SQL join clauses are used to combine columns from one or more tables into a new table. This operation corresponds to a join operation in relational algebra and is used to stitch two tables together by matching fields. There are five types of joins: INNER, LEFT OUTER, RIGHT OUTER, FULL OUTER and CROSS.
University of Washington
Summer 2022
This course introduces the fundamental concepts of web programming and technologies required for web development. It covers the full spectrum of web development, from HTML, CSS, JavaScript to server-side technologies like Node.js, databases, and SQL.
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