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- Whats the difference between VARCHAR and CHAR?
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 detailed explanation (be sure to also read the comments)
- What is the difference between char, nchar, varchar, and nvarchar in . . .
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 size is 2^31-1 bytes (2 GB) The storage size is the actual length of the data entered + 2 bytes
- Qual a diferença entre char, nchar, varchar e nvarchar?
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? Existe um critério
- 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 characters Occupies 1 byte of space for each character Nvarchar: Variable-length Unicode character data It is a variable-length data type
- 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
- 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 con
- sql - What does varchar (-1) mean? - Stack Overflow
What is the meaning of varchar(-1) in SQL Server 2008? Is it an alternative for varchar(max)?
- What is the difference between varchar and varchar2 in Oracle?
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 between a NULL and an empty string, and never will
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