Truthy and Falsy Values

“Truthy” and “Falsy” Values

VBA is quite very loose in what it deems “truthy” and “falsy”. For example, this procedure can produce surprising result: If Me.MyBitField.Value = True Then ‘It is true Else ‘It is false End If At the first glance, it seems expected that if the bit field is set to 1, it would succeed. But in…

Access InStr() function to SQL Server equivalent

What is the SQL Server equivalent to Access InStr() function? TargetField: String expression being searched SearchValue: String expression being sought StartPosition: Starting position for each search (optional) Access SQL InStr(TargetField, SearchValue) InStr(StartPosition, TargetField, SearchValue) SQL Server CHARINDEX(SearchValue, TargetField) CHARINDEX(SearchValue, TargetField, StartPosition)

Access Web Apps

Access Web Apps to be retired

It was announced that Access Services is going to be retired. Details of the announcement may be found here: Updating the Access Services in SharePoint Roadmap. Additional timeline information along with possible methods for exporting your data out of an Access web app may be found here: Access web apps no longer supported. While these articles…

Minimizing stateful code

First we need to define what a state is. A state means that the object has variable(s) that may cause it to behave differently, depending on the content of the variables. As an example, the Forms collection is stateful: Forms(“SomeForm”).Visible = False This is legal code and will compile but we can’t be assured that…

Use properties instead of constant or magic numbers

A common programming mistake is to hard-code literals that corresponds to some property. That is particularly true with certain controls like tab controls & pages. The tab control exposes a Value property that indicates the current tab and the pages contains a PageIndex property that indicates its position in the tabs of the control. Thus,…

Access 2003

Microsoft Access 2003 Language Reference [Access 2003 VBA Language Reference]

This reference contains conceptual overviews, programming tasks, samples, and references to guide you in developing solutions based on Microsoft Access. The reference contains the following sections: What’s New: Provides a list of new members by object and in alphabetical order. Concepts: Provides important concepts for developing custom Access solutions. Reference: Provides reference materials for the Access…

new table

Creating a Make Table Query

Before we create the Make Table Query, you might like to create a new blank database file. This is so we have a separate database into which we can paste the new table from the query. In this exercise I have called it HistoricData.accdb. Here is the procedure to create a Make Table Query: Open…

MODULE LEVEL VARIABLES

Module level variables

It is common to create a big wall of declaration in a module such as this: Private strCompanyName As String Private dteOrderDate As Date Private lngOrderID As Long Private objEmail As Object Private objOutlook As Object While the code will compile and work fine, the discoverability and naming of the module level variables does become…

Access NZ() function to SQL Server equivalent

What is the SQL Server equivalent to Access NZ() function? Access SQL NZ([Event Timestamp]) SQL Server Equivalent COALESCE([Event Timestamp],0) ISNULL([Event Timestamp],0) * do not confuse this with the Access isnull() function.

“Too Few Parameters” error fix

Symptoms Whenever you run a SQL statement you get a “Too Few Parameters, expected X.” Cause Most common cause is misspelling or missing fields in the SQL statement. Resolution Check the SQL statement. If necessary, copy and paste to an Access query and test in the query to get it to highlight which part of…