P D F - S E A R C H

Нашёл 11 млн ответов for 'the effect of alcoholic UNION ALL SELECT NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL-- SJog'.

Null Session Enumeration from a
Null Session Enumeration Using WinScanX. WinScanX is a free tool used for querying Windows service Exercise 1: Null session enumeration using WinScanX: in this exercise, you will 9. You can also view the output of the scan by clicking the View Reports button and selecting the various reports...

https://www.utc.edu/center-academic-excellence-cyber-defense/pdfs/4660-lab4.pdf

A name for the null pointer: nullptr (revision
A null pointer constant is an integral constant expression (expr.const) rvalue of integer type that evaluates to zero. A null pointer constant can be converted to In particular: § Distinguishing between null and zero. The null pointer and an integer 0 cannot be distin-guished well for overload resolution.

http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2431.pdf

Nulls Make Things Easier?
Nulls are a very useful but also very error-prone relational database feature. This talk is designed to help applications developers better manage their use of nulls. The three meanings of NULL: ◮ Unknown values ◮ Inapplicable values ◮ Empty placeholders.

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

Blindfolded
This comes in the form of the NULL keyword in SQL. Unlike injection of static fields, which are of a specific type (such as a string or an integer), NULL can match any type. It is therefore possible to inject a UNION SELECT statement where all fields are null, and there should be no type mismatch errors.

https://catonmat.net/wp-content/uploads/2008/07/blind-sql-injection-attacks.pdf

Inserting NULL values into a table and Selecting NULL values
select * from Employee1; -- Employee1 table does NOT have FK constraint superssn to PK ssn, so any value including NULL or ' ' will be accepted but NULL is taken as missing Insert Into Employee1 Values ('James', 'X', 'Brog1', '888660001','10-Nov-27','450 Stone, Houston, TX', 'M','55000', Null,'1')

http://cis.csuohio.edu/~sschung/cis430/HandlingNULLvalues.pdf

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

e0087test.fm
C C (NULL) (NULL). - SNO: required, numeric: session number (primary key). - S_CID: optional, alphanumeric: course number (foreign key to COURSES). Select CID, sno, sdate from courses inner join s on CID = s_CID union all select CID, 0, cast(null as date)...

https://www.abis.be/resources/coursetests/e0087test.pdf

Nulls in SQL
• What is the effect of operations with null? • What about selection condition age=20 when age is NULL? • SQL use 3 truth values: true, false, unknown. Queries with NULL. The WHERE condition for tuples in a query answer must evaluate to TRUE / 1. • SELECT e.name FROM Emp e.

https://www.cs.rutgers.edu/~borgida/cs336/SQL2.Sp17.pdf

SQL Injection in Oracle Webapps
SELECT firstname, lastname FROM customers UNION SELECT username, null FROM ALL_USERS ORDER BY 1,2. The most common techniques are the usage of "ORDER BY" or adding NULL values to the second query. SELECT * FROM table UNION.

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

SQL Injection in Oracle Reports via Lexical References
Affected products: All generated Oracle reports using lexical reference since Oracle Reports 2.0. These reports could be self developed or be part of an Oracle application (e.g. E-Business Suite). Fix: It is not possible to disable the “lexical references” functionality by setting a special environment setting.

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