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Ingres Data Types
Versions: Ingres 9.x and 10.0
| Data Type | Parameters and Range |
|---|---|
| Character Data Types | |
| CHAR(n) - Fixed-length character data | 1 ⇐ n ⇐ not exceeding 32,000 characters (16,000 in a UTF8 instance), default is 1. Synonym: character(n), Cn, c(n) |
| NCHAR(n) - Fixed-length character data | 1 ⇐ n ⇐ not exceeding 16,000 characters (32,000 bytes), default is 1 |
| VARCHAR(n) - Variable-length character data | 1 ⇐ n ⇐ not exceeding 32,000 characters (16,000 in a UTF8 instance), default is 1 |
| NVARCHAR(n) - Variable-length character data | 1 ⇐ n ⇐ not exceeding 16,000 characters (32,000 bytes), default is 1 |
| TEXT(n) - Variable-length character data. All characters except NULL | 1 ⇐ n ⇐ not exceeding 32,000 characters (16,000 in a UTF8 instance), default is 1. Synonym: vchar(n) |
| LONG VARCHAR - Variable-length character data | A string of 1 to 2 GB characters |
| LONG NVARCHAR - Variable-length character data | A string of 1 to a maximum of 1 GB Unicode characters (that is, 2 bytes to a maximum of 2 GB in length) |
| Integer Data Types | |
| BIGINT - 64-bit integer data | -263 to 263-1 |
| INTEGER - 32-bit integer data | -231 to 231-1, Synonyms: i4, integer4 |
| SMALLINT - 16-bit integer data | -32,768 to 32,767, Synonyms: i2, integer2 |
| TINYINT - 8-bit integer data | -128 to 127, Synonyms: i1, integer1 |
| Decimal Data Types | |
| DECIMAL(p,s), NUMERIC(p,s) - p - defines the precision. s - defines the scale. | -99999 to 99999; 1 ⇐ p ⇐ 39, default is 5; 0 ⇐ s ⇐ p, default is 0 Synonyms: dec(p,s), numeric(p,s) |
| Floating-Point Data Types | |
| FLOAT - Floating-point numeric data 64-bit | -1.0E+38 to 1.0E+38 (16 digit precision), Synonyms: float8 |
| REAL - Floating-point numeric data 32-bit | -1.0E+38 to 1.0E+38 (7 digit precision), Synonyms: float4 |
| Date and Time Data Types | |
| DATE - Date data (year, month and day) | 0001-01-01 to 9999-12-31 |
| TIME(p) - Time data (time without time zone, time with time zone, time with local time zone) (hours, minutes, seconds) | 00:00:00 to 24:00:00 |
| TIMESTAMP(p) - Date and time data (timestamp with time zone, timestamp without time zone, timestamp with local time zone) (year, month, day, hours, minutes, seconds and fractional seconds) | 0001-01-01 00:00:00 to 9999-12-31 24:00:00 |
| INTERVAL - Interval data (interval year to month, interval day to second) | -9999-0 to 9999-11 and -3652047 00:00:00 to 3652047 23:59:59 |
| ANSIDATE - Date data (year, month and day) | 0001-01-01 to 9999-12-31 |
| INGRESDATE - Date data (year, month and day) | 1-jan-0001 to 31-dec-9999 (for absolute dates) and -9999 years to +9999 years (for time intervals) |
| Binary Data Types | |
| BYTE - Fixed-length binary data | 1 to maximum configured row size |
| BYTE VAR - Variable-length binary data | 1 to maximum configured row size |
| LONG BYTE - Fixed-length binary data | 1 to 2 GB of binary data |
| Other Data Types | |
| BOOLEAN - Logical data (1-byte binary) | 0 or 1 |
| MONEY - Monetary data | $-999,999,999,999.99 to $999,999,999,999.99 |
| OBJECT_KEY - Logical key data | No range: stored as 16 bytes |
| TABLE_KEY - Logical keydata | No range: stored as 8 bytes |
Data Types in Other Databases