Transactions, Dynamic Temp Tables, Nav Subform

Welcome

Welcome to Microsoft Access Developer Level 49, brought to you by Access Learning Zone. I'm your instructor, Richard Rost.

This course covers using transactions in Microsoft Access to ensure data integrity, handle errors, and roll back changes when needed. You will learn to process orders with composite keys, prevent duplicates, and maintain consistency.

We will also explore dynamic temporary tables to improve form loading times and create a button navigation subform for seamless record management and integration.

Resources

• Full Course Lessons Page
• Course Topic Outline

Topics Covered

In Lesson 1 we will learn how to work with transactions in Microsoft Access, focusing on ensuring data integrity and handling errors effectively with DBFailOnError. You'll learn how to initialize and use a workspace, begin and commit transactions, and roll back if needed. We'll explore how to execute SQL commands using db.Execute for efficiency and how to handle errors gracefully without breaking your code. We will demonstrate how transactions ensure all-or-nothing execution, akin to a bank transfer's reliability.

In Lesson 2 we will learn how to handle more complex transactions using an order processing example. You will learn how to add an order and multiple items while ensuring that no duplicate items are included, using a composite key to enforce unique product entries. Along the way, I'll demonstrate setting up transactions so that if any item fails to process, the entire order will be rolled back, ensuring data integrity.

In Lesson 3 you'll learn how to significantly improve form loading times in split databases using a practical approach with temporary tables. I'll guide you through creating a dynamic function that generates temporary tables to store read-only data, such as customer lists, enabling faster form loads without constantly querying a remote server. This process is both flexible and table agnostic, meaning it works across various table setups. Experience the immediate difference as I demonstrate the conversion of slow-loading forms to ones that open almost instantaneously.

In Lesson 4 I will show you how to create a drop-in navigation subform featuring a series of buttons for navigating records. We'll cover how to utilize the recordset properties to display the current record's position and implement navigation buttons using code. The tutorial guides you on integrating these buttons into a subform, which can then be effortlessly added to any parent form without the need for additional VBA code. Learn how to set up automatic record count updates and ensure smooth navigation across different forms by simply configuring a few properties.

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Keywords

microsoft access, access 2016, access 2019, access 2021, access 365, ms access, #msaccess, #microsoftaccess, #help, #howto, #tutorial, #instruction, #learn, #lesson, #training, #database, Transactions, DBFailOnError, Rolling Back Changes, Ensuring Data Integrity, Using Workspaces, db.Execute, Order Processing, Composite Keys, Avoiding Duplicates, Handling Failed Entries, Dynamic Temporary Tables, Faster Form Loading, Reducing Queries, Split Database Performance, Button Navigation Subform, Recordset Properties, Automating Record Counts, Parent Form Integration, Smooth Navigation