The databases can not be deleted (Error 41). New databases can be created. What do you think if I delete in the directory data the subdirectory praxis1 (that is the concerning DB)? Maybe then I can create the DB practice1 again? Greeting Norbert...
1) Go to control panel->add/remove programs and remove MySql 2) Go to c:\program files\ and delete the MySql directory 3) Reinstall and select "Standard Configuration" from the Server Instance Configuration Wizard. Do NOT choose "Detailed Configuration" ...
Since you can identify that creating tables worked prior to you running your C++ app, and doesn't work afterwards, then that seems pretty conclusive that your exercise has corrupted something. You may have to uninstall MySQL, physically delete the data directory, and then reinstall. If you have...
C:\program directory\mysql You can choose another location but it might have adverse effects I'm not aware of at this point. Right click on My Computer in your Start Window Select Advanced and on the next window Environmental variables ...
I would guess that you created an InnoDB table `word` at some time in the past, and then you tried to drop it by manually deleting the "word.frm" file in the data directory. This does not delete the table from the InnoDB tablespace. ...