Mutations update data with NUMERIC

Update data in NUMERIC column by using mutations.

Explore further

For detailed documentation that includes this code sample, see the following:

Work with NUMERIC data

Code sample

C++

To learn how to install and use the client library for Spanner, see Spanner client libraries .

To authenticate to Spanner, set up Application Default Credentials. For more information, see Set up authentication for a local development environment .

  void 
  
 UpdateDataWithNumeric 
 ( 
 google 
 :: 
 cloud 
 :: 
 spanner 
 :: 
 Client 
  
 client 
 ) 
  
 { 
  
 namespace 
  
 spanner 
  
 = 
  
 :: 
 google 
 :: 
 cloud 
 :: 
 spanner 
 ; 
  
 auto 
  
 insert_venues 
  
 = 
  
 spanner 
 :: 
 InsertMutationBuilder 
 ( 
  
 "Venues" 
 , 
  
 { 
 "VenueId" 
 , 
  
 "VenueName" 
 , 
  
 "Revenue" 
 , 
  
 "LastUpdateTime" 
 }) 
  
 . 
 EmplaceRow 
 ( 
 1 
 , 
  
 "Venue 1" 
 , 
  
 spanner 
 :: 
 MakeNumeric 
 ( 
 35000 
 ). 
 value 
 (), 
  
 spanner 
 :: 
 CommitTimestamp 
 ()) 
  
 . 
 EmplaceRow 
 ( 
 6 
 , 
  
 "Venue 6" 
 , 
  
 spanner 
 :: 
 MakeNumeric 
 ( 
 104500 
 ). 
 value 
 (), 
  
 spanner 
 :: 
 CommitTimestamp 
 ()) 
  
 . 
 EmplaceRow 
 ( 
  
 14 
 , 
  
 "Venue 14" 
 , 
  
 spanner 
 :: 
 MakeNumeric 
 ( 
 "99999999999999999999999999999.99" 
 ). 
 value 
 (), 
  
 spanner 
 :: 
 CommitTimestamp 
 ()) 
  
 . 
 Build 
 (); 
  
 auto 
  
 commit_result 
  
 = 
  
 client 
 . 
 Commit 
 ( 
 spanner 
 :: 
 Mutations 
 { 
 insert_venues 
 }); 
  
 if 
  
 ( 
 ! 
 commit_result 
 ) 
  
 throw 
  
 std 
 :: 
 move 
 ( 
 commit_result 
 ). 
 status 
 (); 
  
 std 
 :: 
 cout 
 << 
 "Insert was successful [spanner_update_data_with_numeric_column] 
 \n 
 " 
 ; 
 }

C#

To learn how to install and use the client library for Spanner, see Spanner client libraries .

To authenticate to Spanner, set up Application Default Credentials. For more information, see Set up authentication for a local development environment .

  using 
  
  Google.Cloud.Spanner.Data 
 
 ; 
 using 
  
  Google.Cloud.Spanner.V1 
 
 ; 
 using 
  
 System 
 ; 
 using 
  
 System.Collections.Generic 
 ; 
 using 
  
 System.Linq 
 ; 
 using 
  
 System.Threading.Tasks 
 ; 
 public 
  
 class 
  
 UpdateDataWithNumericAsyncSample 
 { 
  
 public 
  
 class 
  
 Venue 
  
 { 
  
 public 
  
 int 
  
 VenueId 
  
 { 
  
 get 
 ; 
  
 set 
 ; 
  
 } 
  
 public 
  
  SpannerNumeric 
 
  
 Revenue 
  
 { 
  
 get 
 ; 
  
 set 
 ; 
  
 } 
  
 } 
  
 public 
  
 async 
  
 Task<int> 
  
 UpdateDataWithNumericAsync 
 ( 
 string 
  
 projectId 
 , 
  
 string 
  
 instanceId 
 , 
  
 string 
  
 databaseId 
 ) 
  
 { 
  
 string 
  
 connectionString 
  
 = 
  
 $"Data Source=projects/{projectId}/instances/{instanceId}/databases/{databaseId}" 
 ; 
  
