Lateral Join in PostgreSQL
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What is Lateral Join in PostgreSQL?
Lateral join allows you to reference columns from preceding tables in a query, making it possible to perform complex operations that involve correlated subqueries and the application of functions on tables in a cleaner and more effective way. The LATERAL keyword in PostgreSQL is used in conjunction with a subquery in the FROM clause of a query. It helps you to write more concise and powerful queries, as it allows the subquery to reference columns from preceding tables in the query.
Free resources to learn Lateral Join in PostgreSQL
- Official docsLATERAL Subqueries
- ArticleHow to use lateral join in PostgreSQL
More in stage 9: Security
Lateral Join in PostgreSQL: common questions
Can I learn Lateral Join in PostgreSQL in Hindi?
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Is this Lateral Join in PostgreSQL tutorial for beginners?
It is lesson 59 of 170 in the free PostgreSQL roadmap, in stage 9, Security. If you are new to PostgreSQL, start from stage 1 and come back here in order; if you already know the earlier stages, this lesson stands on its own.