Queries microsoft access tutorial




















The field displays a sum of the column values. Now suppose that you want to review product subtotals, but you also want to aggregate by month, so that each row shows subtotals for a product, and each column shows product subtotals for a month. To show subtotals for a product and to show product subtotals for a month, use a crosstab query. Note: A crosstab query cannot be displayed in an Access web app.

You can modify the Product Subtotals query again so that the query returns rows of product subtotals and columns of monthly subtotals. On the Design tab, in the Query Type group, click Crosstab.

In the design grid, the Show row is hidden, and the Crosstab row is displayed. In the third column of the design grid, right-click the Field row, and then click Zoom on the shortcut menu. The Zoom box opens. In the Crosstab row, select the following values from the drop-down list: Row Heading for the first column, Value for the second column, and Column Heading for the third column.

The query runs, and then displays product subtotals, aggregated by month. For more information about crosstab queries, see Make summary data easier to read by using a crosstab query. Note: A make-table query is not available in Access web apps. For example, suppose that you want to send data for Chicago orders to a Chicago business partner who uses Access to prepare reports.

Instead of sending all your order data, you want to restrict the data that you send to data specific to Chicago orders. You can build a select query that contains Chicago order data, and then use the select query to create the new table by using the following procedure:.

Note: If you see a message beneath the Ribbon about enabling the database, click Enable content. If your database is already in a trusted location, you will not see the Message Bar. In the Ship City column of the design grid, clear the box in the Show row. In the Criteria row, type 'Chicago' include the single quotation marks. Verify the query results before you use them to create the table. In the confirmation dialog box, click Yes , and see the new table displayed in the Navigation Pane.

Note: If there is already a table with the same name that you specified, Access deletes that table before running the query. For more information about using make table queries, see Create a make table query. You can use an append query to retrieve data from one or more tables and add that data to another table. Note: Append query is not available in Access web apps. For example, suppose that you created a table to share with a Chicago business associate, but you realize that the associate also works with clients in the Milwaukee area.

You want to add rows that contain Milwaukee area data to the table before you share the table with your associate. You can add Milwaukee area data to the Chicago Orders table by using the following procedure:. On the Design tab, in the Query Type group, click Append. The Append dialog box opens. In the design grid, in the Criteria row of the Ship City column, delete 'Chicago', and then type 'Milwaukee'.

In this example, the Append To row values should match the Field row values, but that is not required for append queries to work. Note: While running a query that returns a large amount of data you might get an error message indicating that you will not be able to undo the query. Try increasing the limit on the memory segment to 3MB to allow the query to go through.

For more information about append queries, see Add records to a table by using an append query. You can use an update query to change the data in your tables, and you can use an update query to enter criteria to specify which rows should be updated.

An update query provides you an opportunity to review the updated data before you perform the update. Important: An action query cannot be undone. You should consider making a backup of any tables that you will update by using an update query.

An update query is not available in Access web apps. In the previous example, you appended rows to the Chicago Orders table. To make the data more useful in reports, you can replace the product IDs with product names, use the following procedure:.

This creates a form based on the selected object in this case, the Customers table. The form is initially displayed in Layout view. Layout view allows you to set up your form while it is populated with real data. You can even enter data while in this view:. If prompted to save the form, call it Customer Form and click OK. This displays the form in a more design-oriented way.

You will also notice that no data is displayed in the form. This allows you to make changes without data getting in the way. The above screenshot shows Design View with the Property Sheet open and highlighted. You can use this to make specific adjustments to the controls on your form. You can also use Design View to click and drag items around, add headers and footers, etc. You can also modify the labels eg, add a space to FirstName to make it First Name , etc.

Have a play around with the form to see how you can format it. Now we come to macros. A macro is a set of actions that can be run automatically.

For example, can have a macro run whenever the user clicks a button, or you can have it run automatically when they open the database.

For example, if you find yourself always opening the Customers Form every time you open the database, why not create a macro that opens it automatically? That will save you from having to find the form and double click on it every single time you open the database. Here, we customise the OpenForm action such as telling it which form to open, which view to open it in, etc. Use these settings:. Now select another action from the combo box. This time select GoToRecord.

This will make the form open a new record every time the macro runs. Now save the macro by clicking the Save icon. Be sure to name it AutoExec. Saatya Prasad. Gowthami Swarna. Akshay Magre. Previous Page. Next Page. Useful Video Courses. What is Microsoft Access? What You Will Learn. Report a Bug. Next Continue.

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