2609Multiple Form Selection (Where In)http://www.codeave.com/asp/code.asp?u_log=127Allowing multiple choices of data observations enables people to customize views of your data and adds value to your applications. The following example utilizes our db on the career statistics of Hammerin? Hank Greenberg. The years he played are available to select from in a dropdown menu. When multiple years are selected they are passed comma delimited. Utilizing the where in statement in our sql the comma delimited selections are appended to our sql statement to display only those years selected. Because we are looking for numeric values in our where in statement no modification to the comma delimited input is necessary. When character input is involved a replace statement can be used to put the appropriate quotation marks into your statement. Which is also provided in this example, but must be un-commented to be usedASP > Tips and Tutorials > Database-relatedOct 10, 2006
By centralizing database code within ActiveX DLL's, you can simplify your development efforts, and decrease the learning curve for new developers. In this article, we will create a Visual Basic ActiveX DLL that controls database functionality for our Active Server Page (ASP) demo.
This article offers an analysis of Structured Query Language (SQL) and presents techniques that can be used in building SQL statements. People tend to think of SQL as a programming language, but in reality, SQL is a Set language. One could say SQL is Set Theory or Relational Algebra; these terms are interchangeable. Some people think of this in terms of Venn diagrams or DeMorgan's Law. Although those can be quite complicated, the basic forms are not difficult to understand. The cases presented here are intended for certain circumstances, but they can be applied to many situations. Each article in this four-part series will address one case.
Multiple Recordsets - the ability to stuff multiple SQL query results into one Recordset - is an ADO feature that's few developers are aware of. In this article, we are going to take a look on what a Mutliple Recordset is, exactly, and how it can make your development life easier (and your code more efficient). But before we start examining Multiple Recordsets, let's look at a common task in ASP and how it is handled without using Multiple Recordsets.
code required for this page is very simple. A database connection is established and the database is queried for the record with the passed in ID. Then, the document's content-type is set to "image/gif" to let the browser know to interpret the coming data as an image. Finally, the Response.Binarywrite method is used to output the binary data from the database. Note how this is actually used in an IMG tag of an HTML page
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