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DirectX is a collection of APIs for developing game or graphics-related applications on the Microsoft platform, including Windows,windows Phone,xbox 360, and Xbox one. DirectX from the 1990 's medium-term development so far, and is now in the forefront of graphic development. Direct3D is a set of 3D graphics APIs within DirectX, which is the main story of this book. DirectX also includes system support for

Tags: code images str har readiness work ref tle Insert Test table1. Summary descriptionThe table partitioning feature of SQL Server is to split a large table (with very many data in the table) into multiple files based on a condition (the table's primary key only) to improve efficiency when querying data. The main steps to create a table partition are 1, determine which field to use as the partition condition, 2, split into how many files to save the table, 3, partition function (split conditio

, some data that meets the query conditions may not be found,In count (*), use nvl (column name, 0) for processing and then query.7. Sorting is larger than other data (indexes are sorted in descending order by default, small → large ),Therefore, the NULL value is always at the end. Usage:SQL> select 1 from dual where null = null;No records foundSQL> select 1 from dual where null = '';No records foundSQL> select 1 from dual where ''= '';No records foundSQL> select 1 from dual where null is null;1

; Select 1 from dual where ' = ';No records found.Sql> Select 1 from dual where null is null;1---------1 Sql> Select 1 from dual where NVL (null,0) =NVL (null,0); 1---------1The null value is added, minus, multiply, divide, and so on, the result is still empty.Sql> select 1+null from dual;Sql> select 1-null from dual;Sql> select 1*null from dual;Sql> select 1/null from dual;Query to a record.Note: This record is the null in the SQL statementSet some column null valuesUPDATE table1 set column 1=n

, it has added some category libraries dedicated to game development to maximize code reuse on the specified platform. XNa framework runs on a Common Language Runtime version especially for managed games. This execution layer supports Windows XP, Windows Vista, and Xbox 360. Because the game is developed on the execution layer, the game can run on all platforms that support xNa framework with little or no changes required. Currently, all games on the

Original Author: nightmareSource: http://blog.csdn.net/nightmare/archive/2007/03/27/1542927.aspx The next version of xNa is expected to be released in April, but there are still many questions about the future of DX on. NET. With the freeze of mdx1.1, the expected mdx2/. NET 2.0 to mdx10/d3d10 roadmap has been annihilated with the cancellation of the mdx2 project. Apparently, Microsoft does not want MDX to take the lead in xNa, but xbox360 is the main feature of xNa. Mdx2 was relocated and trans

First, environmental installation1. Installing Hadoophttp://my.oschina.net/u/204498/blog/5197892. Install Spark3. Start Hadoop4. Start SparkTwo1. Data preparationDownload the data dev360data.zip from the MAPR website and upload it to the server.[[Emailprotected]spark-1.5.1-bin-hadoop2.6]$pwd/home/hadoop/spark-1.5.1-bin-hadoop2.6[[email protected]spark-1.5.1-bin-hadoop2.6]$cdtest-data/[[emailprotected] test-data]$pwd/home/hadoop/spark-1.5.1-bin-hadoop2.6/test-data/dev360data[[emailprotected] dev3

If you are using multiple e-mail addresses to log on to different services at Microsoft, you will need to select an e-mail address as your "master" Microsoft account. Why choose only one? A single Microsoft account (e-mail address and password) is simple and easy to remember and makes it easy for you to log on to all Microsoft related devices and services. These devices and services include computers and tablets running Windows 8 or Windows RT, Windows Phones, the

Tags: ike _id row character order line data position minimum 0 rows(1) Single-table query 1) Environment preparationmysql> CREATE TABLE company.employee5( id int primary key AUTO_INCREMENT not null, name varchar(30) not null, sex enum(‘male‘,‘female‘) default ‘male‘ not null, hire_date date not null, post varchar(50) not null, job_description varchar(100), salary double(15,2) not null, office int, dep_id int ); insert into company.employee5(name,sex,hire_date,post,job_description,salary,office,d

, multiply, divide and so on operation, the result is still empty. Sql> select 1+null from dual; Sql> select 1-null from dual; Sql> select 1*null from dual; Sql> select 1/null from dual; Query to a record.Note: This record is the null in the SQL statementSet some column null values UPDATE table1 set column 1=null where column 1 is not NULL; There is an existing sales table sale, the table structure is: Month ch

