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  1. What is the difference between varchar and nvarchar?

    An nvarchar column can store any Unicode data. A varchar column is restricted to an 8-bit codepage. Some people think that varchar should be used because it takes up less space. I …

  2. What is the difference between char, nchar, varchar, and nvarchar …

    Oct 6, 2008 · 45 nchar and char pretty much operate in exactly the same way as each other, as do nvarchar and varchar. The only difference between them is that nchar/nvarchar store …

  3. 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 …

  4. What are the main performance differences between varchar and …

    2) If one sees a drastic performance hit when mixing VARCHAR and NVARCHAR, that should be due to indexing of the VARCHAR column along with the type of Collation used for that column …

  5. unicode - When must we use NVARCHAR/NCHAR instead of …

    Mar 5, 2009 · When use char / nchar and varchar / nvarchar depends on the characters that you want to support, and also the version of your SQL Server that will determines which …

  6. SQL NVARCHAR and VARCHAR Limits - Stack Overflow

    Sep 28, 2012 · nvarchar(max) + varchar(n) will first convert the varchar(n) input to nvarchar(n) and then do the concatenation. If the length of the varchar(n) string is greater than 4,000 …

  7. Difference between Varchar (max) and nvarchar (max) [duplicate]

    Jun 16, 2015 · nvarchar (max) abcdefg n defines the string length and can be a value from 1 through 4,000. max indicates that the maximum storage size is 2^31-1 bytes (2 GB). The …

  8. sql - varchar or nvarchar - Stack Overflow

    Jan 11, 2014 · Which is better varchar or nvarchar. I have read that nvarchar takes up twice as much space compared to varchar and that nvarchar is used for internationalization. So what …

  9. sql - Determining Nvarchar length - Stack Overflow

    A common misconception is to think that with nchar (n) and nvarchar (n), the n defines the number of characters. However, in nchar (n) and nvarchar (n), the n defines the string length …

  10. What is the maximum characters for the NVARCHAR(MAX)?

    I have declared a column of type NVARCHAR(MAX) in SQL Server 2008, what would be its exact maximum characters having the MAX as the length?