Статья - SQL-injection, начало - UNION BASED - Codeby.net

CREATE TABLE login ( id INT NOT NULL AUTO_INCREMENT, nickname VARCHAR(30) NOT NULL, login VARCHAR(40) NOT NULL, statement INT NOT NULL, PRIMARY KEY(id) ) 1' union select 1 -- - пишет что количество колонок не совпадает.

SQL ISNULL(), NVL(), IFNULL() and COALESCE() Functions

Suppose that the "UnitsOnOrder" column is optional, and may contain NULL values. The MS Access IsNull() function returns TRUE (-1) if the expression is a null value, otherwise FALSE (0)

SELECT INTO and non-nullable columns - Brent Ozar Unlimited

Select null union all select null union all select null union all. select … into NewTable (ID INT NOT NULL IDENTITY, [other columns here]). With that syntax there’s no hack and you can specify the target table schema inline (including indexes and whatnot).

sql injection "union select null" - CodeProject

MySQL SELECT only not null values | Gang of Coders

SELECT * (that are NOT NULL) FROM table. Mysql is not null with joins and select, insert into, delete & logical operator like or , not.

How the SQL UNION Operator Deals with NULL Values

Select null union select null union select null Both tables have the same column names, and we can see that both tables have NULL values in their respective Age columns in three rows.

mysql - Confusing SQL error in SELECT NULL... - Stack Overflow

SQL-инъекции' union select null, null, null -- / Хабр

inurl index php db information schema as fgbl where 5072 5072...

Forbidden and Not Acceptable Bypass in SQLI - For Begginers...

Union Select Bypassing False The Url