Gets or sets a Google BigQuery statement used to select records in the data source.
Property Value
A
BigQueryCommand that is used during a fill operation to select records from the data source for placement in the
System.Data.DataSet.
The following example creates a
BigQueryDataAdapter, sets some of its properties, retrieves data from a table, and displays it.
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public void CreateDataAdapter(BigQueryConnection bigQueryConnection)
{
BigQueryDataAdapter myAdapter = new BigQueryDataAdapter();
myAdapter.MissingSchemaAction = MissingSchemaAction.AddWithKey;
DataSet myDataSet = new DataSet();
myAdapter.SelectCommand = new BigQueryCommand("SELECT id, first_name FROM your_project.your_dataset.employees", bigQueryConnection);
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();
}
} |
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Public Sub CreateDataAdapter(ByVal bigQueryConnection As BigQueryConnection)
Dim myAdapter As BigQueryDataAdapter = New BigQueryDataAdapter
myAdapter.MissingSchemaAction = MissingSchemaAction.AddWithKey
Dim myDataSet As DataSet = New DataSet
myAdapter.SelectCommand = New BigQueryCommand("SELECT id, first_name FROM your_project.your_dataset.employees", bigQueryConnection)
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 |
