今天在现场的哥们发来异常,让我解决,错误信息如下: HTTP Status 500 - Read operation to server 192.168.1.110:20001 failed on database wpdb; nested exception is com.mongodb.MongoExce...
1,修改1列 update student s, city c set s.city_name = c.name where s.city_code = c.code; 2,修改多个列 update a, b set a.title=b.title, a.name=b.name where a.id=b.id •子查询 updat...