ADO.NET Provider for Amazon DynamoDB

Build 24.0.9060

DELETE Statements

To delete information from a table, use DELETE statements.

DELETE Syntax

The DELETE statement requires the table name in the FROM clause and the row's primary key in the WHERE clause, as shown in the following example:

<delete_statement> ::= DELETE FROM <table_name> WHERE { Id = <expression> } [ { AND | OR } ... ]

<expression> ::=
  | @ <parameter> 
  | ?
  | <literal>

You can use the ExecuteNonQuery method to execute data manipulation commands and retrieve the number of affected rows, as shown in the following example:

C#

String connectionString = "AWS Access Key=xxx;AWS Secret Key=xxx;Domain=amazonaws.com;AWS Region=OREGON;";
using (AmazonDynamoDBConnection connection = new AmazonDynamoDBConnection(connectionString)) {
  int rowsAffected;
  AmazonDynamoDBCommand cmd = new AmazonDynamoDBCommand("DELETE FROM Account WHERE Id = @myId", connection);
  cmd.Parameters.Add(new AmazonDynamoDBParameter("myId","1"));
  rowsAffected = cmd.ExecuteNonQuery();
}

VB.NET

  
Dim connectionString As [String] = "AWS Access Key=xxx;AWS Secret Key=xxx;Domain=amazonaws.com;AWS Region=OREGON;"
Using connection As New AmazonDynamoDBConnection(connectionString)
  Dim rowsAffected As Integer
  Dim cmd As New AmazonDynamoDBCommand("DELETE FROM Account WHERE Id = @myId", connection)
  cmd.Parameters.Add(New AmazonDynamoDBParameter("myId", "1"))
  rowsAffected = cmd.ExecuteNonQuery()
End Using

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Build 24.0.9060