The string type values supported by MariaDB are as follows − The four-digit format allows values in the range of 1901 to 2155, and 0000. YEAR − This data type represents a year in 4-digit format. It mainly finds use in detailing the time of database modifications, e.g., insertion or update. TIMESTAMP − This data type represents a timestamp of the “YYYY-MM-DD HH:MM:DD” format. The date and time data types supported by MariaDB are as follows −ĭATE − This data type represents a date range of “” to “,” and uses the “YYYY-MM-DD” date format. ![]() Zero-padding occurs automatically from the left for full length for example, “10” becomes “0010.” Bit values can be applied with “ b’’” in which value represents bit value in 0s and 1s. Default value for M on omission is 10, and 0 for D on omission.įLOAT − This data type represents a small, floating-point number of the value 0 or a number within the following ranges −ĭOUBLE (also REAL and DOUBLE PRECISION) − This data type represents normal-size, floating-point numbers of the value 0 or within the following ranges − The maximum permitted digits is 65, and the maximum for decimals is 30. If D is set to 0, no decimal or fraction part appears and the value will be rounded to the nearest DECIMAL on INSERT. The M value does not add “-” or the decimal point. When a column is set to ZEROFILL( an unsigned state), all its values are prepended by zeros to place M digits in the INT value.īIGINT − This data type represents integers within the signed range of 9223372036854775808 to 9223372036854775807, and the unsigned range of 0 to 18446744073709551615.ĭECIMAL( also DEC, NUMERIC, FIXED)− This data type represents precise fixed-point numbers, with M specifying its digits and D specifying the digits after the decimal. When marked as unsigned, the range spans 0 to 4294967295. INT(also INTEGER) − This data type represents an integer of normal size. MEDIUMINT − This data type represents integers in the signed range of -8388608 to 8388607, and the unsigned range of 0 to 16777215. SMALLINT − This data type represents integers within the signed range of -32768 to 32768, and the unsigned range of 0 to 65535. ![]() TINYINT − This data type represents small integers falling within the signed range of -128 to 127, and the unsigned range of 0 to 255.īOOLEAN − This data type associates a value 0 with “false,” and a value 1 with “true.” The numeric data types supported by MariaDB are as follows − ![]() ![]() MariaDB data types can be categorized as numeric, date and time, and string values. Field (or column) types are also known as data types given the data types stored within the field. For example, if you will only use a field, five-characters wide, do not define a field, 20-characters wide. The ideal approach requires that you exclusively use a field of the type and size needed. Good field definitions are essential for the optimization of your database.
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