MS Access is a highly flexible, robust, and reliable database program. Microsoft Access is the leading relational database management system in the world. We are a Microsoft Access developer company creating database applications for your business.
SQL Server is an enterprise relational database management system from Microsoft. We use SQL Server as the database server for data storage and data retrieval to and from Microsoft Access as well as other software applications, like ASP.NET and Azure.
Microsoft's application framework for web development produces dynamic web pages. ASP.NET provides web programmers with a platform for building dynamic web sites, web applications (web apps), and web services that require a web solution.
MS Azure is Microsoft's cloud computing service. It is used for development, testing and deployment as well as managing software applications through a global network data centers managed by Microsoft. Azure now features SQL Server called Azure SQL.
We Are Your Microsoft Access Database Experts
The Best Microsoft Access Database Solutions owner, consultant, and principal programmer is Alison Balter - a recognized expert Microsoft Access consultant. Alison is the author of 15 Microsoft Access training books and videos. She is a frequent guest speaker at MS Access conferences and has developed hundreds of applications for businesses of all types.
We know your business data is important; we listen to your concerns, ask questions, and gather information from all stake holders. We discuss your needs and requirements for your database. We find out what you want, why you need various features so we can obtain as much information as possible. Once we have the information we need, we work with you to design the proper database architecture, plus the dashboards, the questions (queries), forms, and reports you need for an excellent database system.
Your data is important to your business and you need both to enter and retrieve data rapidly. The data stored in your company's database must be clean, secure, and allow for maximum usage. Our Microsoft Access developer team will create your Microsoft Access database for optimum efficiency with all the features you need. After we program your MS Access and SQL Server database you will have the capacity to manipulate your data so you get the information you need for every day activities and for making critical business decisions.
We also create websites designed for speed to display your data accurately, using ASP.NET technology. Fast, secure, and robust, our ASP.NET web sites and web applications give you true business tool for finding and displaying information dynamically on the web.
Microsoft Access front-end and SQL Server back-end database
Access Forms Development
Access data entry form connecting to SQL Server back-end database
ASP.NET website with SQL Server back-end database
MS Access Report created with SQL Server database
Client Comments About Our Work
Sheldon Bloch, Oil and Gas Company
Alison from MS Access Solutions has provided both training and mentoring services to us over the past several years. Our developers use Alison Balter's books on programming with Microsoft Access as a desk reference. They have provided our staff members with much-needed training in Visual Basic, client/server development, SQL Server, and Microsoft Access. This has helped us to ensure that our employees can properly keep up with the ever-changing technologies. MS Access Solutions has also provided our staff with mentoring on an as-needed basis, providing expertise that helped our in-house programmers to overcome various hurdles. More Reviews
Lisa Dosch, Motion Picture Editors Guild - Local 700
Alison Balter at MS Access Solutions developed the application that helps us to properly service all of our members. This program handles billing, payments, tracking of jobs worked, available list, and other important data about our members. The system automates many tasks that were previously performed manually, allowing our employees to more cost-effectively use their time. This client/server system is used by employees in our Riverside CA and New York offices. MS Access Solutions and their staff worked with us to develop the necessary specifications and design documents, and then programmed, tested, and implemented the application throughout our organization. More Reviews
When you need a truly expert Microsoft Access database development company to design and develop your mission critical custom database - Contact MS Access Solutions.
Call MS Access Solutions at (323) 285-0939 For Complimentary Consultation
Validation Rule: Controlling What the User Enters in a Field
The Default Value property suggests a value to the user, but the Validation Rule property actually limits what the user can place in the field. The user cannot violate validation rules; the database engine strictly enforces them. As with the Default Value property, this property can contain either text or a valid Access expression, but you cannot include userdefined functions in the Validation Rule property. You also can’t include references to forms, queries, or tables in the Validation Rule property.
If you set the Validation Rule property but not the Validation Text property (covered in the next section), Access automatically displays a standard error message whenever the user violates the validation rule. To display a custom message, you must enter your message text in the Validation Text property.
If you plan to upsize your Access database to a database server, you should be aware that you cannot always easily export validation rules to the server. You must sometimes re-create them using triggers on the server. No Access-defined error messages are displayed when a server validation rule is violated. Your application should be coded to provide the appropriate error messages. You can also perform validation.
Add the following validation rules to the fields in your table. (Access will place quotation marks around the state abbreviations as soon as you tab away from the property.)
State: In (CA, AZ, NY, MA, UT)
ContactDate: <= Date()
CreditLimit: Between 0 And 5000
1. Switch to Datasheet view. If the table already contains data, when you save your changes, the message shown in Figure 2.10 appears.
FIGURE 2.10 The message box asking whether you want to validate existing data.
If you select Yes, Access tries to validate all existing data using the new rules. If any errors are found, you’re notified that errors occurred, but you aren’t informed of the offending records (see Figure 2.11). You have to build a query to find all the records violating the new rules.
If you select No, Access doesn’t try to validate your existing data, and you aren’t warned of any problems.
FIGURE 2.11 A warning that all data did not validate successfully.
2. After you have entered Datasheet view, try to enter an invalid state in the State field; you should see the message box displayed in Figure 2.12. As you can see, this isn’t the friendliest message, which is why you should create a custom message by using the Validation Text property.
FIGURE 2.12 The message displayed when a validation rule is violated, and no validation text has been entered
Validation Text: Providing Error Messages to the User
Use the Validation Text property to specify the error message users see when they violate the validation rule. The Validation Text property must contain text; expressions aren’t valid in this property.
Add the following to the Validation Text properties of the State, ContactDate, and CreditLimit fields:
State: The State Must Be CA, AZ, NY, MA, or UT
ContactDate: The Contact Date Must Be On or Before Today
CreditLimit: The Credit Limit Must Be Between 0 and 5000
Try entering invalid values for each of the three fields and observe the error messages.
This material orginally appeared in Alison Balter's book Mastering Microsoft Office
Access 2007 Development. Reprinted here by author's permission.
When you need a Microsoft Access programmer for your Riverside CA business, phone call MS Access Solutions at (323) 285-0939. We have over 25 years experience in Microsoft Access programmer solutions. We create Access database applications for all sectors, consisting of hospitals, government companies, the U.S. military, universities, agriculture, workers services, and insurance provider. We can take care of the most advanced as well as complicated Access and also SQL Server database programming for your business as well as smaller projects, like fixing damaged Access database forms, MS Access reports, Access macros, and VBA code.