulas. 10) (11:53) Name the Table. 11) (14:30) Add new records to test database. 12) (16:39) Add Proper Field names using Table Formula Nomenclature / Structured References for Excel Table formulas in the lookup area. Learn about relative references in Table Formula Nomenclature / Structured References for Excel Table formulas. 13) (18:50) Add Data Validation Drop Down List for invoice lookup. 14) (19:44) Create VLOOKUP and MATCH Lookup formula to lookup Invoice Detail. Learn about how to lock (absolute) references in Table Formula Nomenclature / Structured References for Excel Table formulas. 15) (24:46) Test database and lookup formulas. 16) (25:21) Summary and Conclusion For more videos about The Excel Table feature and Table Formula Nomenclature (Structured References): https://www.youtube.com/playlist?list=PLrRPvpgDmw0kmoAhXamTJw6XkebJ6gCxg
Views: 95260 ExcelIsFun
Highline College Busn 216 Class: Computer Applications taught by Michael Girvin. Download files: https://people.highline.edu/mgirvin/AllClasses/216v2016/Content/05Access/Access.htm Topics in this Video: 1. (00:01) Introduction 2. (01:56) Create New Database 3. (03:52) Save and Default Table (we’ll edit later) and talk about data that goes into table. 4. (05:36) Import SupplierData Table from an Excel 5. (08:08) Data Types & Field Properties for SupplierData Table 6. (18:48) Create a Product Table and add Data Types and Field Properties 7. (26:00) Data Type Lookup Wizard to Create a One-To-Many Relationship 8. (28:55) Data Type Lookup Wizard to Two Item Lookup 9. (30:43) Relationship Window to add "Referential Integrity" 10. (32:56) Create a Form for the Products Table 11. (34:54) Test Data Validation of Data Types and Field Properties 12. (34:54) Add Raw Data using Products Form 13. (39:41) Summary
Views: 10590 ExcelIsFun
Hello Friends, In this video tutorial you can learn how to create purchase, sales database table relation in access.I am going to show you a example database table relation where include table product ,sale entry, sale details,purchase entry, purchase detail and Sales account .Pls watch this tutorial I hope you like this tutorial Thanking you You can watch ----------------------------------------------------------------------------------------------------------- Purchase Sale Database Table Relation in Access -Part 2 https://youtu.be/5KPZ8uwjVyU GST Invoice Database Table relation in access - Part1 here https://youtu.be/gdENISIHw_Y GST Invoice Database table relation in access Part 6b - include Bill table https://youtu.be/oOX6IP0mkhk GST Invoice Database Table Design in access Part 7 https://youtu.be/LigFiEfSFeg GST Invoice Database Table relation in access - Part1 here https://youtu.be/gdENISIHw_Y GST Invoice Database table relation in access Part 6b - include Bill table https://youtu.be/oOX6IP0mkhk GST Invoice Database Table Design in access Part 7 https://youtu.be/LigFiEfSFeg -------------------------------------------------------------------------------------------------------- For more Pls visit www.youtube.com/c/MCiTech #purchasesaleentrysoftware
Views: 1369 MCi Tech
3-Project1- Create Table of Products into MySQL Database from phpMyAdmin
Views: 109 Adel Sabour
Facebook - https://www.facebook.com/TheNewBoston-464114846956315/ GitHub - https://github.com/buckyroberts Google+ - https://plus.google.com/+BuckyRoberts LinkedIn - https://www.linkedin.com/in/buckyroberts reddit - https://www.reddit.com/r/thenewboston/ Support - https://www.patreon.com/thenewboston thenewboston - https://thenewboston.com/ Twitter - https://twitter.com/bucky_roberts
Views: 344502 thenewboston
Views: 264862 Clever Techie
How to Create database,table,insert,update,delete ,through sql query How to insert data in table
Views: 252900 Programming School
music by Nishang Yonjan - http://youtube.com/enspiremusic
Views: 236 Arjun Yonjan
http://ytwizard.com/r/YCMmxm http://ytwizard.com/r/YCMmxm Complete Filemaker Invoice database A complete course to creating your own Filemaker Database system from scratch to automate your company's paperwork.
