Essential string functions in ClickHouse

In this guide, we covered essential string functions in ClickHouse and their usage with examples. We discussed case conversion functions like lower, upper, and capitalize; string manipulation functions such as substring, concat, and replace; trimming functions including trimLeft, trimRight, and trimBoth; pattern matching capabilities with like and regexpExtract. Additionally, we compared these functions to their equivalents in other popular database systems like Postgres, DuckDB, Snowflake, and Databricks.