To create a script of your database model, choose the
Export item from the
File menu. You may export a script to alter an
existing database or create a new database. The script to create a
database is similar to the one created using the
If you choose to create a database, there are several export options available.
Select the File, Export, Forward Engineer SQL CREATE Script menu item to start the Forward Engineer SQL Script wizard. The following figure shows the first page of the wizard.
The SQL Export Options displays the following facilities:
Output SQL Script File
To specify the output file name, enter it into the Output SQL Script File field, or use the Browse button to select a file. If this field is left blank, you will be able to view the generated script, but it will not be saved to a file.
Generate DROP Statements Before Each CREATE
Select this option to generate a statement to drop each object before the statement that creates it. This ensures that any existing instance of each object is removed when the output is executed.
Omit Schema Qualifier in Object Names
Select this option to generate unqualified object names in SQL statements.
Generate Separate CREATE INDEX Statements
Select this option to create separate statements for index
creation instead of including index definitions in
CREATE TABLE statements.
Add SHOW WARNINGS after every DDL
Select this option to add
statements to the output. This causes display of any
warnings generated when the output is executed, which can be
useful for debugging.
Do Not Create Users. Only Export
Select this option to update the privileges of existing
users, as opposed to creating new users. Exporting
privileges for nonexistent users will result in errors when
you execute the
CREATE script. Exporting
users that already exist will also result in an error.
Generate INSERT Statements for Tables
Select this option if you have added any rows to a table. For more information about inserting rows, see Section 22.214.171.124.8, “The Inserts Tab”.
Clicking Next takes you to the SQL Object Export Filter page where you select the objects you wish to export.
Precise control over the objects to export can be fine tuned by clicking the Show Filter button. After the objects to export have been selected, it is possible to reduce the expanded panel by clicking the same button, now labeled Hide Filter.
After selecting the objects to export, click the Next button to review the script that has been generated.
You may return to the previous page using the Back button.
The Finish button saves the script file and exits. You can then use the saved script to create a database.
The menu item for altering a schema, Forward Engineer SQL ALTER Script..., is used for updating a database that has been redesigned within MySQL Workbench. Typically, this option is used when the SQL script of a database has been imported into MySQL Workbench and changed, and then you want to create a script that can be run against the database to alter it to reflect the adjusted model. For instructions on importing a DDL script, see Section 126.96.36.199, “Reverse Engineering Using a Create Script”.
Select the File, Export, Forward Engineer SQL ALTER Script menu item to start the Forward Engineer an ALTER Script wizard. You will be presented with the first page showing the available options.
This first page enables you to select an SQL script and compare it with the model currently in MySQL Workbench. The difference between the two models will be used to create an alter script that can be used to modify the target schema to match the model held in MySQL Workbench. To view the script generated, rather than saving it to a file, leave the Output File field empty.
The script selected as the Input File must use full schema
qualifiers, such as
MySQL Workbench cannot generate a useable alter script.
Clicking Next brings you to the Review SQL Script page.
Here you can review and change the alter script that will be
generated. Make any changes you wish and, if you are happy with
the changes, save the
ALTER script to file
using the Save to File... button. You can
also click the Execute button to tell
MySQL Workbench to write the script to the previously specified
The generated script can then be used to update the database.