sql - CONCAT'ing NULL fields - Stack Overflow
just run SET CONCAT_NULL_YIELDS_NULL OFF and then all null concatenations will result in text and not null..
mysql - Confusing SQL error in SELECT NULL, *, NULL, NULL
UNION ALL SELECT NULL, *, NULL, NULL FROM email. I understand what this does and why; the hacker needs to create a
sql injection "union select null" - CodeProject
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 works can somebody help me...
Шпаргалка по SQL инъекциям | DefconRU
Синтаксис: 0xHEX_ЧИСЛО (SM): SELECT CHAR(0x66) (S) SELECT 0x5045 (это не число, а строка) (M) SELECT 0x50
The SQL Injection Knowledge Base
-1 union select 1 into @,@,@ The used SELECT statements have a different number of columns.
SQL Инъекции | Page 9 | ANTICHAT - Security online...
0x7178627071),NULL,NULL,NULL,NULL,NULL-- FkYN ---. web server operating system: Windows 2008 or Vista web application
http://realsteel.kz/?query=nokia n97 mini apps store' and(/**/select...
New Pies And Select 1 From Select Count Concat Select Select Select Distinct Concat Version 0x27 0x7e Limit 0 1 From Information Schema Tables Limit 0 1 Floor Rand 0 2 X From.
COUNT(*) / Хабр
SELECT SUM(1) FROM Sales.SalesOrderDetail. Такой вариант примерно равнозначен COUNT. Мы также получим лишний Compute Scalar на плане выполнения: [Expr1003] = Scalar Operator(CASE WHEN [Expr1004]=(0) THEN NULL ELSE [Expr1005] END).
SQL NULL Values - IS NULL and IS NOT NULL
The IS NULL operator is used to test for empty values (NULL values). The following SQL lists all customers with a NULL value in the "Address" field: Example. SELECT CustomerName, ContactName, Address FROM Customers WHERE Address IS NULL