warehouse objective

Objective-c kvc automatic conversion type research, objective-ckvc# Objective-c kvc automatic conversion type Apple is very kind. During the time of kvc, we made some type conversions and posted the rules for your reference. @ Interface Entity: NSObject @ property (nonatomic, copy) NSString * str; @ property (nonatomic, assign) int i1; @ property (nonatomic, as

The elegant name of Objective-C, the name of objective-c There are only two hard things in Computer Science: cache invalidation and naming things.There are only two difficulties in Computer Science: cache invalidation and naming.-Phil Karlton Computer Language is a medium for communication between people and computers. Good code should be as natural and elegant as people speak to computers. Naming seems to

-makingStorage is called Data Warehouse (DW ).W. H. Inmon defines data warehouse as a topic-oriented and integrated data warehouse that supports management decision-making processes..A topic is the standard for data classification. Each topic corresponds to an objective analysis field, such as a customer or store.Assis

table, and the query first accesses the fact table and then the connection to the dimension table. The results returned on the fact table will be reduced rather than Cartesian product operations on all possible dimension table attributes, so they are extremely effective.Using Bitmap indexesHow to use bitmap indexes reasonably. Here are a few things to consider.* If you want to use a bitmap index, the initialization parameter star_transformation_enabled should be set toTRUE.* The optimization mo

The following content is taken from the Internet and sorted out.Terms:BI (Business Intelligence): Business Intelligence,DW (Data Warehouse): Data Warehouse. For details, see section Q1.OLTP (On-Line Transaction Processing): online Transaction ProcessingIt is also known as a transaction-oriented processing system. Its basic feature is that the customer's raw data can be immediately transmitted to the com

[Conclusion] Objective java experiences, creating and destroying objects, and using objective java Reprinted please indicate the source: http://blog.csdn.NET/supera_li/article/details/44940277 I have some summative thoughts on objective Java. The length may not follow the directory, because you can directly read which chapter you like to read first. However, it i

Gnustep First, there is no objective-c ide in windows. objectiveeclipse is an optional plug-in that works with eclipse3.5 + cdt6.0, but the update has stopped. Gnustep is an API and tool similar to cocoa (Apple OS Development Framework). It currently supports GNU/Linux and GNU/Hurd, Solaris, NetBSD, OpenBSD, FreeBSD, Darwin, and windows, free to use. This project enables Objective C to be developed and run

Objective-C Inheritance, objective-c One of the most important concepts in object-oriented programming is that of inheritance. inheritance allows us to define a class in terms of another class which makes it easier to create and maintain an application. this also provides an opportunity to reuse the code functionality and fast implementation time. When creating a class, instead of writing completely new dat

Objective-C: The Path to Swift mixing, objective-cswift This article is based on Xcode 6.4 and Swift 1.2. Important Materials Using Swift with Cocoa and Objective-C official documentationWhy do we need to mix data? Language Development Trends, Swift rankings continue to rise, and OC rankings are declining by gravity Normal project iteration needs Man

Objective-C data type, data type conversion, objective-c Data Type Data Type 1. Objective-C data types can be divided into basic data types, object data types, and id types. 2. Basic data types: int, float, double, and char. 3. The object type is the pointer type declared by the class or protocol, for example: The nyothoreleasepool * pool, where the nyothorelease

Objective-C basics: Basic knowledge of Object-Oriented Programming (OOP) (1) -- indirect, objective-coop Since Cocoa is based on the concept of OOP and Objective-C is also an object-oriented programming language, it is necessary to frequently discuss the concept of OOP when learning Objective-C. 0x01 what is indirect?

How to Write Objective-C language elegantly ?, Compile objective-c① Reduce abbreviations The abbreviation is used only for general technical terms, suchURLYou cannot create your own name abbreviations, suchCtr,Msg. The name should be longer than hard to understand.② Procedural Used before an action occursWill, Used after occurrenceDidTo check whether the application is used.Should. Each processing process h

Objective-C (iOS) is strictly implemented in the singleton mode. objective-cios Note: the ownership of this article is owned by the author. For more information, see the source. If you want to have only one class object in an application, you can use the singleton mode, the Singleton mode is easier to implement in C ++ (you only need to declare the constructor as private), while in

Objective-C learning 01-class declaration and implementation, objective-c01 Objective-C is a programming language invented by Brad Cox in early 1980. It is the same as C ++ in its generation, all of them are extended by adding object-oriented features on the basis of C. Objective-C supports Object Oriented Programming.

Objective-c Basic Framework (beginner-Summary) and objective-c framework A framework is actually a software package that contains multiple classes. The Mac operating system provides dozens of frameworks to help developers quickly develop applications on Mac systems. These include some basic frameworks that provide the basic framework for all program development. Several common classes include: string (NSStr

Objective-C magic path [5-select structure], objective-c5- Master haomeng is devoted to his contribution and respects the author's Labor achievements. Do not repost them. If the article is helpful to you, you are welcome to donate to the author, support haomeng master, the amount of donation is free, focusing on your mind ^_^ I want to donate: Click to donate Cocos2d-X source code download: point I sen

In my previous objective-C call C ++ code, I used a very stupid method to implement simple, small objective-C call C/C ++CodeIn this example, when I learned objective-C serialization and deserialization on the Internet today, I accidentally met a good solution: IOS developed a method to get the local IP address, this demo can obtain the IP address of the Internet

Directory Objective Principle Content Summary Preface The previous article described the business Modeling and domain concept modeling in the Data warehouse model design, and then came naturally to the phase of the logical Data Modeling LDM (Logical data Model), which is one of the most important aspects of modeling (that is, dimensional modeling). Logical model

Data Warehouse and data mining--a sharp weapon to participate in the competition of digital telecommunication enterprises The solution of Guangdong Telecom Data Warehouse based on Sybase Guangdong Institute of Telecommunication Science and technology 1 overview With the opening of the telecom market, the competition will be more and more fierce. The reduction of profit makes it necessary to change from e

Objective Modern C ++ Reading Notes Item 1 Understanding template type derivation, objective tivemodernc Recently, I found the book "objective Modern C ++". The author is Scott Meyers, the famous C ++ and STL. Just as C ++ 11 gradually became popular, and even the new features of C ++ 14 came into the eyes of everyone, the book "impulsive Modern C ++" came into b