Write access query with vba

Written by Christos Samaras on Sunday, 6 October at Some days after that post, I received some e-mail requests about doing the same, but for Access databases. More precisely, two blog readers Josh and Maria asked me to write two different VBA codes for running Access queries directly from Excel. In the next paragraph, you will find two VBA code snippets that can be used from Excel to retrieve data from an Access database.

Write access query with vba

If you came to Access after using Excel you may have noticed that Access seems a little short on calculating power. Many users get this first impression of Access.

Excel is principally a tool for calculating, whereas the prime function of Access is the storage and retrieval of data. Excel has a vast library of built-in functions.

Access also has a sizeable collection of functions but smaller than that of Excel. One reason for this is that much of the calculation done in Access is by means of queries. Queries are written in a standard language called SQL Structured Query Language which is used by all database write access query with vba.

write access query with vba

Access's built-in functions have to be compatible with SQL, which tends to limit its calculating power. Sooner or later most Access users find that Access doesn't have a built-in function to do the calculation they want.

What can you do? Once again VBA comes to the rescue. If Access doesn't have the function you need, you could try writing one of your own. This tutorial shows you how to build and use a custom function and shows you how to use it in forms and queries.

The tutorial is suitable for Access versions 97, and XP Microsoft introduced the Visual Basic Editor, a separate program that runs from within Access, with Access In some places I have provided separate instructions for Access Creating a New Custom Function Step 1: Open a New Module The first step is to open a new code module.

A module is simply a container for a collection of VBA code. Access 97 opens a new code module window you will notice that the toolbar and menus change to provide the appropriate VBA editing tools.

You can open them from the View menu if necessary.

How to execute a query in ms-access in VBA code? - Stack Overflow

It is a good idea to give your module a meaningful name. You can keep all your code in one module or organise it in different ones - it's up to you. I have spent so much time searching through modules named Module1, Module2 etc. Click on the module name in the Project Explorer pane, then change "Module1" in the Properties pane to your chosen name usual object naming rules This one will contain functions so I've named it "Functions".

If you are working in Access 97 you can name now by clicking the Save button and typing your chosen name in the dialog box. Alternatively you can wait until you close and save your finished module, when you will be prompted for a name.

Enter a Name for the Function I'll start with an easy one! This function calculates a person's age from their date of birth. In the code window type: What does it mean? The keyword Public makes the function available outside its host module.Advanced Access Export Function The user enters a file path for output, then clicks on the command button to start the Access VBA export function.

If the output file already exists, the user is prompted to either overwrite the existing file or replace it. MsgBox "Missing query name or SQL string.", vbCritical + vbOKOnly, "Error" Exit.

Access 97 opens a new code module window (you will notice that the toolbar and menus change to provide the appropriate VBA editing tools). In Access /XP the Visual Basic Editor window opens with a new module named Module1.

Jun 27,  · As for the code I reused SQL code from the Access queries in the Excel VBA code module (copy-paste).

Access Tips: Access and SQL Part 2: Putting VBA and SQL Together

Note that minor modifications of VBA code can be necessary. The most important modification was that SQL criterion (eg.

Jan 07,  · First, I create a Query in Access, and save it as "qryCustom" 2, Now, I wish to read the Query "qryCustom" SQL Text in VBA code, then I can modify the SQL Text for other purpose.

3, If need, I wish I can update the original Query with new SQL Text. Constructing an SQL statement in VBA can be tricky, because there are often several areas of Access needed to construct the string.

write access query with vba

For example, proper SQL syntax, proper VBA syntax, and proper referencing of controls are three common points. I want to do the select query in order to turn a customer name into a customer id so that I can have a proper reference to my table of customers from my table of purchases.

Purchases come from a text file that I'm processing in VBA.

VBA Tips: Build Custom Functions for Your Access Applications