8/6/2023 0 Comments Mysql float![]() ![]() Information, see Section 12.6.1, “Arithmetic Operators”. The FLOAT data type is a numeric data type, which means that it can store numbers with. The SQL FLOAT data type is commonly used when working with scientific or financial data, where precision and accuracy are important. Of the operands and the operations performed on them. In SQL, the FLOAT data type is used to represent floating-point numbers, which are numbers with a fractional component. Result of a calculation on numeric operands depends on the types Section 12.6, “Numeric Functions and Operators”. Types, see Section 11.7, “Data Type Storage Requirements”.įor descriptions of functions that operate on numeric values, see Section 11.1.7, “Out-of-Range and Overflow Handling”.įor information about storage requirements of the numeric data Values to columns and overflow during expression evaluation, see So up to 23 bits of precision for the mantissa can be stored in a FLOAT, which is equivalent to about 7 decimal digits because 223 107 (8,388,608 vs 10,000,000). A precision from 24 to 53 results in an 8-byte double-precision DOUBLE column. These typesįor information about how MySQL handles assignment of out-of-range A precision from 0 to 23 results in a 4-byte single-precision FLOAT column. MySQL supports all standard SQL numeric data types. MEDIUMINT, BIGINT 11.1.3 Fixed-Point Types (Exact Value) - DECIMAL, NUMERIC 11.1.4 Floating-Point Types (Approximate Value) - FLOAT, DOUBLE 11.1.5 Bit-Value Type - BIT 11.1.6 Numeric Type Attributes 11.1.7 Out-of-Range and Overflow Handling La slection d'un type entier peut (et doit) tre complte par une. Gnralement, la dclaration de type utilise par dfaut pour un entier est INTEGER et FLOAT pour un nombre dcimal. 11.1.1 Numeric Data Type Syntax 11.1.2 Integer Types (Exact Value) - INTEGER, INT, SMALLINT, TINYINT, En ce qui concerne les types numriques, SQL distingue 2 grandes catgories: les entiers et les nombres dcimaux (aussi appels flottants).
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