伪列
Oracle的字符串转数组以及数组转字符串
Oracle的字符串转数组以及数组转字符串字符串转数组:(SELECT REGEXP_SUBSTR('34,56,-23', '[^,]+', 1, LEVEL, 'i') AS STRFROM DUALCONNECT BY LEVEL <=LENGTH('34,56,-23') - LENGTH(REGEXP_REPLACE('34,56,-23', ',', '')) + 1)针对上⾯语...
mysqllimitoracle_oracle类似与mysql的limit语句
mysqllimitoracle_oracle类似与mysql的limit语句⼀、top-N分析,取最值mysql语句转oracle>crayon读音top-N 分析查询⼀个列最⼤或者最⼩的n个值:webstorm方法>深入理解数组指针与指针数组如:查询⼯资钱两名select rownum,sal from (select rownum ,sal from emp order by sal d...