--создаем таблицу с информаией о клиенте
CREATE TABLE Clients
(Ow_id NUMBER,
Birth_dt DATE,
Email_flg NUMBER,
Mobile_app_flg NUMBER
);
--наполняем ее даными
INSERT ALL
INTO Clients (Ow_id, Birth_dt, Email_flg, Mobile_app_flg) VALUES (123, '17.06.2022', 0, 1)
INTO Clients (Ow_id, Birth_dt, Email_flg, Mobile_app_flg) VALUES (124, '25.06.2022', 1, 1)
INTO Clients (Ow_id, Birth_dt, Email_flg, Mobile_app_flg) VALUES (142, '16.06.2022', 1, 1)
INTO Clients (Ow_id, Birth_dt, Email_flg, Mobile_app_flg) VALUES (143, '17.06.2022', 0, 1)
INTO Clients (Ow_id, Birth_dt, Email_flg, Mobile_app_flg) VALUES (144, '17.06.2022', 0, 0)
INTO Clients (Ow_id, Birth_dt, Email_flg, Mobile_app_flg) VALUES (145, '29.06.2009', 0, 0)
SELECT * FROM Clients;