SQLWays Product Page - Migration to PostgreSQL
Free Evaluation
Versions: PostgreSQL 8.x and 7.x
| PostgreSQL - FLOAT | |
|---|---|
| Syntax | FLOAT[(p)] |
| Data | Floating-point numeric data |
| Parameters | p specifies the precision in binary digits |
| Range | 1E-307 to 1E+308, 1 ⇐ p ⇐ 53 |
| Default | p is 53 |
| Storage Size | 4 bytes if p ⇐ 24, 8 bytes if p > 24 |
| Special Values | The special case-insensitive values 'NaN' (not-a-number), 'Infinity' and '-Infinity' are allowed |
| Internals | if p ⇐ 24, FLOAT is stored as REAL, if p > 24, FLOAT is stored as DOUBLE PRECISION |
| Standards | ANSI SQL |
PostgreSQL FLOAT - Equivalents in Other Databases
| Database | Data Type and Conversion |
|---|---|
| Oracle | FLOAT(p) |
| SQL Server | FLOAT(p) |
| MySQL | FLOAT(p,s) |
| Sybase ASE | FLOAT(p) |
| Informix | FLOAT(p), p is ignored |
| HP Neoview | FLOAT(p) |
Related Data Types in PostgreSQL
| Data Types | ||||
|---|---|---|---|---|
| Integers | BIGINT | INT | SMALLINT | |
| Fixed-point | DECIMAL(p,s) | NUMERIC(p,s) | ||
| Floating-point | REAL | DOUBLE PRECISION | ||
All Data Types
| Oracle | SQL Server | IBM DB2 | MySQL | PostgreSQL | Sybase ASE | Sybase ASA | Informix DS | Teradata | HP Neoview | Interbase/Firebird |
SQLWays Product Page - Migration to PostgreSQL
Free Evaluation
Discussion