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Explain the need for multiple-table queries in data retrieval.
Generate successful SQL multiple-table queries for data retrieval.
Recognize relationships among tables in a relational database.
In this course you will be introduced to two methods of writing SQL queries that retrieve data from two or more tables. Since one of the functions of a database is to store data in an organized format, many databases are made up of multiple tables. Often, the data output required from the database is made up of data from more than one table. For example, the data that populates a student transcript might come from the Student, Course, and Section tables. While the Student table may provide the student’s name, the name and number of the course might come from the Course table and the specific grade for that course may come from yet another table. While writing SQL queries in SQLiteStudio, you'll learn the SQL syntax required to join tables together as you develop an understanding of how the relationships among tables come into play. Note: This course works best for learners who are based in the North America region. We’re currently working on providing the same experience in other regions.
Data Analysis
Sql Commands
Relational Database
SQLiteStudio
In a video that plays in a split-screen with your work area, your instructor will walk you through these steps:
Joining Two Tables with WHERE
Understanding Table Relationships
Joining Three or More Tables
Adding Selection into the WHERE clause
The INNER JOIN
The LEFT JOIN
Your workspace is a cloud desktop right in your browser, no download required
In a split-screen video, your instructor guides you step-by-step
by NP
Sep 16, 2020Nice and to the point explanations of the joins mentioned. Good for beginners. Wish they also added Self-Join as well.
by CC
Jan 11, 2021Great course that re-solidified the concepts for me.
by CL
Apr 5, 2021the work space is too busy, it is difficult to read or follow the session without interrupting the practical lesson and stopping the video.
by DM
Nov 13, 2020I got a very good understanding of how to retrieve data from multiple tables.
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You'll learn by doing through completing tasks in a split-screen environment directly in your browser. On the left side of the screen, you'll complete the task in your workspace. On the right side of the screen, you'll watch an instructor walk you through the project, step-by-step.
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