SQL Injection Attacks - Macrotone Blogs
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oracle - NOT IN selection with NULL values - Stack Overflow
data2(id, val) as (select 1, null from dual union all select 2, '2' from dual).
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Confusing SQL error in SELECT NULL, *, NULL, NULL - Stack Overflow
UNION ALL SELECT NULL, *, NULL, NULL FROM email. I understand what this does and why; the hacker needs to create a query that has the same number
SQL Injection for MySQL – Gingsoft | select, is obvious
select, is obvious. null, is just a place holder that is used because a union statement requires that the number of fields match the 1st query that it’s appending to.
SELECT (обучающий этап) задачи по SQL запросам
exercises-on-sql.blogspot.com
Задачи по SQL запросам. Задание: 1 (Serge I: 2002-09-30). Найдите номер модели, скорость и размер жесткого диска для всех ПК стоимостью менее 500 дол. Вывести: model, speed и hd. SELECT model, speed, hd FROM PC WHERE price < 500. Задание: 2 (Serge I: 2002-09-21).
MySQL CONCAT() Function
SELECT CONCAT("SQL ", "Tutorial ", "is ", "fun!") AS ConcatenatedString; Try it Yourself ». Definition and Usage. The CONCAT() function adds two or more expressions together. Note: Also look at the CONCAT_WS() function. Syntax.
MySQL :: MySQL 8.0 Reference Manual :: 12.5 String Functions and...
CONCAT() returns NULL if any argument is NULL.
Шпаргалка по SQL инъекциям | DefconRU
(M): SELECT CONCAT(login, password) FROM members. 7. Строки без кавычек Есть несколько
Внедрение SQL-кода — Википедия
-1 UNION SELECT group_concat(username, 0x3a, password) FROM admin.