999999.9' /**/union/**/all /**/select /**/cast...
select cast (2000 as type of quint) from rdb$database select cast (2000 as int) from rdb$database.
MySQL :: MySQL 8.0 Reference Manual :: 12.20.1 Aggregate (GROUP...
As of MySQL 8.0.13, SELECT COUNT(*) FROM tbl_name query performance for InnoDB tables is optimized for single-threaded workloads if there are no extra clauses such as WHERE or GROUP BY. InnoDB processes SELECT COUNT(*) statements by traversing the smallest available secondary...
The SQL Injection Knowledge Base | Tables and Columns
AND(SELECT COUNT(*) FROM (SELECT 1 UNION SELECT null UNION SELECT !1)x GROUP BY CONCAT((SELECT table_name FROM information_schema.tables LIMIT 1),FLOOR(RAND(0)*2))).
Решение задач по sql injection с сайта alexbers.com/sql / Хабр
Решение: select * from users where id='12'. а ссылка будет выглядеть вот так
Replacing NULL with 0 in a SQL server query - Stack Overflow
I have developed a query, and in the results for the first three columns I get NULL. How can I replace it with 0?
SQL Инъекции | Page 5 | ANTICHAT - Security online community
...FLOOR(RAND(0)*2))x FROM INFORMATION_SCHEMA.CHARACTER_SETS GROUP BY x)a)
MySQL CONCAT() Function | Definition and Usage
SELECT CONCAT("SQL ", "Tutorial ", "is ", "fun!") AS ConcatenatedString; Try it Yourself ». Definition and Usage. The CONCAT() function adds two or more expressions together. Note: Also look at the CONCAT_WS() function. Syntax.
CAST and CONVERT (Transact-SQL) - SQL Server | Microsoft Docs
SELECT CAST('abc' AS varchar(5)) COLLATE French_CS_AS. Truncating and rounding results. When converting character or binary expressions (binary, char, nchar, nvarchar, varbinary, or varchar) to an expression of a different data type, the conversion operation could truncate the output data...
SQL Injection Cheat Sheet | Netsparker
SELECT * FROM members WHERE username = 'admin'--' AND password = 'password' This is going to log you as admin user, because rest of the SQL query
SQL SELECT « Язык запросов SQL
SELECT pname FROM posts UNION SELECT dname FROM departments; С помощью UNION мы объединяем два запроса SQL SELECT и выводим их