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Нашёл 13 млн ответов for 'the effect of alcoholic UNION ALL SELECT NULL,NULL,NULL,NULL,NULL-- LSRx'.

4/4
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

064-29: Creating Efficient SQL - Union Join without the Union...
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 select aNumCol from a UNION select aCharCol from b. Alot more subtle and, worse yet, platform specific is the issue of database performance.

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

242-31: SQL Set Operators: So Handy Venn You Need Them
Before we look at the effect of this statement, let’s look at the syntax and compare it to Since the OUTER UNION operator, with the CORRESPONDING option in effect, does The OUTER UNION operator preserves columns which do not align, and generates nulls...

https://support.sas.com/resources/papers/proceedings/proceedings/sugi31/242-31.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

OWASPBostonv1
▸ abcd' UNION ALL SELECT NULL,(SELECT. string_agg(table_name,', ') AS tables_list FROM information_schema.tables WHERE ▸ fetch Users and password hashes: ▸ abcd' UNION ALL SELECT NULL,(SELECT. concat(email,' : ',password) FROM public.ctf_user where id=2)—.

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

OWASP Backend Security Project 1.0beta
SELECT * FROM items; This simplification of the query allows the attacker to bypass the This example examines the effects of a different malicious value passed to the query constructed and Connection connection = null; PreparedStatement preparedStatement = null; ResultSet resultSet...

https://owasp.org/www-pdf-archive/OWASP_Backend_Security_Project_1.0beta.pdf

Advanced SQL Injection
Union: The SQL UNION is used to combine the results of two or more SELECT SQL statements into a single result. Really useful for SQL Injection :) Blind: Asking the DB a true/false question and using whether valid page returned or not, or by using the time it took for your valid page to return as the...

http://index-of.es/Varios-2/Advanced%20SQL%20Injection.pdf

Zero allocation vulnerabilities
if (ptr == NULL) return –ERR; memcpy(ptr, data, size-1); Test for NULL does not replace a 0-size check! 2. Scenario 2: Zero alloc (2). PSTRUCT data = readfromuntrusted(); if (data->nbr > MAXSHORT) return –ERR; UINT size = data->nbr * sizeof(TYPE)

https://index-of.es/Exploit/HES10-jvanegue_zero-allocations.pdf

SQL Injection Pocket Reference
• Error: AND(SELECT COUNT(*) FROM (SELECT 1 UNION SELECT null UNION SELECT !1)x GROUP BY CONCAT((SELECT table_name FROM information_schema.tables LIMIT 1),FLOOR(RAND(0)*2))). Note: • version=9 for MySQL 4 • version=10 for MySQL 5.

https://index-of.es/Failed-attack-techniques/SQL_Injection_Pocket_Reference.pdf

Microsoft PowerPoint...
Comparisons Involving NULL and Three-Valued Logic. Meanings of NULL. Unknown value Unavailable or withheld value Not applicable attribute. Each individual NULL value considered to be different from every other NULL value SQL uses a three-valued logic

http://eecs.csuohio.edu/~sschung/cis430/Elmasri_6e_Ch05AddedAllSetDivision_Nov2016_2.pdf