Views: 97 Azrul Ck
ecommerce database table design - brands, categories and subcategories Axure Pro 7 music: Nishang Yonjan (http://youtube.com/enspiremusic)
Views: 20522 Arjun Yonjan
How to connect Mysql Database with Laravel. How to Configure database connection in Laravel 5. How to create Mysql table from Laravel application. How to make Database connection in Laravel and create table and migrate table from Laravel application to Mysql database. For Source Code - http://www.webslesson.info/2018/01/insert-update-delete-in-mysql-table-laravel-tutorial.html
Views: 29453 Webslesson
How To Show Image From Mysql Database To JTable In Java Source Code:http://1bestcsharp.blogspot.com/2015/06/java-mysql-display-image-JTable.html ------------------ Check out my Java Projects! -------------------- ▶ Inventory Management System - http://bit.ly/Java_Inventory ▶ Students Information System - http://bit.ly/JavaStudent_System ▶ Contacts Management System - http://bit.ly/Java_Contacts ▶ All My Programming Projects Here - http://bit.ly/2HrU8hK ▶ My Source Code Store Here - http://bit.ly/2OsC0TU -------------------------- JAVA COURSE ----------------------------- ▶ master Java core development step-by-step - http://bit.ly/2HXSuAn -------------------------------------------------------------------- visit our blog https://1bestcsharp.blogspot.com/ facebook: https://www.facebook.com/1BestCsharp twitter: https://www.twitter.com/1BestCsharp_ subscribe: http://goo.gl/nRjPKk *************************************************************************** *************************************************************************** C# And Java Programming Projects With Source Code: http://1bestcsharp.blogspot.com/p/programming-projects.html *************************************************************************** *************************************************************************** in this java tutorial we will see how to Display pictures from mysql database to a jtable in java netbeans we are gonna use: java programming language MySQL Database NetBeans Ide other videos: Connect Java To MySQL Database https://www.youtube.com/watch?v=zM7oe2_S-jY Bind a JCombobox With Mysql Database Values https://www.youtube.com/watch?v=23-90p2xceg Search Values From MySQL Database And Set It Into JTextfield https://www.youtube.com/watch?v=uuhEb0k3vVE bind jtable from mysql database in netbeans https://www.youtube.com/watch?v=G4JeKZ6nDUI Bind JTable From MySQL DataBase Using ArrayList https://www.youtube.com/watch?v=2d4i6BXQPFA Populate JCombobox Depending On Another JCombobox https://www.youtube.com/watch?v=O_aSNfGSD20 Populate JTable Depending On a JCombobox Value https://www.youtube.com/watch?v=9NO0AHxvgio How To Use Stored Procedure In Java And MySQL https://www.youtube.com/watch?v=pux1p52ZaQw Insert Update Delete Data In Database https://www.youtube.com/watch?v=uKEgKETRCzE How To Bind a HashMap From DataBase In Java https://www.youtube.com/watch?v=WAIcC3pl94o Populate JCombobox From MySQL With Key And Value https://www.youtube.com/watch?v=gheAMX-MGN8 Get JTable Column Sum, Avarage, Max, Min Value https://www.youtube.com/watch?v=ZCfk6S2BksA Java Swing Programming Course - Java Swing (GUI) Programming: From Beginner to Expert Course By John Purcell https://www.youtube.com/watch?v=RzZsGbTsb7Y
Views: 53764 1BestCsharp blog
Hello everyone. This is another PHP / MySQL tutorial about how to filter data from a MySQL Database Table using PHP. As always, i have to apologize for my bad English. Feel free to mute the audio and watch the tutorial instead. I hope you find this tutorial useful. Cheers and peace to all of you.
