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CREATE TABLE book ( book_id INT PRIMARY KEY, -- Π£Π½ΠΈΠΊΠ°Π»ΡŒΠ½Ρ‹ΠΉ ΠΈΠ΄Π΅Π½Ρ‚ΠΈΡ„ΠΈΠΊΠ°Ρ‚ΠΎΡ€ ΠΊΠ½ΠΈΠ³ΠΈ title VARCHAR(255), -- НазваниС ΠΊΠ½ΠΈΠ³ΠΈ author VARCHAR(100), -- Автор ΠΊΠ½ΠΈΠ³ΠΈ price DECIMAL(10, 2), -- Π¦Π΅Π½Π° ΠΊΠ½ΠΈΠ³ΠΈ (Π΄ΠΎ 10 Ρ†ΠΈΡ„Ρ€, 2 послС запятой) amount INT -- ΠšΠΎΠ»ΠΈΡ‡Π΅ΡΡ‚Π²ΠΎ экзСмпляров Π½Π° складС ); INSERT INTO book (book_id, title, author, price, amount) VALUES (1, 'ΠœΠ°ΡΡ‚Π΅Ρ€ ΠΈ ΠœΠ°Ρ€Π³Π°Ρ€ΠΈΡ‚Π°', 'Π‘ΡƒΠ»Π³Π°ΠΊΠΎΠ² М.А.', 670.99, 3), (2, 'БСлая гвардия', 'Π‘ΡƒΠ»Π³Π°ΠΊΠΎΠ² М.А.', 540.50, 5), (3, 'Π˜Π΄ΠΈΠΎΡ‚', 'ДостоСвский Π€.М.', 460.00, 10), (4, 'Π‘Ρ€Π°Ρ‚ΡŒΡ ΠšΠ°Ρ€Π°ΠΌΠ°Π·ΠΎΠ²Ρ‹', 'ДостоСвский Π€.М.', 799.01, 3), (5, 'Π˜Π³Ρ€ΠΎΠΊ', 'ДостоСвский Π€.М.', 480.50, 10), (6, 'БтихотворСния ΠΈ поэмы', 'ЕсСнин Π‘.А.', 650.00, 15); SELECT SUM(amount) AS total_books, -- Π‘ΡƒΠΌΠΌΠ° всСх экзСмпляров SUM(price * amount) AS total_value -- ΠžΠ±Ρ‰Π°Ρ ΡΡ‚ΠΎΠΈΠΌΠΎΡΡ‚ΡŒ всСх ΠΊΠ½ΠΈΠ³ FROM book;

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