what is difference between ods and data warehouse

What is the difference between stack and stack? Why is stack speed fast and stack speed slow? Both stacks and stacks are places where Java is used to store data in Ram. Unlike C ++, Java automatically manages stacks and stacks, an

= new BufferedReader (new InputStreamReader (system.in));Same point:Inputstream,outputstream,reader,writer are abstract classes. So you can't just newThe difference between a byte stream and a character streamThe byte stream is very similar to the use of character streams, so what is the

Difference What is the difference between a post and a get when a form is submitted? Solution Idea: The difference between the two needs to be submitted to the form before it can be seen, mainly in the way of

Php Chinese network (www.php.cn) provides the most comprehensive basic tutorial on programming technology, introducing HTML, CSS, Javascript, Python, Java, Ruby, C, PHP, basic knowledge of MySQL and other programming languages. At the same time, this site also provides a large number of online instances, through which you can better learn programming... Reply content: I personally understand the difference between a narrow front-end and a broad front-

. iscompleted)//synchronous call is not over, block up and wait.{This. Waitforwaithandle (entry. AsyncWaitHandle);}if (entry.exception! = null){Throw entry.exception;}return entry.retval;}What, did we finally see PostMessage? Marshaling is implemented through the Windows Messaging mechanism. The delegate method that needs to be marshaled

What is the difference between a SQL Server database and a MySQL database? A lot of friends in the IT industry. For SQL Server database and MySQL database often confuse, think these two kinds of database is the same, otherwise, today we analyze the difference between these t

: hive is highly-delayed, structured, and analysis-oriented, while hbase is low-latency, unstructured, and programming-oriented. Hive Data Warehouses have high latency on hadoop. Hbase is located at the structured storage layer, and hadoop HDFS provides hbase with high-reliability underlying storage support. hadoop ma

sandbox. Different applications run in different processes. Each android dalvik application is assigned an independent linux PID (app _*)) One of the primary differences between Dalvik and the standard Java Virtual Machine (JVM) Is that Dalvik is based on registers while JVM is based on stacks. Why

Laravel in the construction method of the class is dependent on the injection __construct (User $user) and then the following methods are directly used $this->user call, with the direct use of user::find () What is the difference? What kind of comparison

freed function is the free function:The Free function prototype is:void free（void *ptr） Function: Frees the memory space requested by the above 3 functions. Parameter: ptr: Points to the first address of the memory space that needs to be freed. C + + languageIn C + +, memory is divided into 5 extents, namely heap, stack, free storage, global/static storage, and constant storage. Apply and release the alloc

Ask a weak question, for example, what is the difference between the following code when determining whether the array is empty? The {code...} is weak. For example, what is the

$ Out quot; and then $ out. what is the difference between it and $ out? the following example shows PHPcode $ fp @ fsockopen ($ whoisserver, $ port, $ errno, $ errstr, $ timeout) ordie ( quot; socketError quot ;. $ errno. quot; $ out = "" and then $ out. = What is the