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1. UPDATE Óï¾ä

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UPDATE table_name
SET column1 = value1, column2 = value2, ...
WHERE condition;

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ʾÀý£º¸üÐÂ±í “employees” ÖÐÃûΪ “John Smith” µÄÔ±¹¤µÄÈËΪ£º

UPDATE employees
SET salary = 50000
WHERE name = 'John Smith';

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2. DELETE Óï¾ä

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DELETE FROM table_name
WHERE condition;

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ʾÀý£º´Ó±í “customers” ÖÐɾ³ý ID Ϊ 10 µÄ¿Í»§£º

DELETE FROM customers
WHERE id = 10;

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