64 lines
4.0 KiB
HTML
64 lines
4.0 KiB
HTML
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<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE html
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PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<html lang="en-us" xml:lang="en-us">
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<meta name="DC.Type" content="reference" />
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<meta name="DC.Title" content="Step 5b: Delete the current row" />
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<meta name="abstract" content="When your program has retrieved the current row, you can delete the row by using the DELETE statement. To do this, you issue a DELETE statement designed for use with a cursor; the WHERE CURRENT OF clause specifies a cursor that points to the row you want to delete." />
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<meta name="description" content="When your program has retrieved the current row, you can delete the row by using the DELETE statement. To do this, you issue a DELETE statement designed for use with a cursor; the WHERE CURRENT OF clause specifies a cursor that points to the row you want to delete." />
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<meta name="DC.subject" content="cursor, delete current row, example, examples" />
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<meta name="keywords" content="cursor, delete current row, example, examples" />
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<meta name="DC.Relation" scheme="URI" content="rbafycursorexamp.htm" />
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<meta name="copyright" content="(C) Copyright IBM Corporation 1998, 2006" />
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<title>Step 5b: Delete the current row</title>
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</head>
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<body id="rbafycurs5b"><a name="rbafycurs5b"><!-- --></a>
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<!-- Java sync-link --><script language="Javascript" src="../rzahg/synch.js" type="text/javascript"></script>
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<h1 class="topictitle1">Step 5b: Delete the current row</h1>
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<div><p>When your program has retrieved the current row, you can delete
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the row by using the DELETE statement. To do this, you issue a DELETE statement
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designed for use with a cursor; the WHERE CURRENT OF clause specifies a cursor
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that points to the row you want to delete.</p>
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<div class="section"><p>The DELETE ... WHERE CURRENT OF statement looks like this:</p>
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<pre>EXEC SQL
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<strong>DELETE FROM</strong> table-name
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<strong>WHERE CURRENT OF</strong> cursor-name
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END-EXEC.</pre>
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</div>
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<div class="section"><p>When used with a cursor, the DELETE statement:</p>
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<ul><li>Deletes only one row—the current row</li>
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<li>Uses the WHERE CURRENT OF clause to identify a cursor that points to the
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row to be deleted</li>
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</ul>
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</div>
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<div class="section"><p>After you delete a row, you cannot update or delete another row
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using that cursor until you issue a FETCH statement to position the cursor.</p>
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</div>
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<div class="section"><p>You can use the DELETE statement to delete all rows
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that meet a specific search condition. You can also use the FETCH and DELETE.
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WHERE CURRENT OF statements when you want to obtain a copy of the row, examine
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it, then delete it.</p>
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</div>
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</div>
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<div>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="rbafycursorexamp.htm" title="Suppose your program examines data about people in department D11. The following examples show the SQL statements you would include in a program to define and use a serial and a scrollable cursor.">Examples: Use a cursor</a></div>
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</div>
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</div>
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</body>
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</html>
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