oracle安装包中含透明网关吗

We often talk about ourselves as if we have permanent genetic defects(缺陷) that can never be changed. “I’m impatient.” “I’m always behind.” “I always put things !” You’ve surely heard them. Maybe you’ve used them to describe .
These comments may come from stories about us that have been for years—often from childhood. These stories may have no in fact. But they can set low expectations for us. As a child, my mother said to me, “Marshall, you have no mechanical （操作机械的） skills, and you will never have any mechanical skills for the rest of your life. ” How did these expectations my development? I was never to work on cars or be around . When I was 18, I took the US Army’s Mechanical Aptitude Test. My scores were in the bottom for the entire nation!
Six years later, , I was at California University, working on my doctor’s degree. One of my professors, Dr. Bob Tannbaum, asked me to write down things I did well and things I couldn’t do. For my strong points, I down, “research, writing, analysis, and speaking. ” For the , I wrote, “I have no mechanical skills. ”
Bob asked me how I knew I had no mechanical skills. I explained my life and told him about my performance on the Army test. Bob then asked, “ is it that you can solve mathematical problems, but you can’t solve easy mechanical problems?”
Suddenly I realized that I didn’t from some sort of genetic defect. I was just living out expectations that I had chosen to . At that point, it wasn’t just my family and friends who had been my belief that I was mechanically hopeless. And it wasn’t just the Army test, either. I was the one who kept telling myself, “You can’t do this!” I realized that as long as I kept saying that, it was going to remain true. , if we don’t treat ourselves as if we have genetic defects that we can never get over, we can do well in almost we choose.
【小题1】A．away B．offC．up D．down【小题2】A．themB．myselfC．yourselfD．others【小题3】A．saidB．spokenC．spreadD．repeated【小题4】A．as long asB．as far back asC．as well asD．as much as【小题5】A．evidenceB．wisdomC．causeD．meaning【小题6】A．leadB．improveC．affectD．change【小题7】A．encouragedB．demandedC．hopedD．agreed【小题8】A．meansB．toolsC．facilitiesD．hammers【小题9】A．thereforeB．somehowC．insteadD．however【小题10】A．settledB．turnedC．tookD．got【小题11】A．shortB．otherC．weakD．latter【小题12】A．experiencesB．tripsC．roadsD．paths【小题13】A．unexpectedB．poorC．excellentD．average【小题14】A．WhenB．WhatC．HowD．Why【小题15】A．challengingB．advancedC．common D．normal【小题16】A．handleB．separateC．sufferD．come【小题17】A．believeB．doubtC．adoptD．receive【小题18】A．weakeningB．strengtheningC．questioningD．accepting【小题19】A．As a resultB．At the same timeC．In additionD．Instead【小题20】A．everything B．somethingC．nothingD．noneB

(答案→)B 解析：本文通过作者自己的故事告诉我们，做任何事情要有自信，如果我们自己不认为自己有基因的缺陷，我们就能做好我们所选择的任何事情。【小题1】 B。固定搭配.put off推迟，延误；put up搭建，留宿；put down写下，记下；put away根据上文可以看出我总是推迟事情。【小题2】C。A他们B我自己C你自己D其他人；句意为：可能你常用上面的情况来描述你自己。根据句意，选C。 【小题3】D。根据for many years 可以知道“这种评论来源的故事已经重复多年了。”从后文也可知道我反复说自己“You can’t do this！”久而成真。【小题4】B。A只要C和，同，也，并；D多达；这种评论已经许多年了，而且可以追溯到儿童时代。as far back as 早在，远在。 【小题5】A。名词辨析。A证据B智慧C原因D意义；根据后文可知,“这些故事实际上是没有依据的”。【小题6】C。动词辨析。A带领B提高，改善C影响D改变；从后文的考试成绩最差可以知道母亲的话对我的发展影响有多大。 【小题7】 A。动词辨析。A鼓励B要求C希望D同意从来没有人鼓励我从事汽车工具类事情。【小题8】 B。名词辨析。A方法B工具，技能C设备D锤子；根据前文的机械类的技能可以知道这里应选B。 【小题9】D。虽然我的考试成绩很差，六年后我还是上大学了。由上下文可以看出是转折关系。 【小题10】C。动词短语辨析。Take down写下，记下。根据后面write 可以知道前面是take down 写下的意思。【小题11】 C。形容词辨析。A短的B其他的C虚弱的，消极的D较晚的；与前面positive 形成对比所以选C。【小题12】A。名词辨析。A经历B旅行C道路D通道；我向老师解释我的经历。【小题13】B。告诉老师我的经历和糟糕的考试成绩。前文提到自己的考试成绩很差，所以选B。 【小题14】 D。上下文串联。根据ask 一词可以判断用why。【小题15】 A。形容词辨析。A有挑战性的B先进的C普通的D正常的。从后面simple一词可以知道此处应是“复杂的”的意思。【小题16】 C。suffer from遭受……之苦，患……病。其它短语均不符合句意。【小题17】A。语境理解,从前面老师说我能解决复杂的数学题，而不能解决简单的机械类问题，所以我意识到我没有这方面的遗传缺陷，而我仅仅实现了我所选择的我相信的期望。【小题18】 B。作者明白了不是家人和朋友强化了我相信自己在机械方面无望，而是我自己的反复认为自己不行。 【小题19】D。上下文串联。与前文形成对比。相反，如果我们自己不认为自己有基因的缺陷，我们就能做好我们所选择的任何事情。【小题20】A。词义辨析。A所有事情B一些事情C没有事情D一个也没有。相反，如果我们自己不认为自己有基因的缺陷，我们就能做好我们所选择的任何事情。

