I have a textbook in java/db:mysql/jsp that in code files have in databases chapter a file webhomecoverdb.ddl, with sql statements modify db/tables, wueries, update queries, organized one line each statement, well is any way execute these statements at once in localhost(jsp/mysql/windows)?

Hi, lse.

You can write all your SQL statements in a text file and feed the file to MySQL in a few ways:
MySQL :: MySQL 5.1 Reference Manual :: 4.5.1.4 Executing SQL Statements from a Text File

this mean the file must be text, but file extension does not matter?

There are two ways of executing a file containing either passing in the file name at the command line:

mysql < filename

or if you are already in mysql using

source filename

the filename can have any type of extension but having a standard naming convention for your files helps later on understand what the file actually is used for. The typical standard is .sql