ADO.NET Provider for Apache Kafka

Build 21.0.7930

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 = "User=admin;Password=pass;BootStrapServers=https://localhost:9091;Topic=MyTopic;";
using (ApacheKafkaConnection connection = new ApacheKafkaConnection(connectionString)) {
  int rowsAffected;
  ApacheKafkaCommand cmd = new ApacheKafkaCommand("DELETE FROM SampleTable_1 WHERE Id = @myId", connection);
  cmd.Parameters.Add(new ApacheKafkaParameter("myId","6"));
  rowsAffected = cmd.ExecuteNonQuery();
}

VB.NET

  
Dim connectionString As [String] = "User=admin;Password=pass;BootStrapServers=https://localhost:9091;Topic=MyTopic;"
Using connection As New ApacheKafkaConnection(connectionString)
  Dim rowsAffected As Integer
  Dim cmd As New ApacheKafkaCommand("DELETE FROM SampleTable_1 WHERE Id = @myId", connection)
  cmd.Parameters.Add(New ApacheKafkaParameter("myId", "6"))
  rowsAffected = cmd.ExecuteNonQuery()
End Using

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Build 21.0.7930