PostgreSQL Interview Question: what is string_agg() and when do you use it?

Data Cat
3 min readJan 21, 2024
Title — string_agg()

Hi everyone, this post is about the Postgres useful function. Postgres offers a variety of useful functions thanks to committers and I am always grateful for such great community. I wanted to share one useful function, string_agg(), that I recently found. If you are a product manager or analysts who want to aggregate and analyze dataset, this entry is helpful.

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