oracle collection types

Before we introduce oracle9i, we'll introduce some information about Oracle, and let your friends know more about Oracle. In 1977, Larry Airison and Bob Miner and Ed Oates created a software development lab (Software Development Laboratories). The

Oracle basic concepts and comparison with informix I. ConceptsUser: informix directly uses the user management system of the operating system. Generally, root and informix are used as super operators to manage other users. Oracle has its own user

The racle database system is a complex software system. Without understanding its internal structure principles and relationships, it is impossible to design and Compile High-Quality application software systems or manage a complex application

Data Type In Java virtual machines, data types can be grouped into two categories: the base type and the reference type . A variable of the base type holds the original value, that is, the value that he represents is the number itself, and the

Reprinted: http://www.cnblogs.com/gkl0818/archive/2009/02/25/1397769.htmlOracle collectionsI. Types of Collections1. associative arrays ArrayIt is a one-dimensional, borderless sparse set of the same type and can only be used for PL/SQL.DeclareType

SQL queries and SQL functions　　This chapter aims　　　　Understanding Oracle Data TypesUnderstanding Data Definition Languages and data manipulation languagesUnderstanding Transaction Control Languages and Data Control languagesMastering SQL Operators

  I. Oracle case 1. Oracle instancesSystem global area (SGA) and background process are used as database instances. 2. Oracle DatabaseA collection of physical files (data files, control files, online logs, parameter files, etc) 3. system global area

Racle text translation is one of the key technologies of intelligent information Management, Oracle text as a component of Oracle9i provides a powerful Full-text search function, use oracle9i to do background database, can make full use of its

Oracle-based SQL Optimization MethodologyThe ultimate goal of SQL Optimization in Oracle databases is to shorten the execution time of target SQL statements. To achieve the above purpose, we usually have the following three methods to choose from:1.

Reference: http://www.zhetao.com/content240In real-world development applications, about Oracle databases, it is often heard that a database is created, a instance is created, and a instance is started.Actually ask them what is the database, what is