oracle中的||替换成mysql的concat
发布时间:2020-12-12 15:19:48 所属栏目:百科 来源:网络整理
导读:oracle: sqlstr := 'select count(tname) from tab where tname = ''' || tablename || ''''; 等价于:sqlstr :=( 'select count(tname) from tab where tname = '' ' )|| tablename || (' '' '); sqlstr :='create index ZC_' || tablename || '_SYFX o
oracle: sqlstr := 'select count(tname) from tab where tname = ''' || tablename || ''''; 等价于:sqlstr :=( 'select count(tname) from tab where tname = '' ' )|| tablename || (' '' ');
sqlstr :='create index ZC_' || tablename || '_SYFX on ' || tablename || ' (SYFX)'; 等价于:sqlstr :='create index ZC_' || tablename || '_SYFX on ' || tablename || ' (SYFX)' ; (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |