Registering Views with createOrReplaceTempView()

How do we register a DataFrame as a temporary SQL view so it can be queried using standard ANSI SQL?

Advanced⏱ 2 Minutes⭐ 620 XP

🤔 THE QUESTION

How do we register a DataFrame as a temporary SQL view so it can be queried using standard ANSI SQL?

💡 WHAT IS IT?

createOrReplaceTempView(name) registers a DataFrame as a session-scoped temporary table in the Spark catalog.

🎯 WHAT IS IT USED FOR?

Enabling SQL queries on in-memory DataFrames without persisting tables to external storage.

💻 EXAMPLE

df.createOrReplaceTempView("v_customers")

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