BigQueryDataAdapter Constructor(String,BigQueryConnection)

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Initializes a new instance of the BigQueryDataAdapter class with a SelectCommand and a BigQueryConnection object.

Syntax

Visual Basic
C#


'Declaration Public Function New( _ ByVal selectCommandText As String, _ ByVal selectConnection As BigQueryConnection _ )


public BigQueryDataAdapter( string selectCommandText, BigQueryConnection selectConnection )

Parameters

selectCommandText: A System.String that contains a SQL SELECT statement to be used as the CommandText of the SelectCommand property of the BigQueryDataAdapter.
selectConnection: A BigQueryConnection that represents the connection.

Remarks

This implementation of the BigQueryDataAdapter can be useful in an application that must call the Fill method for two or more BigQueryDataAdapter objects.

Example

The following example creates a BigQueryDataAdapter, sets some of its properties, retrieves data from a table, and displays it.

csharp


public void CreateDataAdapter(BigQueryConnection bigQueryConnection) { BigQueryDataAdapter myAdapter = new BigQueryDataAdapter("SELECT DeptNo, DName FROM your_project.your_dataset.employees", bigQueryConnection); myAdapter.MissingSchemaAction = MissingSchemaAction.AddWithKey; DataSet myDataSet = new DataSet(); myAdapter.Fill(myDataSet,"your_project.your_dataset.employees"); //Get all data from all tables within the dataset foreach(DataTable myTable in myDataSet.Tables) { foreach(DataRow myRow in myTable.Rows) { foreach (DataColumn myColumn in myTable.Columns) { Console.Write(myRow[myColumn]+"\t"); } Console.WriteLine(); } Console.WriteLine(); } }

public void CreateDataAdapter(BigQueryConnection bigQueryConnection)
{
  BigQueryDataAdapter myAdapter = new BigQueryDataAdapter("SELECT DeptNo, DName FROM your_project.your_dataset.employees", bigQueryConnection);
  myAdapter.MissingSchemaAction = MissingSchemaAction.AddWithKey;
  DataSet myDataSet = new DataSet();
  myAdapter.Fill(myDataSet,"your_project.your_dataset.employees");
  //Get all data from all tables within the dataset
  foreach(DataTable myTable in myDataSet.Tables)
  {
    foreach(DataRow myRow in myTable.Rows)
    {
      foreach (DataColumn myColumn in myTable.Columns)
      {
        Console.Write(myRow[myColumn]+"\t");
      }
      Console.WriteLine();
    }
    Console.WriteLine();
  }
}

Visual Basic


Public Sub CreateDataAdapter(ByVal bigQueryConnection As BigQueryConnection) Dim myAdapter As BigQueryDataAdapter = New BigQueryDataAdapter("SELECT DeptNo, DName FROM your_project.your_dataset.employees", bigQueryConnection) myAdapter.MissingSchemaAction = MissingSchemaAction.AddWithKey Dim myDataSet As DataSet = New DataSet myAdapter.Fill(myDataSet, "your_project.your_dataset.employees") Dim myTable As DataTable Dim myRow As DataRow Dim myColumn As DataColumn ' Get all data from all tables within the dataset For Each myTable In myDataSet.Tables For Each myRow In myTable.Rows For Each myColumn In myTable.Columns Console.Write(myRow(myColumn) & Chr(9)) Next myColumn Console.WriteLine() Next myRow Console.WriteLine() Next myTable End Sub

Public Sub CreateDataAdapter(ByVal bigQueryConnection As BigQueryConnection)
  Dim myAdapter As BigQueryDataAdapter = New BigQueryDataAdapter("SELECT DeptNo, DName FROM your_project.your_dataset.employees", bigQueryConnection)
  myAdapter.MissingSchemaAction = MissingSchemaAction.AddWithKey
  Dim myDataSet As DataSet = New DataSet
  myAdapter.Fill(myDataSet, "your_project.your_dataset.employees")
  Dim myTable As DataTable
  Dim myRow As DataRow
  Dim myColumn As DataColumn
  ' Get all data from all tables within the dataset
  For Each myTable In myDataSet.Tables
    For Each myRow In myTable.Rows
      For Each myColumn In myTable.Columns
        Console.Write(myRow(myColumn) & Chr(9))
      Next myColumn
      Console.WriteLine()
    Next myRow
    Console.WriteLine()
  Next myTable
End Sub

Reference

BigQueryDataAdapter Class
BigQueryDataAdapter Members
Overload List
BigQueryConnection Class
BigQueryCommand Class

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