问题:有一张表hy_test,查找其字段name中包含ufo的记录数,下面哪种方案最快? A.select count(*) from hy_test where name like '%ufo%' B.select count(*) from hy_test where instr(name,'ufo')> 0 C.with temp as (select rowid from hy_test t where t.name like '%ufo%') select count(*) from…

In this Document   Abstract   History   Details   Previous Releases   Release 12   Multi-Org Session Context   Backwards Compatibility Applies to: Oracle Project Foundation - Version 12.0.0 to 12.1.3 [Release 12.0 to 12.1] Information in this documen…

select       distinct b.lvl                                                      层次, b.OPERATION_SEQ_NUM                        工序, msi1.segment1                                 父件编码, msi1.description                                父件描述, msi1.item_ty…

Oracle EBS R12 (12.1.3) Installation Linux(64 bit) Contents Objective. 3 1 Download & Unzip. 3 Download. 3 Unzip. 3 MD5 Checksums. 4 2 Pre-Install Task. 5 Disk Space. 5 Specific Software Requirements. 5 RPM... 6 JDK. 8 OS User & Group. 11 3 Instal…

Oracle EBS中分类账和法人实体 的关系(有sql语句实例) 2012-12-06 16:05 2822人阅读 评论(0) 收藏 举报  分类: Oracle EBS(12)  Oracle数据库技术(6)  版权声明:本文为博主原创文章,未经博主允许不得转载. 首先,对于EBS中的法人实体和分类账以及OU之间的一个层次关系如下图: 其中,对于分类账和法人实体,并不简单是一对多的关系,按照理论上来讲:由于分类账存在辅助分类账,所以一个法人实体除了对应一个主分类账(Primary Ledge…

Back in May, Oracle announced the general availability of Oracle VM Virtual Appliance for E-Business Suite 12.2.6 for download from the Oracle Software Delivery Cloud. In this series of Blog posts I will detail how you can build an Oracle EBS 12.2.6…

假设当前是第PageNo页,每页有PageSize条记录,现在分别用Mysql.Oracle和SQL Server分页查询student表. 1.Mysql的分页查询: SELECT * FROM student LIMIT (PageNo ) * PageSize,PageSize; 理解:(Limit n,m)  =>从第n行开始取m条记录,n从0开始算. 2.Oracel的分页查询: SELECT * FROM ( SELECT ROWNUM rn ,* FROM student WHER…

Oracle EBS DBA常用SQL - 安装/补丁 检查应用补丁有没有安装:select bug_number,last_update_date from ad_bugs where bug_number='&bug_num'; 检查安装了哪些语言:select nls_language,language_code,installed_flag from fnd_languages where installed_flag in ('I','B'); 检查应用有没有安装:SELECT SUB…

Oracle执行SQL查询语句的步骤 如果用户在SQL*Plus下输入了如下查询语句:SELECT * FROM dept: 查询语句的处理主要包括三个过程:编译(parse).执行(execute)和提取数据(fetch). l 编译:在进行编译时,服务器进程将会将SQL语句的正文放入共享池(shared pool)的库高速缓存(library cache)中并将完成以下处理. 首先在共享池中搜索是否有相同的SQL语句(正文),如果没有就进行后续的处理. 检查该SQL语句的语法是否正确. 通过…

oracle的sql语句中没有limit,limit是mysql中特有的,在oracle中可用rownum来表示,用于查询结果中的前N行数据. 如要查询emp表中的前5行数据,可用如下语句: select * from (select a.*,rownum rn from (select * from test t order by t.id desc) a ) b where b.rn between 1 and 3…