 List<Venue> 
  
 venues 
  
 = 
  
 new 
  
 List<Venue> 
  
 { 
  
 new 
  
 Venue 
  
 { 
  
 VenueId 
  
 = 
  
 4 
 , 
  
 Revenue 
  
 = 
  
  SpannerNumeric 
 
 . 
  Parse 
 
 ( 
 "35000" 
 ) 
  
 }, 
  
 new 
  
 Venue 
  
 { 
  
 VenueId 
  
 = 
  
 19 
 , 
  
 Revenue 
  
 = 
  
  SpannerNumeric 
 
 . 
  Parse 
 
 ( 
 "104500" 
 ) 
  
 }, 
  
 new 
  
 Venue 
  
 { 
  
 VenueId 
  
 = 
  
 42 
 , 
  
 Revenue 
  
 = 
  
  SpannerNumeric 
 
 . 
  Parse 
 
 ( 
 "99999999999999999999999999999.99" 
 ) 
  
 }, 
  
 }; 
  
 // Create connection to Cloud Spanner. 
  
 using 
  
 var 
  
 connection 
  
 = 
  
 new 
  
  SpannerConnection 
 
 ( 
 connectionString 
 ); 
  
 await 
  
 connection 
 . 
  OpenAsync 
 
 (); 
  
 var 
  
 affectedRows 
  
 = 
  
 await 
  
 Task 
 . 
 WhenAll 
 ( 
 venues 
 . 
  Select 
 
 ( 
 venue 
  
 = 
>  
 { 
  
 // Update rows in the Venues table. 
  
 using 
  
 var 
  
 cmd 
  
 = 
  
 connection 
 . 
  CreateUpdateCommand 
 
 ( 
 "Venues" 
 , 
  
 new 
  
  SpannerParameterCollection 
 
  
 { 
  
 { 
  
 "VenueId" 
 , 
  
  SpannerDbType 
 
 . 
  Int64 
 
 , 
  
 venue 
 . 
 VenueId 
  
 }, 
  
 { 
  
 "Revenue" 
 , 
  
  SpannerDbType 
 
 . 
  Numeric 
 
 , 
  
 venue 
 . 
 Revenue 
  
 } 
  
 }); 
  
 return 
  
 cmd 
 . 
 ExecuteNonQueryAsync 
 (); 
  
 })); 
  
 Console 
 . 
 WriteLine 
 ( 
 "Data updated." 
 ); 
  
 return 
  
 affectedRows 
 . 
 Sum 
 (); 
  
 } 
 }

Go

To learn how to install and use the client library for Spanner, see Spanner client libraries .

To authenticate to Spanner, set up Application Default Credentials. For more information, see Set up authentication for a local development environment .

  import 
  
 ( 
  
 "context" 
  
 "io" 
  
 "cloud.google.com/go/spanner" 
 ) 
 func 
  
 updateDataWithNumericColumn 
 ( 
 w 
  
 io 
 . 
 Writer 
 , 
  
 db 
  
 string 
 ) 
  
 error 
  
 { 
  
 ctx 
  
 := 
  
 context 
 . 
 Background 
 () 
  
 client 
 , 
  
 err 
  
 := 
  
 spanner 
 . 
 NewClient 
 ( 
 ctx 
 , 
  
 db 
 ) 
  
 if 
  
 err 
  
 != 
  
 nil 
  
 { 
  
 return 
  
 err 
  
 } 
  
 defer 
  
 client 
 . 
 Close 
 () 
  
 cols 
  
 := 
  
 [] 
 string 
 { 
 "VenueId" 
 , 
  
 "Revenue" 
 } 
  
 _ 
 , 
  
 err 
  
 = 
  
 client 
 . 
  Apply 
 
 ( 
 ctx 
 , 
  
 [] 
 * 
 spanner 
 . 
 Mutation 
 { 
  
 spanner 
 . 
 Update 
 ( 
 "Venues" 
 , 
  
 cols 
 , 
  
 [] 
 interface 
 {}{ 
 4 
 , 
  
 "35000" 
 }), 
  
 spanner 
 . 
 Update 
 ( 
 "Venues" 
 , 
  
 cols 
 , 
  
 [] 
 interface 
 {}{ 
 19 
 , 
  
 "104500" 
 }), 
  
 spanner 
 . 
 Update 
 ( 
 "Venues" 
 , 
  
 cols 
 , 
  
 [] 
 interface 
 {}{ 
 42 
 , 
  
 "99999999999999999999999999999.99" 
 }), 
  
 }) 
  
