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Tags: Other pre-important principles good execution beginner SQL statementAs a beginner, I learned that the foundation is really important,This essay is written for my own hope I can hold onOf course, I also want to help others a little.In the process of SQL injection, I felt more and more the importance of those basic functionsIn fact, I feel that SQL injection

All together to learn Nhibernate+nunit (Vs2012+sql Server2008)Category: C#2013-08-10 18:47 1589 people read reviews (5) Favorite reportsNhibernatenunitvisual Studio 2012If you have not heard of NHibernate or NUnit, then, congratulations, like me, shake hands. If you are already an old soy sauce, that dear different do not take you to play, please consciously detour,,,. I would like to dedicate this article

Write a summary, always learn to forget. 11.01 Re-learning SQL-------Oracle#1. Column formatYou can control the display format of columns in a query result set by using the column command.Syntax format: column[column_name alias option]The column_name parameter specifies the name of the column that will be controlledThe alias parameter is used to specify the name of the columnThe option parameter is used to

table, it is better to destroy the index first, and then build the index after the data has been updated, which increases efficiency.7> index to occupy database space. When designing a database, take into account the required index space.8> try to keep the table and its index on separate disks, which can improve query speed.6. View6.1, the advantages and disadvantages of the view, mainly in the simplification of operations, custom data, merge separated data, security and so on.There are two mai

Recently has been studying the blog, in fact, is now a popular self-media, it is interesting that the netizens have written their own blog, the establishment of a small station, and now went to the platform for others to work free, but also enjoy themselves, do not know what the situation.Blog information:Topics: Learning topics related to reading notes.Web site: Use a. NET domain name as the URL.Content: Writing and contributing, such as: Camel Xiangzi good word good wordsThis system uses

the login name and account, view information and field namesInstance: The site is known to be an access injectionThe judging field is 12Sqlmap ran out of the admin table, the union query is 5 and 7can find ID, but could not find the admin and pass, obvious access injectionFind offset PointSo say 12-8=44*2=812-8=4 all have two parameters, there are four field values http://218.245.4.113:8888/web03/ca55022fa7ae5c29d179041883fe1556/index.asp?id=886 and 1=1 Union select 1,2,3,4, * FROM (admin as a

Tags: nbsp Data jin here Val inf number Sele SummaryFor SQL, the first concept is that it's a table, we're looking at a column, and we're going to return the rows that match the criteria in that column. Well, if you understand this, you're going to have a look at some specific grammar, really, very simple, come on. SQL uses single quotation marks to wrap text values (most database systems also accept

load//DC1. Loadoptions = ds; //var result = DC1. Gettable//foreach (Class cl in result)//{ //Console.WriteLine ("Class:" + CL.) CName); //foreach (Student item in CL. Student)// { //Console.WriteLine ("\ T" + item.) Name); // } //} #endregion #regionModify//var result = DC1. Gettable//foreach (var item in result)//{ //item. Yuwen-= 5; //}

1. Sorting DataIf you do not sort, the data will generally appear in the order in which it appears in the underlying table, which may be the order in which the data was originally added to the table. However, if the data is subsequently updated or deleted, the order is affected by how the DBMS reuses the storage space.Clauses: SQL statements consist of clauses, some are necessary, and others are optional. A clause is usually made up of keywords plus t

)3.4FOREIGN key (foreign key)------used to mark a row of this table in another table or this table3.5CHECK------Ensure that a column of data meets a particular condition3.6The default------sets an initial value that is set to this value when the data is not assigned3.7INDEX------used to quickly create and retrieve data from a database4. This is a constraint summary, I'll try these constraints later, (not full,unique,primary key has been tried in the blog that added the primary key)(attached) MyS