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SQL Server Data Types - NCHAR
Versions: SQL Server 2008, 2005, 2000, 7.0 and 6.5
SQL Server - NCHAR | |
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Syntax | NCHAR[(n)] |
Data | Fixed-length character data in Unicode (UCS-2) character set |
Parameters | n is the maximum number of characters, optional |
Range | 1 ⇐ n ⇐ 4000 |
Default | n is 1 |
Padding | Right-padded with spaces to n (ANSI_PADDING option does not apply to NCHAR) |
Storage Size | n*2 bytes |
Synonyms | NATIONAL CHAR, NATIONAL CHARACTER |
Standards | ANSI SQL |
SQL Server NCHAR - Equivalents in Other Databases
Database | Data Type and Conversion |
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Oracle | NCHAR(n), 1 ⇐ n ⇐ 2000/charsize, Unicode - UTF-8 or UTF-16 |
IBM DB2 | GRAPHIC(n), 1 ⇐ n ⇐ 127, double-byte |
MySQL | NCHAR(n), 0 ⇐ n ⇐ 255, Unicode - UTF-8 and TEXT or VARCHAR(n), 1 ⇐ n ⇐ 65535/charsize |
PostgreSQL | CHAR(n), 1 ⇐ n ⇐ 1G |
Sybase ASE | NCHAR(n), 1 ⇐ n ⇐ pagesize (2K, 4K, 8K or 16K); UNICHAR(n), 1 ⇐ n ⇐ pagesize, Unicode |
Sybase ASA | NCHAR(n), 1 ⇐ n ⇐ 8191, Unicode - UTF-8 |
Informix | NCHAR(n), 1 ⇐ n ⇐ 32767, database character set |
Teradata | CHAR(n), 1 ⇐ n ⇐ 64000/charsize |
HP Neoview | NCHAR(n), 1 ⇐ n ⇐ (32708 - size of other columns), Unicode - UCS-2 or ISO88591 (Latin1) |
Interbase/Firebird | NCHAR(n), 1 ⇐ n ⇐ 32767, single-byte ISO8859_1 (Latin 1); CHAR(n), 1 ⇐ n ⇐ 32767, with CHARACTER SET UTF-8 |
Ingres | NCHAR(n), 1 ⇐ n ⇐ 16000, Unicode - UTF-8 |
Related Data Types in SQL Server
Data Types | ||
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Fixed-length Character Data | CHAR(n) | |
Variable-length Character Data | VARCHAR(n) | NVARCHAR(n) |
Character Large Objects | TEXT | NTEXT |
All Data Types