Library Version 18.1.40

Deleting Records Using Cursors
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## Deleting Records Using Cursors

To delete a record using a cursor, simply position the cursor to the record that you want to delete and then call `Dbc::del()`.

For example:

    #include <db_cxx.h>
    #include <string.h>

    ...

    char *key1str = "My first string";
    Db my_database(NULL, 0);
    Dbc *cursorp;

    try {
        // Database open omitted

        // Get the cursor
        my_database.cursor(NULL, &cursorp, 0);

        // Set up our DBTs
        Dbt key(key1str, strlen(key1str) + 1);
        Dbt data;

        // Iterate over the database, deleting each record in turn.
        int ret;
        while ((ret = cursorp->get(&key, &data,
                                      DB_SET)) == 0) {
            cursorp->del(0);
        }

    } catch(DbException &e) {
        my_database.err(e.get_errno(), "Error!");
    } catch(std::exception &e) {
        my_database.errx("Error! %s", e.what());
    }

    // Cursors must be closed
    if (cursorp != NULL)
        cursorp->close();

    my_database.close(0);

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