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about connect by level --层级start with --遍历起始位置prior --父类或上一级sys_connect_by_path() --层级路...
WITH TEST1 AS (SELECT LISTAGG(COLUMN_NAME, ',') WITHIN GROUP(ORDER BY COLUMN_ID) WORKIN...
环境:11.2.0.4.0,字符集UTF8 with test1 as ( select '离学校放假倒计时第20天' a from dual union all selec...
创建MySQL所需目录 创建MySQL使用的用户和组 检查编译环境,在检查完成后可通过“echo $?”命令检查是否有错误,当输入结果为0是表示没有错误 编译、安装MySQL...