... data access layer (DAL) Module is the second of two modules that focus on the DAL: Module 8, The Nontransactional Data Access Layer and Module 9, The Transactional Data Access Layer. ” The DAL ... designs for it Module is the second of two modules that focus on the data access layer (DAL) In Module 8, The Nontransactional Data Access Layer, ” you learned about data retrieval In this module, you ... Module 9: The Transactional Data Access Layer ! Lab 9: The Transactional DAL Preparation Tasks To prepare for this module, you should: ! Read all of the materials for this module ! Complete the...