A VARCHAR or variable character field is a set of character data of indeterminate length. The term varchar refers to a data type of a field (or column) in a database which can hold letters and numbers. Varchar fields can be of any size up to a limit, which varies by databases: an Oracle 11g database has a limit of 4000 bytes, [1] a MySQL 5.7 database has a limit of 65,535 bytes (for the entire row) [2] and Microsoft SQL Server 2008 has a limit of 8000 bytes (unless varchar(max) is used, which has a maximum storage capacity of 2 gigabytes). [3]
nvarchar is a variation of varchar,
[4] and which is more suitable depends on the
use case.[
clarification needed]
- ^ "Database Concepts". docs.oracle.com.
- ^ "MySQL :: MySQL 5.7 Reference Manual :: 11.4.1 The CHAR and VARCHAR Types". dev.mysql.com.
- ^ edmacauley (6 June 2024). "char and varchar (Transact-SQL)". msdn.microsoft.com.
- ^ SQL Server differences of char, nchar, varchar and nvarchar data types
 | This database-related article is a stub. You can help Wikipedia by expanding it. |
A VARCHAR or variable character field is a set of character data of indeterminate length. The term varchar refers to a data type of a field (or column) in a database which can hold letters and numbers. Varchar fields can be of any size up to a limit, which varies by databases: an Oracle 11g database has a limit of 4000 bytes, [1] a MySQL 5.7 database has a limit of 65,535 bytes (for the entire row) [2] and Microsoft SQL Server 2008 has a limit of 8000 bytes (unless varchar(max) is used, which has a maximum storage capacity of 2 gigabytes). [3]
nvarchar is a variation of varchar,
[4] and which is more suitable depends on the
use case.[
clarification needed]
- ^ "Database Concepts". docs.oracle.com.
- ^ "MySQL :: MySQL 5.7 Reference Manual :: 11.4.1 The CHAR and VARCHAR Types". dev.mysql.com.
- ^ edmacauley (6 June 2024). "char and varchar (Transact-SQL)". msdn.microsoft.com.
- ^ SQL Server differences of char, nchar, varchar and nvarchar data types
|
| This database-related article is a stub. You can help Wikipedia by expanding it. |