With themost recent versions of MS Access 2016, it no longeroffers support for Access Data Project (ADP) files butfor the more seasoned releases it willstill continue to support ADP’s. End-users will find it imperative to learn about the alternatives they could use whenplanning to update the application.
Beforerecommending any options, there are certain basics you need to understand first.
Why Access is never again supporting ADP ?
The primary reason ADP willnever again be supported by Microsoft Access is due SQL Azure will need to undergosubstantial changes to support ADP file formats. Even thoughADP’s are of great use when working with SQL Server on-premises, that may not generally be the situation. Noting this, Access has quit supporting ADP’s altogether. It has simultaneouslylaunched an application that can be used for creating web-based Access applications which likewise utilises SQL Server as well as on the cloud. Continue reading “MS Access Data Projects: 4 Guidelines to Help You Move On”
Microsoft Access Database, like with many of the other Microsoft applicationsis very versatile and can be a valuable asset for businesses (of all scopes). However, unlike MS Word and MS Excel which are normally used in the workplace for the day to day and general running of the business workflowand then can be also used to support MS Access ata level thatcomplements other systems, Microsoft Access Database is the kind of application that takes office applications to the next level and can be used in various ways depending on the type of business and its needs.
If you are regular visitor to this site or have used this application, you will know Access primarily used to store information; data in a structured manner. While in most cases fort small to medium businesses, a stand-alone or shared database is manageable and can even be scaled up and can be connected to something like SQL Server or Azurefor the larger organisations or a level of complexity that a stand-alone may struggle to provide.
There are a few operations and functions that you may wish to carry out in anAccess application that might not be executedon a regular basis yet will need to be completedat certain times or events especially while in the development phase and before it’s being released to a live environment.
One task maybe the need to permanently delete an Access database and removing it from the WindowsRegistry entries are just two examples.
Continue reading “Microsoft Access Database: How To Completely Remove A Database ?”
A memo field can store a huge quantity of information, allowing up to 65,536 characters, with different choices. In the most recent release of Microsoft access database, it can store up to 1 GB of characters and enables rich text formatting. However, it is often advised to avoid the use of memo fields for grouping in Access.
In the 2009 edition of Microsoft access database and including the recent version, there was a bug in which the memo field would show incorrect and erroneous characters under specific circumstances. If the user used the‘GROUP BY’ query on a memo field or if the query contains a JOIN on un-indexed records, the memo field would display incorrect results. Microsoft Access would just show random characters in place of the contents of the given memo field.
Microsoft access database fundamentally truncates the memo and the most widely known factors that cause the truncation are aggregation, uniqueness, formatting, and union queries. For instance, a union query that joins the records from various tables and then de-duplicates them. It analyses the memo field which then results in truncation.
Why Memo Fields Are Inefficient
The main reason why Microsoft access database does not allow more than 255 characters is that it would hamper the performance to a great extent, as string operations are disk and processor intensive. Some data sources process strings as bytes while some use Unicode so it becomes incompatible. Though it saves the data to the table, still it becomes inefficient in working with the extra data. Continue reading “Why You Should Avoid Using Memo Fields for Grouping in MS Access ?”
Microsoft Access 2016 lets users design their reports with ease and most advantageous way compared to other dedicated reporting tools.
There are various formatting choices that giveflexibility and make reports more efficient. Microsoft Access 2016 has a report Wizard (as a starter point) that walks you through the process of creating a report. The report look and feel will greatly depends on the user’s requirements. The more complex it gets, the higher the degree of customisation is needed.
The greatest strength of any report is in its structure. If the report is informative, it will surely stand out. You can improve your reports by inserting headers and footers, adding logos, and changing colour combinations. In this blog, you will learn how to insert time and date into the header and footer sections of your MS Access report.
Header and Footer Sections
The header section of a document contains significant information and is displayed in the top margin. Like the header, a document’s footer also contains valuable information. The only difference is that it is positioned at the bottom. The information they contain can be of any kind such as date, time, document name, and page number. They are effective add-ons thatmake your documents more organised and looking professional.
It’s surely a tedious task to write the page number for each and every page you finish, not to mention adding the dates. Some reports require a heading and a subheading on every page. By inserting headers and footers, you can avoid the hassle and make your document easier to read. Continue reading “How to Insert Date and Time into the Header and Footer Sections of Your MS Access Report ?”
A split database is created by splitting two Access database files ending up with a ‘Back-End’ and ‘Front-End’ database files.
A ‘Back-End’ Access database normally contains only the data tables while the ‘Front-End’ comprises the remaining database objects such as queries, forms, and reports.
The data that a user inputs in a database object will be stored in the tables that back-end databases hold. Anybody can go through the information available in the front-end database but in order to access the back-end, the user needs to have administrator permission.
Splitting a database can improve its performance, help secure your data, and enables greater availability.
Since both databases have diverse properties, they are also backed up self-sufficiently. Front-end databases, which containminor types of data, use up less space.
Because of that, it takes a smaller amount of time to create the backups. But that’s the not the case with back-end databases as they hold all the data. For that reason, it is imperative to generate regular backups to avoid incidents of corrupted Access databases.
