{"id":5003,"date":"2024-11-14T11:40:45","date_gmt":"2024-11-14T03:40:45","guid":{"rendered":"https:\/\/fwq.ai\/blog\/5003\/"},"modified":"2024-11-14T11:40:45","modified_gmt":"2024-11-14T03:40:45","slug":"oracle%e5%be%aa%e7%8e%af%e8%af%ad%e5%8f%a5%e6%80%8e%e4%b9%88%e5%86%99","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/5003\/","title":{"rendered":"oracle\u5faa\u73af\u8bed\u53e5\u600e\u4e48\u5199"},"content":{"rendered":"<blockquote><p>\n  oracle\u63d0\u4f9b\u4e86\u4e24\u79cd\u7c7b\u578b\u7684\u5faa\u73af\u8bed\u53e5\uff0c\u7528\u4e8e\u91cd\u590d\u6267\u884c\u4ee3\u7801\uff1awhile\u5faa\u73af\uff1a\u53cd\u590d\u6267\u884c\u4ee3\u7801\uff0c\u76f4\u5230\u6761\u4ef6\u4e0d\u6ee1\u8db3\u4e3a\u6b62\u3002for\u5faa\u73af\uff1a\u5c06\u5faa\u73af\u53d8\u91cf\u8bbe\u7f6e\u4e3a\u6307\u5b9a\u8303\u56f4\u5185\u7684\u503c\uff0c\u7136\u540e\u6267\u884c\u4ee3\u7801\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202405\/21\/2024052109571981636.jpg\" class=\"aligncenter\" title=\"oracle\u5faa\u73af\u8bed\u53e5\u600e\u4e48\u5199\u63d2\u56fe\" alt=\"oracle\u5faa\u73af\u8bed\u53e5\u600e\u4e48\u5199\u63d2\u56fe\" \/><\/p>\n<p><strong>Oracle\u5faa\u73af\u8bed\u53e5<\/strong><\/p>\n<p>Oracle\u4e2d\u7684\u5faa\u73af\u8bed\u53e5\u7528\u4e8e\u91cd\u590d\u6267\u884c\u4e00\u6bb5\u4ee3\u7801\uff0c\u76f4\u5230\u6ee1\u8db3\u7279\u5b9a\u6761\u4ef6\u4e3a\u6b62\u3002\u5faa\u73af\u8bed\u53e5\u6709\u4e24\u79cd\u7c7b\u578b\uff1a<\/p>\n<p><strong>1. WHILE\u5faa\u73af<\/strong><\/p>\n<p><strong>\u8bed\u6cd5\uff1a<\/strong><\/p>\n<pre>WHILE condition DO\n    -- \u8981\u6267\u884c\u7684\u4ee3\u7801\nEND WHILE;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u8bf4\u660e\uff1a<\/strong><\/p>\n<ul>\n<li>WHILE\u5faa\u73af\u4f1a\u53cd\u590d\u6267\u884c\u4ee3\u7801\u5757\uff0c\u76f4\u5230\u6307\u5b9a\u7684\u6761\u4ef6\u4e3afalse\u4e3a\u6b62\u3002<\/li>\n<li>\u5faa\u73af\u6761\u4ef6\u5fc5\u987b\u662f\u4e00\u4e2a\u5e03\u5c14\u8868\u8fbe\u5f0f\u3002<\/li>\n<\/ul>\n<p><strong>2. FOR\u5faa\u73af<\/strong><\/p>\n<p><strong>\u8bed\u6cd5\uff1a<\/strong><\/p>\n<pre>FOR loop_variable IN (start_value, end_value) DO\n    -- \u8981\u6267\u884c\u7684\u4ee3\u7801\nEND FOR;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u8bf4\u660e\uff1a<\/strong><\/p>\n<ul>\n<li>FOR\u5faa\u73af\u4f1a\u53cd\u590d\u6267\u884c\u4ee3\u7801\u5757\uff0c\u540c\u65f6\u5c06\u5faa\u73af\u53d8\u91cfloop_variable\u7684\u503c\u4f9d\u6b21\u8bbe\u7f6e\u4e3astart_value\u5230end_value\u7684\u8303\u56f4\u5185\u7684\u6bcf\u4e2a\u503c\u3002<\/li>\n<li>start_value\u548cend_value\u5fc5\u987b\u662f\u6570\u5b57\u6216\u65e5\u671f\u7c7b\u578b\u3002<\/li>\n<li>\u5faa\u73af\u53d8\u91cf\u53ea\u80fd\u5728\u5faa\u73af\u4f53\u5185\u90e8\u4f7f\u7528\u3002<\/li>\n<\/ul>\n<p><strong>\u793a\u4f8b\uff1a<\/strong><\/p>\n<p><strong>WHILE\u5faa\u73af\uff1a<\/strong><\/p>\n<pre>DECLARE i NUMBER := 1;\nBEGIN\n  WHILE i &lt;= 10 DO\n    DBMS_OUTPUT.PUT_LINE(i);\n    i := i + 1;\n  END