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I have taken over some C# code.
The code is hitting a database with some SQL which uses parameters.
All of the string parameters are typed as DbType.AnsiString instead of DbType.String.
Why would you use DbType.AnsiString instead of DbType.String?
AnsiString
A variable-length stream of non-Unicode characters ranging between 1 and 8,000 characters.
String
A type representing Unicode character strings.
In database:
nchar and nvarchar is unicode
char and varchar is non-unicode