select cast (2000 as type of quint) from rdb$database select cast (2000 as int) ... 999999.9' union all select 999,2 and '0'='0 где купить в аптеках
Union select null, null, null, null, null, null, null from information_schema.tables. for a small database containing three tables. this instruction is used in sql injection I tried it and it worked but I didn't really
Union select null, null, null, null, null, null, null from information_schema.tables. for a small database containing three tables. this instruction is used in sql injection I tried it and it worked but I didn't really know how it...
0x39313335313435363237322e39 is just the hex text of 91351456272.9.
Best Result For : 999999.9 uNiOn aLl sElEcT cAsT 0x393133353134353632312e39 as char --. تفسير فرط السبحة في المنام.
Используйте NULL в UNION-инъекциях вместо попыток угадать строку, дату, число и прочее. Но будьте аккуратны при слепой
As for being a malicious bastard when it comes to security (which is the approach I take)... I usually have an apache front end that does nothing but
I have the following query that may return null if certain dates are selected, I want to display 0 instead of a blank but cannot figure it out: * I removed the date code to make it easier. SELECT ISNULL(COUNT(*), '0') AS thecount.
then using zero makes more sense (as in if you use NULL, you cannot logically use p && !q - you need to explicitly compare against NULL, unless you assume NULL is zero, in which case why use NULL). Is there any objective reason to prefer zero over NULL (or vice versa), or is all just personal preference?
Существуют специальные операторы IS NULL и IS NOT NULL, которые позволяют производить сравнения с NULLами. IS NULL вернёт истину, если операнд имеет значение NULL и ложь, если он им не является.