-- 查询一个数据库表中的索引及索引列use [RuPengWangDB]GOSELECT indexname = a.name , tablename = c. name , indexcolumns = d .name , a .indidFROM sysindexes a JOIN sysindexkeys b ON a .id = b .id AND a .indid = b.indid JOIN sysobjects c ON b .id = c .id
Oracle 语句中“||”代表什么啊? oracle数据库表中,插入数据的时候如何产生一个 字母+数字 编号? 排序的话,用order by来处理即可.比如:cola123a234b999b335select * from tablename order by col; 结果就是 cola123a234b335b999 如果按倒序排列:select * from tablename order by col desc; 结果就是 colb999b335a234a123 其他回答 先