// Creates the Retrieve SQL.
 private static function RetrieveSQL(LJCDataManager $manager)
 {
   $nameValue = "NameValue";
   $methodName = "RetrieveSQL()";
 
   $data = new LJCDbColumns();
   $data->Add("Name", value: $nameValue);
   $affectedCount = $manager->Add($data);
 
   // Retrieve with SQLLoad().
   // See constructor for how to create $manager.
   $keyColumns = new LJCDbColumns();
   $keyColumns->Add("Name", value: $nameValue);
   $result = $manager->RetrieveSQL($keyColumns);
 
   // result:
   // select
   //   TableName.ID,
   //   TableName.Name
   // from TableName
   // where TableName.Name = 'NameValue'
 
   $keys = new LJCDbColumns();
   $keys->Add("Name", value: $updateValue);
   $affectedCount = $manager->Delete($keys);
 }