I just read online that MariaDB (which SQLZoo uses), is based on MySQL. MariaDB(MySQL)ãã¢ããã°ã¬ã¼ããããæä½ã£ãããã°ã©ã ã§DBã¸ã®INSERTã失æããããããªã¨ãã¯ç¾å¨ã®SQL_MODEããã§ãã¯ãã¾ããããMariaDBã®ããã©ã«ãã®SQL_MODEãå¤æ´ã«ãªã£ã¦ããå¯è½æ§ãããã¾ããâ» This is also intended only for testing, and should be removed before moving into a production environment. MySQL ã MariaDB ã§ä»¶æ°ãåå¾ããéã« COUNT(*) ããã使ç¨ããã¨æãã¾ããã件æ°ãå¤ããªãã¨åå¾ã«ãæéããããããã«ãªãã¾ãã以ä¸ãé«éåããæ¹æ³ã«ã¤ãã¦ã®åå¿é²ã§ããï¼ä¹±çã»ä¹±æã容赦ãã ããï¼ mysql > select table_name, engine from tables where table_schema = "DBå"; ã¦ã¼ã¶ä¸è¦§ 以ä¸ã®ã¯ã¨ãªã§MariaDBã®ã¦ã¼ã¶ã®ä¸è¦§ãåºåãã¾ãã MariaDB > USE test ãã¡ãã®è¨äºã«ããã¨ãmysql-connector-pythonãã®ã»ããå¦çé度ãæ©ããããã ç°å¢æ¬¡ç¬¬ãããããªãããä»åã¯ãã£ã¡ã使ç¨ã ã¤ã³ã¹ãã¼ã«æ¹æ³ # pip install mysql-connector-python python3 ãå©ç¨ããå ´åã¯pip3㧠MariaDB > CREATE DATABASE test; Query OK, 1 row affected (0.00 sec) test ë°ì´í°ë² ì´ì¤ë¥¼ ì¬ì©í©ëë¤. MariaDB / TABLE / ë§ë¤ê¸°, ìì í기, ì´ë¦ ë³ê²½í기 í ì´ë¸ ë§ë¤ê¸° test ë°ì´í°ë² ì´ì¤ë¥¼ ë§ëëë¤. This is also intended only for testing, and should be removed before moving into a production environment. MariaDB [tester]> CREATE TABLE test2(no SERIAL, name TEXT, year INT, time TIMESTAMP) CHARSET=utf8mb4; Query OK, 0 rows affected (0.02 sec) MariaDB [tester]> INSERT INTO test2(name, year) VALUES('TARO''太é' MariaDBã¯MySQLã«å¹æµã»ãããã¯ãã以ä¸ã®æ§è½ãæã£ã¦ããã¨ããè©ä¾¡ãåãã¦ãã¾ãã ä¸è¬ã¦ã¼ã¶ã¼ããè¦ãã使ããããã ä¸è¬çãªã¦ã¼ã¶ã¼ããã¯ãMariaDBã®æ¹ã使ãããããã¨ãã声ãå¤ã ⦠Please do "ALTER create table select * from ...ã§çæããããã¼ãã«ã®ã«ã©ã ã®åã¯ã©ããªãï¼ åºæ¬çã«ã¯selectã®çµæã®ã«ã©ã ãå¼ãã決ã¾ãããã§ããï¼å ¬å¼ããã¥ã¡ã³ãã«è©³ããã¯æ¸ãã¦ããªãããã§ãï¼ MySQL :: MySQL 5.6 ãªãã¡ã¬ã³ã¹ããã¥ã¢ã« :: 13 MySQLã§ããã¼ãã«ãä½æããæ¹æ³ããåå¿è åãã«è§£èª¬è¨äºã§ãããã¼ãã«ãä½æããã«ã¯ããCREATE TABLEæãã使ãã¾ãããã¼ãã«ãä½æããéã«ç¥ã£ã¦ããããããã£ã¼ã«ãã®ãã¼ã¿åã«ã¤ãã¦ãç´¹ä»ãã¦ãã¾ãã MariaDB(MySQL) ã§ä½ææ¸ã¿ã®ã¤ã³ããã¯ã¹ã®å称ã確èªãããå ´åã SHOW INDEX FROM table_name ã使ç¨ãããã¨ãå¤ãã¨æãã¾ãã ããããä¸åº¦ã«å¤æ°ã®ãã¼ãã«ã«ã¤ãã¦ç¢ºèªãããå ´åã«ããã¼ãã«åä½ã§ SHOW INDEX FROM table_name ãå®è¡ããã®ã¯å¤§å¤é¢åã§ãã How can I differ between them? mysql> ALTER TABLE tb1 ADD KEY my_sort2 (c1, c2); mysql> EXPLAIN SELECT c1, c2 from tb1 WHERE c2 LIKE '%100' ORDER BY c1 DESC LIMIT 10\G ***** 1. row ***** id: 1 EXPLAIN ã§ã¯ãMariaDB ãçµåã¤ã³ããã¯ã¹ã使ãããã«ãªããã¤ã³ããã¯ã¹ãæ¢ã«ä¸¦ã¹æ¿ãããã¦ããã®ã§ãããã«ä¸¦ã¹æ¿ããè¡ãå¿ è¦ããªããã¨ã示ããã¦ãã¾ãã MySQLã§ãALTER TABLEãã使ã£ã¦ãã¼ãã«æ§é ãå¤æ´ããæ¹æ³ãåå¿è åãã«è§£èª¬ããè¨äºã§ããå®éã®ãã¼ãã«ã使ã£ã¦ããã¼ãã«åãå¤æ´ãããã£ã¼ã«ãã追å ãããã£ã¼ã«ãã®å¤æ´ãããã£ã¼ã«ããåé¤ãã®4ã¤ã«ã¤ãã¦ç´¹ä»ãã¾ãã ãã¼ã¿ãã¼ã¹ã¸ãã¼ã¿ãç»é²ãã MySQLiã¯ã©ã¹ã®queryã¡ã½ããããããã¯mysqli_queryé¢æ°ä½¿ã£ã¦ããã¼ã¿ãã¼ã¹ã«æ°ãããã¼ã¿ãç»é²ãã¦ããã¾ãã ãã¼ãã«ã«ã¤ãã¦ã¯ãmysqliã§ãã¼ãã«ãä½æï¼CREATE TABLEï¼ãã§ä½æãããã®ã¨åããã¼ãã«ãåæã«ãã¾ãã The results would be sorted by site_id in descending order and written to a file called results.txt.
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