Calling Stored Procedures
You can invoke a stored procedure using DB2Command in the same way as any other SQL stored procedure. To instantiate a DB2Command object, provide the name of the stored procedure and a DB2Connection instance as arguments to the constructor. Set the value of the CommandType property to "StoredProcedure" and add the parameters as key-value pairs to the Parameters collection of the DB2Command instance.
C#
string connectionString = "Server=10.0.1.2;Port=50000;User=admin;Password=admin;Database=test"; using (DB2Connection connection = new DB2Connection(connectionString)) { DB2Command cmd = new DB2Command("CleanCar", connection); cmd.CommandType = CommandType.StoredProcedure; cmd.Parameters.Add(new DB2Parameter("@Url", "http://myserver/myfeed/")); // Add other parameters as needed ... DB2DataReader rdr = cmd.ExecuteReader(); while (rdr.Read()) { for (int i = 0; i < rdr.FieldCount; i++) { Console.WriteLine(rdr.GetName(i) + " --> " + rdr[i]); } Console.WriteLine(); } }
VB.NET
Dim connectionString As String = "Server=10.0.1.2;Port=50000;User=admin;Password=admin;Database=test" Using connection As New DB2Connection(connectionString) Dim cmd As New DB2Command("CleanCar", connection) cmd.CommandType = CommandType.StoredProcedure cmd.Parameters.Add(New DB2Parameter("@Url", "http://myserver/myfeed/")) ' Add other parameters as needed ... Dim rdr As DB2DataReader = cmd.ExecuteReader() While rdr.Read() For i As Integer = 0 To rdr.FieldCount - 1 Console.WriteLine(rdr.GetName(i) + " --> " + rdr(i)) Next Console.WriteLine() End While End Using
Alternatively, you can set the parameters of a stored procedure in the text of the command. The support for stored procedure statements follows the standard form shown below:
"EXECUTE my_proc @first = 1, @second = 2, @third = 3;" "EXEC my_proc @first = 1, @second = 2, @third = 3;"
To execute a parameterized query, add parameters as key-value pairs to the Parameters collection of the DB2Command instance.
C#
string connectionString = "Server=10.0.1.2;Port=50000;User=admin;Password=admin;Database=test"; using (DB2Connection connection = new DB2Connection(connectionString)) { DB2Command cmd = new DB2Command("EXECUTE CleanCar Url = @Url;", connection); cmd.Parameters.Add(new DB2Parameter("@Url", "http://myserver/myfeed/")); // Add other parameters as needed ... DB2DataReader rdr = cmd.ExecuteReader(); while (rdr.Read()) { for (int i = 0; i < rdr.FieldCount; i++) { Console.WriteLine(rdr.GetName(i) + " --> " + rdr[i]); } Console.WriteLine(); } }
VB.NET
Dim connectionString As String = "Server=10.0.1.2;Port=50000;User=admin;Password=admin;Database=test" Using connection As New DB2Connection(connectionString) Dim cmd As New DB2Command("EXECUTE CleanCar Url = @Url;", connection) cmd.Parameters.Add(New DB2Parameter("@Url", "http://myserver/myfeed/")) ' Add other parameters as needed ... Dim rdr As DB2DataReader = cmd.ExecuteReader() While rdr.Read() For i As Integer = 0 To rdr.FieldCount - 1 Console.WriteLine(rdr.GetName(i) + " --> " + rdr(i)) Next Console.WriteLine() End While End Using