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Informix Dynamic Server (IDS) Data Types - VARCHAR
Versions: Informix Dynamic Server 11.x, 10.x, 9.x and 7.x
Infromix - VARCHAR | |
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Syntax | VARCHAR[(n [,r])] |
Data | Variable-length character data, single-byte and multibyte character sets |
Parameters | n is the maximum number of bytes, r is the minimum number of bytes reserved for column |
Range | 1 ⇐ n ⇐ 255, 0 ⇐ r ⇐ n |
Default | n is 1, r is 0 |
Padding | Not right-padded with spaces to n |
Trailing Spaces | Not removed when the value is stored and retrieved |
Storage Size | Actual entry length |
Synonyms | CHARACTER VARYING |
Standards | ANSI SQL |
Example:
CREATE TABLE t_varchar (c1 VARCHAR(10,3));
Informix VARCHAR - Equivalents in Other Databases
Database | Data Type and Conversion |
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Oracle | VARCHAR(n), 1 ⇐ n ⇐ 4000/charsize |
SQL Server | VARCHAR(n | max), 1 ⇐ n ⇐ 8000, 2G if max is specified |
MySQL | VARCHAR(n), 1 ⇐ n ⇐ 65535/charsize |
PostgreSQL | VARCHAR(n), 1 ⇐ n ⇐ 1G |
Sybase ASE | VARCHAR(n), 1 ⇐ n ⇐ pagesize (2K, 4K, 8K or 16K) |
HP Neoview | VARCHAR(n), 1 ⇐ n ⇐ (32708 - size of other columns) |
Ingres | VARCHAR(n), 1 ⇐ n ⇐ 32000; TEXT(n), 1 ⇐ n ⇐ 32000 |
Related Data Types in Informix
Data Types | ||
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Fixed-length Character Data | CHAR(n) | NCHAR(n) |
Variable-length Character Data | NVARCHAR(n,r) | LVARCHAR(n) |
Character Large Objects | TEXT | CLOB |
All Data Types