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UPDATE Óï¾äÓÃÓÚÐÞ¸ÄÏÖÓбíÖеÄÊý¾Ý¡£Óï·¨ÈçÏ£º

UPDATE table_name
SET column_name = new_value
WHERE condition;

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table_name£ºÒª¸üÐÂÊý¾ÝµÄ±íÃû¡£

column_name£ºÒª¸üеÄÁÐÃû¡£

new_value£ºÒªÉèÖõÄÐÂÖµ¡£

WHERE condition£ºÖ¸¶¨Òª¸üеÄÐеÄÌõ¼þ¡£

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¸üÐÂÃûΪ “customers” ±íÖÐµÄ “address” ÁУ¬½« “John Doe” µÄµØµã¸üÐÂΪ “123 Main Street”£º

UPDATE customers
SET address = '123 Main Street'
WHERE name = 'John Doe';

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INSERT Óï¾ä£º

INSERT Óï¾äÓÃÓÚÏò±íÖвåÈëÐÂÐС£Óï·¨ÈçÏ£º

INSERT INTO table_name (column1, column2, ...)
VALUES (value1, value2, ...);

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table_name£ºÒª²åÈëÊý¾ÝµÄ±íÃû¡£

column1, column2, …£ºÒª²åÈëÊý¾ÝµÄÁÐÃû¡£

value1, value2, …£ºÒª²åÈëµÄÖµ¡£

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ÏòÃûΪ “orders” µÄ±íÖвåÈëÐÂÐУº

INSERT INTO orders (customer_id, product_id, quantity)
VALUES (1, 5, 2);

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DELETE Óï¾ä£º

DELETE Óï¾äÓÃÓÚ´Ó±íÖÐɾ³ýÐС£Óï·¨ÈçÏ£º

DELETE FROM table_name
WHERE condition;

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table_name£ºÒª´ÓÖÐɾ³ýÊý¾ÝµÄ±íÃû¡£

condition£ºÖ¸¶¨ÒªÉ¾³ýµÄÐеÄÌõ¼þ¡£

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´ÓÃûΪ “products” µÄ±íÖÐɾ³ý²úÆ· ID Ϊ 10 µÄÐУº

DELETE FROM products
WHERE product_id = 10;

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