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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 believe this is not …

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

    Jun 27, 2013 · 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 Unicode …

  3. 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 (and hence …

  4. 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 COLLATIONs and …

  5. 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 storage size, in …

  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 characters the cast …

  7. 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 in byte-pairs (0 …

  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 do you …

  9. 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?

  10. Difference between VARCHAR2(10 CHAR) and NVARCHAR2(10)

    The NVARCHAR2 datatype was introduced by Oracle for databases that want to use Unicode for some columns while keeping another character set for the rest of the database (which uses VARCHAR2). …