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Нашёл 2 млн ответов for 'Tafsir ibnue UNION ALL SELECT NULL,NULL,NULL,NULL-- zTky'.

064-29: Creating Efficient SQL - Union Join without the Union Clause
data _null_; merge a b; by key; run; KEY ACOL BCOL p one six q two seven r three eight. The row-wise join returns a single column 'col' instead with a result set containing all the rows of both constituent tables a and b, regardless of the values of each table's 'key' column. SELECT col FROM a UNION...

https://support.sas.com/resources/papers/proceedings/proceedings/sugi29/064-29.pdf

Chapter 3 Pointer Subterfuge
l One can use NULL byte attack. %00’ UNION SELECT password FROM tblUsers WHERE username=‘admin’--. URL Encoding for NULL. NULL byte can terminate strings and hence the remaining may Not be filtered May work in Managed Code Context.

https://index-of.es/Attacks/SQL%20injection%20attacks/Lecture8.pdf

Csg2
Key Type Null/ Unique Default Value. Data Type Length. The UNION SET Operator The UNION operator returns all rows selected by either query. UNION operates over all of the columns being selected. • NULL values are not ignored during duplicate checking. •

https://index-of.es/Rdbms/Oracle9i%20SQL-Slide%20&%20Guide-II.pdf

Practical Identification of SQL Injection Vulnerabilities
Type: UNION query Title: MySQL UNION query (NULL) - 2 columns Payload: id=example' UNION ALL SELECT NULL, CONCAT(0x3a6e79753a,0x6b6a5645626a66695478,0x3a62716c3a)# AND 'JiRp'='JiRp&Submit=Submit ---. Although this vulnerability is reported in an HTTP GET parameter...

https://us-cert.cisa.gov/sites/default/files/publications/Practical-SQLi-Identification.pdf

SQL Injection
1234' and account=NULL; -- For mysql, there must be white space after --. You are identified as name userid. – We know account is a valid field name, because. 1234' or 1=1 union select null from balances; -- The used SELECT statements have a different number of columns.

https://www.cs.montana.edu/courses/csci476/topics/sql_injection.pdf

Null Session Enumeration from a
Null Session Enumeration from a Windows-Based System. The first step in enumerating CIFS/SMB is to Exercise 1: Null session enumeration using WinScanX: in this exercise, you will run 9. You can also view the output of the scan by clicking the View Reports button and selecting the various reports...

https://www.utc.edu/center-academic-excellence-cyber-defense/pdfs/4660-lab4.pdf

Advanced_SQL_InjectionV2
All queries in an SQL statement containing a UNION operator must have an equal number of expressions in their target lists. Change the first part of the query to a null or negative value so we can see what field will echo data back to us.

https://owasp.org/www-chapter-belgium/assets/2010/2010-06-16/Advanced_SQL_InjectionV2.pdf

OWASPBostonv1
▸ abcd' UNION ALL SELECT NULL,(SELECT version())--. Let’s fetch the current db user. current_user variables and the getpgusername() function: ▸ abcd' UNION ALL SELECT NULL,(SELECT user)

https://owasp.org/www-pdf-archive/Abhay_Boston_2017_World_Tour_Presentation.pdf

Microsoft PowerPoint - SQLinjectionNotOnly.ppt
1'))) UNION ALL SELECT NULL, Concatenated SQL query# AND ((('RaNd' LIKE 'RaNd. ORDER BY clause brute-forcing NULL brute-forcing Sequential number brute-forcing. The number of columns in the SELECT statement is fewer than the number of columns that you want to inject.

https://owasp.org/www-pdf-archive/SQLinjectionNotOnly.pdf

SQL Injection in Oracle Webapps
SELECT firstname, lastname FROM customers UNION SELECT username, null FROM ALL_USERS ORDER BY 1,2. The most common techniques are the usage of "ORDER BY" or adding NULL values to the second query. SELECT * FROM table UNION.

http://www.red-database-security.com/wp/oracle_sql_injection_2009.pdf