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create table clients (uid integer primary key, title character varying(50) not null, phone character(15)); create table orders (uid integer primary key, ordernum character(5) unique, client integer not null); insert into clients values(1,'Рога и копыта',''), (2,'Иванов ИИ',''); insert into orders values(1,'A0001',1), (2,'B0001',2); select * from clients; select * from orders;

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