ADO.NET Provider for Cloudant

Build 23.0.8839

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=abc123; Password=abcdef;";
using (CloudantConnection connection = new CloudantConnection(connectionString)) {
  int rowsAffected;
  CloudantCommand cmd = new CloudantCommand("DELETE FROM Movies WHERE Id = @myId", connection);
  cmd.Parameters.Add(new CloudantParameter("myId","70f6284d2a395396dbb3a60b4ce3d2d6"));
  rowsAffected = cmd.ExecuteNonQuery();
}

VB.NET

  
Dim connectionString As [String] = "User=abc123; Password=abcdef;"
Using connection As New CloudantConnection(connectionString)
  Dim rowsAffected As Integer
  Dim cmd As New CloudantCommand("DELETE FROM Movies WHERE Id = @myId", connection)
  cmd.Parameters.Add(New CloudantParameter("myId", "70f6284d2a395396dbb3a60b4ce3d2d6"))
  rowsAffected = cmd.ExecuteNonQuery()
End Using

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Build 23.0.8839