二、安装配置 1、解压apache-tomcat-7.0.39-windows-x64,版本:tomcat7 for windows 64位,配置环境变量JAVA_HOME,值为tomcat安装目录,并将%JAVA_HOME%/bin加到系统变量path下; 2、安装jdk-7u17-windows-x64,版本:jdk7 for windows 64位,配置环境变量TOMCAT_HOME,值为jdk安装目录,并把%TOMCAT_HOME%/bin并加到path下; 注:JDK和Jre要安装在
oracl 和db2 常用语法比较: 1、取前N条记录 Oracle:Select * from TableName where rownum <= N; DB2:Select * from TableName fetch first N rows only; 2、取得系统日期 Oracle:Select sysdate from dual; DB2:Select current timestamp from sysibm.sysdummy1; 3、空值转换 Oracle:Select