Creating a backup for Back-end Databases
Before generating the backup, make sure to inform all users on the system about it. Creating a backup requires exclusive access to all the database files. This process restricts users from using the database. Continue reading “How to Back up Your Split Database in Microsoft Access ?”
In Microsoft access database, you might want to perform operations on not just one single record, but on a group of records. You can simply create fields that perform operations per row or on every record. But what happens when you perform calculations on a group of records? This is where Aggregate queries come in handy.
An Aggregate query lets you carry out calculations on record groups rather than perform individual operations, and because of that, it is also referred to as Summary query. It considers the total, subset, or gross amount of records.
In performing calculations on a group of records, there are numerous operations you can follow. Some of these operations are explained below.
- Sum– One of the most familiar and simplest ways of doing operations on records is using the Sum function. This adds (or sums) all the values contained in the field.
- Average– If you need to calculate the mean, you can use the Average function. This calculates the average value for all values in the field.
- Min– This is used in finding the lowest value in all field.
- Max– Contrary to Min, this function is used in finding the highest value from the given field.
- Count– This returns the total number of records in a field.
- StDev– The standard deviation function is used to evaluate a population sample represented as a set of values in a specified field on a query.
- Var– This function returns the estimate of the variance for a population sample denoted as a set of values in a designated field on a query.
Continue reading “Aggregate Queries in Microsoft access database”
As a follow up on a recent blog post about Microsoft Access database Append Queries, here’s a sub-note article that we will analyse and investigate when errors can happen relating to a failure of appending records in MS access query
A quick recap: An Append MS access query is used when a user amends a few records to an existing table, typically from different sources. Append MS access query chooses new records from different sources of data and copies them to the table in database. It is useful in joining numerous records at once and it also enables the user to refine the selection with specific criteria. Users can evaluate the selection before replicating it to the existing table.
Issues with Appending Records
Access typically shows a dialog box when the append MS access query is run, expressing the possible explanations for its failure. Errors might be due to the mismatch of field data types or key violations. Apart from that, Lock and Validation Rule violations could also be the reasons.
Let’s discuss each issue individually and how we can solve these errors.
Type Conversion Failure
This is the most widely recognised error a user-experiences when appending and it happens due to the field data-type mismatch. Access commonly encounters issues if the data is not properly formatted or whenever there are missing field types. For instance, if a user tries to import data in a Numeric field such as date or age, and the data contains records like ‘Unknown’, then Access might display it as type conversion error. The problem could also arise if the date is not in the local regions standardised format (namely USA versus UK/EU dates). Continue reading “Access Database Append Query – Dealing with Common Errors When Executing Them”
In my latest eBook on how to build a Microsoft Access database, I cover a section about planning your database before developers should delve in and implement. Before they know it, it’s too late when they realise how off track they are and now left with potentially a reversing and undoing exercise!
So, to get started on the right track, here’s an extract for your reference…
Reverse Engineering? I’m often asked How do you design a good Microsoft Access database? My simple answer, I Reverse engineer it!
It is a technique that I have used many times and it works very well for me. The process to a good
Microsoft Access database design has nothing to do with Microsoft Access or any other database application.
The methodologies I’ve come across over the years leave me with a lot of questions about “Do the methodologies often discussed really justify the end result?” Continue reading “Planning Tips To Building A Microsoft Access Database”
This article talks about the importance of the Append Query and the appropriate way of creating them in Microsoft access database.
In Microsoft access database and all the other database management systems, queries as the heart of the software system which can execute numerous actions to make your database more systematised and functional. Queries prove to be useful for working on various tasks including returning recordsets in an ordered and filtered way, updating values, editing or deleting data, and even making a new table in the Microsoft access database.
Action Queries can be used for adding, changing, or deleting numerous records from a table, record or field at a click of a button.
The additional advantage of an Action Query is that user can preview their query results in Microsoft access database before running it.
Microsoft access database provides the following types of Action Queries:
Note that users cannot undo an action query and therefore, they must create a backup of the data that they want to update using the query. Continue reading “Creating an Append Query in Microsoft Access”
Tables should be responsive, optimised and efficiently designed for your Microsoft access database.
Databases are all about tables and how they hold and then show the information stored in them. It is vital for them to be flexible, dependable and informative. That’s the reason why it is fundamental to create and assign the appropriate properties to such tables.
The following 8 simple tips will help to plan and build your Microsoft access database tables:
1. Naming of the fields
The name of a field is its identity, so it should give a reasonable idea about the field’s function and data type. Arbitrary and inept name fields make your database pointless and confusing. Microsoft access database allows up to 64 characters for a field name which can contain letters, numbers, and spaces. However, good practice is to not include spaces in the field name as this can cause issues later on for more advanced functionality especially when working with VBA and SQL codes.
2. The use of field properties
Microsoft access database provides you with the option to assign properties to the fields such as format, caption, description, validation rule, and validation text (to name a few). Each property will improve in some cases, performance as well as change the look and feel of data values. This is the first level of changes that can be applied and act as defaults when working with related objects used later on in your design process with the likes of queries, forms and reports. Continue reading “8 Tips to Create Flexible Tables in Microsoft Access”