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Нашёл 7 млн ответов for 'the effect of alcoholic UNION ALL SELECT NULL,NULL,NULL,NULL,NULL,NULL,NULL-- Uydr'.

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UNION ALL SELECT NULL, *, NULL, NULL FROM email ... Use of an unqualified * with other items in the select list may produce a parse error. ... select NULL, email.*, NULL, NULL from email ... the tables when only using one table and selecting literals in addition to all the columns on that single...

https://www.docdroid.net/file/download/y6aFEhT/1589610482388-pdf.pdf

Advanced_SQL_InjectionV2
Union: The SQL UNION is used to combine the results of two or more SELECT SQL statements into a Notice that each SELECT statement within the UNION must have the same number of columns. Change the first part of the query to a null or negative value so we can see what field will echo data...

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

Go Secure Coding Practices
select * from data where id=-1 union select null,null,database()

https://owasp.org/www-pdf-archive/Owasp-171123063052.pdf

The Core Rule Set
All required headers are there: Host, Accept, User-Agent Host is not an IP address Content length a must for none GET/HEAD methods. Characters: Valid encoding Only printable for headers Printable and formatting for parameters Only NULL not allowed in international applications.

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

SQL - unions clause
The SQL UNION clause/operator is used to combine the results of two or more SELECT statements without returning any duplicate rows. To use UNION, each SELECT must have the same number of columns selected, the same number of column expressions, the same data type...

http://www.tutorialspoint.com/sql/pdf/sql-unions-clause.pdf

Microsoft Word - Blindfolded SQL Injection - Final.doc
This type of NULL injection serves two purposes. The main purpose is to get a working UNION statement that has no errors. Although this UNION still does not retrieve any real data, it provides an indication that the statement indeed works. Another purpose of this empty UNION is to get a 100...

https://www.imperva.com/docs/IMPERVA_HII_blind-sql-injection-attacks.pdf

Java Security.key | ‘; "select * from employees where last_name = '';'"
Type: UNION query Title: MySQL UNION query (NULL) - 6 columns Payload: name=Baaz' UNION ALL SELECT NULL,NULL,NULL,NULL,CONCAT(0x717a6b6471,0x4f6145586b4a6e436d71 | NULL.

https://s3.amazonaws.com/cmj-presentations/hacking-rwx-2017/Hacking_and_Hardening_Java_Web_Applications.pdf

Java Security.key | ‘; "select * from employees where last_name = '';'"
Type: UNION query Title: MySQL UNION query (NULL) - 6 columns Payload: name=Baaz' UNION ALL SELECT NULL,NULL,NULL,NULL,CONCAT(0x717a6b6471,0x4f6145586b4a6e436d71 | NULL.

https://s3.amazonaws.com/cmj-presentations/hacking-uberconf-2017/Hacking+and+Hardening+Java+Web+Applications.pdf

Java Security.key | ‘; "select * from employees where last_name = '';'"
Type: UNION query Title: MySQL UNION query (NULL) - 6 columns Payload: name=Baaz' UNION ALL SELECT NULL,NULL,NULL,NULL,CONCAT(0x717a6b6471,0x4f6145586b4a6e436d71 | NULL.

https://s3.amazonaws.com/cmj-presentations/hacking-devoxx-2017/Hacking+and+Hardening+Java+Web+Applications.pdf

Microsoft PowerPoint - PresentationCabot.pptx
§ OCLVoid includes the null value (and therefore all supertypes of OCLVoid). Union of set and set2 Intersection of set and set2 Difference set; elements of set, which do not consist in set2 Set of all elements § Select – Result: Subset of collection, including elements where booleanExpr is true.

http://www.sti.uniurb.it/events/sfm12mde/slides/cabot.pdf