+or+1+group+by+concat_ws(0x3a,version(),floor(rand(0)*2))+having+min(0)+or+1.
Converts all characters in a given payload to overlong UTF8 (not processing already encoded) (e.g. SELECT -> %C1%93%C1%85%C1%8C%C1%85%C1%83%C1%94).
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).
Пример: SELECT header, txt FROM news UNION ALL SELECT name, pass FROM members Это позволит объединить результаты из таблиц news и
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Let’s say we have a string like +7(903)-123-45-67 and want to find all numbers in it. But unlike before, we are interested not in single digits, but full numbers: 7, 903, 123, 45, 67. A number is a sequence of 1 or more digits \d. To mark how many we need, we can append a quantifier.
1 row in set (0.01 sec). Error_for_division_by_zero. При делении на ноль в строгом режиме генерируется ошибка, а нестрогом — предупреждение при выполнении операторов INSERT или UPDATE.
C library function - rand() - The C library function int rand(void) returns a pseudo-random number in the range of 0 to RAND_MAX.
Given an expression string, write a program to examine whether the pairs and the orders of parentheses are balanced in expression or not.
[Sign, sign a person is delivered】. 【Russia】 Delivery failed.【 Reason: Failure to contact receiver temporarily.】