{"id":5750,"date":"2024-11-14T08:43:45","date_gmt":"2024-11-14T00:43:45","guid":{"rendered":"https:\/\/fwq.ai\/blog\/5750\/"},"modified":"2024-11-14T08:43:45","modified_gmt":"2024-11-14T00:43:45","slug":"oracle%e6%80%8e%e4%b9%88%e5%88%9b%e5%bb%ba%e8%87%aa%e5%a2%9e%e5%ba%8f%e5%88%97","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/5750\/","title":{"rendered":"oracle\u600e\u4e48\u521b\u5efa\u81ea\u589e\u5e8f\u5217"},"content":{"rendered":"<blockquote><p>\n  \u5728 oracle \u6570\u636e\u5e93\u4e2d\u521b\u5efa\u81ea\u589e\u5e8f\u5217\u53ea\u9700\u4ee5\u4e0b\u6b65\u9aa4\uff1a\u8fde\u63a5\u5230\u6570\u636e\u5e93\u3002\u4f7f\u7528 create sequence \u8bed\u6cd5\u521b\u5efa\u5e8f\u5217\uff0c\u6307\u5b9a\u5e8f\u5217\u540d\u3001\u8d77\u59cb\u503c\u3001\u589e\u91cf\u503c\u3001\u6700\u5927\u503c\u548c\u6700\u5c0f\u503c\u3002\u4f7f\u7528 select \u67e5\u8be2\u67e5\u770b\u5df2\u521b\u5efa\u7684\u5e8f\u5217\u3002\u4f7f\u7528 nextval \u51fd\u6570\u83b7\u53d6\u5e8f\u5217\u7684\u4e0b\u4e00\u4e2a\u503c\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202405\/30\/2024053022002555767.jpg\" class=\"aligncenter\" title=\"oracle\u600e\u4e48\u521b\u5efa\u81ea\u589e\u5e8f\u5217\u63d2\u56fe\" alt=\"oracle\u600e\u4e48\u521b\u5efa\u81ea\u589e\u5e8f\u5217\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u4f7f\u7528 Oracle \u521b\u5efa\u81ea\u589e\u5e8f\u5217\uff1f<\/strong><\/p>\n<p>\u5728 Oracle \u6570\u636e\u5e93\u4e2d\u521b\u5efa\u81ea\u589e\u5e8f\u5217\u975e\u5e38\u7b80\u5355\uff0c\u53ef\u4f7f\u7528\u4ee5\u4e0b\u6b65\u9aa4\uff1a<\/p>\n<ol>\n<li> <strong>\u8fde\u63a5\u5230\u6570\u636e\u5e93\uff1a<\/strong>\u4f7f\u7528 SQL*Plus \u6216\u5176\u4ed6\u5de5\u5177\u8fde\u63a5\u5230 Oracle \u6570\u636e\u5e93\u3002<\/li>\n<li> <strong>\u521b\u5efa\u5e8f\u5217\uff1a<\/strong>\u4f7f\u7528\u4ee5\u4e0b\u8bed\u6cd5\u521b\u5efa\u5e8f\u5217\uff1a<\/li>\n<\/ol>\n<pre>CREATE SEQUENCE &lt;\u5e8f\u5217\u540d&gt;\nSTART WITH &lt;\u8d77\u59cb\u503c&gt;\nINCREMENT BY &lt;\u589e\u91cf\u503c&gt;\nMAXVALUE &lt;\u6700\u5927\u503c&gt;\nMINVALUE &lt;\u6700\u5c0f\u503c&gt;\nNOCYCLE;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u5176\u4e2d\uff1a<\/p>\n<ul>\n<li>\uff1a\u5e8f\u5217\u7684\u540d\u79f0\u3002<\/li>\n<li>\uff1a\u5e8f\u5217\u7684\u8d77\u59cb\u503c\u3002<\/li>\n<li>\uff1a\u5e8f\u5217\u7684\u589e\u91cf\u503c\uff0c\u9ed8\u8ba4\u4e3a 1\u3002<\/li>\n<li>\uff1a\u5e8f\u5217\u7684\u6700\u5927\u503c\uff0c\u9ed8\u8ba4\u4e3a\u65e0\u7a77\u5927\u3002<\/li>\n<li>\uff1a\u5e8f\u5217\u7684\u6700\u5c0f\u503c\uff0c\u9ed8\u8ba4\u4e3a 1\u3002<\/li>\n<li>NOCYCLE\uff1a\u6307\u5b9a\u5e8f\u5217\u8fbe\u5230\u6700\u5927\u503c\u540e\u4e0d\u5faa\u73af\u3002<\/li>\n<\/ul>\n<p>\u4f8b\u5982\uff0c\u8981\u521b\u5efa\u4e00\u4e2a\u540d\u4e3a MY_SEQUENCE \u7684\u5e8f\u5217\uff0c\u8d77\u59cb\u503c\u4e3a 1\uff0c\u589e\u91cf\u503c\u4e3a 2\uff0c\u6700\u5927\u503c\u4e3a 10000\uff0c\u4f9d\u6b21\u7c7b\u63a8\uff1a<\/p>\n<pre>CREATE SEQUENCE MY_SEQUENCE\nSTART WITH 1\nINCREMENT BY 2\nMAXVALUE 