ADO.NET Provider for Apache HBase

Build 21.0.7930

DELETE Statements

To delete information from a table, use DELETE statements.


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:


String connectionString = "Server=;Port=8080;";
using (ApacheHBaseConnection connection = new ApacheHBaseConnection(connectionString)) {
  int rowsAffected;
  ApacheHBaseCommand cmd = new ApacheHBaseCommand("DELETE FROM Account WHERE Id = @myId", connection);
  cmd.Parameters.Add(new ApacheHBaseParameter("myId","1"));
  rowsAffected = cmd.ExecuteNonQuery();


Dim connectionString As [String] = "Server=;Port=8080;"
Using connection As New ApacheHBaseConnection(connectionString)
  Dim rowsAffected As Integer
  Dim cmd As New ApacheHBaseCommand("DELETE FROM Account WHERE Id = @myId", connection)
  cmd.Parameters.Add(New ApacheHBaseParameter("myId", "1"))
  rowsAffected = cmd.ExecuteNonQuery()
End Using

Copyright (c) 2021 CData Software, Inc. - All rights reserved.
Build 21.0.7930