MySQL中的这个错误是什么意思？

Question

I am using the Zymic Database Uploader v1.1 to upload my XAMPP/MySQL database to zymic database. I followed the instruction carefully until I got this error.

Error at the line 27: ) ENGINE=MEMORY DEFAULT CHARSET=latin1 COLLATE=latin1_general_ci MAX_ROWS=15000; 

Query: CREATE TABLE `bmf_chatting` (
`usr_id` int(11) NOT NULL,
`usr_name` varchar(255) collate latin1_general_ci NOT NULL,
`chatto` int(11) NOT NULL,
`timestamp` int(11) NOT NULL
) ENGINE=MEMORY DEFAULT CHARSET=latin1 COLLATE=latin1_general_ci MAX_ROWS=15000;


MySQL: Table 'bmf_chatting' already exists

This happened while I was Processing/Importing the database into Zymic but it stopped on error. I have no database yet in my zymic and I have no duplicate table 'bmf_chatting'.

I thought it will be a simple export/import. :(

Answer 1

Check your dump file, if this table didn't get exported twice for whatever reason.

Also make sure, to drop all tables (and maybe the entire database) before you retry with you import. Whatever tables are created above this one, have already been created.

Answer 2

It sounds like you had a table called bmf_chatting in MySQL before and it was improperly deleted (the files were probably deleted without dropping the database).

Try running a drop database query before your create query.