#error In Access 2003 Query
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Microsoft Access 2003 Query
Constants Database Date/Time Forms Functions Modules/VBA Queries Question/Answer Reports Security Shortcuts Standards Subforms Switchboard Tables Text access 2003 search query boxes MS Access 2003: Handling Divide by Zero errors in queries This MSAccess tutorial explains how to handle divide by zero errors in queries in Access 2003 access 2003 query criteria (with screenshots and step-by-step instructions). See solution in other versions of Access: Access 2007 Access 2003 Question: In Microsoft Access 2003/XP/2000/97, I'm trying to write a formula in a query as follows: [Price]/[Quantity] Most of the times this formula works, but in some cases the [Quantity] field is zero so when the formula divides
Access 2003 Query Criteria Contains
zero by zero, the result comes up as #Error. Is there a way I can tell Access, if dividing by zero, the result is zero? Answer: You can use the iif function in your Access query to handle these cases. We'll demonstrate how to do this with the example below. In this example, we've used the iif function to return 0 if the [Quantity] is 0. Otherwise, it would return the value of [Price] divided by [Quantity]. This is achieved with the following formula: IIf([Quantity]=0,0,[Price]/[Quantity]) Now, your Access query should no longer return an error when a [Quantity] of 0 is encountered. Share this page: Advertisement Back to top Home | About Us | Contact Us | Testimonials | Donate While using this site, you agree to have read and accepted our Terms of Service and Privacy Policy. We use advertisements to support this website and fund the development of new content. Copyright © 2003-2016 TechOnTheNet.com. All rights reserved.
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Access 2003 Query Parameters
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Access want me to enter a parameter value? Applies To: Access 2010, Access 2007, Less Applies To: Access 2010 , Access 2007 , More... Which version do I have? More... Symptoms When you open a Microsoft Office Access object (such as https://support.office.com/en-us/article/Why-does-Access-want-me-to-enter-a-parameter-value-a7344543-e758-4785-8433-420eb0f0b48e a table, query, form, or report), Access displays the Enter Parameter Value dialog box. Cause http://allenbrowne.com/casu-12.html Access displays the Enter Parameter Value dialog box when you open an object that contains an identifier or expression that Access cannot interpret. In some cases, this is the behavior that you want. For example, the creator of the database might have created a query that lets you enter information every time that the query runs, such access 2003 as a start date or an employee ID number. Such a prompt might resemble this: However, in other cases you do not want this dialog box to appear. For example, you might have made some changes to the design of your database, and now when you open an object, Access displays the dialog box unexpectedly with a message you do not understand. Resolution To stop the Enter Parameter Value dialog box access 2003 query from appearing, you must inspect any expressions that are associated with the object that you are working with, and find the identifier that is causing the dialog box to appear. Then, you must correct the identifier or the syntax of the expression that contains the identifier. The following procedures provide general guidelines for inspecting the expressions in different types of objects. However, the specific changes that you must make depend on the structure of your database. Find links to more information about expression syntax in the See Also section. When the unwanted Enter Parameter Value dialog box appears, note the identifier or expression that is listed in the dialog box: Click Cancel. Continue with one of the following procedures, depending on the type of object that you are opening when the dialog box appears. Inspect expressions in a query Inspect expressions in a report Inspect expressions in a form Inspect expressions in a table Inspect expressions in a query Typographical errors in queries are a frequent cause of unwanted parameter prompts. As mentioned earlier, when a query is designed to ask for a parameter value when it is run, the Enter Parameter Value dialog box appears by design. However, if you are sure that the query should not be asking for a parame
Nulls in Criteria If you enter criteria under a field in a query, it returns only matching records. Nulls are excluded when you enter criteria. For example, say you have a table of company names and addresses. You want two queries: one that gives you the local companies, and the other that gives you all the rest. In the Criteria row under the City field of the first query, you type: "Springfield" and in the second query: Not "Springfield" Wrong! Neither query includes the records where City is Null. Solution Specify Is Null. For the second query above to meet your design goal of "all the rest", the criteria needs to be: Is Null Or Not "Springfield" Note: Data Definition Language (DDL) queries treat nulls differently. For example, the nulls are counted in this kind of query: ALTER TABLE Table1 ADD CONSTRAINT chk1 CHECK (99 < (SELECT Count(*) FROM Table2 WHERE Table2.State <> 'TX')); Error 2: Nulls in expressions Maths involving a Null usually results in Null. For example, newbies sometimes enter an expression such as this in the ControlSource property of a text box, to display the amount still payable: =[AmountDue] - [AmountPaid] The trouble is that if nothing has been paid, AmountPaid is Null, and so this text box displays nothing at all. Solution Use the Nz() function to specify a value for Null: = Nz([AmountDue], 0) - Nz([AmountPaid], 0) Error 3: Nulls in Foreign Keys While Access blocks nulls in primary keys, it permits nulls in foreign keys. In most cases, you should explicitly block this possibility to prevent orphaned records. For a typical Invoice table, the line items of the invoice are stored in an InvoiceDetail table, joined to the Invoice table by an InvoiceID. You create a relationship between Invoice.InvoiceID and InvoiceDetail.InvoiceID, with Referential Integrity enforced. It's not enough! Unless you set the Required property of the InvoiceID field to Yes in the InvoiceDetail table, Access permits Nulls. Most often this happens when a user begins adding line items to the subform without first creating the invoice itself in the main form. Since these records don't match any record in the main form, these orphaned records are never displayed again. The user is convinced your program lost them, though they are still there in the table. Solution Always set the Required property of foreign key fields to Yes in table design view, unless you expressly want Nulls in the foreign key. Error 4: Nulls and non-Variants In Visual Basic, the only data type that can contain Null is the Varian