oracle initialize collection

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

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

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

  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

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

1. Statistical Information view1.1 Global statistics for individual tables, viewing of statistical effects2. Statistical information Analysis (collection)2.1 Analysis Tool Selection2.2 To do index reconstruction before analysis2.3 Analyze a data

The interviewer asked me about Oracle's architecture a few days ago, and let me draw it on a blank sheet of paper. Looking back at that time answer is also good, most of the content is described, hehe, just saw an article on the internet to explain

1. Oracle memory is composed of SGA+PGA2. Oracle Database ArchitectureDatabase architecture refers to the composition, working process and principle of database, and the organization and management mechanism of data in database.How Oracle Works:1),

1. Oracle memory is composed of SGA+PGA2. Oracle Database ArchitectureDatabase architecture refers to the composition, working process and principle of database, and the organization and management mechanism of data in database.How Oracle Works:1),

Content Define Collection type Declare Collection variables Initialize and reference Collection Reference Collection Element Assign a value to Collection Multi-dimensional Collection Compare Collection Collection Method Collection