What's the difference between VARCHAR and CHAR?
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 Types for a …
What is the difference between varchar and nvarchar?
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-Unicode …
What is the difference between char, nchar, varchar, and nvarchar in ...
Oct 6, 2008 · 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 maximum storage …
Qual a diferença entre char, nchar, varchar e nvarchar?
Jun 21, 2017 · Qual a diferença entre usar os tipos de dados varchar e nvarchar? nvarchar existe em todo banco de dados SQL? Existe alguma diferença significante de performance entre ambos? …
sql - What does varchar (-1) mean? - Stack Overflow
Nov 11, 2009 · What is the meaning of varchar(-1) in SQL Server 2008? Is it an alternative for varchar(max)?
SQL Server Text type vs. varchar data type - Stack Overflow
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 type, pros and …
Difference between text and varchar (character varying)
What's the difference between the text data type and the character varying (varchar) data types? According to the documentation If character varying is used without length specifier, the type ac...
What are the use cases for selecting CHAR over VARCHAR in SQL?
Pick VARCHAR (or NVARCHAR) when the length varies significantly. CHAR may also be a bit faster because all the rows are of the same length. It varies by DB implementation, but generally, …
Postgresql - change the size of a varchar column to lower length
VARCHAR is a terrible type that exists in PostgreSQL only to comply with its associated terrible part of the SQL standard. If you don't care about multi-database compatibility, consider storing your data as …
What is the MySQL VARCHAR max size? - Stack Overflow
Nov 22, 2012 · The effective maximum length of a VARCHAR in MySQL 5.0.3 and later is subject to the maximum row size (65,535 bytes, which is shared among all columns) and the character set used. …