SQL> select sysdate from dual; SQL> select user from dual; SQL> desc dual; SQL> select * from dual; SQL> select lower('Hello, World') from dual; SQL> select upper('Hello, World') from dual; SQL> select initcap('hello, world') from dual; SQL> select ename, substr(ename, -3) ...
SQL Fundamentals: 子查询 || 分析函数(PARTITION BY,ORDER BY, WINDOWING) SQL Fundamentals: 子查询 || WHERE,HAVING,FROM,SELECT子句中使用子查询,WITH子句 SQL Fundamentals: 分组统计查询(FROM-WHERE-GROUPBY-HAVING-SELECT-ORDER BY) SQL Fundamentals || Single-Row Functions || 转换函数 Conversion function ...
第一章. 编写 SQL SELECT 语句 第二章. 对数据进行限制和排序 第三章. 使用单行函数自定义输出 第四章. 使用组函数报告汇总数据 第五章. 显示多个表中的数据 第六章. 使用子查询来解析查询 第七章. 使用 SET运算符 第八章. 处理数据 第九章. 使用DDL语句创建和管理表 第十章. 管理方案对象 第十一章....
Oracle MOOC: SQL Fundamentals Week 2 Homework for Lesson 2 Homework is your chance to put what you've learned in this lesson into practice. This homework is not "graded" and you are encouraged to write additional code beyond what is asked. Note: Ensure you completed the setup ...
19c Active Data Guard Fundamentals on DBCS Workshop Setting Up Active Data Guard For On-Premises Workshop Oracle Application Continuity Application Continuity (AC) is a feature available with Oracle RAC, Oracle RAC One Node, and Oracle Active Data Guard options that mask outages from end users ...
这需要创建静态 IP 路由以在每个 SQL Server 节点 VM 中公开 iSCSI 目标门户。此类配置超出了本教程的范围。有关更多信息,请参见 Failover Clustering Networking Basics and Fundamentals。 Oracle Cloud Infrastructure Identity and Access Management (OCI IAM) 策略:本教程假定您配置了 OCI IAM 策略,以便为您提供...
CoveringSQLDeveloperfundamentalsaswellmoreintermediateandadvancedtopics,thisbookusesin-depthexplanationanddetailedexamplestohelpyougetthemostoutofOracleSQLDeveloper.Thebookhasamodularstructure,sothatyoucandipintoanychapterthatcoversyourcurrentareaoffocusandgetgoing.ThisbookisforOracledeveloperswhowanttoeasetheirdatabase...
Oracle PL/SQL Programming Fundamentals LiveLessons (Video Training), Downloadable VersionDan Hotka
SQL Statement Results SAVEPOINT a; First savepoint of this transaction DELETE...; First DML statement of this transaction SAVEPOINT b; Second savepoint of this transaction INSERT INTO...; Second DML statement of this transaction SAVEPOINT c; Third savepoint of this transaction UPDATE...; ...
先说Oracle 11g OCP 认证考试,这个认证在去年底(即19年12 月底)已经停考了,也是先要考完 OCA才可以考 OCP。11g OCP考试需要考三门: 第一门主要考察SQL语句--071:OracleDatabase 11g: SQL Fundamentals I 使用选择题方式考察,共 70 道题,120 分钟做完,通过正确率为 60% ...