我好好复习下

当在Oracle 环境下通过透明网关建立一个对SQL Server 的连接时，要用到如下的语句， 1 Create database link test connect to user identified by password using 'TG4MSQL'； 在上面的语句里user 和 password是SQL Server 合法的用户登录名和密码，TG4MSQL则是Oracle Server端的TNS_NAMES 文件里已经配置好的服务名，服务器在处理上面的语句时会通过这个服务名 （TG4SMQL）访问透明网关所在的代理机器（因为透明网关可以安装在Server端，所以可能就是本地服务名）。接下来，透明网关所在的代理机器通过监听器接收到Oracle Server端的连接请求，运行程序tg4msql.exe实现到SQL Server的访问。 主机 操作系统 软件环境 ORADB Windows 2000 Professional Oracle 9.0.2 Database Standard Edition GATEWAY Windows 2000 Professional Oracle 9.0.2 Database Standard Edition SQLDB Windows 2000 Server SQL Server (访问的数据库 Billy_Test) 在这里需要先说明几点： 1、安装Transparent Gateway 必须先安装Oracle Database，单纯的客户端是没有Transparent Gateway的。 2、Transparent Gateway for Microsoft SQL Server目前只有NT版本，因此网关程序tg4msql仅包含在Oracle Database for windows中。 3、上面已经说过，透明网关可以安装在独立的机器上或者Oracle Server 和 非Oracle Server 端，在这里我采用的方法是Oracle Server，SQL Server， 透明网关分别在不同的机器上。 现在从SQLDB开始： 在SQLDB上创建将要从Oracle数据库访问SQL Server的用户user/password，并授予可访问Billy_test的权限； 接下来是GATEWAY： 1．安装好Oracle 9.0.2 Database for Windows后，会发现在%ORACLE_HOME%下有目录tg4msql，以及网关程序$ORACLE_HOMEBINtg4msql； 2． 修改%ORACLE_HOME%tg4msqlinittg4msql.ora,这是网关进程启动时需要的初始化文件。只需改下面这一行即可： HS_FDS_CONNECT_INFO=SQLDB.CDR 3．修改%ORACLE_HOME%networkadminlistener.ora如下： LISTENER = (ADDRESS_LIST= (ADDRESS=(PROTOCOL=tcp)(HOST=localhost)(PORT=1521)) ) SID_LIST_LISTENER= (SID_LIST= (SID_DESC= (SID_NAME=tg4msql) (ORACLE_HOME=e:OracleOraHome_9I) #用你的%ORACLE_HOME% (PROGRAM=tg4msql) # 必须指向‘tg4msql’ ) ) 4. 重启透明网关的监听器。 最后是ORADB： 1．修改tnsnames.ora TG4MSQL = (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP) (HOST= GATEWAY) #透明网关所在机器地址 (PORT = 1521) ) (CONNECT_DATA = (SID = tg4msql) #tg4msql必须要和GATEWAY上listener.ora中的SID一致 ) (HS = OK) #这很重要，告诉Oracle Server要调用异构服务模块来处理 ) 2．修改initora9i.ora(数据库初始化文件) global_names=true，重启数据库。 否则会在执行sql时报错：ORA-02085: 数据库链接CDR与HO.WORLD相连结 原因如下：The GLOBAL_NAMES parameter when set to TRUE implies that database link name should be similar to the Global database name to which you are trying to connect. 3．创建访问SQLDB.CDR的数据库链接 SQL>create public database link test connect to user identified by password using ‘TG4MSQL’; 4．最后执行SQL测试看是否能正常访问SQL Server SQL>select sysdate from dual@Billy_test;

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