Views: 97741 TheEndritv
Add basic functions of insert, update, delete, query for SQLite in swift 3, Xcode 8 project.There are some steps: 1. Implement some database functions in DatabaseManagement class: create Product table with id, name, imageName; add Product record, return new Product's id if success. 2. Add method to list all products inside local sqlite database 3. Create Product class to save Product model. Each Product record will be saved here. 4. Add method for updating existing Product's record. Input parameter is product's id. 5. Add function to delete Product's record from sqlite database. You can download code here: https://github.com/sunlight3d/ios_swift_development.git SUBSCRIBE TO CHANNEL: https://www.youtube.com/c/NguyenDucHoang Twitter: https://twitter.com/NguyenD97601913 Facebook: https://www.facebook.com/nguyen.duc.hoang.bk
Views: 10145 Nguyen Duc Hoang
Hello friends in this video tutorial You can learn how to create GST invoice Database Table relation in access, In this tutorial I am going to show you relation between Customer Table where customer id is the Primary Key, Bill Details Table where Customer id is the Foreign key and Product Table Where Product Id is the Primary Key . For details Pls watch this tutorial video I hope you like this tutorial Thanking you ------------------------------------------------------------------------------------------------------- You can watch Part 2 here https://youtu.be/rfzp050tYV4 ==================================================== For more www.youtube.com/c/MCiTech
Views: 2428 MCi Tech
Welcome , In this Video tutorial You can learn how to create pharmacy database table relationship in access -part 2 . showing you with six table PRODUCT, ORDER, CUSTOMER, EXPIRE DATE, STOCK AND SUPPLIER REF Where Relationship between together easy and simple step by step declaration . Watch this video tutorial Thank You
Views: 6516 MCi Tech
This is a tutorial which goes over how to create a PHP search which filters out results from a database table. Sorry for the mistakes made in this video, the video following this goes over how to take this and make it instant with jQuery Tutor Facebook: http://www.facebook.com/JoeTheTutor Dibbble: www.dribbble.com/sleekode www.helpingdevelop.com
Views: 464605 Joseph Smith
Hello Everyone, welcome to MCiTech So friends In this video I am going to Show you how to create GST Invoice Database Form in access, I am using three tables - Product - Product tables include different item and their price quantity, GST Rate and HSN Code . Customer - Customer table include customer Details with GSTIN number and Sale type Bill Details - Bill Details table include product, Quantity and Unit . After creating sub form with relation table Product add Price, SGSTRate and HSN code . In this Bill Detail Sub Form where i am using sum and multiplication formula display their Product Amount , SGST Amount and Total Amount Automatically . Pls watch this Video Tutorial for Detail I hope you like this Tutorial Thanking you ====================================================== You can watch Part 1 here https://youtu.be/gdENISIHw_Y ====================================================== For more www.youtube.com/c/MCiTech/
Views: 2746 MCi Tech
In this tutorial, I will show you, how to insert data into database table and how to upload picture or file by laravel 5.7 and link with product table .After this tutorial you can how to insert data into database table and how to upload picture or file by laravel 5.7 and link with product table. I hope you enjoy this tutorial,Please like, comment, share and Subscribe. Wish You Success, Shoaib Hossain (softall503s - soft all) pagination tutorial link: https://www.youtube.com/watch?v=KhI-iGOztVo Select All Data From Database In Laravel Tutorial Link: https://www.youtube.com/watch?v=Fr6px1fvGJw Insert Data In Database In Laravel Using Model And Controller Tutorial Link: https://www.youtube.com/watch?v=Fr6px1fvGJw Create Custom Login Page And Integrate Html Template In Laravel: https://www.youtube.com/watch?v=eT8Q-7t8qLo Create Admin Login Panel In Laravel Tutorial Link: https://www.youtube.com/watch?v=GklRqPVc1EM Integrate Html Template In Laravel Step By Step Tutorial Link: https://www.youtube.com/watch?v=wNg7mKbM6b4 Laravel Route View and Controller Tutorial Link: https://www.youtube.com/watch?v=LO1cvFFExFc Xampp Installation link & MySql Database Complete Tutorial: https://www.youtube.com/watch?v=QZnlY0tjmxw&list=PLH246IZCIBeA4h1R6fdgK06kj9lMb3joi
Views: 1115 Soft-All
Series: http://www.developphp.com/video/PHP#eCommerce-Website-Tutorial Source Download: http://www.developphp.com/video/PHP/PayPal-IPN-PHP-Instant-Payment-Notification-Script In this 2nd video we will create the MySQL database and its tables. We demonstrate a scripted method for database table creation in this example. The E - Commerce Web Site we will be assembling is one in which all of the inventory is in a MySQL database and we offer a custom PHP cart for a unique shopping experience. It is a site that handles sales, customers, and inventory.
Views: 238433 Adam Khoury
http://technotip.com/1802/delete-remove-records-database-table-php-mysql/ Video tutorial demonstrates deleting / removing of data / records from the database table.
