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

064-29: Creating Efficient SQL - Union Join without the Union Clause
SELECT col FROM a UNION SELECT col FROM b. data _null_; set a b; run; COL one two three six seven eight. The ambiguity whether to list table a or b first, before the UNION statement is a big hint that this query will perform sub-optimally at the database. When consituent table sizes are small one...

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

Microsoft PowerPoint - SQLinjectionNotOnly.ppt
1'))) UNION ALL SELECT NULL, Concatenated SQL query# AND ((('RaNd' LIKE 'RaNd. The number of columns in the SELECT statement is fewer than the number of columns that you want For a UNION query SQL injection exploit: SELECT name, surname FROM users WHERE name='foobar...

https://owasp.org/www-pdf-archive/SQLinjectionNotOnly.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. 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://index-of.es/Varios-2/Advanced%20SQL%20Injection.pdf

Youth and Alcohol: Laws and Enforcement--Is the 21-Year-Old...
It describes the State laws about youth and alcohol and how State alcoholic beverage control agencies enforce the laws. During June and July 1991, we conducted interviews with State alcoholic beverage control (ABC) and/or State enforcement agency officials from all 50 States and the District...

https://oig.hhs.gov/oei/reports/oei-09-91-00650.pdf

Nulls Make Things Easier?
Nulls are a very useful but also very error-prone relational database feature. This talk is designed It is this writer’s opinion than NULLs, at least as currently dened and implemented in SQL WITH ordertest AS ( SELECT NULL UNION ALL SELECT 2 UNION ALL SELECT 1 UNION ALL SELECT NULL.

https://momjian.us/main/writings/pgsql/nulls.pdf

Rela7onal Model (Chapter 2) | Null value
Careful with NULLs: select name from instructor where salary < 100000 or salary >= 100000; Wouldn’t return the instructor with NULL salary (if any). Union/Intersection/Except eliminate duplicates in the answer (the other SQL commands don’t) (e.g., try ‘select dept_name from instructor’).

https://www.cs.umd.edu/class/fall2015/cmsc424/lecture-relational.pdf

Instructor: Amol Deshpande
} More SQL. ◦ Nulls ◦ Updates ◦ Views ◦ Integrity Constraints ◦ Transac8ons ◦ Triggers. create view all-customers as (select branch-name, customer-name from depositor, account where depositor.account-number = account.account-number)" union (select branch-name, customer-name...

https://www.cs.umd.edu/class/fall2012/cmsc424/lecture-more-sql.pdf

Microsoft PowerPoint...
Comparisons Involving NULL and Three-Valued Logic. Meanings of NULL. Unknown value Unavailable or withheld value Not applicable attribute. Nested queries. Complete select-from-where blocks within WHERE clause of another query Outer query. Comparison operator IN, NOT IN, EXISTS, NOT EXISTS.

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