create qr code vb.net Part 4: Designing an Access Project in .NET framework

Creation ANSI/AIM Code 128 in .NET framework Part 4: Designing an Access Project

Part 4: Designing an Access Project
Code128 Maker In .NET
Using Barcode printer for .NET Control to generate, create Code 128A image in Visual Studio .NET applications.
www.OnBarcode.com
Recognizing Code 128B In .NET Framework
Using Barcode decoder for Visual Studio .NET Control to read, scan read, scan image in VS .NET applications.
www.OnBarcode.com
00 00 00 00 00 18
Encode Barcode In .NET
Using Barcode generator for .NET framework Control to generate, create barcode image in VS .NET applications.
www.OnBarcode.com
Recognize Barcode In .NET
Using Barcode recognizer for .NET Control to read, scan read, scan image in Visual Studio .NET applications.
www.OnBarcode.com
Figure 18-4. A new view in the query designer with the SQL pane displayed.
Code 128A Creator In C#.NET
Using Barcode drawer for .NET Control to generate, create Code 128 Code Set A image in .NET applications.
www.OnBarcode.com
Code-128 Printer In Visual Studio .NET
Using Barcode generation for ASP.NET Control to generate, create Code 128A image in ASP.NET applications.
www.OnBarcode.com
You can enter an SQL statement directly in the SQL pane, and the query designer updates the display as soon as you move the focus away from the SQL pane (by clicking in the grid pane or the diagram pane). However, the query designer can graphically represent only a small subset of the possible SQL statements you might use. If you enter SQL code that the designer cannot display, you receive a warning message stating that the code cannot be represented graphically. The next time you open the query in Design view, you will see the SQL-only text version. 642
Drawing Code 128 Code Set C In VB.NET
Using Barcode encoder for .NET Control to generate, create Code 128C image in .NET framework applications.
www.OnBarcode.com
PDF 417 Drawer In .NET Framework
Using Barcode drawer for VS .NET Control to generate, create PDF 417 image in VS .NET applications.
www.OnBarcode.com
Part 1: Part Title
Code128 Creation In VS .NET
Using Barcode encoder for .NET Control to generate, create Code 128C image in .NET applications.
www.OnBarcode.com
Make Barcode In .NET Framework
Using Barcode creator for .NET framework Control to generate, create barcode image in .NET framework applications.
www.OnBarcode.com
Building Queries in an Access Project
QR Code ISO/IEC18004 Drawer In .NET Framework
Using Barcode maker for Visual Studio .NET Control to generate, create Denso QR Bar Code image in VS .NET applications.
www.OnBarcode.com
Painting OneCode In Visual Studio .NET
Using Barcode creation for .NET framework Control to generate, create USPS OneCode Solution Barcode image in VS .NET applications.
www.OnBarcode.com
Selecting Columns
Generate UCC.EAN - 128 In None
Using Barcode generation for Microsoft Excel Control to generate, create EAN / UCC - 14 image in Microsoft Excel applications.
www.OnBarcode.com
Printing GTIN - 13 In Visual Studio .NET
Using Barcode printer for ASP.NET Control to generate, create EAN / UCC - 13 image in ASP.NET applications.
www.OnBarcode.com
You can add columns to your query in several ways. You can drag a column name from the diagram pane and drop it on the grid pane. You can also add a column by clicking the box to the left of the column name in the diagram pane. When you do this, a check mark appears next to the column name, and Access adds the column to the grid pane as shown in Figure 18-5.
Reading PDF 417 In VB.NET
Using Barcode recognizer for Visual Studio .NET Control to read, scan read, scan image in .NET applications.
www.OnBarcode.com
Code 3/9 Printer In None
Using Barcode drawer for Software Control to generate, create Code 39 image in Software applications.
www.OnBarcode.com
00
GTIN - 128 Generation In Java
Using Barcode drawer for Java Control to generate, create UCC-128 image in Java applications.
www.OnBarcode.com
GTIN - 128 Printer In Java
Using Barcode printer for BIRT reports Control to generate, create GTIN - 128 image in Eclipse BIRT applications.
www.OnBarcode.com
Figure 18-5. Adding a column to the view by placing a check mark next to the column name in the diagram pane.
PDF-417 2d Barcode Generation In None
Using Barcode encoder for Microsoft Word Control to generate, create PDF 417 image in Word applications.
www.OnBarcode.com
Scan Quick Response Code In VS .NET
Using Barcode decoder for .NET framework Control to read, scan read, scan image in .NET framework applications.
www.OnBarcode.com
You can also select a column from the Column drop-down list in the grid pane as shown in Figure 18-6. If you have specified multiple record sources in the diagram pane, you can filter the list of available column names in the Column drop-down list by first choosing the record source from the Table drop-down list. Add the CompanyName and the Department columns to the view by clicking next to the column listings in the diagram pane.
Figure 18-6. Adding a column to a view by selecting the column name from the drop-down list in the grid pane.
Part 4: Designing an Access Project
18
00
00
00
00
Part 00: Part Title
Microsoft Office Access 2003 Inside Out
Working in the Diagram Pane
00 00 00
Part 4: Designing an Access Project
After you have started working on the query, you can add other record sources by right-clicking in the blank area of the diagram pane and selecting Add Table from the shortcut menu. You can also click the Add Table button on the toolbar or choose Add Table from the Query menu. Access displays the Add Table dialog box so that you can select additional record sources (Figure 18-2). You can remove any record source from the diagram pane by right-clicking on the record source and selecting Remove, or by clicking the title bar of the record source to select it and pressing the Delete key. Add the tblCompanyContacts and the tblContacts tables using the Add Table dialog box. Click Close when you are done. Your design grid should now look like Figure 18-7.
00 00 18
Figure 18-7. A new view with the tblCompanyContacts and the tblContacts tables added.
If a relationship exists between two tables in the diagram pane, Access automatically creates an inner join and displays a line connecting the primary key of one table (the key symbol) to the foreign key of the related table (the infinity symbol), similar to the way such a relationship is represented in a desktop database diagram (as discussed in 17). Remember from 8, Building Complex Queries, that an inner join returns only the rows from the two tables that have matching values in both tables. Note in Figure 18-7 the two INNER JOIN clauses that Access created (in the SQL pane) and the lines connecting the three tables (in the diagram pane) that represent the defined relationships. When you include views or functions in your query, Access creates a join for you if it can find fields with the same name and data type in two of the record sources. You can create additional joins by clicking on one column name in a record source and dragging and dropping it onto the related column name in a separate record source. To remove a join, click on it once to select it and then press the Delete key on your keyboard. You can also remove a join by right-clicking on it and selecting Remove from the shortcut menu. You can specify the type of join you want by right-clicking on the line representing the join between the two tables. On the shortcut menu, you can select an option to select all rows from either table in the join. This is the same as specifying a left or a right join when writing the query in SQL. (Notice that Access updates the syntax in the SQL pane to say LEFT JOIN 644
Copyright © OnBarcode.com . All rights reserved.