数据库增删改查？平时使用场景？
INSERT INTO [TABLE_NAME] (column1, column2, column3,...columnN) VALUES (value1, value2, value3,...valueN); DELETE FROM [table_name] WHERE [condition]; UPDATE [table_name] SET column1 = value1, column2 = value2...., columnN = valueN; SELECT column1, column2, columnN FROM table_name;
