The Simulation Mode is activable next to the “Start Job” button.
![](https://www.fuzible-app.com/wordpress/wp-content/uploads/2020/12/image_2020-12-20_230751.png)
It will make the Job to run in a “read-only” mode : the read operations will be performed, but any “write” operation will be logged in a LOG file :
In a basic File to Database Job, the result would be like this :
![](https://www.fuzible-app.com/wordpress/wp-content/uploads/2020/12/image_2020-12-20_231217-1024x170.png)
As you can see, the “INSERT” statements are only logged in the file, which can be helpful if you simply need some SQL code without using Fuzible 😉
But, in general, the Simulation Mode is a good tool if you want to carefully try your Job, or just give you an idea on how it will behave.