MYSQL 根据某个字段值去替换另外一个字段值里的内容数据SQL脚本

在真实场景中，遇到一种状况，就是假设你的订单详情表里的商品详情字段，里面的合同信息须要调整，而项目经理给了一份正确excel文档给你，里面指明了哪一些订单号对应哪一些合同编号，订单详情表是没有合同编号字段的，只有ID，订单号，商品详情，购买数量，单价，商品ID等字段，而具体的商品详情字段值为

{"prodSpecId":2323211,"prodId":23232,"prodNo":"010641","prodName":"格力A","brandName":"格力","itemId":"18139","areaCode":"0","specName":"1匹","specValueName":"[{\"parentSpecNo\":163,\"parentSpecName\":\"规格\",\"specNo\":2,\"specName\":\"1匹\",\"specIndex\":0}]","oldPrice":1000.00,"nowPrice":1109.38,"untaxOriginalPrice":884.955752,"untaxPresentPrice":981.752212,"supplierPrice":1109.38,"catalog":"装卸/通信/安防/通用/空调制冷/广播影像/检测维修设备>空调/制冷设备>分体空调","catalogCode":"1144","quantity":1,"picPath":"http://30.33.56.67//pic/product//20192191550565720074.png","contacts":[{"id":null,"supplierId":28,"contactsName":"空调","contactsPhone":"03189898989","contactsMail":"zhanglei@cs.com"}],"stock":9999,"rate":0.1300,"status":1,"serviceProd":-1,"productUUID":"5c9ecec3c58b464c92016e75a4e9f1d2","supplierSubOrderNo":null,"supplierSubOrderStatus":null,"serviceProducts":[{"prodId":7335,"productNo":"007212","catalogId":1144,"supplierId":28,"productName":"不锈钢支架 5P 海尔专用 （全国可供）","quantity":1,"imgPath":"http://pic.colipu.com/pmspic/ItemPicture\\5\\49\\348\\322952\\Original\\322952_1029088.jpg","specName":"[{\"parentSpecNo\":172,\"parentSpecName\":\"model\",\"specNo\":2,\"specName\":\"5P\",\"specIndex\":0}]","nowPrice":56.88,"price":88.90,"untaxOriginalPrice":78.672566,"untaxPresentPrice":50.336283,"randomNumber":"15990b07b3864d94b7e27bb738447618","specOptId":7290,"rate":0.1300},{"prodId":7337,"productNo":"007214","catalogId":1144,"supplierId":28,"productName":"pvc水管 海尔专用 （全国可供）","quantity":1,"imgPath":"http://pic.colipu.com/pmspic/ItemPicture\\5\\49\\348\\322950\\Original\\322950_1029086.jpg","specName":"[{\"parentSpecNo\":172,\"parentSpecName\":\"model\",\"specNo\":2,\"specName\":\"model\",\"specIndex\":0}]","nowPrice":52.50,"price":52.50,"untaxOriginalPrice":46.460177,"untaxPresentPrice":46.460177,"randomNumber":"b76a0e1cf2b244ac861902b0c047c190","specOptId":7292,"rate":0.1300}],"pmsContractVo":{"contractNo":"CSN-MYG-1******3013","pmsContractNo":"402881eb67826581016782979fa88765","contractName":"空调供货、安*****务框架合做协议","contractType":"空调及制冷设备","contarctAmountRmb":10000000.00,"targetId":"402881eb6782658101678297a0f80b89","contractId":null,"classifyNo":"1081001","targetName":null,"untaxPrice":0.000000,"rate":0.130,"untaxAmount":0.000000,"quantity":0,"supplierNo":"913702127837350374","supplierOracleNo":null,"taxPrice":1980.000,"taxAmount":0.000},"prodTotalPrice":1109.38,"sku":null,"prodTotalUntaxPrice":981.76}

这时候你该如何处理？
第一步：把excel表导入到新建的临时表（A）里面。
第二步：订单详情表增长合同编号字段。
第三步：订单详情表跟临时表A关联更新。

UPDATE t_ord_detail detail
INNER JOIN A temp ON detail.order_no = temp.order_no
SET detail.contract_no = temp.contract_no;

第四步：替换订单详情表里的合同编号，条件是contract_no不为空
 

UPDATE t_ord_detail SET prod_info = REPLACE(prod_info,SUBSTRING(
      prod_info,
      LOCATE('"contractNo":', prod_info),
      LOCATE(',"pmsContractNo":', prod_info) - LOCATE('"contractNo":', prod_info)
     ),CONCAT('"contractNo":"',contract_no,'"')) where contract_no is not null;