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MySQL Data Types - FLOAT
Versions: MySQL 5.x, 4.x and 3.23
| MySQL - FLOAT | |
|---|---|
| Syntax | FLOAT[(p[,s])] [UNSIGNED] [ZEROFILL] |
| Data | Floating-point numeric data |
| Parameters | If only p is specified, p is the binary precision. if p and s are both specified, p is the maximum number of all digits (both sides of the decimal point), s is the maximum number of digits after the point. p and s are optional If UNSIGNED is specified, negative values are not allowed. ZEROFILL specifies that the data is right padded with zeros to p |
| Range | -3.402823466E+38 to -1.175494351E-38, 0, and 1.175494351E-38 to 3.402823466E+3 |
| Storage Size | 4 bytes if p ⇐ 24, 8 bytes if p > 24 |
| Internals | If only p is specified, and p is 25 to 53, FLOAT is converted to DOUBLE |
| Synonyms | FLOAT4 |
| Standards | ANSI SQL |
MySQL FLOAT - Equivalents in Other Databases
| Database | Data Type and Conversion |
|---|---|
| Oracle | FLOAT(p) |
| SQL Server | FLOAT(p) |
| PostgreSQL | FLOAT(p) |
| Sybase ASE | FLOAT(p) |
| Informix | FLOAT(p), p is ignored |
| HP Neoview | FLOAT(p) |
| Ingres | FLOAT |
Related Data Types in MySQL
| Data Types | |||||
|---|---|---|---|---|---|
| Integers | BIGINT | INT | MEDIUMINT | SMALLINT | TINYINT |
| Fixed-point | DECIMAL(p,s) | NUMERIC(p,s) | |||
| Floating-point | REAL(p,s) | DOUBLE(p,s) | |||
All Data Types