Introduction to SQL
This course offers an easy-to-follow introduction to the basics of SQL databases and the Structured Query Language (SQL). Through engaging video lessons and thoughtfully crafted exercises, you’ll explore essential concepts step by step. Each topic is explained in detail and paired with hands-on practice to ensure you not only understand but also retain what you’ve learned.Course
Gain insight into a topic and learn the fundamentalsnuevo
Beginner
Recommended experience58 chapters
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Outcomes
Learning outcomes
Modules
Testimonials
Recommendations
Codefinity advantages
FAQs
What you will learn
- Understand how to extract individual, multiple and all columns from databases.
- Understand the process of sorting and filtering retrieved data to extract meaningful insights.
- Develop abilities in advanced data filtering, using operators and functions to refine queries.
- Learn how to create, update, delete databases and tables.
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Assessments43 assignments
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There are 6 modules in this course
This course offers an easy-to-follow introduction to the basics of SQL databases and the Structured Query Language (SQL). Through engaging video lessons and thoughtfully crafted exercises, you’ll explore essential concepts step by step. Each topic is explained in detail and paired with hands-on practice to ensure you not only understand but also retain what you’ve learned.This section will introduce you to coding in SQL. It will start with some basic information related to SQL and SQL Databases in general, eventually moving towards writing basic SQL queries. The section also includes some fun exercises where you will get to practice the SQL syntax.
- What is SQL?Preview
- Setting Up SQL and SSMSPreview
- Getting Familiar with SSMSPreview
- Structure of an SQL Database SystemPreview
- The SELECT StatementPreview
- Challenge: First Day as a LibrarianPreview
- Challenge: Find all Book TitlesPreview
- Challenge: Find Book Titles and AuthorsPreview
- The DISTINCT KeywordPreview
- Challenge: Find all GenresPreview
We will get an introduction to filtering data from our selections. This will give us control over what kind of data we fetch from the database. This section will cover the syntax for filtering data and various operators which can help us write robust conditions for conditional selection of data.
- The WHERE ClausePreview
- Challenge: Help a Reader Find Their Favorite GenrePreview
- Challenge: Fetching Older BooksPreview
- Conditional Expressions: Comparison OperatorsPreview
- Challenge: Avoid the Damaged BooksPreview
- Challenge: Highlight New ArrivalsPreview
- Challenge: Budget-Friendly BooksPreview
- Conditional Expressions: The AND OperatorPreview
- Challenge: Find Specific Books for a ReaderPreview
- Challenge: Defining RangesPreview
- Challenge: Multiple ConditionsPreview
- Conditional Expressions: The OR OperatorPreview
- Challenge: Matching Multiple OptionsPreview
- Challenge: Excluding A RangePreview
- Conditional Expressions: The NOT OperatorPreview
- Challenge: Negating a RangePreview
This section focuses on concepts related to sorting the tables based on the column values. Sorting can be useful in extracting the minimum or maximum values from a column or for making it easier to find relevant information quickly. We will also look at a keyword which can help us limit the number of rows that are fetched by our SELECT statements, making our queries more concise.
- Basic SortingPreview
- Challenge: Sorting the Library CataloguePreview
- Sorting by Multiple ColumnsPreview
- Challenge: Further Sorting the CataloguePreview
- Sorting after Filtering DataPreview
- Challenge: Find the Cheapest BooksPreview
- Challenge: Help a Customer Find a BookPreview
- The LIMIT KeywordPreview
- Challenge: Select Books for the Collector's SectionPreview
- Challenge: Affordable BooksPreview
You will learn about useful queries and keywords that can help us in populating a database with some data. This will include queries for creating tables, and for inserting rows into those tables. We will also cover two additional keywords that can help us in making our tables more intractable and robust.
- Creating a TablePreview
- Challenge: Creating a new Books TablePreview
- Inserting Rows into a TablePreview
- Challenge: Inserting DataPreview
- Challenge: Inserting More DataPreview
- Inserting Multiple RowsPreview
- Challenge: Inserting Bulk DataPreview
- Primary KeysPreview
- The SERIAL KeywordPreview
- Challenge: Changing the Books StructurePreview
- Specifying Default ValuesPreview
- Challenge: Further Improving the Books TablePreview
We will look at how to modify or delete data in an SQL database. This will include queries for updating or deleting rows in a table and making a copy of a table or deleting it.
- Updating Rows in a TablePreview
- Challenge: Correct Book's DataPreview
- Challenge: Updating Page CountsPreview
- Challenge: Mark Archived Books As UnavailablePreview
- Deleting RowsPreview
- Challenge: Deleting Outdated RecordsPreview
- Duplicating TablesPreview
- Challenge: Create a Table BackupPreview
- Challenge: Generate a Summarized Books TablePreview
- Deleting TablesPreview
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