
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 …
What is the difference between char, nchar, varchar, and nvarchar …
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 - 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 …
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?
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 …
SQL Server Text type vs. varchar data type - Stack Overflow
From the docs: Important ntext , text, and image data types will be removed in a future version of Microsoft SQL Server. Avoid using these data types in new development work, and plan to …
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 …
What's best SQL datatype for storing JSON string?
Feb 9, 2012 · 1 It's recommend to use varchar/nvarchar datatype then with the JSON text that's stored in database tables, you can read or modify values in the JSON text by using the …
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 …
sql - Conversion failed when converting the nvarchar value ... to …
Feb 9, 2014 · Conversion failed when converting the nvarchar value 'abcd' to data type int. Solution - I had seen this kind of error before when I forgot to enclose a number (in varchar …