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mysqlintegerauto-increment

What is the limit of auto_increment (integer) in mysql


I have a mysql database in which i am using auto_increment(integer), can you tell me till what integer it can incremented. How we can increase the limit of auto_increment?


Solution

  • The limit of an auto_increment column is the size of the column:

    Use a large enough integer data type for the AUTO_INCREMENT column to hold the maximum sequence value you will need. When the column reaches the upper limit of the data type, the next attempt to generate a sequence number fails. For example, if you use TINYINT, the maximum permissible sequence number is 127. For TINYINT UNSIGNED, the maximum is 255.

    The limits of the integer types are:

    TINYINT            - 127
    UNSIGNED TINYINT   - 255
    SMALLINT           - 32767
    UNSIGNED SMALLINT  - 65535
    MEDIUMINT          - 8388607
    UNSIGNED MEDIUMINT - 16777215
    INT                - 2147483647
    UNSIGNED INT       - 4294967295
    BIGINT             - 9223372036854775807
    UNSIGNED BIGINT    - 18446744073709551615