> Select 1 from dual where null= '; No records found. Sql> Select 1 from dual where ' = '; No records found. Sql> Select 1 from dual where null is null; 1 --------- 1 Sql> Select 1 from dual where NVL (null,0) =NVL (null,0); Got is all the data that's empty and not empty 1 --------- 1 The null value is added, subtract, multiply, divide and so on operation, the result is still empty. Sql> select 1+null from dual; Sql> select 1-null from dual; Sql> select 1*null from dual; Sql> sel

; 1--------- 1sql> Select 1 from dual where NVL (null,0) =NVL (null,0); 1--------- 1 The null value is added, minus, multiply, divide, and so on, the result is still empty. Sql> select 1+null from dual; Sql> select 1-null from dual; Sql> select 1*null from dual; Sql> select 1/null from dual; query to a record. Note: This record is the null in the SQL statementSet some column null values for UPDATE table1 set 1=null where column 1 is not NULL; an existing commodity sal

Contact the Kinect for Xboxone, very excited, follow the online tutorials to start configuring and want to use development as soon as possible. The first step, install the SDK, success, the second step, insert the data cable ... The thing is stuck here, insert the data cable, power up, the system should automatically load driver, but in the Device Manager, there is no discovery. My Build Environment information: Windows Ten OS Lenovo E440 CORE i5 processor, frequency 2.5ghz,4g ram,usb3.0 (S

Starting October 7, the Windows 8/8.1 China Store (which needs to be updated to the latest edition) has started to support the use of Alipay to purchase applications. At the same time, the Windows gift Card recharge channel, which was not available in the store, was previously open and could be paid with the Microsoft account balance, ready for the upcoming Windows gift card and the official release of Windows 8.1. The move means that Microsoft is starting to unify the way it pays for its platf

Browse Online Code: http://msdn.microsoft.com/zh-cn/magazine/cc164480.aspx This article discusses: Game Development Basics Spacewar Starter Kit Add features for Spacewar Customizing game Graphics This article uses the following techniques: XNA Game Studio Express, Xbox 360 and C # Directory Game Development Basics Spacewar Starter Kit Understanding Game Loops Defense! Rendering details Fire The Shields! Bonus points: Change space! Laun

development of the CPU + GPU hybrid design, to prepare for the future restoration of software raster, at the same time, it can be used to support rendering of WPF on low-end graphics cards in a short period of time. In addition, dx11 also adds direct2d for planar plotting and TrueType text painting components. [MDX] updateCurrently, the main DX hosting APIs on Windows can access almost all functions of DX9. However, in August, The dxsdk is the last official version that supports MDX. Later vers

"Real Start Menu" Windows 8.1 Update's "Fake" Start menu can only be returned to the Metro main screen, a change that is clearly not satisfying for traditional users. And through the current leaked Windows 9 information, Microsoft is not willing to simply bring back the traditional Start menu, but designed an integrated traditional desktop and Metro application of the huge Start menu, but obviously, this has been able to meet the needs of traditional users "Better integration of th

), unbounded following (last row)(1) If the statement is (partition by XXX order by XXX), the default window is unbounded preceding and current row.(2) The statement is (partition by XXX). The window defaults to unbounded preceding and unbounded following.(3) The statement is (), and the window defaults to all result sets.A possible problem occurs when the first method is used.The test environment is as follows:Create Table windowcheck(Oc_date integer,City varchar (50 ),Id integer,

Pentaho schema workbench graphic tutorial,Pentaho schema workbench graphic tutorial The following is a simple example to describe how to use schema workbench. The table example shows a simple sales table, product, product category, and customer dimension table on the network. The logic is simple and easy to understand. 1. Create a sample database 1.1. Create a table SQL There are four tables, one fact table and three dimension tables. The statement for creating a table is as follows: /** Sales

Copy codeThe Code is as follows: create table Sale ( [Id] [int] identity () not null, -- Automatic Growth [Name] [varchar] (16) not null, [SaleTime] [datetime] not null, Constraint [PK_Sale] primary key clustered -- create a primary key ( [Id] ASC ) ) -- Insert some records Insert Sale ([Name], [SaleTime]) values ('zhang san', '2014-1-1 ') Insert Sale ([Name], [S