摘要:
热站(hot site)是一种商业灾难恢复服务,用于当计算机或设备突然瘫痪时通过恢复工作支持计算机和网络操作的正常运行。比如,如果公司的数据处理中心突然失灵,那么可以将所有的操作转移到热站上。热站包含企业继续运行所需的所有设备,包括办公空间和家具、电话插座设备和计算机设备。冷站(cold site)... 阅读全文
摘要:
what isPartition Table?Looking to optimize the performance of your SQL Server database? If your database contains very large tables, you may benefit f... 阅读全文
摘要:
数据库schema与catalog简介 按照SQL标准的解释,在SQL环境下Catalog和Schema都属于抽象概念,可以把它们理解为一个容器或者数据库对象命名空间中的一个层次,主要 用来解决命名冲突问题。从概念上说,一个数据库系统包含多个Catalog,每个Catalog又包含多个Schema... 阅读全文
摘要:
Host variables are data items declared in a host application program and used in bothhost language statements and embedded SQL statements. They provid... 阅读全文
摘要:
大学课本复习笔记,知识点总结。2012-08-15数据模型中的 型,Type, 学号,姓名。。。。 值,Value, 0001, Ender。。。。。数据库系统的三级模式,两级映射,外模式,External Schema/Sub Schema,是用户能看得到的直接使用的。一个数据库有多个外模式,应用... 阅读全文
摘要:
Publis/Subscribe function in COBOL>> Embeded Delete1. Use table SOS.ECUI.ORDERS.INSERT INTO ORDERS(ORDER_NBR,AMOUNT) VALUES(1,1111);INSERT INTO ORDERS... 阅读全文
摘要:
What Is Publish/Subscribe?Traditionally, relational database systems are passive data stores. Applications canonly retrieve and update data. Applicati... 阅读全文
摘要:
JDBC Install for OSS1. The default JDBC/MX driver installation directory laction is /usr/tandem/jdbcMx/T1275h50.include:/demo //Demo programs./lib/lib... 阅读全文
摘要:
In this note, you will know how to access the MX table by SPJ(Stored Procedure in Java)1. Java class for stored procedure,import java.sql.*;import jav... 阅读全文
摘要:
Stored Procedure in Java (SPJ)HP Nonstop SQLMX, we can code Java program and regist it as a DB Stored Procedure, and then calling it. SPJ is astored p... 阅读全文