摘要： centos7安装kafka安装教程：https://blog.csdn.net/shenyuanhaojie/article/details/121200011 一.安装jdkrpm -qa | grep javarpm -qa | grep jdkrpm -qa | grep gcjrpm -q 阅读全文

摘要： 1.mysql行拼接 SELECT GROUP_CONCAT(area_name SEPARATOR ',') from area 1.1效果图 2.clinkhouse行拼接 select groupArray(t3.enterprise_name) AS kpi_asc from area t1 阅读全文