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Нашёл 3 млн ответов for 'Tafsir ibnue UNION ALL SELECT NULL,NULL-- WpbP'.

Microsoft Word - Blindfolded SQL Injection - Final.doc
Injecting 11223344) UNION SELECT NULL,NULL,NULL,NULL WHERE 1=2 --, results in the following query Once the NULL-based UNION statement works, it is a trivial process to identify the types of each column. In each iteration a single field is tested for its type.

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

The OWASP Foundation
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://www.owasp.org/images/e/ed/SQLinjectionNotOnly.pdf

064-29: Creating Efficient SQL - Union Join without the Union Clause
select aNumCol from a UNION select aCharCol from b. Alot more subtle and, worse yet, platform specific is the issue of database performance. Since each member of a UNION clause is itself a fully formed, stand alone fullselect statement, database implementations execute each member...

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

242-31: SQL Set Operators: So Handy Venn You Need Them
The UNION, INTERSECT, and EXCEPT operators by default purge duplicate rows (although the optional ALL keyword can be used to preempt this behavior). Because OUTER UNION results typically include mismatched columns, filled in with missing values, the very concept of duplicate rows is...

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

052-29: The Power of CALL SYMPUT - DATA Step Interface by...
The CALL SYMPUT statement in DATA _NULL_ step assigns the format FMTFLAG as the values to a set of macro variables FMT1-FMT6. Then in the macro LABELS, the variables FLAG1-FLAG6 are associated with the labels using the values of the macro variables FMT1-FMT6.

https://support.sas.com/resources/papers/proceedings/proceedings/sugi29/052-29.pdf

SQL Injection
1234' or 1=1 union select null from balances; -- The used SELECT statements have a different number of columns. Remediation – Prepared Statements. • Java. PreparedStatement getSales = null; String getPSstring = "select name, value from tbl1 where cond=? and status=?"

https://www.cs.montana.edu/courses/csci476/topics/sql_injection.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://repo.zenk-security.com/Techniques%20d.attaques%20%20.%20%20Failles/SQL_Injection_Pocket_Reference.pdf

Codegate 2010 Prequal - Problem Solution
Finally, we select the key from the table This means that they are searching for the single quote character in the query variable. A possible way to bypass ltering, is to embed null bytes in the query and post variables.

https://repo.zenk-security.com/Techniques%20d.attaques%20%20.%20%20Failles/Codegate%202010%20Prequal%20-%20Problem%20Solution%20-%20PPP.pdf

Database Management Systems Lecture Notes
Since two null columns may eventually be assigned different values, one null can't be compared to another in the conventional way. There is no defined inner ordering for rows that have duplicate values for all Order By columns. Database nulls require special processing in ORDER BY.

https://www.jbiet.edu.in/coursefiles/cse/HO/cse2/DBMSI-III.pdf