ClickHouse and MySQL are two different database management systems with some differences and characteristics.
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Data storage structure: ClickHouse is a columnar storage database, which stores and processes data in columns. This storage method is very efficient when processing large amounts of data, especially for analytical queries. MySQL, on the other hand, is a row-based storage database that stores data in units of rows, and is suitable for transaction processing and general queries.
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Processing capacity: ClickHouse is excellent in the processing and analysis of massive data. It can efficiently process large-scale data sets and provide fast aggregation and analysis capabilities. In contrast, MySQL is more common in small-scale data and transaction processing.
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Query language: ClickHouse uses its own query language, ClickHouse SQL (similar to standard SQL), which supports complex analytical queries and aggregation operations. MySQL uses standard SQL.
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Data consistency: MySQL is a relational database that supports transactions and ACID (atomicity, consistency, isolation, and durability) features to ensure data consistency. ClickHouse is mainly used for analytical queries and has low requirements for data consistency.
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Performance and scalability: ClickHouse has advantages when dealing with large-scale data and high concurrent queries. It scales horizontally and provides the ability to run in a distributed environment. MySQL performs better in small-scale applications and transaction processing.
In general, ClickHouse is suitable for processing large-scale data and analytical queries, while MySQL is suitable for transaction processing and general queries. Which database to choose depends on the specific application scenarios and requirements.