Пример: SELECT header, txt FROM news UNION ALL SELECT name, pass FROM members Это позволит объединить результаты из таблиц
www.club-oracle.com: «Подсказка Materialize представляет собой технику оптимизации запросов и может быть особенно полезна для больших наборов данных. Материализация подзапроса означает создание определённого типа динамической временной таблицы (dynamic temporary...
SELECT concat('$ ', FORMAT(SUM(sale_price), 2)) FROM `transactions`. ... do the exact same thing, only FORMAT(... , 2) ensures that your sales price is formatted as a decimal with two digits behind the . (which is the format typically used for monetary values in transactions between humans).
integral of (x-1)/ln(x) from 0 to 1, classic IIT JEE integral - Продолжительность: 14:32 blackpenredpen 54 830 просмотров.
SELECT order_detail_id, quantity -- Author: TechOnTheNet.com FROM order_details; Example - Comment on Multiple Lines.
flag 常见表1select flag from flag SQL 注入的基本原理123select * from user where username='' and pass=''# 构
/* exp_select.c - select() interface for Expect. Written by: Don Libes, NIST, 2/6/90. Design and implementation of this program was paid for by U.S. tax dollars. Therefore it is public domain.
if ($result = $mysqli->query("SELECT Code, Name FROM Country ORDER BY Name")) {.
SELECT * FROM news WHERE id_news = 5. Но если злоумышленник передаст в качестве параметра id строку -1 OR 1=1 (например, так: http
L'istruzione SELECT @local_variable viene in genere usata per restituire un valore singolo nella variabile.SELECT @local_variable is typically used to return a single value into the variable. Se tuttavia expression corrisponde al nome di una colonna, è possibile che restituisca più valori.However...