Update first record access

Skip to main content. This browser is no longer supported. Download Microsoft Edge More info. Contents Exit focus mode. Please rate your experience Yes No. Any additional feedback? To edit a record, use the Edit method to copy the contents of the current record to the copy buffer. If you don't use Edit first, an error occurs when you use Update or attempt to change a field's value.

In an ODBCDirect workspace, you can do batch updates, provided the cursor library supports batch updates, and the Recordset was opened with the optimistic batch locking option. In a Microsoft Access workspace, when the Recordset object's LockEdits property setting is True pessimistically locked in a multiuser environment, the record remains locked from the time Edit is used until the Update method is executed or the edit is canceled.

If the LockEdits property setting is False optimistically locked , the record is locked and compared with the pre-edited record just before it is updated in the database. If the record has changed since you used the Edit method, the Update operation fails. To continue the Update operation with your changes, use the Update method again. To revert to the record as the other user changed it, refresh the current record by using Move 0. To add, edit, or delete a record, there must be a unique index on the record in the underlying data source.

This example demonstrates the Update method in conjunction with Edit method. This example demonstrates the Update method in conjunction with the AddNew method. Finds all records that include the letter sequence "ar". Finds all records that begin with "Maison" and contain a 5-letter second string in which the first 4 letters are "Dewe" and the last letter is unknown.

Finds all records for February 2, Uses the Date function to return all records containing today's date. Uses the Date and DateAdd functions to return all records between today's date and three months from today's date. Returns all records that contain a zero-length string. You use zero-length strings when you need to add a value to a required field, but you don't yet know what that value is. For example, a field might require a fax number, but some of your customers might not have fax machines.

In that case, you enter a pair of double quotation marks with no space between them "" instead of a number. On the Design tab, in the Results group, click Run.

To add any fields that you want to include in the query design, drag the additional fields to the query design grid. On the Design tab, in the Query Type group, click Update. This procedure shows you how to change a select query to an update query. When you do this, Access adds the Update to row in the query design grid. The following illustration shows an update query that returns all the assets purchased after January 5, and changes the location to "Warehouse 3" for all the records that meet that criterion.

Locate the field that contains the data that you want to change, and then type your expression your change criteria in the Update to row for that field. Where the ProductID values in the current table match the ProductID values in table named Order Details, this expression updates sales totals by multiplying the values in a field named Quantity by the values in a field named UnitPrice. The expression uses the DSum function because it can operate against more than one table and table field.

Truncates removes the leftmost characters in a text or numeric string and leaves the 5 rightmost characters. Note: When you run the query, you might notice that some fields are missing from your result set. If your query contains fields that you don't update, Access does not display those fields in the results, by default.

For example, you might include ID fields from two tables to help ensure that your query identifies and updates the correct records. If you don't update those ID fields, Access does not display them in the results. When you need to update data from one table to another, consider the following rule: the data types for the source and destination fields must either match or be compatible. Furthermore, when you update data from one table to another and use compatible data types instead of matching data types, Access converts the data types of those fields in the destination table.

As a result, some of the data in the destination fields may be truncated deleted. The section Restrictions on data type conversions lists the ways in which you can and cannot convert data types. The table in this section also explains when converting a data type can change or eliminate some or all the data in a field, and what data might be eliminated. Add the names of your destination fields to the Field row of the query design grid. The steps in this section assume the use of two similar tables.

In this example, the Clients table is located in a database that you just inherited, and it contains more recent data than the Customers table. You can see that some of the manager names and addresses have changed. For that reason, you decide to update the Customers table with the data from the Clients table.

As you continue, remember that although the data types for each table field do not have to match, they must be compatible. Access must be able to convert the data in the source table into a type that the destination table can use. In some cases, the conversion process might delete some data. For more information about restrictions when you convert data types, see the section Restrictions on data type conversions.

Note: The following steps assume the use of the two preceding sample tables. You can adapt the steps to fit your data.

Double-click your source and destination tables to add them to the query. Each table appears in a window in the query designer. In most cases, Access automatically joins related fields in a query.

To manually join fields that contain related information, drag the related field from one table to the equivalent field in the other table. Access creates a relationship between those fields in the two tables and uses that relationship to join any related records. In the destination table, double-click the fields that you want to update. Each field appears in the Field row in the query design grid. If you use the sample tables, you add all fields except the Customer ID field.

Notice that the name of the destination table appears in the Table row of the design grid. In the Update To row of the query, in each of the columns that contains a destination field, add the name of the source table and the field in the source table that corresponds to the field in the destination table, and make sure that you use this syntax: [ Table ].

This figure shows part of the design grid, using the sample tables. Note the syntax for the table and field names in the Update To row. As you continue, remember that you must spell the table and field names in the Update To row correctly, and you must match any punctuation in the original table and field names.

However, you do not have to match capitalization. The following table lists the data types that Access provides, explains any restrictions on how to convert data types, and briefly describes any data loss that might occur during conversion. Text must consist of numbers, valid currency, and decimal separators.