Calling a stored procedure with Umlauts (äöü) does not store these correctly in
the database
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Key: DNET-453
URL: http://tracker.firebirdsql.org/browse/DNET-453
Project: .NET Data provider
Issue Type: Bug
Components: ADO.NET Provider
Affects Versions: 2.7.7
Environment: Windows 7,
Visual Studio 2010 .Net 4.0,
Latest Firebird DB, latest Firebird .Net Provider
Reporter: Ashwani Mehlem
Assignee: Jiri Cincura
Priority: Critical
When calling a stored procedure with a named parameter that contains Umlauts,
these Umlauts get corrupted before the stored procedure is entered.
The same issue does not happen when the parameter is used to issue an
update-statement.
This happened no matter what values where used for:
- Charset in the connection string
- Charset in the parameter
- FbDBType in the parameter
- DbType in the parameter
It seems as if the Charset gets ignored when calling a stored procedure that
accepts a blob.
Code that produced the error:
char separator = Convert.ToChar(31);
string databaseConnectionString =
"Database=D:\\EON\\Datenbank\\GS.fb2";
databaseConnectionString += ";User=SYSDBA";
databaseConnectionString += ";Password=masterkey";
databaseConnectionString += ";CharSet=NONE";
databaseConnectionString += ";ServerType=0";
FbConnection connection = new
FbConnection(databaseConnectionString);
connection.Open();
var command = new FbCommand("EXECUTE PROCEDURE
UpdateOrInsertGSObject('Systemkennzeichen 4', 1, '0324 00BFL', 1, 0,
@propNames, @propValues)", connection);
byte[] bytesPropertyNames =
Encoding.GetEncoding(1252).GetBytes("Name" + separator);
byte[] bytesPropertyValues =
Encoding.GetEncoding(1252).GetBytes("Äöü" + separator);
command.Parameters.Add("@propNames", bytesPropertyNames);
FbParameter value = new FbParameter("@propValues",
bytesPropertyValues);
value.Charset = FbCharset.None;
value.FbDbType = FbDbType.Text;
value.DbType = DbType.String;
value.Direction = ParameterDirection.Input;
command.Parameters.Add(value);
command.ExecuteNonQuery();
command.Dispose();
connection.Close();
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