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Query parameters allow you to write generic queries that contain abstract placeholders instead of concrete identifiers. In this video, we discuss the details of how to define and use query parameters in ClickHouse.

Rich Raposa
Director, Global Learning, ClickHouse

How to Use Query Parameters in ClickHouse

Linux, macOS, FreeBSD

Yes - you can upsert a row in ClickHouse! It behaves differently than with other databases, so it's important to understand how upserts are implemented using the ReplacingMergeTree table engine, including tips on how to avoid using FINAL in a query.

How to Upsert Rows into ClickHouse

ClickHouse has a handy table engine named SummingMergeTree that can be used to keep a running total of values grouped by whatever columns you want.

Videos / How to

How to Keep a Running Total in ClickHouse

Rich Raposa Director, Global Learning, ClickHouse

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