{"id":180,"date":"2022-12-22T03:02:12","date_gmt":"2022-12-22T03:02:12","guid":{"rendered":"https:\/\/softwarewebdesign.com\/SWDHome\/?page_id=180"},"modified":"2026-03-13T20:18:53","modified_gmt":"2026-03-13T20:18:53","slug":"code","status":"publish","type":"page","link":"https:\/\/softwarewebdesign.com\/SWDHome\/code\/","title":{"rendered":"How to Code"},"content":{"rendered":"

ACCESS 2022<\/a> | \nBrowsers<\/a> | \nCss<\/a> | \nHtacess<\/a> | \nHtml<\/a> | \nHtml5<\/a> | \nJavascript<\/a> | \nMicrosoft Excel<\/a> | \nMysql<\/a> | \nMysql Dumps<\/a> | \nPhp<\/a> | \nVb.net<\/a> | \nVBscript<\/a> | \nWindows <=8<\/a> | \nWindows >=10<\/a> | \nWP<\/a> | \nWP Plugin<\/a> | \nWP Themes<\/a> | \n_Misc Software<\/a> | \n<\/p>A<\/a>B<\/a>C<\/a>D<\/a>E<\/a>F<\/a>G<\/a>H<\/a>I<\/a>J<\/a>K<\/a>L<\/a>M<\/a>N<\/a>O<\/a>P<\/a>Q<\/a>R<\/a>S<\/a>T<\/a>U<\/a>V<\/a>W<\/a>X<\/a>Y<\/a>Z<\/a>

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<\/td> ACCESS 2022<\/td> Database<\/td> Creating Indexes\r\n
index\r\n
Developer<\/td>\r\n
What is an index?
\nYou can use an index to help Access find and sort records faster. An index stores the location of records based on the field or fields that you choose to index. After Access obtains the location from the index, it can then retrieve the data by moving directly to the correct location. In this way, using an index can be considerably faster than scanning through all of the records to find the data.
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\nDecide which fields to index
\nYou can create indexes that are based on a single field or on multiple fields. You'll probably want to index fields that you search frequently, fields that you sort, and fields that you join to fields in other tables in multiple table queries. Indexes can speed up searches and queries, but they can slow down performance when you add or update data. When you enter data in a table that contains one or more indexed fields, Access must update the indexes each time a record is added or changed. Adding records by using an append query or by appending imported records is also likely to be slower if the destination table contains indexes.
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\nNote: The primary key of a table is automatically indexed.
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\nYou cannot index a field whose data type is OLE Object, Calculated, or Attachment. For other fields, consider indexing a field if all of the following apply:
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\nThe field's data type is Short Text, Long Text, Number, Date\/Time, AutoNumber, Currency, Yes\/No or Hyperlink.
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\nYou anticipate searching for values stored in the field.
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\nYou anticipate sorting values in the field.
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\nYou anticipate storing many different values in the field. If many of the values in the field are the same, the index might not significantly speed up queries.
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\nMultiple-field indexes
\nIf you think that you'll often search or sort by two or more fields at a time, you can create an index for that combination of fields. For example, if you often set criteria for the Vendor and ProductName fields in the same query, it makes sense to create a multiple-field index on both fields.
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\nWhen you sort a table by a multiple-field index, Access sorts first by the first field defined for the index. You set the order of the fields when you create a multiple-field index. If there are records with duplicate values in the first field, Access sorts next by the second field defined for the index, and so on.
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\nYou can include up to 10 fields in a multiple-field index.
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\nCreate an index
\nTo create an index, you first decide whether you want to create a single-field index or a multiple-field index. You create an index on a single field by setting the Indexed property. The following table lists the possible settings for the Indexed property.
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\nIndexed property setting
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\nMeaning
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\nNo
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\nDon't create an index on this field (or delete the existing index)
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\nYes (Duplicates OK)
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\nCreate an index on this field
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\nYes (No Duplicates)
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\nCreate a unique index on this field
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\nIf you create a unique index, Access doesn't allow you to enter a new value in the field if that value already exists in the same field in another record. Access automatically creates a unique index for primary keys, but you might also want to prohibit duplicate values in other fields. For example, you can create a unique index on a field that stores serial numbers so that no two products have the same serial number.
