ADO.NET Provider for Apache Hive

Build 22.0.8479

SELECT INTO ステートメント

SELECT INTO ステートメントを使って、書式付きデータをファイルにエクスポートできます。

SQL クエリを使ったデータのエクスポート

次のクエリは、comma-separated values(CSV)ファイルフォーマットにデータをエクスポートします。

C#

String connectionString = "Server=127.0.0.1;Port=10000;TransportMode=BINARY";

using (ApacheHiveConnection connection = new ApacheHiveConnection(connectionString)) {
  ApacheHiveCommand cmd = new ApacheHiveCommand("SELECT City, CompanyName INTO [csv://[CData].[Default].Customers.txt] FROM [[CData].[Default].Customers] WHERE Country = 'US' ", connection);
  int rowsAffected = cmd.ExecuteNonQuery();
} 

VB.NET

Dim connectionString As [String] = "Server=127.0.0.1;Port=10000;TransportMode=BINARY" 

Using connection As New ApacheHiveConnection(connectionString)
  Dim cmd As New ApacheHiveCommand("SELECT City, CompanyName INTO [csv://[CData].[Default].Customers.txt] FROM [[CData].[Default].Customers] WHERE Country = 'US'", connection)
  Dim rowsAffected As Integer = cmd.ExecuteNonQuery()
End Using
URI で他のファイルフォーマットを指定できます。以下の例は、tab-separated values(TSV)にエクスポートします。

C#

String connectionString = "Server=127.0.0.1;Port=10000;TransportMode=BINARY";

using (ApacheHiveConnection connection = new ApacheHiveConnection(connectionString)) {
  ApacheHiveCommand cmd = new ApacheHiveCommand("SELECT * INTO [[CData].[Default].Customers] IN [csv://filename=c:/[CData].[Default].Customers.csv;delimiter=tab] FROM [[CData].[Default].Customers] WHERE Country = 'US'", connection);
  int rowsAffected = cmd.ExecuteNonQuery();
} 

VB.NET

Dim connectionString As [String] = "Server=127.0.0.1;Port=10000;TransportMode=BINARY" 

Using connection As New ApacheHiveConnection(connectionString)
  Dim cmd As New ApacheHiveCommand("SELECT * INTO [[CData].[Default].Customers] IN [csv://filename=c:/[CData].[Default].Customers.csv;delimiter=tab] FROM [[CData].[Default].Customers] WHERE Country = 'US'", connection)
  Dim rowsAffected As Integer = cmd.ExecuteNonQuery()
End Using

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Build 22.0.8479