Calculated field in microsoft access query


















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Home Ms Access Query. Recent Post. Adult Green Dragon 5e. Lgbt Trait Sims 4. Set Up Outlook Email Address. Aloe Vera Plant Gel. Iban Ing. Rdbms Example. Political Essay. Microsoft Edge Tile. Blade Jig. Tumby Bay. Mystic Unicorn. On the Design tab, in the Controls group, click the tool for the type of control you want to create. For a list of control types that can be used as calculated controls, see the section Learn which types of controls can be used as calculated controls.

Position the pointer where you want the control to be placed on the form or report, and then click on the form or report to insert the control. Select the control, press F4 to display the property sheet, and then type an expression in the Control Source property box.

To use the Expression Builder to create the expression, click next to the Control Source property box. For more information about creating expressions, see the article Learn to build an expression. If your form or report is based on a query, you might want to put the expression in the query instead of in a calculated control. Doing this can improve performance and, if you are going to calculate totals for groups of records, it is easier to use the name of a calculated field in an aggregate function.

When you sort on a calculated control in a form or report, ensure that the Format property of the control is set appropriately. Otherwise, calculated numeric or date values might sort alphabetically instead of numerically. A good way to create a calculated control is by first creating a bound control for example, by dragging a field from the Field List pane to your form or report , and then editing the bound control's Control Source property to create an expression.

This works well, as long as you ensure that the name of the control does not conflict with any of the field names contained in the expression. For more information about creating a bound control by dragging a field from the Field List pane, see the article Add a field to a form or report. Assuming you have already created your bound control, use the following procedure to change it to a calculated control and avoid any name conflicts. On the All tab of the property sheet, if the Name property matches the Control Source property, edit the Name property so that the two properties do not match.

Ensure that the name you enter is not a reserved word or the name of another field in your database. For more information about reserved words, see the article Learn about Access reserved words and symbols. Edit the string in the Control Source property box so that it contains the expression you want. If the control does not display the data you want for example, if Access displays Name? Expand your skills. Get new features first.

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