/// <summary>
/// Returns delete query for synchronized capmaign participants.
/// </summary>
/// <param name="userConnection">An instance of <see cref="UserConnection"/>.</param>
/// <returns>Delete query for synchronized campaign participant.</returns>
protected virtual Delete GetDeleteSynchronizedQuery(UserConnection userConnection)
{
var delete = new Delete(userConnection)
.From(CampaignParticipantOpTableName);
delete.AddCondition(ParticipantsToSyncSelect.Condition, LogicalOperation.And);
return(delete);
}