Delete a dataset and its contents

Delete a dataset and its contents from a project.

Code sample

C#

Before trying this sample, follow the C# setup instructions in the BigQuery quickstart using client libraries . For more information, see the BigQuery C# API reference documentation .

To authenticate to BigQuery, set up Application Default Credentials. For more information, see Set up authentication for client libraries .

  using 
  
  Google.Cloud.BigQuery.V2 
 
 ; 
 using 
  
 System 
 ; 
 public 
  
 class 
  
 BigQueryDeleteDatasetAndContents 
 { 
  
 public 
  
 void 
  
 DeleteDatasetAndContents 
 ( 
  
 string 
  
 projectId 
  
 = 
  
 "your-project-id" 
 , 
  
 string 
  
 datasetId 
  
 = 
  
 "your_dataset_with_tables" 
  
 ) 
  
 { 
  
  BigQueryClient 
 
  
 client 
  
 = 
  
  BigQueryClient 
 
 . 
  Create 
 
 ( 
 projectId 
 ); 
  
 // Use the DeleteDatasetOptions to delete a dataset and its contents 
  
 client 
 . 
  DeleteDataset 
 
 ( 
  
 datasetId 
 : 
  
 datasetId 
 , 
  
 options 
 : 
  
 new 
  
  DeleteDatasetOptions 
 
 () 
  
 { 
  
 DeleteContents 
  
 = 
  
 true 
  
 } 
  
 ); 
  
 Console 
 . 
 WriteLine 
 ( 
 $"Dataset {datasetId} and contents deleted." 
 ); 
  
 } 
 }

Java

Before trying this sample, follow the Java setup instructions in the BigQuery quickstart using client libraries . For more information, see the BigQuery Java API reference documentation .

To authenticate to BigQuery, set up Application Default Credentials. For more information, see Set up authentication for client libraries .

  import 
  
 com.google.cloud.bigquery. BigQuery 
 
 ; 
 import 
  
 com.google.cloud.bigquery. BigQueryException 
 
 ; 
 import 
  
 com.google.cloud.bigquery. BigQueryOptions 
 
 ; 
 import 
  
 com.google.cloud.bigquery. DatasetId 
 
 ; 
 // Sample to delete dataset with contents. 
 public 
  
 class 
 DeleteDatasetAndContents 
  
 { 
  
 public 
  
 static 
  
 void 
  
 main 
 ( 
 String 
 [] 
  
 args 
 ) 
  
 { 
  
 // TODO(developer): Replace these variables before running the sample. 
  
 String 
  
 projectId 
  
 = 
  
 "MY_PROJECT_ID" 
 ; 
  
 String 
  
 datasetName 
  
 = 
  
 "MY_DATASET_NAME" 
 ; 
  
 deleteDatasetAndContents 
 ( 
 projectId 
 , 
  
 datasetName 
 ); 
  
 } 
  
 public 
  
 static 
  
 void 
  
 deleteDatasetAndContents 
 ( 
 String 
  
 projectId 
 , 
  
 String 
  
 datasetName 
 ) 
  
 { 
  
 try 
  
 { 
  
 // Initialize client that will be used to send requests. This client only needs to be created 
  
 // once, and can be reused for multiple requests. 
  
  BigQuery 
 
  
 bigquery 
  
 = 
  
  BigQueryOptions 
 
 . 
 getDefaultInstance 
 (). 
 getService 
 (); 
  
  DatasetId 
 
  
 datasetId 
  
 = 
  
  DatasetId 
 
 . 
 of 
 ( 
 projectId 
 , 
  
 datasetName 
 ); 
  
 // Use the force parameter to delete a dataset and its contents 
  
 boolean 
  
 success 
  
 = 
  
 bigquery 
 . 
  delete 
 
 ( 
 datasetId 
 , 
  
 BigQuery 
 . 
 DatasetDeleteOption 
 . 
  delete 
 
Contents ()); 
  
 if 
  
 ( 
 success 
 ) 
  
 { 
  
 System 
 . 
 out 
 . 
 println 
 ( 
 "Dataset deleted with contents successfully" 
 ); 
  
 } 
  
 else 
  
 { 
  
 System 
 . 
 out 
 . 
 println 
 ( 
 "Dataset was not found" 
 ); 
  
 } 
  
 } 
  
 catch 
  
 ( 
  BigQueryException 
 
  
 e 
 ) 
  
 { 
  
 System 
 . 
 out 
 . 
 println 
 ( 
 "Dataset was not deleted with contents. \n" 
  
 + 
  
 e 
 . 
 toString 
 ()); 
  
 } 
  
 } 
 }

Ruby

Before trying this sample, follow the Ruby setup instructions in the BigQuery quickstart using client libraries . For more information, see the BigQuery Ruby API reference documentation .

To authenticate to BigQuery, set up Application Default Credentials. For more information, see Set up authentication for client libraries .

  require 
  
 "google/cloud/bigquery" 
 def 
  
 delete_dataset_and_contents 
  
 dataset_id 
  
 = 
  
 "my_dataset_with_tables" 
  
 bigquery 
  
 = 
  
 Google 
 :: 
 Cloud 
 :: 
  Bigquery 
 
 . 
  new 
 
  
 # Use the force parameter to delete a dataset and its contents 
  
 dataset 
  
 = 
  
 bigquery 
 . 
 dataset 
  
 dataset_id 
  
 dataset 
 . 
 delete 
  
 force 
 : 
  
 true 
  
 puts 
  
 "Dataset 
 #{ 
 dataset_id 
 } 
 and contents deleted." 
 end

What's next

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Code sample

C#

Java

Ruby

What's next

Delete a dataset and its contents