逆水寒的博客

java程序启动重启脚本 #!/bin/bash cmd=$1 args='-Xms2g -Xmx2g' if [ $# -gt 2 ] ; then echo "$#" app='$2' echo "Two parameters $app" else echo "$#" app='$2' echo "Three parameters $app" fi pid=`ps -ef|grep java|grep $app|awk '{print $2}'` echo $pid

编译环境 yum -y install gcc gcc-c++ make wget autoconf perl-Time-HiRes yum install zlib libxml libjpeg freetype libpng gd curl libiconv zlib-devel libxml2-devel libjpeg-devel freetype-devel libpng-devel g...

表查询 内联接 SELECT * FROM m INNER JOIN n ON m.id = n.id; 左外联接 SELECT * FROM m LEFT JOIN n ON m.id = n.id; 右外联接 SELECT * FROM m RIGHT JOIN n ON m.id = n.id; 交叉联接 SELECT * FROM m CROSS JOIN n; # 标准写法...

/** * 跨Oracle、MySQL通用分页查询 / public class PagingUtil { public static final String MYSQL = “MYSQL”; public static final String ORACLE = “ORACLE”; private static Logger logger = Logger.getLogger(Paging...

SQL整理 /* mysql */ #对库的操作 -- 创建数据库 create database databa character set utf8 collate utf8_general_ci; show databases; – 查看所有数据库 show create database databa; – 查看指定数据库 alter database d...