Learn how to use SQL to store, query, and manipulate data. SQL is a special-purpose programming language designed for managing data in a relational database, used by …

Learn to manage databases with SQL. You'll define tables, query for data, and perform updates, deletions, and joins.

Database wizardry starts here: dive into SQL documentation and learn how to query, manage, and organize data like a pro.

Learn SQL programming with Khan Academy's interactive tutorials and exercises designed for beginners and experienced users.

Great, so now I know exactly what items I'm going to get, I'm going to be really efficent and you've learned a few ways to use SQL to query. Stay tuned to find out even more ways you can select.

SQL is a declarative language - each query declares what we want the SQL engine to do, but it doesn't say how. As it turns out, the how -- the "plan" -- is what affects the efficiency of the …

As we've mentioned throughout this course, there are many times we might find ourselves using SQL or a SQL-like query language on a database. We can think of some uses as "read-only …

Learn to manage databases with SQL. You'll define tables, query for data, and perform updates and deletions.

Course: KA Computer Science Class 12 > Unit 5 Lesson 2: SQL for Data Definition Creating a table and inserting data Challenge: Book list database Altering tables after creation

SQL: Transform SELECT results with CASE A CASE expression can be useful for mapping column values to new values. To use it, type CASE followed by a series of WHEN ... THEN ...