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

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...

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

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...

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

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

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. ▸ Fetch Table Names: ▸ abcd' UNION ALL SELECT NULL,(SELECT. string_agg(table_name,', ') AS tables_list FROM information_schema.tables WHERE...

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

1'))) UNION ALL SELECT NULL, Concatenated SQL query#...
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. Front Range OWASP Conference, Denver (USA).

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

SQL Injection in Oracle Webapps
SELECT null,null,null,null FROM DUAL è Number of Columns = 4. Red-Database-Security GmbH. (3rd attempt). or 1=SYS.DBMS_AW_XML.READAWMETADATA((select banner from v $version where rownum=1),null)

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

iqapgv2.book
For the purpose of grouping, all NULL values are considered to be in the same group, even though NULL values are not equal to one another. The HAVING clause acts as a filter, much like the WHERE clause, on the results of the GROUP BY clause.

http://infocenter.sybase.com/help/topic/com.sybase.infocenter.dc00800.1510/pdf/iqapgv2.pdf

iqapgv2.book
For the purpose of grouping, all NULL values are considered to be in the same group, even though NULL values are not equal to one 4 The resulting rows are grouped together based on distinct values of the expressions in the GROUP BY clause, treating NULL as a...

http://infocenter.sybase.com/help/topic/com.sybase.infocenter.dc00800.1520/pdf/iqapgv2.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...

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