Introduction to SQL (Structured Query Language) Written By TheVBProgramer. This tutorial is not directly related to Visual Basic 6. But you will use this information heavily when writing any VB6 program that accesses a database. This teaches you all the basics and then some of the SQL language - it does so using Access databases. The SQL tutorial is pretty lengthy, but if you press through it you will really understand how database programming works. Prerequisites This tutorial presumes that the reader has a working knowledge of basic database table design principles, including basic normalization and relationships (one-to-many, one-to-one, many-to-many). Tutorials on database normalization and relationships can be found on various Internet sites. You will need to have MS-Access 2000 (or higher) installed on your system to perform the examples presented in this tutorial. About this Tutorial Download the "NWINDVBP.MDB" database here. A Note on Terminology Introduction to SQL DML Statements DDL Statements DROP Enables you to delete a table.
Access Tips: Parameter Queries. A useful feature of the query is that it can be saved and used again and again, whenever we want to ask the same question. The result we see (the dynaset) always reflects the most up-to-date information in the database because what you save is the question, not the answer. You just ask the question again by running the query. Sometimes we want to ask a question time and time again, but the details (the query's criteria) may vary. It would be handy to have a way to run a query and make changes to its criteria without having to design a completely new one from scratch. Access has a tool to solve that problem, the Parameter Query. In fact, the parameter query can be any sort of query. When you run a parameter query Access presents you with a dialog box prompting you for the parameter value, which it enters into the appropriate criteria cell.
Entering a Parameter Instead of typing a value or expression into the criteria cell, type some text enclosed in square brackets ([ ]). ^ top Example 1. MS Access Tutorial - Reports. Having all your data stored in Access is great for maintaining a database, but it isn't the best when you want to share the data or view it away from a computer. The solution to this problem is to create an Access report that will let you design a ready-to-print document of your desired database information. Sticking with our example of business owner Bob, CEO of Bob's Shoe Store, let's explore how he would go about printing out a sales report that he can peruse on his flight to the annual Shoe Owner's of the World Convention (SOWC). Bob wants a report to show the sales for each product, as well as the total sales for his company.
Luckily, because he has all his sales information in an Access database, he can create this report in about a minute! Let's explore how you would create this basic sales report in Access. and click Finish Open up your report and check it out! Bob can now print out this handy report and review his sales in an easy-to-read fashion, while away from his computer. Fisher.osu.edu/~muhanna_1/837/MSAccess/tutorials/form_adv.pdf.
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