Yes you can!
We’ll show you how you can actually use the same production database for multiple LightSwitch applications. We’ll also show you how you can share common tables. And we’re not talking by OData endpoints here.
Great for situations where you are limited to the number of databases, not to mention simplifying maintenance.
Check it out on our tutorial site… lightswitch.codewriting.tips – with videos!
Blog of an IT Guy 
love the ideas and the work how can i register in lightswitch.codewriting.tips it is asking for user name and password
Love your work and ethic. Enjoying the new lswires ease of use. Thanks from a small developer who loves Lightswitch
Awesome!
Your Blog as well as LightSwitch.CodeWriting.Tips provides our small developer team very
rich Know-how, resources and real life application valuable for creating compelling client
application.
Salutations,
Denis
Thanks Denis… goal of this site and my experiences was to help others use this amazing tool.