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32            <h2 class="title" style="clear: both"><a id="secondaryDelete"></a>Deleting Secondary Database Records</h2>
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36      <p>
37        In general, you 
38             
39            <span>will</span> 
40        not modify a secondary database directly. In
41        order to modify a secondary database, you should modify the primary
42        database and simply allow DB to manage the secondary modifications for you.
43    </p>
44      <p>
45        However, as a convenience, you can delete 
46            <code class="classname">SecondaryDatabase</code>
47            
48        records directly. Doing so causes the associated primary key/data pair to be deleted.
49        This in turn causes DB to delete all 
50            <code class="classname">SecondaryDatabase</code>
51            
52        records that reference the primary record.
53    </p>
54      <p>
55        You can use the 
56            <code class="methodname">SecondaryDatabase.delete()</code>
57            
58            
59        method to delete a secondary database record. 
60        
61        
62
63        <span>Note that if your
64             
65            <code class="classname">SecondaryDatabase</code> 
66        contains duplicate records, then deleting a record from the set of
67        duplicates causes all of the duplicates to be deleted as well.
68        </span>
69
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71      <div class="note" style="margin-left: 0.5in; margin-right: 0.5in;">
72        <h3 class="title">Note</h3>
73        <p>
74      <span><code class="methodname">SecondaryDatabase.delete()</code> causes the
75      previously described delete operations to occur
76      </span>
77      
78      only if the primary database is opened for write access.
79      </p>
80      </div>
81      <p>For example:</p>
82      <a id="java_index7"></a>
83      <pre class="programlisting">package db.GettingStarted;
84
85import com.sleepycat.db.DatabaseEntry;
86import com.sleepycat.db.DatabaseException;
87import com.sleepycat.db.OperationStatus;
88import com.sleepycat.db.SecondaryDatabase;
89
90...
91try {
92    SecondaryDatabase mySecondaryDatabase = null;
93    // Omitting all database opens
94    ...
95
96    String searchName = "John Doe";
97    DatabaseEntry searchKey = 
98        new DatabaseEntry(searchName.getBytes("UTF-8"));
99
100    // Delete the first secondary record that uses "John Doe" as
101    // a key. This causes the primary record referenced by this secondary
102    // record to be deleted.
103    OperationStatus retVal = mySecondaryDatabase.delete(null, searchKey);
104} catch (Exception e) {
105    // Exception handling goes here
106}</pre>
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