 return 
  
 err 
 }

Java

To learn how to install and use the client library for Spanner, see Spanner client libraries .

To authenticate to Spanner, set up Application Default Credentials. For more information, see Set up authentication for a local development environment .

  import 
  
 com.google.cloud.spanner. DatabaseClient 
 
 ; 
 import 
  
 com.google.cloud.spanner. DatabaseId 
 
 ; 
 import 
  
 com.google.cloud.spanner. Mutation 
 
 ; 
 import 
  
 com.google.cloud.spanner. Spanner 
 
 ; 
 import 
  
 com.google.cloud.spanner. SpannerOptions 
 
 ; 
 import 
  
 com.google.common.collect.ImmutableList 
 ; 
 import 
  
 java.math.BigDecimal 
 ; 
 class 
 UpdateNumericDataSample 
  
 { 
  
 static 
  
 void 
  
 updateNumericData 
 () 
  
 { 
  
 // TODO(developer): Replace these variables before running the sample. 
  
 String 
  
 projectId 
  
 = 
  
 "my-project" 
 ; 
  
 String 
  
 instanceId 
  
 = 
  
 "my-instance" 
 ; 
  
 String 
  
 databaseId 
  
 = 
  
 "my-database" 
 ; 
  
 try 
  
 ( 
  Spanner 
 
  
 spanner 
  
 = 
  
  SpannerOptions 
 
 . 
 newBuilder 
 (). 
 setProjectId 
 ( 
 projectId 
 ). 
 build 
 (). 
 getService 
 ()) 
  
 { 
  
  DatabaseClient 
 
  
 client 
  
 = 
  
 spanner 
 . 
 getDatabaseClient 
 ( 
  DatabaseId 
 
 . 
 of 
 ( 
 projectId 
 , 
  
 instanceId 
 , 
  
 databaseId 
 )); 
  
 updateNumericData 
 ( 
 client 
 ); 
  
 } 
  
 } 
  
 static 
  
 void 
  
 updateNumericData 
 ( 
  DatabaseClient 
 
  
 client 
 ) 
  
 { 
  
 client 
 . 
  write 
 
 ( 
  
 ImmutableList 
 . 
 of 
 ( 
  
 Mutation 
 . 
 newInsertOrUpdateBuilder 
 ( 
 "Venues" 
 ) 
  
 . 
 set 
 ( 
 "VenueId" 
 ) 
  
 . 
 to 
 ( 
 4L 
 ) 
  
 . 
 set 
 ( 
 "Revenue" 
 ) 
  
 . 
 to 
 ( 
 new 
  
 BigDecimal 
 ( 
 "35000" 
 )) 
  
 . 
 build 
 (), 
  
 Mutation 
 . 
 newInsertOrUpdateBuilder 
 ( 
 "Venues" 
 ) 
  
 . 
 set 
 ( 
 "VenueId" 
 ) 
  
 . 
 to 
 ( 
 19L 
 ) 
  
 . 
 set 
 ( 
 "Revenue" 
 ) 
  
 . 
 to 
 ( 
 new 
  
 BigDecimal 
 ( 
 "104500" 
 )) 
  
 . 
 build 
 (), 
  
 Mutation 
 . 
 newInsertOrUpdateBuilder 
 ( 
 "Venues" 
 ) 
  
 . 
 set 
 ( 
 "VenueId" 
 ) 
  
 . 
 to 
 ( 
 42L 
 ) 
  
 . 
 set 
 ( 
 "Revenue" 
 ) 
  
 . 
 to 
 ( 
 new 
  
 BigDecimal 
 ( 
 "99999999999999999999999999999.99" 
 )) 
  
 . 
 build 
 ())); 
  
 System 
 . 
 out 
 . 
 println 
 ( 
 "Venues successfully updated" 
 ); 
  
 } 
 }

Node.js

To learn how to install and use the client library for Spanner, see Spanner client libraries .

