Thanks both. SQL 2008. Will go with a varchar (10) I think to cover possible future codes being longer - same overhead on the space as a varchar (7) so might as well ...

and usage details of VARCHAR among various databases, with SQL Server and PostgreSQL being particularly representative, which directly affects query syntax. This article will systematically outline ...

However, for many beginners, the differences in the implementation of VARCHAR across different databases can be confusing. This article will use SQL Server and PostgreSQL as examples to delve into the ...

What would you do...? Have a table (SQL Server 2008) that the user wants to record a fixed 8 character string in. At first glance, a CHAR seems the obvious selection since this value (an 8 ...

The new VARCHAR data type with UTF-8 encoding should require less space, and filter and sorting operations should also run significantly faster. The API has been adapted accordingly.