Views: 76633 Satish B
How to Retrieve Data from Mysql Database in Laravel Framework. How to display data from Mysql Database table in Laravel Application. Learn How to retrieve a record or data from Mysql Database using Laravel PHP framework. For more Details - http://www.webslesson.info/2018/01/insert-update-delete-in-mysql-table-laravel-tutorial.html
Views: 18228 Webslesson
http://technotip.com/1794/update-edit-records-in-database-table-php-mysql/ Video tutorial demonstrates updating / editing of data / records from the database table and displaying it on the browser.
Views: 237141 Satish B
In this video, we take a look at saving/persisting order information into an orders table in our database. We also take a look at showing those orders in the voyager admin backend making it easier for admins to quickly glance at any new orders. GitHub Repo: https://github.com/drehimself/laravel-ecommerce-example # LINKS My courses: https://codewithdre.com Sign up for my newsletter: http://andremadarang.com/newsletter My website: http://andremadarang.com Twitter: http://twitter.com/drehimself GitHub: http://github.com/drehimself CodePen: http://codepen.io/drehimself
Views: 5535 Andre Madarang
Audio vastly improves beginning with Part 3. However, here is an updated version: https://www.youtube.com/watch?v=pjQdzlVqKOk Creating and linking tables. I have added some one-off videos for features that can be added whenever. Here is one for a City/State selector : https://www.youtube.com/watch?v=3ljoKaS6M9Q
Views: 769580 Game Design HQX
Learn more about connecting to databases with R: https://www.datacamp.com/courses/importing-data-in-r-part-2 Welcome to part two of importing data in R! The previous course dealt with accessing data stored in flat files or excel files. In a professional setting, you'll also encounter data stored in relational databases. In this video, I'll briefly talk about what a relational database is and then I'll explain how you can connect to it. In the next video, I'll explain how you can import data from it! So, what's a relational database? There's no better way to show this than with an example. Take this database, called company. It contains three tables, employees, products and sales. Like a flat file, information is displayed in a table format. The employees table has 5 records and three fields, namely id, name and started_at. The id here serves as a unique key for each row or record. Next, the products table contains the details on four products. We're dealing with data from a telecom company that's selling both with and without a contract. Also here, each product has an identifier. Finally, there's the sales table. It lists what products were sold by who, when and for what price. Notice here that the ids in employee_id and product_id correspond to the ids that you can find in the employees and products table respectively. The third sale for example, was done by the employee with id 6, so Julie. She sold the product with id 9, so the Biz Unlimited contract. These relations make this database very powerful. You only store all necessary information once in nicely separated tables, but can connect the dots between different records to model what's happening. How the data in a relational database is stored and shuffled around when you make adaptations, depends on the so-called database management system, or DBMS you're using. Open-source implementations such as MySQL, postgreSQL and SQLite are very popular, but there are also proprietary implementations such as Oracle Database and Microsoft SQL server. Practically all of these implementations use SQL, or sequel, as the language for querying and maintaining the database. SQL stands for Structured Query Language. Depending on the type of database you want to connect to, you'll have to use different packages. Suppose the company database I introduced before is a MySQL database. This means you'll need the RMySQL package. For postgreSQL you'll need RpostgreSQL, for Oracle, you'll use ROracle and so on. How you interact with the database, so which R functions you use to access and manipulate the database, is specified in another R package called DBI. In more technical terms, DBI is an interface, and RMySQL is the implementation. Let's install the RMySQL package, which automatically installs the DBI package as well. Loading only the DBI package will be enough to get started. The first step is creating a connection to the remote MySQL database. You do this with dbConnect(), as follows. The first argument specifies the driver that you will use to connect to the MySQL database. It sure looks a bit strange, but the MySQL() function from the RMySQL package simply constructs a driver for us that dbConnect can use. Next, you have to specify the database name, where the database is hosted, through which port you want to connect, and finally the credentials to authenticate yourself. This is an actual database that we're hosting, so you can try these commands yourself! The result of the dbConnect call, con, is a DBI connection object. You'll need to pass this object to whatever function you're using to interact with the database. Before we do that, let's get familiar with this connection object in the exercises!
Views: 45692 DataCamp
Product-specific attributes define the performance and physical characteristics of a product… and help customers choose between products based on objective selection criteria.
Views: 908 Auto Care Association