摘要: 1.列转换 1:每个字母转成一行 SELECT SUBSTR(A.COLUMN1, LEV, 1) COLUMN1FROM ( SELECT 'AABDC' COLUMN1 FROM DUAL) A,(SELECT LEVEL LEV FROM DUAL CONNECT BY LEVEL<=100) 阅读全文
posted @ 2016-09-28 14:40 Brin Page 阅读(448) 评论(0) 推荐(0) 编辑