sql practice software

before cloning the warehouse:2.Copy link. Clone succeeded:3. You can then push the fileL GIT init to create the local repository, otherwise this error will occur:After the initial, you can git add to put the file into the scratch spaceL can also copy something from a repository (folder) that was originally copied from GitHub and delete it.L then commit the file to the workspace| re-remoteLater, I encountered an error: branch conflictAnd then find a solution in this place: http://segmentfault.co

Brief introductionBased on the QT Qtcpserver and Qtcpsocket and UI programming, the software assistant for online typing of c/S model based on TCP protocol is implemented, the server handles the typing data of each client and displays the online typing customer list to 实时 update the typing data. Clients can implement offline typing exercises and online typing exercises, where online typing exercises can compete with online users for typing speed and d

sentence is passed.So how does it work in the fly?1. In a video to find a scene 2. Listen to the whole scene (it is possible that the scene is the first time or maybe a review) If you listen to the first time, you can listen to how much, the original intention is to master the effect of the scene If it is a review, understand the main idea is one of the goals, another goal is to use the "sieve" method to find the failure to grasp (understand, say, write the right) sentence

Fifth Chapter mainly speaking 1. 2.The temporal logic introducesKripkeThe First order linear temporal logic is explained by the example of the queue and its operation and the Hanoi operation planning problem. The calculation tree logic is generallyCTLwith thectl*the general designation. 3.model detection is in the software systemKripkeunder the structure model, thectl*The correctness of the software nature

Menu Applet v1.0 Internal Modular command-line menu applet V2.0 Implement command line menu applet with reusable list module V2.5 Implement command line menu applet with callback enhanced list module V2.8 Design the menu as a reusable subsystem Summarize:Rome is not built in a day, the program is not a time to write well, but in a slow iteration to modify, this is probably my biggest harvest.Seven weeks of learning, basic and Menu applet goes down from a simple applet, in a

conducive to the transition to Android applications, so it is not within our scope of consideration. NET can only be used for Microsoft server, this is for the love of Linux I ... Can't stand it.Why do you want to use the IntelliJ IDE? Eclipse or MyEclipse, why don't you?A: This question has been discussed thoroughly. The reason I like IntelliJ is that it's very well-developed code hinting, and even when you're writing CSS or JavaScript scripts, it has the syntax hints for HTML5 features, not t

→ draw skeleton diagram (Basic stream) → Refine branch → make path combination to prioritize8. Input domain override methodThere are three main points: Intermediate value test (equivalent to Interior point), extreme value test (upper point in the boundary), special value test (business-related, according to software function)9. Output domain Override methodThe equivalence class and boundary value of the output domain are analyzed, the equivalent clas

, learning time overflow, there is a negative study time situation.Description: Many factors determine software performance, such as hardware problems (hardware configuration), network problems (insufficient network bandwidth), program architecture design issues (a large number of business operations on the same table), connection configuration issues (WebLogic connection pool configuration problems)-- What I've covered in this article is only from th

Software Engineering--object-oriented analysis of theory, method and practiceDuring the requirements acquisition phase, developers focus on understanding the user and their usage needs. In the demand analysis phase, developers focus on understanding what the system needs to build, at the core of which is to produce an accurate, complete, consistent, and verifiable system model called an analytic model.The object-oriented analysis model consists of thr

The Nineth chapter mainly talk about the normative code, first of all to have the appropriate blank line, pay attention to the branch alignment and indentation, naming rules: The name of the identifier should be intuitive, you can hope to understand the text, preferably in English words or their combination, the length of identifiers should meet the minimum length of the maximum information principle, Long English words should use some common and reasonable abbreviations or abbreviations of appl

Demand EngineeringThis chapter takes the object-oriented technology as the core, comprehensively, deeply and systematically introduces the tasks, processes, methods and tools of each stage of software development.Software requirements can be divided into business requirements, user requirements, system requirements, functional requirements and non-functional requirements and other types. Requirements engineering is the application of proven principles

old.", result); (+ } The methods for extracting words are tested as follows:1 @Test 2 public void Testtakeword () throws IOException {3 File file =new file ("D:/normal.txt"); 4 Deal D OS = new Deal (); 5 String str = dos.getstring (file), 6 listThe test prints the result: Hello my name is matin I am thirty three years oldThe following tests are done for calculating the word frequency:1 @Test 2 public void Testfrequency () {3 listThe

must recognize their responsibilities, in their own duties can not complete the task of timely work to change, to seek help. Seeking help is the beginning of helping each other, and in the ability to help others when they are in trouble. The team should meet in time, the difficulties in the work, experience and new ways to share the improvement, on the one hand to understand the progress of the team, the progress of their own work to adjust; On the other hand, the team needs to release pressure

(%) ...... ...... 5.2.2. Defect statistics5.3. Documentation included with the test report System Deployment Manual User manual SummarizeThrough the sharing of this article, we can provide the Test Manager and tester with the system test execution process and the operational reference specification document to improve the testing quality. There are shortcomings, welcome

The object-oriented analysis model has a functional model (use case, Scene), Analytical object model (class diagram, object graph), dynamic model (state diagram, sequence diagram). The identification analysis class provides a heuristic approach to discovering bounded classes, control classes, and entity classes, but using this approach still requires a lot of experience from developers. Boundary classes are information from participants, which can be used by entity classes and control classes. T

1, (1) in 2-31, only two adjacent numbers are not equal to the approximate number. (2) does not exist (3) 2147483648 (4) Optimize the outermost loop in parallel 2, It takes two to three weeks to complete, ranging from hundreds to thousands of lines of code. Few people use code management tools, most of which are completed by cooperation. The program is not easy to maintain. Earlier versions indicate that many users have not completed their jobs themselves. Modern

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of deleteDelete does not completely free up space, will it cause space leakage? You don't have to worry about it, but these pages will be reused when the tables are inserted into the new data, although they are not released. So these pages are not "leaked" and will be left to SQL Server for reuse.If you really want to use the DELETE statement, if the table has a clustered index, rebuild the index can be freed out of the space, but if not, you can reb

Original: SQL Server Enterprise Platform Management Practice reading notes--about how SQL Server databases are restoredThis article is the backup method of the previous article, this article is about the restore scenario, in SQL Server more than 2005 existing restore scenarios are generally divided into the following 4

SQL Server Enterprise Platform Management Practice reading notes--sql data file space usage and management in server1. Table and index storage structureBefore SQL Server2005, a table was stored in a B-tree or a heap. Each B-tree or heap has a record corresponding to the sysindexes. After