2012年5月28日 · If the icon is a small key, that column belongs to the primary key, otherwise the icon is a blue diamond or a white diamond. A blue diamond indicates the column has NN set. To add or remove a column from the primary key, double-click the icon.

2017年12月6日 · I'm trying to restart mysql (a whole different question), MySql is definitely installed (version 14.14), and from what i gather i SHOULD be seeing an icon for it toward the bottom of my System Preferences panel, but it's not there.

2018年3月3日 · Actually i'm using mysql Ver 8.0.23 I had created the both Database and the Table, without Altering them : mysql> CREATE DATABASE tp2; Query OK, 1 row affected (0.30 sec) mysql> INSERT INTO tweetsRep(username, content) VALUES ('ibrahim', '🤣 oh my god'); Then after select, i thing it just worked fine !

2013年7月9日 · I'm new to sql and for some reason, the arrow symbol ( -> ) that I am used to seeing in teh command line, which mean it is ready for input, is now displayed as ( '> ) and it does not accept commands.

2014年8月9日 · If the icon is a small key, that column belongs to the primary key, otherwise the icon is a blue diamond or a white diamond. A blue diamond indicates the column has NN set. In addition to the text above, a red diamond indicates a Foreign Key association.

2009年9月8日 · I don't know DBDesigner4, but I'm sometimes using MySQL Workbench. It allows you to do modelisations using UML diagrams ; so, I suppose the symbols are quite close to those generally used with UML. Searching about UML might get you some helpful answers ; for instance, taking a look at those pages :

2013年12月5日 · In phpMyAdmin it's really hard to see which column has been assigned PK. If base on the color of icon, it's doesn't make sense because I assume column with data type text have a grey icon.

2012年5月24日 · Check MySQL log file Click wamp icon>MySQL MySQL log. Check the last lines of the file. If you see: [ERROR] Can't start server: Bind on TCP/IP port: No such file or directory [ERROR] Do you already have another mysqld server running on port: 3306 ? [ERROR] Aborting. Open Administrative tools of windows go to services search and stop MySQL service.

2019年11月26日 · Make sure that MySQL service appears in services.msc and note down its name (MySQL, MySQL57, or similar). Create a shortcut on desktop using the following as location of the item: %comspec% /c "net start mysql || pause" Once the shortcut is created, you can change its name and/or icon.

2016年2月28日 · As of release 5.5.3 utf8mb4 is fully backwards compatible with utf8. If you are working with an existing database look for the MySQL configuration file and change instances of 'utf8' to 'utf8mb4' accordingly.