...name_const(CHAR(111,108,111,108,111,115,104,101,114),1),name_const(CHAR(111,108,111,108,111,115,104,101,114),1))a) -- 'x'='x. Данные по запросу: черный список' or (1,2)=(select*from(select name_const(CHAR(111,108,111,108,111,115,104,101,114),1)...
1stsafe.ruI have seen many queries with something as follows. … What does this 1 mean, how will it be executed and, what will it return? Also, in what type of scenarios, can this be used?
stackoverflow.comНовичков часто ставит в тупик конструкция типа: SELECT *. FROM [dbo].[bkp_product]. WHERE 1=1. AND [model] = 'Product 1'. AND [quantity] = 939. Зачем пишут в коде 1=1? Ответ - для удобства при отладке кода. Покажу на примере. Напишем простой селект. SELECT *.
mmokaev.blogspot.comSelect2 is a jQuery based replacement for select boxes.
select2.orgSimple, clean app to help you learn SQL and perfect your SELECT querying skills!
dadli.bizSELECT DISTINCT p1.model, p2.model, p1.speed, p1.ram FROM pc p1, pc p2 WHERE p1.speed = p2.speed AND p1.ram = p2.ram AND p1.model > p2.model. Задание: 17 (Serge I: 2003-02-03). Найдите модели ПК-блокнотов, скорость которых меньше скорости любого из ПК.
exercises-on-sql.blogspot.com0 1 2 3 4 5 6 7 8 9 a b C D e f. Nul soh stx etx eot enq ack bel bs tab lf vt ff cr so si. ASCII.
ascii.clselect NAME from(select name as NAME, displacement, numguns from ships inner join classes on ships.class = classes.class union select ship as NAME
artvk.blogspot.com