MySQL主从复制（基于 5.6） https://dev.mysql.com/doc/refman/5.6/en/replication.html https://dev.mysql.com/doc/refman/5.6/en/faqs-replication.html https://dev.mysql.com/doc/refman/5.6/en/replication-howto.html

//删除存储过程 DROP PROCEDURE IF EXISTS makeInsureAmt; //创建存储过程 DELIMITER // CREATE PROCEDURE makeInsureAmt(IN arg INT,IN arg2 INT) BEGIN DECLARE var INT; SET var=arg; WHILE var < arg2 DO INSERT INTO cic

产品支持矩阵 https://www.elastic.co/cn/support/matrix 下载地址 https://www.elastic.co/cn/downloads/elasticsearch 安装配置 修改Linux配置 cat >> /etc/security/limits.conf ulimit -n 65536 ```` ```shell cat >>

-- 查询会话： SELECT status, type, COUNT(*) as value FROM v$session GROUP BY status, type; -- 查询资源使用情况： SELECT resource_name,current_utilization,CASE WHEN TRIM(limit_value) LIKE 'UNLIMITED' T