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\nCreate a single-field index
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\nIn the Navigation Pane, right-click the name of the table that you want to create the index in, and then click Design View on the shortcut menu.
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\nClick the Field Name for the field that you want to index.
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\nUnder Field Properties, click the General tab.
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\nIn the Indexed property, click Yes (Duplicates OK) if you want to allow duplicates, or Yes (No Duplicates) to create a unique index.
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\nTo save your changes, click Save on the Quick Access Toolbar, or press CTRL+S.
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\nCreate a multiple-field index
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\nTo create a multiple-field index for a table, you include a row for each field in the index and include the index name only in the first row. Access treats all rows as part of the same index until it comes to a row containing another index name. To insert a row, right-click the location where you want to insert a row, and then click Insert Rows on the shortcut menu.
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\nIn the Navigation Pane, right-click the name of the table that you want to create the index in, and then click Design View on the shortcut menu.
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\nOn the Design tab, in the Show\/Hide group, click Indexes.
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\nThe Indexes window appears. Resize the window so that some blank rows appear and the index properties are shown.
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\nIn the Index Name column, in the first blank row, type a name for the index. You can name the index after one of the index fields, or use another name.
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\nIn the Field Name column, click the arrow and then click the first field that you want to use for the index.
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\nIn the next row, leave the Index Name column blank, and then, in the Field Name column, click the second field for the index. Repeat this step until you select all the fields that you want to include in the index.
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\nTo change the sort order of the field's values, in the Sort Order column of the Indexes window, click Ascending or Descending. The default sort order is Ascending.
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\nIn the Indexes window, under Index Properties, set the index properties for the row in the Index Name column that contains the name of the index. Set the properties according to the following table.
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\nLabel
\n
\nValue
\n
\nPrimary
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\nIf Yes, the index is the primary key.
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\nUnique
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\nIf Yes, every value in the index must be unique.
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\nIgnore Nulls
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\nIf Yes, records with a Null value in the indexed fields are excluded from the index.
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\nTo save your changes, click Save on the Quick Access Toolbar or press CTRL + S.
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\nClose the Indexes window.
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\nDelete an index
\nIf you find that an index becomes unnecessary or is having too great an impact on performance, you can delete it. When you delete an index, you remove only the index and not the field or fields on which it is built.
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\nIn the Navigation Pane, right-click the name of the table that you want to delete the index in, and then click Design View on the shortcut menu.
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\nOn the Design tab, in the Show\/Hide group, click Indexes.
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\nThe Indexes window appears. Resize the window so that some blank rows appear and the index properties are shown.
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\nIn the Indexes window, select the row or rows that contain the index that you want to delete, and then press DELETE.
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\nTo save your changes, click Save on the Quick Access Toolbar or press CTRL + S..
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\nClose the Indexes window.
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\nView and edit indexes
\nYou might want to see the indexes for a table to weigh their impact on performance, or to ensure that particular fields are indexed.
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\nIn the Navigation Pane, right-click the name of the table that you want to edit the index in, and then click Design View on the shortcut menu.
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\nOn the Design tab, in the Show\/Hide group, click Indexes.
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\nThe Indexes window appears. Resize the window so that some blank rows appear and the index properties are shown.
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\nView or edit the indexes and index properties to suit your needs.
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\nTo save your changes, click Save on the Quick Access Toolbar or press CTRL + S..
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\nClose the Indexes window.<\/div><\/td>\r\n
ACCESS 2022\r\n
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<\/td> ACCESS 2022<\/td> Form<\/td> Enable Users To Find A Record By Selecting A Value From A List\r\n
combo box find record\r\n
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https:\/\/support.microsoft.com\/en-us\/office\/enable-users-to-find-a-record-by-selecting-a-value-from-a-list-e3ed7711-433a-4931-9cab-b0f71a90c329
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\nWhen you design a form in Access, you can create a list box or a combo box that can be used to find a record when a value is selected from the list. This makes it easier for users to quickly find existing records without having to type a value into the Find dialog box.
