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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 Lock Edits 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. Last Name ' Restore original data because this is a demonstration.

As before, click the Commit Changes to update the record in the database.

This sample code has been written based on the environment and database setup done in the previous chapters. ID: 100, Age: 33, First: Zara, Last: Ali ID: 101, Age: 40, First: Mahnaz, Last: Fatma ID: 102, Age: 50, First: Zaid, Last: Khan ID: 103, Age: 45, First: Sumit, Last: Mittal List result set showing new ages...

Copy and past the following example in JDBCExample.java, compile and run as follows − java JDBCExample Connecting to database... ID: 100, Age: 38, First: Zara, Last: Ali ID: 101, Age: 45, First: Mahnaz, Last: Fatma ID: 102, Age: 55, First: Zaid, Last: Khan ID: 103, Age: 50, First: Sumit, Last: Mittal Inserting a new record... ID: 100, Age: 38, First: Zara, Last: Ali ID: 101, Age: 45, First: Mahnaz, Last: Fatma ID: 102, Age: 55, First: Zaid, Last: Khan ID: 103, Age: 50, First: Sumit, Last: Mittal ID: 104, Age: 40, First: John, Last: Paul List the record before deleting...

This example would explain INSERT, UPDATE and DELETE operation on a table.

It should be noted that tables you are working on should have Primary Key set properly.

If you always want new tabs to open, you can set a preference to pin tabs. Update that record by clicking on any of the values and changing it.

Notice that once you have updated the record, an asterisk (*) shows next to the record.If the Lock Edits 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. Last Name = "Kobara" ' Show contents of buffer and get user input. If the record has changed since you used the Edit method, the Update operation fails. str Message = "Edit in progress:" & vb Cr & _ " Original data = " & str Old First & " " & _ str Old Last & vb Cr & " Data in buffer = " & _ ! Last Name & vb Cr & vb Cr & _ "Use Update to replace the original data with " & _ "the buffered data in the Recordset? This can be cumbersome if you have multiple records.To update multiple records, it's easier to use a SQL statement. Last Name = "Sornsin" ' Show contents of buffer and get user input. Last Name ' Delete new data because this is a demonstration. It is also required that a table ' with a primary key is used. Open Recordset( _ "SELECT * FROM roysched", db Open Dynaset, 0, _ db Optimistic Batch) With rst Temp ' Modify data in local recordset. Add Name rst Employees, str First Name, str Last Name ' Show the newly added data.

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