安装与配置Oracle Warehouse Builder 11.2.0.3
The OWB Client (which includes the Design Center and the Control Center Manager)
The OWB Browser
Control Center Service
Control Center Agent
The Repository
Oracle database 11g release 2 包含了owb的所有组件。
根据业务需要,OWB提供了五种拓扑安装
1.单机拓扑
2.客户端和数据库服务分离拓扑
3.多数据库拓扑
4.客户端、控制中心服务、数据库服务分离拓扑
5.控制中心代理拓扑
单机拓扑
OWB所有的组件都运行在单台计算机上。
客户端、服务分离拓扑(客户端推荐安装owb11.2 独立版安装版)
多数据库拓扑
Client、CCS、Server分离拓扑
CCA拓扑
本次安装配置以客户端服务端拓扑为了。
一、在windows上安装客户端。
到官网上下载安装包OWB_11.2.0.3_Windows_x86-64.zip,将其解压。如下
点击setup.bat批处理文件
点击下一步
选择owb的home目录及产品名称,点击下一步
取消“我希望通过My Oracle Support接收安全更新”的选择,点击下一步。
点击“是”按钮
点击安装按钮
至此,安装完毕,点击退出按钮。

ACID attributes include atomicity, consistency, isolation and durability, and are the cornerstone of database design. 1. Atomicity ensures that the transaction is either completely successful or completely failed. 2. Consistency ensures that the database remains consistent before and after a transaction. 3. Isolation ensures that transactions do not interfere with each other. 4. Persistence ensures that data is permanently saved after transaction submission.

MySQL is not only a database management system (DBMS) but also closely related to programming languages. 1) As a DBMS, MySQL is used to store, organize and retrieve data, and optimizing indexes can improve query performance. 2) Combining SQL with programming languages, embedded in Python, using ORM tools such as SQLAlchemy can simplify operations. 3) Performance optimization includes indexing, querying, caching, library and table division and transaction management.

MySQL uses SQL commands to manage data. 1. Basic commands include SELECT, INSERT, UPDATE and DELETE. 2. Advanced usage involves JOIN, subquery and aggregate functions. 3. Common errors include syntax, logic and performance issues. 4. Optimization tips include using indexes, avoiding SELECT* and using LIMIT.

MySQL is an efficient relational database management system suitable for storing and managing data. Its advantages include high-performance queries, flexible transaction processing and rich data types. In practical applications, MySQL is often used in e-commerce platforms, social networks and content management systems, but attention should be paid to performance optimization, data security and scalability.

The relationship between SQL and MySQL is the relationship between standard languages and specific implementations. 1.SQL is a standard language used to manage and operate relational databases, allowing data addition, deletion, modification and query. 2.MySQL is a specific database management system that uses SQL as its operating language and provides efficient data storage and management.

InnoDB uses redologs and undologs to ensure data consistency and reliability. 1.redologs record data page modification to ensure crash recovery and transaction persistence. 2.undologs records the original data value and supports transaction rollback and MVCC.

Key metrics for EXPLAIN commands include type, key, rows, and Extra. 1) The type reflects the access type of the query. The higher the value, the higher the efficiency, such as const is better than ALL. 2) The key displays the index used, and NULL indicates no index. 3) rows estimates the number of scanned rows, affecting query performance. 4) Extra provides additional information, such as Usingfilesort prompts that it needs to be optimized.

Usingtemporary indicates that the need to create temporary tables in MySQL queries, which are commonly found in ORDERBY using DISTINCT, GROUPBY, or non-indexed columns. You can avoid the occurrence of indexes and rewrite queries and improve query performance. Specifically, when Usingtemporary appears in EXPLAIN output, it means that MySQL needs to create temporary tables to handle queries. This usually occurs when: 1) deduplication or grouping when using DISTINCT or GROUPBY; 2) sort when ORDERBY contains non-index columns; 3) use complex subquery or join operations. Optimization methods include: 1) ORDERBY and GROUPB


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