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SQL Upskilling for Beginners
Gain the SQL skills to interact with and query your data.
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tutorial
FORMAT() SQL FUNCTION
FORMAT() is one of the most commonly used functions in SQL. Learn its main applications in this tutorial.
Travis Tang
3 min
tutorial
Aggregate Functions in SQL
Learn how to use aggregate functions for summarizing results and gaining useful insights about data in SQL.
Sayak Paul
9 min
tutorial
COUNT() SQL FUNCTION
COUNT() lets you count the number of rows that match certain conditions. Learn how to use it in this tutorial.
Travis Tang
3 min
tutorial
INSERT INTO SQL FUNCTION
INSERT INTO lets you add data to your tables. Learn how to use it in this tutorial.
Travis Tang
3 min
tutorial
SELECTing Multiple Columns in SQL
Learn how to easily select multiple columns from a database table in SQL, or select all columns from a table in one simple query.
DataCamp Team
3 min
tutorial
DATEDIFF() SQL FUNCTION
DATEDIFF() is one of the most widely used date data manipulation functions in SQL. Master it by reading this tutorial.
Travis Tang
3 min