such as:
CREATE TABLE Customers (Customer_id INT NOT NULL PRIMARY KEY...)
Can i write it in an editor, save it as a batch file and than, rather then write the above command, simply run the batch ?
If the answer is positive, can anyone explain me how excactly i do it:
run from inside the ide or outside? Where do i save the file? What extension has the file ? What syntax?
Thanks !

If I understand you correctly, you want to read you SQL from a file. That's simple. Simply put the SQL syntax in a text file using a normal editor. If you have multiple SQL statements, you just need to put a \n character at the end.

Sample

SELECT * FROM table1;
SELECT * FROM table2;

You can use any file extension you like, but I use a .sql naming convention. You can run this at the mysql prompt like....'mysql mydatabasename < mysqlstatements.sql'.

hope this helps...

You can also run the file when connected to the MySQL client as follows:

I'll use your aid !