CREATE TABLE Students (id SERIAL PRIMARY KEY, name CHAR(20), age INT, gpa DOUBLE);
---создать таблицу
INSERT INTO Students VALUES
(1, 'Adam', 19, 4.0),
(2, 'Zaqsy', 18, 5.0),
(3, 'aaa', 20, 2.5);
---заполнить таблицу
SELECT * FROM Students;
---выборка из таблицы
---UPDATE Students SET gpa = 3.5 WHERE name = 'Zaqsy';
---SELECT * FROM Students;
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