You can also export configuration files and MySQLįrom "Setting" it is possible to call up a window that can make various settings easier You can edit various setting files with a single shot. In addition, SQLiteManager can use both "username" and "password" as "admin" "data" "guest". MySQL's default user name is "root" and password is "vertrigo". When you click it, a menu is displayed and you can start and stop the server freelyĪlso accessible to PhpMyAdmin etc in one shot. I will reside in this way in the task tray Since shortcuts are available on the desktop, click it to start it Also, because the installer is in Japanese, it is safe. This " VertrigoServ".įor each of these software, it is very easy to set up so that control-panel-like items that can easily change settings can be called from the task tray in one shot. It is developed with open source that Apache / PHP / MySQL / SQLite / SQLiteManage / PhpMyAdmin / Zend Optimizer can be installed in Windows all in one. For any other action specify exactly the privileges you need and limit the accessibility of the user as Pascal has suggest below.17:27:00 "VertrigoServ" which can install Apache / PHP / MySQL etc in Windows on one shot If you need an administrative user, use root, and leave it on localhost. Mysql> CREATE USER IDENTIFIED BY 'some_pass' Īlthough as Pascal and others have noted it's not a great idea to have a user with this kind of access open to any IP. Mysql> GRANT ALL PRIVILEGES ON *.* TO WITH GRANT OPTION You could try adding a new administrator account: mysql> CREATE USER IDENTIFIED BY 'some_pass' Stack Overflow is here to show you how to do software development work, not to do all the work for you. Note to commenters: If you want another benchmark with a different version of MySQL, a different dataset, or different table design, feel free to do it yourself. KEY `LastEditorUserId` (`LastEditorUserId`),ĬONSTRAINT `posts_ibfk_1` FOREIGN KEY (`PostTypeId`) REFERENCES `posttypes` (`PostTypeId`) KEY `AcceptedAnswerId` (`AcceptedAnswerId`), `FavoriteCount` int(11) NOT NULL default '0', `CommentCount` int(11) NOT NULL default '0', `AnswerCount` int(11) NOT NULL default '0', `Title` varchar(250) NOT NULL default '', `LastActivityDate` datetime default NULL, `LastEditorUserId` bigint(20) unsigned default NULL, `OwnerDisplayName` varchar(40) default NULL, `OwnerUserId` bigint(20) unsigned NOT NULL, `ViewCount` int(11) NOT NULL default '0', `ParentId` bigint(20) unsigned default NULL, `AcceptedAnswerId` bigint(20) unsigned default NULL, `PostTypeId` bigint(20) unsigned NOT NULL, `PostId` bigint(20) unsigned NOT NULL auto_increment, Here's the DDL for my Posts table: CREATE TABLE `posts` ( | 1 | SIMPLE | p2 | ref | PRIMARY,PostId,OwnerUserId | OwnerUserId | 8 | const | 1384 | Using where Using index Not exists | | 1 | SIMPLE | p1 | ref | OwnerUserId | OwnerUserId | 8 | const | 1384 | Using index | | id | select_type | table | type | possible_keys | key | key_len | ref | rows | Extra | The EXPLAIN analysis shows that both tables are able to use their indexes: +-+-+-+-+-+-+-+-+-+-+ WHERE p2.postid IS NULL AND p1.owneruserid = 20860 ON (p1.owneruserid = p2.owneruserid AND p1.postid < p2.postid) Now produce the same query result using my technique with LEFT JOIN: SELECT p1.postid | 2 | DERIVED | pi | index | NULL | OwnerUserId | 8 | NULL | 1151268 | Using index | | 1 | PRIMARY | p1 | eq_ref | PRIMARY,PostId,OwnerUserId | PRIMARY | 8 | p2.maxpostid | 1 | Using where | ON (m1.name = m2.name AND m1.id | ALL | NULL | NULL | NULL | NULL | 76756 | | I write the solution this way: SELECT m1.* SELECT * FROM ranked_messages WHERE rn = 1 īelow is the original answer I wrote for this question in 2009: SELECT m.*, ROW_NUMBER() OVER (PARTITION BY name ORDER BY id DESC) AS rn With this standard syntax, we can write greatest-n-per-group queries: WITH ranked_messages AS ( MySQL 8.0 now supports windowing functions, like almost all popular SQL implementations.
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