Titlebook: Oracle Database Principles; Z. M. Sikora Textbook 1997Latest edition Macmillan Publishers Limited 1997 database.database system.entity rel

Heresy

Distributed Databases,puter network. The distribution of data distinguishes a DDB from purely distributed processing systems, such as client-server systems described in chapter 1, though of course a DDB also involves distributed processing. The computer network can be a slow speed (relative to disk UO) wide area network

Cabinet

THROB

abject

繁荣地区

PL/SQL,that is operations are performed on one or more tables and the result is a table. This gives SQL its nonprocedural flavour and is one of its major strengths. However, there are occasions when procedural processing of data may be required; in particular, we may wish to process data on a row by row basis.

aspersion

Indexes and Storage Structure,etrieval operations on a database. In the section on storage structures we see how Oracle stores data on the disk (or other physical device). We will see however that a trade-off between effective storage utilisation and processing speed has to be made,. and like much of Oracle this area is tuneable.

铁塔等

SQL*Forms, forms based, so the application can be defined by selecting options from menus and tables. One feature of SQL*Forms is a screen painter which by the use of function keys enables one to define headings and fields that make up the form in question.

Forage饲料

Lime石灰

贪心