Database changes can affect vital data. In this video, learn how to preserve data integrity using transactions.
- [Instructor] It's easy to make mistakes…when you edit table data,…so most databases include a transaction system…that lets you verify you want to make your change.…Transactions work by accepting your changes…as temporary input and letting you ask of the user…if they're sure they want to do…what they just said they wanted to do.…If so, access completes the transaction.…If not, it returns the table to its previous state…and discards the change.…I'll demonstrate how to use transactions in this movie.…I have opened the course database…and I have the Customers table open…and we will work with records…that contain the zip code 45454,…and you can see one of those here in Row 7.…
I need to do this in VBA code,…so I'll press Alt F11 to move to the Visual Basic Editor,…click Insert, and then click Module.…I need to fill up pretty much this entire code window,…so I will increase its size…so it is the full size available.…I will also be moving fairly quickly…'cause there is a lot of code to cover…and I won't be using the same spacing…
- Working with macros
- Running a VBA procedure
- Debugging VBA code
- Defining variables, constants, and calculations
- Displaying a calculated result in a message box
- Repeating tasks with loops
- Manipulating database objects
- Adding, editing, and deleting records
- Looking up values in a table
- Automating processes with macros
Skill Level Advanced
What you should know1m 38s
1. Introduction to Visual Basic for Applications
2. Define Variables, Constants, and Calculations
3. Add Logic to Your VBA Code
4. Debug Your VBA Code
5. Manipulate Database Objects Using DoCmd
6. Read and Manipulate Table Data
7. Manipulate a Database Using the Application Object
8. Control Forms and Reports Using the Me Object
9. Automate Processes Using Macros
Next steps1m 7s
- Mark as unwatched
- Mark all as unwatched
Are you sure you want to mark all the videos in this course as unwatched?
This will not affect your course history, your reports, or your certificates of completion for this course.Cancel
Take notes with your new membership!
Type in the entry box, then click Enter to save your note.
1:30Press on any video thumbnail to jump immediately to the timecode shown.
Notes are saved with you account but can also be exported as plain text, MS Word, PDF, Google Doc, or Evernote.