BigQueryParameter Class

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Represents a parameter to a BigQueryCommand, and optionally, its mapping to System.Data.DataSet columns.

Syntax

Visual Basic
C#


'Declaration Public NotInheritable Class BigQueryParameter Inherits Devart.Data.SqlShimParameter Implements System.Data.IDataParameter, System.Data.IDbDataParameter, System.ICloneable


public sealed class BigQueryParameter : Devart.Data.SqlShimParameter, System.Data.IDataParameter, System.Data.IDbDataParameter, System.ICloneable

Remarks

Parameter names are not case-sensitive.

Refer to article Using Parameters in dotConnect for Google BigQuery to obtain detailed information on the matter together with some advanced examples.

Example

The following example creates multiple instances of BigQueryParameter through the BigQueryParameterCollection within the BigQueryDataAdapter. These parameters are used to select data from Google BigQuery and place the data in the System.Data.DataSet. This example assumes that a System.Data.DataSet and a BigQueryDataAdapter have already been created with the appropriate schema, commands, and connection.

csharp


public void AddBigQueryParameters() { // ... // create myDataSet and myDataAdapter // ... myDataAdapter.SelectCommand.Parameters.Add("DName", BigQueryType.VarChar, 15).Value = "DEVELOPMENT"; myDataAdapter.SelectCommand.Parameters.Add("DeptNo", BigQueryType.Int).Value = 50; myDataAdapter.Fill(myDataSet); }

public void AddBigQueryParameters()
{
  // ...
  // create myDataSet and myDataAdapter
  // ...
  myDataAdapter.SelectCommand.Parameters.Add("DName", BigQueryType.VarChar, 15).Value = "DEVELOPMENT";
  myDataAdapter.SelectCommand.Parameters.Add("DeptNo", BigQueryType.Int).Value = 50;
  myDataAdapter.Fill(myDataSet);
}

Visual Basic


Public Sub AddBigQueryParameters() ' ... ' create myDataSet and myDataAdapter ' ... myDataAdapter.SelectCommand.Parameters.Add("DName", BigQueryType.VarChar, 15).Value = "DEVELOPMENT" myDataAdapter.SelectCommand.Parameters.Add("DeptNo", BigQueryType.Int).Value = 50 myDataAdapter.Fill(myDataSet) End Sub

Public Sub AddBigQueryParameters()
  ' ...
  ' create myDataSet and myDataAdapter
  ' ...
  myDataAdapter.SelectCommand.Parameters.Add("DName", BigQueryType.VarChar, 15).Value = "DEVELOPMENT"
  myDataAdapter.SelectCommand.Parameters.Add("DeptNo", BigQueryType.Int).Value = 50
  myDataAdapter.Fill(myDataSet)
End Sub

Inheritance Hierarchy

System.Object
   System.MarshalByRefObject
      System.Data.Common.DbParameter
         Devart.Common.DbParameterBase
            Devart.Data.SqlShimParameter
               Devart.Data.BigQuery.BigQueryParameter

Reference

BigQueryParameter Members
Devart.Data.BigQuery Namespace
BigQueryCommand Class
BigQueryDataAdapter Class

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