简单嵌套循环连接(Simple Nested-Loop Join Algorithm) 对于进行嵌套循环连接的两个表,可以分别称为外部表(驱动表)和内部表。 进行简单嵌套循环连接(Simple Nested-Loop Join Algorithm)时候,会读取外部表(驱动表)中的一条记录,然后根据连接条件扫描内部表,反复循环,直到遍历完驱动表所有满足谓词条件的记录。 例:对于...
1z0-908 考试是针对 Oracle Database 12c 的认证考试,主要测试考生对 Oracle Database 12c 的理解和实际操作能力。考试分为选择题和操作题两部分,内容涵盖 Oracle Database 12c 的特性、安装与配置、管理工具、SQL 基础与高级特性、数据库安全性和备份与恢复等方面。 Oracle Database 12c 是 Oracle 公司推出的一款...
Oracle 1Z0-908 考試大綱: 主題簡介 主題1 Identify the files and folders created during installation Understand and use the Data Dictionary 主題2 Monitor database growth and explain capacity planning Examine how MySQL optimizes queries 主題3
1z0-908 考试内容1Z0-908考试内容主要涵盖了Oracle Database 12c的相关知识,包括但不限于:Oracle Database 12c的安装和配置、系统管理、SQL基础和高级特性、数据库安全性和备份与恢复等。考试还涉及到了Oracle Grid Infrastructure for Hardware and Software and Oracle Enterprise Manager Cloud Control 12c等管理工具...
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几年前已经考过了MySQL 5.6和5.7的OCP,现在开始准备MYSQL 8 OCP 1Z0-908 的考试,网上直播我的备考笔记,考试大纲见: https://education.oracle.com/mysql-80-database-administrator/pexam_1Z0-908 5.7的通过分数线是58%,现在涨到62%,这种多项选择题要想全对还是有点难的。