BIT(size) -- A bit-value type with a default of 1. The allowed number of bits in a value is set via the size parameter, which can hold values from 1 to 64. TINYINT(size) -- A very small integer with a signed range of -128 to 127, and an unsigned range of 0 to 255. Here, the size parameter specifies the maximum allowed display width, which is 255. BOOL -- Essentially a quick way of setting the column to TINYINT with a size of 1. 0 is considered false, whilst 1 is considered true. BOOLEAN -- Same as BOOL. SMALLINT(size) -- A small integer with a signed range of -32768 to 32767, and an unsigned range from 0 to 65535. Here, the size parameter specifies the maximum allowed display width, which is 255. MEDIUMINT(size) -- A medium integer with a signed range of -8388608 to 8388607, and an unsigned range from 0 to 16777215. Here, the size parameter specifies the maximum allowed display width, which is 255. INT(size) -- A medium integer with a signed range of -2147483648 to 2147483647, and an unsigned range from 0 to 4294967295. Here, the size parameter specifies the maximum allowed display width, which is 255. INTEGER(size) -- Same as INT. BIGINT(size) -- A medium integer with a signed range of -9223372036854775808 to 9223372036854775807, and an unsigned range from 0 to 18446744073709551615. Here, the size parameter specifies the maximum allowed display width, which is 255. FLOAT(p) -- A floating point number value. If the precision (p) parameter is between 0 to 24, then the data type is set to FLOAT(), whilst if it's from 25 to 53, the data type is set to DOUBLE(). This behaviour is to make the storage of values more efficient. DOUBLE(size, d) -- A floating point number value where the total digits are set by the size parameter, and the number of digits after the decimal point is set by the d parameter. DECIMAL(size, d) -- An exact fixed point number where the total number of digits is set by the size parameters, and the total number of digits after the decimal point is set by the d parameter. DEC(size, d) -- Same as DECIMAL.

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