2025年sql難度面試題及答案本文借鑒了近年相關(guān)面試中的經(jīng)典題創(chuàng)作而成，力求幫助考生深入理解面試題型，掌握答題技巧，提升應(yīng)試能力。題目一：查詢最近一周內(nèi)訂單金額超過(guò)1000元的客戶名單及其訂單詳情答案：```sqlSELECTc.customer_name,o.order_id,o.order_date,o.order_amountFROMcustomerscJOINordersoONc.customer_id=o.customer_idWHEREo.order_dateBETWEENDATE_SUB(CURDATE(),INTERVAL7DAY)ANDCURDATE()ANDo.order_amount>1000;```題目二：計(jì)算每個(gè)客戶的訂單總額，并篩選出訂單總額超過(guò)5000的客戶答案：```sqlSELECTc.customer_id,c.customer_name,SUM(o.order_amount)AStotal_order_amountFROMcustomerscJOINordersoONc.customer_id=o.customer_idGROUPBYc.customer_id,c.customer_nameHAVINGSUM(o.order_amount)>5000;```題目三：找出在2024年至少下過(guò)3個(gè)訂單的客戶名單答案：```sqlSELECTc.customer_id,c.customer_nameFROMcustomerscJOINordersoONc.customer_id=o.customer_idWHEREYEAR(o.order_date)=2024GROUPBYc.customer_id,c.customer_nameHAVINGCOUNT(o.order_id)>=3;```題目四：查詢所有訂單詳情，并按訂單金額降序排列，如果金額相同，則按訂單日期升序排列答案：```sqlSELECTo.order_id,o.customer_id,o.order_date,o.order_amount,duct_nameFROMordersoJOINorder_detailsodONo.order_id=od.order_idJOINproductspONduct_id=duct_idORDERBYo.order_amountDESC,o.order_dateASC;```題目五：統(tǒng)計(jì)每個(gè)產(chǎn)品類別中的產(chǎn)品數(shù)量，并篩選出產(chǎn)品數(shù)量少于5的類別答案：```sqlSELECTc.category_name,COUNT(duct_id)ASproduct_countFROMcategoriescJOINproductspONc.category_id=p