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What is the equivalent of a Java long in the context of MySql variables?
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CHAR(M) − A fixed-length string between 1 and 255 characters in length (for example CHAR(5)), right-padded with spaces to the specified length when stored. Defining a length is not required, but the default is 1. VARCHAR(M) − A variable-length string between 1 and 255 characters in length. For example, VARCHAR(25).
The number is used to display width. BIGINT takes 8 bytes i.e. 64 bits. The signed range is -9223372036854775808 to 9223372036854775807 and unsigned range takes positive value. The range of unsigned is 0 to 18446744073709551615.
The equivalent of Java long in the context of MySQL variables is BigInt. In Java, the long datatype takes 8 bytes while BigInt also takes the same number of bytes.
SIGNED BIGINT is a 8-bytes long integer just like Java's long.
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