WHILE;\nEND;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u8fd0\u884c\u7ed3\u679c\uff1a<\/p>\n<pre>1\n2\n3\n4\n5\n6\n7\n8\n9\n10<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>FOR\u5faa\u73af\uff1a<\/strong><\/p>\n<pre>DECLARE sum NUMBER := 0;\nBEGIN\n  FOR i IN (1, 100) DO\n    sum := sum + i;\n  END FOR;\n  DBMS_OUTPUT.PUT_LINE('Sum of numbers from 1 to 100: ' || sum);\nEND;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u8fd0\u884c\u7ed3\u679c\uff1a<\/p>\n<pre>Sum of numbers from 1 to 100: 5050<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4ee5\u4e0a\u5c31\u662f\u5faa\u73af\u8bed\u53e5\u600e\u4e48\u5199\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u7f51\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>oracle\u63d0\u4f9b\u4e86\u4e24\u79cd\u7c7b\u578b\u7684\u5faa\u73af\u8bed\u53e5\uff0c\u7528\u4e8e\u91cd\u590d\u6267\u884c\u4ee3\u7801\uff1awhile\u5faa\u73af\uff1a\u53cd\u590d\u6267\u884c\u4ee3\u7801\uff0c\u76f4\u5230\u6761\u4ef6\u4e0d\u6ee1\u8db3\u4e3a\u6b62\u3002for\u5faa\u73af\uff1a\u5c06\u5faa\u73af\u53d8\u91cf\u8bbe\u7f6e\u4e3a\u6307\u5b9a\u8303\u56f4\u5185\u7684\u503c\uff0c\u7136\u540e\u6267\u884c\u4ee3\u7801\u3002 Oracle\u5faa\u73af\u8bed\u53e5 Oracle\u4e2d\u7684\u5faa\u73af\u8bed\u53e5\u7528\u4e8e\u91cd\u590d\u6267\u884c\u4e00\u6bb5\u4ee3\u7801\uff0c\u76f4\u5230\u6ee1\u8db3\u7279\u5b9a\u6761\u4ef6\u4e3a\u6b62\u3002\u5faa\u73af\u8bed\u53e5\u6709\u4e24\u79cd\u7c7b\u578b\uff1a 1. WHILE\u5faa\u73af \u8bed\u6cd5\uff1a WHILE condition DO &#8212; \u8981\u6267\u884c\u7684\u4ee3\u7801 END WHILE; \u767b\u5f55\u540e\u590d\u5236 \u8bf4\u660e\uff1a WHILE\u5faa\u73af\u4f1a\u53cd\u590d\u6267\u884c\u4ee3\u7801\u5757\uff0c\u76f4\u5230\u6307\u5b9a\u7684\u6761\u4ef6\u4e3afalse\u4e3a\u6b62\u3002 \u5faa\u73af\u6761\u4ef6\u5fc5\u987b\u662f\u4e00\u4e2a\u5e03\u5c14\u8868\u8fbe\u5f0f\u3002 2. FOR\u5faa\u73af \u8bed\u6cd5\uff1a FOR loop_variable IN (start_value, end_value) DO &#8212; \u8981\u6267\u884c\u7684\u4ee3\u7801 END FOR; \u767b\u5f55\u540e\u590d\u5236 \u8bf4\u660e\uff1a FOR\u5faa\u73af\u4f1a\u53cd\u590d\u6267\u884c\u4ee3\u7801\u5757\uff0c\u540c\u65f6\u5c06\u5faa\u73af\u53d8\u91cfloop_variable\u7684\u503c\u4f9d\u6b21\u8bbe\u7f6e\u4e3astart_value\u5230end_value\u7684\u8303\u56f4\u5185\u7684\u6bcf\u4e2a\u503c\u3002 start_value\u548cend_value\u5fc5\u987b\u662f\u6570\u5b57\u6216\u65e5\u671f\u7c7b\u578b\u3002 \u5faa\u73af\u53d8\u91cf\u53ea\u80fd\u5728\u5faa\u73af\u4f53\u5185\u90e8\u4f7f\u7528\u3002 \u793a\u4f8b\uff1a WHILE\u5faa\u73af\uff1a DECLARE i NUMBER := 1; BEGIN WHILE i &lt;= 10 DO DBMS_OUTPUT.PUT_LINE(i); i := i + 1; END [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-5003","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/5003","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=5003"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/5003\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=5003"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=5003"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=5003"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}