{"id":1628,"date":"2016-03-15T14:58:15","date_gmt":"2016-03-15T06:58:15","guid":{"rendered":"http:\/\/www.821121.com\/?p=1628"},"modified":"2022-04-21T14:58:30","modified_gmt":"2022-04-21T06:58:30","slug":"oracle%e4%b8%adloop%e5%be%aa%e7%8e%af%e7%94%a8%e6%b3%95","status":"publish","type":"post","link":"http:\/\/www.821121.com\/?p=1628","title":{"rendered":"Oracle\u4e2dloop\u5faa\u73af\u7528\u6cd5"},"content":{"rendered":"<h2>\u57fa\u672cloop\u5faa\u73af\u7684\u7528\u6cd5<\/h2>\n<h4>1.\u4f7f\u7528EXIT...WHEN\u6765\u5224\u65ad\u662f\u5426\u5faa\u73af\u7ed3\u675f<\/h4>\n<pre><code class=\"language-sql\">declare i number := 0; --\u5b9a\u4e49\u53d8\u91cf\u53ca\u521d\u59cb\u503c\nbegin\n  &lt;&lt;a&gt;&gt; --\u8bbe\u7f6e\u5faa\u73af\u540d\u79f0a\n  loop \n    i := i + 1; --\u8bbe\u7f6e\u5faa\u73af\u8bed\u53e5\n    exit a when i &gt; 10; --\u8bbe\u7f6e\u9000\u51fa\u5faa\u73afa\u7684\u6761\u4ef6\n    insert into child values(i);  \n  end loop;\n  commit;\nend;\n\/<\/code><\/pre>\n<h4>2.\u4f7f\u7528IF\u8bed\u53e5\u5224\u65ad\u662f\u5426\u5faa\u73af\u7ed3\u675f<\/h4>\n<pre><code class=\"language-sql\">declare i number;--\u58f0\u660e\u53d8\u91cf\nbegin \n  i := 0;\n  &lt;&lt;a&gt;&gt; --\u8bbe\u7f6e\u5faa\u73af\u540d\u79f0\n  loop\n    i := i + 1; --\u5faa\u73af\u4f53\n    insert into child values(i);\n    if i &gt;10 then --\u9000\u51fa\u5faa\u73afa\u7684\u6761\u4ef6\n       exit a;\n    end if;\n  end loop;\n  commit;\nend;\n\/<\/code><\/pre>\n<h4>3.WHILE...LOOP\u5faa\u73af<\/h4>\n<pre><code class=\"language-sql\">declare i number;--\u58f0\u660e\u53d8\u91cf\nbegin\n  i := 0;\n  &lt;&lt;a&gt;&gt; --\u8bbe\u7f6e\u5faa\u73af\u540d\u79f0\n  while i &lt; 10 --\u8fdb\u5165\u5faa\u73af\u6761\u4ef6\n  loop\n    i := i + 1; --\u5faa\u73af\u4f53\n    insert into child values(i);  \n  end loop;\n  commit;\nend;\n\/<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u57fa\u672cloop\u5faa\u73af\u7684\u7528\u6cd5 1.\u4f7f\u7528EXIT&#8230;WH<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-1628","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"http:\/\/www.821121.com\/index.php?rest_route=\/wp\/v2\/posts\/1628","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.821121.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.821121.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.821121.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.821121.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1628"}],"version-history":[{"count":6,"href":"http:\/\/www.821121.com\/index.php?rest_route=\/wp\/v2\/posts\/1628\/revisions"}],"predecessor-version":[{"id":1713,"href":"http:\/\/www.821121.com\/index.php?rest_route=\/wp\/v2\/posts\/1628\/revisions\/1713"}],"wp:attachment":[{"href":"http:\/\/www.821121.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1628"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.821121.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1628"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.821121.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1628"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}