Dec 11, 2009 · VARCHAR is variable-length. CHAR is fixed length. If your content is a fixed size, you'll get better performance with CHAR. See the MySQL page on CHAR and VARCHAR …

27 The main difference between Varchar(n) and nvarchar(n) is: Varchar ( Variable-length, non-Unicode character data) size is upto 8000. It is a variable length data type Used to store non …

Jun 27, 2013 · varchar [(n | max)] (character varying) Variable-length, non-Unicode string data. n defines the string length and can be a value from 1 through 8,000. max indicates that the …

Nov 11, 2009 · What is the meaning of varchar(-1) in SQL Server 2008? Is it an alternative for varchar(max)?

Jul 23, 2009 · VARCHAR is reserved by Oracle to support distinction between NULL and an empty string in the future, as ANSI standard prescribes. VARCHAR2 does not distinguish …

I have variable length character data and want to store in SQL Server (2005) database. I want to learn some best practices about how to choose TEXT SQL type or choose VARCHAR SQL …

At any time in the past, if someone had asked me the maximum size for a varchar(max), I'd have said 2GB, or looked up a more exact figure (2^31-1, or 2147483647). However, in some …

Nov 15, 2010 · What is the difference between char, nchar, ntext, nvarchar, text and varchar in SQL? Is there really an application case for each of these types, or are some of them just …

Aug 12, 2009 · Possible values are 1-255. But what are its advantages if you use VARCHAR (255) that is the maximum instead of VARCHAR (20)? As far as I know, the size of the entries …

1 char and varchar actually becomes irrelevant if you have just 1 variable length field in your table, like a varchar or text. Mysql will automatically change all char to varchar. The fixed length/size …