{"id":7369,"date":"2024-03-14T05:27:21","date_gmt":"2024-03-14T05:27:21","guid":{"rendered":"https:\/\/www.silicloud.com\/blog\/what-data-types-does-clickhouse-support\/"},"modified":"2025-08-02T15:18:11","modified_gmt":"2025-08-02T15:18:11","slug":"what-data-types-does-clickhouse-support","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/blog\/what-data-types-does-clickhouse-support\/","title":{"rendered":"ClickHouse Data Types: Complete Guide"},"content":{"rendered":"

In ClickHouse, data types are mainly categorized into the following groups:<\/p>\n

    \n
  1. Numeric data type:<\/li>\n<\/ol>\n
      \n
    1. Int8, Int16, Int32, Int64: Signed integer types used to store 8-bit, 16-bit, 32-bit, and 64-bit integers, respectively.<\/li>\n
    2. UInt8, UInt16, UInt32, UInt64: Unsigned integer types used to store 8-bit, 16-bit, 32-bit, and 64-bit unsigned integers, respectively.<\/li>\n
    3. Float32 and Float64: data types used to store 32-bit and 64-bit floating point numbers, respectively.<\/li>\n<\/ol>\n
        \n
      1. String data type:<\/li>\n<\/ol>\n
          \n
        1. String: variable-length string type.<\/li>\n
        2. FixedString(N) is a type of string with a set length of N characters.<\/li>\n<\/ol>\n
            \n
          1. Date and time formats:<\/li>\n<\/ol>\n
              \n
            1. Date is a data type that stores the year, month, and day.<\/li>\n
            2. DateTime is a data type that stores the year, month, day, hour, minute, and second.<\/li>\n<\/ol>\n
                \n
              1. Boolean type:<\/li>\n<\/ol>\n
                  \n
                1. Boolean is a data type used to store true or false values.<\/li>\n<\/ol>\n
                    \n
                  1. Enumeration type:<\/li>\n<\/ol>\n
                      \n
                    1. Enum8 and Enum16: Enumerated types used to store values within a specific range of enumerated values.<\/li>\n<\/ol>\n
                        \n
                      1. Other categories:<\/li>\n<\/ol>\n
                          \n
                        1. UUID: A data type used to store universal unique identifiers.<\/li>\n
                        2. Array(T)\uff1aArray type used to store an array of elements of type T.<\/li>\n
                        3. Tuple(T1, T2, \u2026): a type of data structure used for storing multiple values of different types.<\/li>\n<\/ol>\n

                          The above are commonly used data types in ClickHouse. The choice of different data types depends on the characteristics of the data and the application scenario.<\/p>\n","protected":false},"excerpt":{"rendered":"

                          In ClickHouse, data types are mainly categorized into the following groups: Numeric data type: Int8, Int16, Int32, Int64: Signed integer types used to store 8-bit, 16-bit, 32-bit, and 64-bit integers, respectively. UInt8, UInt16, UInt32, UInt64: Unsigned integer types used to store 8-bit, 16-bit, 32-bit, and 64-bit unsigned integers, respectively. Float32 and Float64: data types used […]<\/p>\n","protected":false},"author":11,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_import_markdown_pro_load_document_selector":0,"_import_markdown_pro_submit_text_textarea":"","footnotes":""},"categories":[1],"tags":[9400,9404,9403,9401,9402],"class_list":["post-7369","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-clickhouse-data-types","tag-clickhouse-database","tag-clickhouse-integer-types","tag-clickhouse-numeric-types","tag-clickhouse-string-types"],"yoast_head":"\nClickHouse Data Types: Complete Guide - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"Explore all ClickHouse data types including numeric, string, and more. 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