Calling Stored Procedures
You can invoke a stored procedure using AzureTablesCommand in the same way as any other SQL stored procedure. To instantiate a AzureTablesCommand object, provide the name of the stored procedure and a AzureTablesConnection 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 AzureTablesCommand instance.
C#
string connectionString = "AccessKey=myAccessKey;Account=myAccountName;"; using (AzureTablesConnection connection = new AzureTablesConnection(connectionString)) { AzureTablesCommand cmd = new AzureTablesCommand("CreateTable", connection); cmd.CommandType = CommandType.StoredProcedure; cmd.Parameters.Add(new AzureTablesParameter("@ObjectName", "NorthwindProducts")); // Add other parameters as needed ... AzureTablesDataReader 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 = "AccessKey=myAccessKey;Account=myAccountName;" Using connection As New AzureTablesConnection(connectionString) Dim cmd As New AzureTablesCommand("CreateTable", connection) cmd.CommandType = CommandType.StoredProcedure cmd.Parameters.Add(New AzureTablesParameter("@ObjectName", "NorthwindProducts")) ' Add other parameters as needed ... Dim rdr As AzureTablesDataReader = 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 AzureTablesCommand instance.
C#
string connectionString = "AccessKey=myAccessKey;Account=myAccountName;"; using (AzureTablesConnection connection = new AzureTablesConnection(connectionString)) { AzureTablesCommand cmd = new AzureTablesCommand("EXECUTE CreateTable ObjectName = @ObjectName;", connection); cmd.Parameters.Add(new AzureTablesParameter("@ObjectName", "NorthwindProducts")); // Add other parameters as needed ... AzureTablesDataReader 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 = "AccessKey=myAccessKey;Account=myAccountName;" Using connection As New AzureTablesConnection(connectionString) Dim cmd As New AzureTablesCommand("EXECUTE CreateTable ObjectName = @ObjectName;", connection) cmd.Parameters.Add(New AzureTablesParameter("@ObjectName", "NorthwindProducts")) ' Add other parameters as needed ... Dim rdr As AzureTablesDataReader = 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