Calling Stored Procedures
You can invoke a stored procedure using JSONCommand in the same way as any other SQL stored procedure. To instantiate a JSONCommand object, provide the name of the stored procedure and a JSONConnection 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 JSONCommand instance.
C#
string connectionString = "DataModel=Relational;URI=C:\people.json"; using (JSONConnection connection = new JSONConnection(connectionString)) { JSONCommand cmd = new JSONCommand("GetOAuthAccessToken", connection); cmd.CommandType = CommandType.StoredProcedure; cmd.Parameters.Add(new JSONParameter("@CallbackURL", "http://localhost")); // Add other parameters as needed ... JSONDataReader 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 = "DataModel=Relational;URI=C:\people.json" Using connection As New JSONConnection(connectionString) Dim cmd As New JSONCommand("GetOAuthAccessToken", connection) cmd.CommandType = CommandType.StoredProcedure cmd.Parameters.Add(New JSONParameter("@CallbackURL", "http://localhost")) ' Add other parameters as needed ... Dim rdr As JSONDataReader = 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 JSONCommand instance.
C#
string connectionString = "DataModel=Relational;URI=C:\people.json"; using (JSONConnection connection = new JSONConnection(connectionString)) { JSONCommand cmd = new JSONCommand("EXECUTE GetOAuthAccessToken CallbackURL = @CallbackURL;", connection); cmd.Parameters.Add(new JSONParameter("@CallbackURL", "http://localhost")); // Add other parameters as needed ... JSONDataReader 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 = "DataModel=Relational;URI=C:\people.json" Using connection As New JSONConnection(connectionString) Dim cmd As New JSONCommand("EXECUTE GetOAuthAccessToken CallbackURL = @CallbackURL;", connection) cmd.Parameters.Add(New JSONParameter("@CallbackURL", "http://localhost")) ' Add other parameters as needed ... Dim rdr As JSONDataReader = 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