Understand Difference between ON and USING in SQL as a Data Analyst

Understand this important difference between SQL keywords as a data analyst!

When you work as a data analyst, you will perform a lot of Joins between multiple tables.

Also, we have two different keywords to provide a common column between tables namely – “ON” and “USING”.

𝗟𝗲𝘁 𝗺𝗲 𝗲𝘅𝗽𝗹𝗮𝗶𝗻 𝘆𝗼𝘂 𝘁𝗵𝗲 𝗱𝗶𝗳𝗳𝗲𝗿𝗲𝗻𝗰𝗲 𝗯𝗲𝘁𝘄𝗲𝗲𝗻 𝘁𝗵𝗲 𝘁𝘄𝗼:

• USING needs the exact column names in both tables while ON doesn’t.
• USING is much more readable than ON.
• The ON keyword will display a common column two times when you select specific columns in the result.
• On the other hand, the USING keyword will display a common column once.

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