DELETE FROM LEBSes.dbo.Групповое WHERE Фамилия IS NULL;
DELETE FROM LEBSes.dbo.Групповое WHERE Имя IS NULL;
DELETE FROM LEBSes.dbo.Групповое WHERE Отчество IS NULL;
DELETE FROM LEBSes.dbo.Групповое WHERE Номер IS NULL;
DELETE FROM LEBSes.dbo.Групповое WHERE Номер_телефона IS NULL;
DELETE FROM LEBSes.dbo.Групповое WHERE E_mail IS NULL;
DELETE FROM LEBSes.dbo.Групповое WHERE Дата_рождения IS NULL;
DELETE FROM LEBSes.dbo.Групповое WHERE Серия IS NULL;
DELETE FROM LEBSes.dbo.Групповое WHERE Логин IS NULL;
DELETE FROM LEBSes.dbo.Групповое WHERE Пароль IS NULL;
DELETE FROM LEBSes.dbo.Групповое WHERE Группа IS NULL;
DELETE FROM LEBSes.dbo.Групповое WHERE Назначение IS NULL;