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\nNotes:
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\nFor this procedure to work, the form must be bound to a table or a saved query. Step 5 of the procedure contains more information about what to do if this is not the case.
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\nThis procedure might create code that will run only when the database is granted trusted status. For more information, see the article Decide whether to trust a database.
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\nCreate the list box or combo box
\nRight-click the form in the Navigation Pane, and then click Design View.
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\nOn the Design tab, in the Controls group, ensure that Use Control Wizards Button image is selected. this is buried below the control group. Click on the lowest arrow down and you will find it.
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\nIn the Controls group, click List Box or Combo Box.
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\nOn the form, click where you want to put the list box or combo box.
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\nOn the first page of the wizard, click Find a record on my form based on the value I selected in my combo box\/list box, and then click Next.
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\nThe Find a record... option is not available.
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\nIf the option Find a record on my form based on the value I selected in my combo box\/list box is not displayed, it is likely because the form is not bound to a table or a saved query. The form must be bound to an object that is available in the Navigation Pane under Tables or Queries.
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\nUse the following procedure to check whether a form is bound to a table or saved query:
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\nClick Cancel to close the wizard.
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\nRight-click the list box or combo box that you created earlier, and then click Delete.
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\nIf the Property Sheet task pane is not displayed, press F4 to display it.
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\nSelect Form from the list at the top of the property sheet.
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\nOn the Data tab of the property sheet, look at the Record Source property box. This box must contain the name of a table or saved query before you can use the procedure described in this article. If the box is blank, you can select an existing table or query as the record source, or you can create a new query to serve as the record source. If the box contains a SELECT statement, you have the additional option of converting that statement to a saved query. Once you have completed one of these tasks, the next time you run the Combo Box\/List Box wizard, it will display the Find a record... option.
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\nFollow one of these procedures based on what you want to do:
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\nSelect an existing table or query as the record source or enter something like SELECT [mulitreplace].[replaceid], [mulitreplace].[title] FROM [mulitreplace] ORDER BY [mulitreplace].[title];
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\nIf you know that there is an existing table or query in your database that contains the records you want to find, use this procedure to bind the form to that object.
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\nNote: If the Record Source property box contains a SELECT statement, following this procedure will delete that statement permanently. You might want to copy the statement to a text file or other word processing program in case you want to restore it.
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\nClick in the Record Source property box, and then click the drop-down arrow that appears.
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\nSelect one of the available tables or queries. If a suitable table or query is not available, you must create one before you can continue. For more information, see the articles Create a table and add fields or Create a simple select query.
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\nSave the form, and then repeat the procedure at the beginning of this article. The wizard should now display the Find a record on my form based on the value I selected in my combo box\/list box option.
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\nCreate a new saved query, or convert a SELECT statement to a saved query
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\nIf the data you want to find is contained in more than one table, you will need to bind the form to a query that selects the data from those tables.
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\nIn the Record Source property box, click the Build button Builder button.
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\nAccess opens the Query Builder.
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\nYou can begin creating a new query. For more information, see the article Create a simple select query. When you are finished building the query, proceed with step 2.
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\nIf the Record Source property box originally contained a SELECT statement, that query is displayed in the Query Builder. Proceed with step 2 to convert it to a saved query.
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\nOn the Design tab, in the Close group, click Save As.
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\nIn the Save As dialog box, type a name for the query in the Save 'Queryn' to: box.
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\nMake sure that Query is selected in the As box, and then click OK.
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\nOn the Design tab, in the Close group, click Close.
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\nClick Yes to save the changes made to the query and update the property.
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\nAccess displays the form in Design view, and changes the Record Source property so that the new saved query name is displayed.
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\nClick Save on the Quick Access Toolbar.
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\nRepeat the procedure at the beginning of this article. The wizard should now display the Find a record on my form based on the value I selected in my combo box\/list box option.
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\nFollow the directions in the wizard. On the last page of the wizard, click Finish to display the list box or combo box in Design view.
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ACCESS 2022\r\n
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<\/td> ACCESS 2022<\/td> Function<\/td> Printing Duplicate Records From A Table To A Query\r\n
darnell labels duplicate vb script\r\n
Darnel Lables<\/td>\r\n