在mysql建表sql里，我们经常会有定义字符串类型的需求。 比方说user表里的名字，就是个字符串。mysql里有两个类型比较适合这个场景。 char和varchar。 声明它们都需要在字段边上加个数组，比如char(100)和varchar(100)，这个100是指 ...

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 ...

I have an MS SQL 2005 database, and a FileMaker 10 client accessing it via ODBC (SQL Native Client) The data I am trying to import is (varchar(max), null). I have no problem importing (varchar(64 ...

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.