-Dr. Paul Dorsey, President, Dulcian, Inc., Oracle Magazine PL/SQL Developer of the Year 2007, and President Emeritus, New York Oracle Users Group "This is a fascinating guide into the world of Oracle SQL with an abundance of well-collected... (展开全部) 我来说两句 短评 ··· 热门...
Oracle PL/SQL实例精解 对于初学ORACLE来说,这的确是本很不错的书。 入门比较简单,从最基本的讲起,关键此书,不像图灵的那些讲很多,似乎看起来很简单,但真正动手的时候却发现困难重重。 书中的练习是值得好好做的。从最基本的东西开始练习,慢慢明白其中的奥妙。 一本不可多得的ORACLE的入门级图... (展开) ...
but not after parameters specified by keywords.For example,'sqlldr scott/tiger control=foo logfile=log'is allowed,but'sqlldr scott/tiger control=foo log'is not,even though the positionofthe parameter'log'is correct. SQL*Loader 控制文件 SQL*Loader 要将数据加载到 Oracle 数据库中,SQL*Loader 控制...
SQL> Example 2-51 Simple CASE Expression with WHEN NULL 代码语言:javascript 代码运行次数:0 运行 AI代码解释 DECLAREgradeCHAR(1);--NULLbydefaultappraisalVARCHAR2(20);BEGINappraisal:=CASEgradeWHENNULLTHEN'No grade assigned'WHEN'A'THEN'Excellent'WHEN'B'THEN'Very Good'WHEN'C'THEN'Good'WHEN'D'...
Oracle 中的sql函数以及分页 SELECT LPAD('Page 1',15,'*.')"LPAD example"FROM DUAL; 1.分页查询 (1)方法一:使用 between and 来实现分页 select*from(selectemp.*,rownum rnfromemp )wherern between4and6 (2)方法二:使用 rownum 来实现分页
)ORDERBYname;Code language:SQL (Structured Query Language)(sql) In this tutorial, you have learned about the Oracle correlated subquery. Now, you should understand how the correlated subqueries work and know how to apply them effectively to query data....
/* code returned by the OCI calls */ /* Dequeue by correlation and msgid */ /* Connect to the database: */ EXEC SQL CONNECT :user; EXEC SQL WHENEVER SQLERROR DO sql_error("Oracle Error :"); /* Allocate space in the object cache for the host variable: */ EXEC SQL ALLOCATE :mes...
然后hr用户用sql developer去连接,几个参数为 hr:qwe123:ip:port:sid(orcl)就成功了 alter user hr account lock 锁定账户 alter user hr password expire 密码过期 alter user hr identified by zxcasd 修改密码 select distinct user_password from user_info; 过滤出user_password这一列,并去除重复行(加distin...
SDK for PL/SQL Command-line interface (CLI) Developer Events and Webinars - replays Explore Oracle Developer event replays and recent webinars, hosted by technical experts. Learn moreabout developer events and webinars - replays Developer events ...
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