只需尝试-
SELECt * FROM `pizza_table` WHERe FIND_IN_SET(2,pizza_topping_id)
或REGEXP
SELECt * FROM `pizza_table` WHERe pizza_topping_id REGEXP '^2,|,2$|,2,' OR pizza_topping_id =2
请看演示：demo
只需尝试-
SELECt * FROM `pizza_table` WHERe FIND_IN_SET(2,pizza_topping_id)
或REGEXP
SELECt * FROM `pizza_table` WHERe pizza_topping_id REGEXP '^2,|,2$|,2,' OR pizza_topping_id =2
请看演示：demo
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