To authenticate to Spanner, set up Application Default Credentials. For more information, see Set up authentication for a local development environment .

  // Imports the Google Cloud client library. 
 const 
  
 { 
 Spanner 
 } 
  
 = 
  
 require 
 ( 
 ' @google-cloud/spanner 
' 
 ); 
 /** 
 * TODO(developer): Uncomment the following lines before running the sample. 
 */ 
 // const projectId = 'my-project-id'; 
 // const instanceId = 'my-instance'; 
 // const databaseId = 'my-database'; 
 // Creates a client. 
 const 
  
 spanner 
  
 = 
  
 new 
  
  Spanner 
 
 ({ 
  
 projectId 
 : 
  
 projectId 
 , 
 }); 
 // Gets a reference to a Cloud Spanner instance and database. 
 const 
  
 instance 
  
 = 
  
 spanner 
 . 
 instance 
 ( 
 instanceId 
 ); 
 const 
  
 database 
  
 = 
  
 instance 
 . 
 database 
 ( 
 databaseId 
 ); 
 // Instantiate Spanner table objects. 
 const 
  
 venuesTable 
  
 = 
  
 database 
 . 
 table 
 ( 
 'Venues' 
 ); 
 const 
  
 data 
  
 = 
  
 [ 
  
 { 
  
 VenueId 
 : 
  
 '4' 
 , 
  
 Revenue 
 : 
  
  Spanner 
 
 . 
  numeric 
 
 ( 
 '35000' 
 ), 
  
 LastUpdateTime 
 : 
  
 'spanner.commit_timestamp()' 
 , 
  
 }, 
  
 { 
  
 VenueId 
 : 
  
 '19' 
 , 
  
 Revenue 
 : 
  
  Spanner 
 
 . 
  numeric 
 
 ( 
 '104500' 
 ), 
  
 LastUpdateTime 
 : 
  
 'spanner.commit_timestamp()' 
 , 
  
 }, 
  
 { 
  
 VenueId 
 : 
  
 '42' 
 , 
  
 Revenue 
 : 
  
  Spanner 
 
 . 
  numeric 
 
 ( 
 '99999999999999999999999999999.99' 
 ), 
  
 LastUpdateTime 
 : 
  
 'spanner.commit_timestamp()' 
 , 
  
 }, 
 ]; 
 // Updates rows in the Venues table. 
 try 
  
 { 
  
 await 
  
 venuesTable 
 . 
 update 
 ( 
 data 
 ); 
  
 console 
 . 
 log 
 ( 
 'Updated data.' 
 ); 
 } 
  
 catch 
  
 ( 
 err 
 ) 
  
 { 
  
 console 
 . 
 error 
 ( 
 'ERROR:' 
 , 
  
 err 
 ); 
 } 
  
 finally 
  
 { 
  
 // Close the database when finished. 
  
 database 
 . 
 close 
 (); 
 }

PHP

To learn how to install and use the client library for Spanner, see Spanner client libraries .

To authenticate to Spanner, set up Application Default Credentials. For more information, see Set up authentication for a local development environment .

