sql问题txt

[20150611]优化sql遇到问题.txt

[20150611]优化sql遇到问题.txt-昨天在...主要问题是要调整的sql语句太长，自己没有仔细看出错提示，浪费了大量时间，以此做一个记录，说明在PB程序里面有空行是没有问-题，自己在调整sql时注意。另外还有注意的一个问题是回车换行的问题。...

[20120216]查看数据库整体性能问题sql语句.txt

Formatted on 2012/02/16 09:45(Formatter Plus v4.8.8)*/column value ...通过查看awr很难看出seq有问题。1007787756/642840811248=.001567709669 占用0.1%,不算很多。检查发现一些seqence确实设置太小(设置都是100)。过几天再观察看看。

[20150304]关于sql格式化问题.txt

[20150304]关于sql格式化问题.txt-今天看书学习了sql格式化技巧。我以前遇到的sql语句很长，喜欢抽取在toad下格式化。一般格式化成如下。SELECT empno,ename,job,mgr,hiredate,sal,comm,deptno FROM emp WHERE hiredate=TO_DATE(:b1,'yyyy-...

[20140116]视图?隐式转换?sql优化问题.txt

sql优化问题.txt 最近一直在优化单位的垃圾数据库,这个数据库可以讲是一个垃圾工程.在有优化的过程遇到视图中存在隐式转化问题,在我的测试环境模拟出来,提出解决方案:1.建立测试环境:SCOTT@test>@ver BANNER-Oracle Database 11g ...

[20150705]从AWR抽取有问题的sql语句.txt

[20150705]从AWR抽取有问题的sql语句.txt-闲着没事,写一个脚本从awr数据里面抽取有问题的sql语句,主要我不想看awr报表,而优化80%的问题集中在sql语句,实际上可能更多.-另外我看报表主要集中在9-11点,下午3-5点这些报表,这样可能漏调一些...

[20120606]sql中的注解问题.txt

SQL>select*from v$version;BANNER-Oracle Database 11g Enterprise Edition Release 11.2.0.1.0-64bit ProductionPL/SQL Release 11.2.0.1.0-ProductionCORE 11.2.0.1.0 ProductionTNS for Linux:Version 11.2.0.1.0-ProductionNLSRTL ...

[20130628]sql语句显示不全的问题.txt

[20130628]sql语句显示不全的问题.txt 今天在优化一条sql语句的时候遇到一个怪问题，sql语句显示有问题，仔细查看才想起来以前看itpub的一本书上讲过，老杨遇到的问题，语句里面仅仅含有0d（十六进制）编码，自己为了加深印象，做一个测试...

[20120229]无效sql语句与shared pool的问题.txt

SQL>column aa format a76 SQL>select sql_id,substr(sql_text,1,76)aa,users_opening,open_versions,users_executing from v$sql where sql_id='fv0w0c06d6jsa';SQL_ID AA USERS_OPENING OPEN_VERSIONS USERS_EXECUTING-fv0w0c06d6jsa ...

[20160910]sqlldr使用问题.txt

[20160910]sqlldr使用问题.txt http://www.itpub.net/thread-2067126-1-1.html CREATE TABLE "SCOTT"."ASSIGNBLOCKS" ("AB_WOID"VARCHAR2(20),"AB_TYPE"VARCHAR2(20),"AB_START"VARCHAR2(20),"AB_END"VARCHAR2(20),"AB_DATETIME"DATE);...

[20160113]sqlplus使用问题.txt

[20160113]sqlplus使用问题.txt-在linux中使用sqlplus我自己经常遇到奇怪的问题,打入的命令无法执行,自己老是不知道什么回事,今天发现其中一个原因.-通过例子来说明:1.环境:SCOTT@book>@r/ver1 PORT_STRING VERSION BANNER-x86_64/Linux ...

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云数据库RDS SQL Server版

云数据库SQL Server，具有企业许可授权，权限更为开放，引擎功能更为强大。能完美支持Windows平台的.NET架构，支持复杂SQL查询，性能优秀，并有强大的可视化管理工具，帮助您轻松管理数据。

产品详情

管理控制台

在线咨询