  use Google\Cloud\Spanner\SpannerClient; 
 /** 
 * Updates sample data in a table with a NUMERIC column. 
 * 
 * Before executing this method, a new column Revenue has to be added to the Venues 
 * table by applying the DDL statement "ALTER TABLE Venues ADD COLUMN Revenue NUMERIC". 
 * 
 * Example: 
 * ``` 
 * update_data_with_numeric_column($instanceId, $databaseId); 
 * ``` 
 * 
 * @param string $instanceId The Spanner instance ID. 
 * @param string $databaseId The Spanner database ID. 
 */ 
 function update_data_with_numeric_column(string $instanceId, string $databaseId): void 
 { 
 $spanner = new SpannerClient(); 
 $instance = $spanner->instance($instanceId); 
 $database = $instance->database($databaseId); 
 $database->transaction(['singleUse' => true]) 
 ->updateBatch('Venues', [ 
 ['VenueId' => 4, 'Revenue' => $spanner->numeric('35000')], 
 ['VenueId' => 19, 'Revenue' => $spanner->numeric('104500')], 
 ['VenueId' => 42, 'Revenue' => $spanner->numeric('99999999999999999999999999999.99')], 
 ]) 
 ->commit(); 
 print('Updated data.' . PHP_EOL); 
 }

Python

To learn how to install and use the client library for Spanner, see Spanner client libraries .

To authenticate to Spanner, set up Application Default Credentials. For more information, see Set up authentication for a local development environment .

  def 
  
 update_data_with_numeric 
 ( 
 instance_id 
 , 
 database_id 
 ): 
  
 """Updates Venues tables in the database with the NUMERIC 
 column. 
 This updates the `Revenue` column which must be created before 
 running this sample. You can add the column by running the 
 `add_numeric_column` sample or by running this DDL statement 
 against your database: 
 ALTER TABLE Venues ADD COLUMN Revenue NUMERIC 
 """ 
 spanner_client 
 = 
 spanner 
 . 
 Client 
 () 
 instance 
 = 
 spanner_client 
 . 
 instance 
 ( 
 instance_id 
 ) 
 database 
 = 
 instance 
 . 
 database 
 ( 
 database_id 
 ) 
 with 
 database 
 . 
 batch 
 () 
 as 
 batch 
 : 
 batch 
 . 
 update 
 ( 
 table 
 = 
 "Venues" 
 , 
 columns 
 = 
 ( 
 "VenueId" 
 , 
 "Revenue" 
 ), 
 values 
 = 
 [ 
 ( 
 4 
 , 
 decimal 
 . 
 Decimal 
 ( 
 "35000" 
 )), 
 ( 
 19 
 , 
 decimal 
 . 
 Decimal 
 ( 
 "104500" 
 )), 
 ( 
 42 
 , 
 decimal 
 . 
 Decimal 
 ( 
 "99999999999999999999999999999.99" 
 )), 
 ], 
 ) 
 print 
 ( 
 "Updated data." 
 )

Ruby

To learn how to install and use the client library for Spanner, see Spanner client libraries .

To authenticate to Spanner, set up Application Default Credentials. For more information, see Set up authentication for a local development environment .

  # project_id  = "Your Google Cloud project ID" 
 # instance_id = "Your Spanner instance ID" 
 # database_id = "Your Spanner database ID" 
 require 
  
 "google/cloud/spanner" 
 spanner 
  
 = 
  
 Google 
 :: 
 Cloud 
 :: 
  Spanner 
 
 . 
 new 
  
 project 
 : 
  
 project_id 
 client 
  
 = 
  
 spanner 
 . 
  client 
 
  
 instance_id 
 , 
  
 database_id 
 client 
 . 
 commit 
  
 do 
  
 | 
 c 
 | 
  
 c 
 . 
 update 
  
 "Venues" 
 , 
  
 [ 
  
 { 
  
 VenueId 
 : 
  
 4 
 , 
  
 Revenue 
 : 
  
 "35000" 
  
 }, 
  
 { 
  
 VenueId 
 : 
  
 19 
 , 
  
 Revenue 
 : 
  
 "104500" 
  
 }, 
  
 { 
  
 VenueId 
 : 
  
 42 
 , 
  
 Revenue 
 : 
  
 "99999999999999999999999999999.99" 
  
 } 
  
 ] 
 end 
 puts 
  
 "Updated data"

What's next

To search and filter code samples for other Google Cloud products, see the Google Cloud sample browser .

Mutations update data with NUMERIC Stay organized with collections Save and categorize content based on your preferences.

Explore further

Code sample

C++

C#

Go

Java

Node.js

PHP

Python

Ruby

What's next

Mutations update data with NUMERIC