10000\nNOCYCLE;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<ol>\n<li> <strong>\u67e5\u770b\u5e8f\u5217\uff1a<\/strong>\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u67e5\u8be2\u67e5\u770b\u5df2\u521b\u5efa\u7684\u5e8f\u5217\uff1a<\/li>\n<\/ol>\n<pre>SELECT sequence_name, min_value, max_value, increment_by\nFROM user_sequences\nWHERE sequence_name = '&lt;\u5e8f\u5217\u540d&gt;';<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4f8b\u5982\uff0c\u8981\u67e5\u770b MY_SEQUENCE \u5e8f\u5217\u7684\u4fe1\u606f\uff0c\u4f9d\u6b21\u7c7b\u63a8\uff1a<\/p>\n<pre>SELECT sequence_name, min_value, max_value, increment_by\nFROM user_sequences\nWHERE sequence_name = 'MY_SEQUENCE';<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<ol>\n<li> <strong>\u4f7f\u7528\u5e8f\u5217\uff1a<\/strong>\u53ef\u4ee5\u4f7f\u7528 NEXTVAL \u51fd\u6570\u83b7\u53d6\u5e8f\u5217\u7684\u4e0b\u4e00\u4e2a\u503c\uff1a<\/li>\n<\/ol>\n<pre>SELECT NEXTVAL('&lt;\u5e8f\u5217\u540d&gt;');<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4f8b\u5982\uff0c\u8981\u83b7\u53d6 MY_SEQUENCE \u5e8f\u5217\u7684\u4e0b\u4e00\u4e2a\u503c\uff0c\u4f9d\u6b21\u7c7b\u63a8\uff1a<\/p>\n<pre>SELECT NEXTVAL('MY_SEQUENCE');<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4ee5\u4e0a\u5c31\u662f\u600e\u4e48\u521b\u5efa\u81ea\u589e\u5e8f\u5217\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>\u5728 oracle \u6570\u636e\u5e93\u4e2d\u521b\u5efa\u81ea\u589e\u5e8f\u5217\u53ea\u9700\u4ee5\u4e0b\u6b65\u9aa4\uff1a\u8fde\u63a5\u5230\u6570\u636e\u5e93\u3002\u4f7f\u7528 create sequence \u8bed\u6cd5\u521b\u5efa\u5e8f\u5217\uff0c\u6307\u5b9a\u5e8f\u5217\u540d\u3001\u8d77\u59cb\u503c\u3001\u589e\u91cf\u503c\u3001\u6700\u5927\u503c\u548c\u6700\u5c0f\u503c\u3002\u4f7f\u7528 select \u67e5\u8be2\u67e5\u770b\u5df2\u521b\u5efa\u7684\u5e8f\u5217\u3002\u4f7f\u7528 nextval \u51fd\u6570\u83b7\u53d6\u5e8f\u5217\u7684\u4e0b\u4e00\u4e2a\u503c\u3002 \u5982\u4f55\u4f7f\u7528 Oracle \u521b\u5efa\u81ea\u589e\u5e8f\u5217\uff1f \u5728 Oracle \u6570\u636e\u5e93\u4e2d\u521b\u5efa\u81ea\u589e\u5e8f\u5217\u975e\u5e38\u7b80\u5355\uff0c\u53ef\u4f7f\u7528\u4ee5\u4e0b\u6b65\u9aa4\uff1a \u8fde\u63a5\u5230\u6570\u636e\u5e93\uff1a\u4f7f\u7528 SQL*Plus \u6216\u5176\u4ed6\u5de5\u5177\u8fde\u63a5\u5230 Oracle \u6570\u636e\u5e93\u3002 \u521b\u5efa\u5e8f\u5217\uff1a\u4f7f\u7528\u4ee5\u4e0b\u8bed\u6cd5\u521b\u5efa\u5e8f\u5217\uff1a CREATE SEQUENCE &lt;\u5e8f\u5217\u540d&gt; START WITH &lt;\u8d77\u59cb\u503c&gt; INCREMENT BY &lt;\u589e\u91cf\u503c&gt; MAXVALUE &lt;\u6700\u5927\u503c&gt; MINVALUE &lt;\u6700\u5c0f\u503c&gt; NOCYCLE; \u767b\u5f55\u540e\u590d\u5236 \u5176\u4e2d\uff1a \uff1a\u5e8f\u5217\u7684\u540d\u79f0\u3002 \uff1a\u5e8f\u5217\u7684\u8d77\u59cb\u503c\u3002 \uff1a\u5e8f\u5217\u7684\u589e\u91cf\u503c\uff0c\u9ed8\u8ba4\u4e3a 1\u3002 \uff1a\u5e8f\u5217\u7684\u6700\u5927\u503c\uff0c\u9ed8\u8ba4\u4e3a\u65e0\u7a77\u5927\u3002 \uff1a\u5e8f\u5217\u7684\u6700\u5c0f\u503c\uff0c\u9ed8\u8ba4\u4e3a 1\u3002 NOCYCLE\uff1a\u6307\u5b9a\u5e8f\u5217\u8fbe\u5230\u6700\u5927\u503c\u540e\u4e0d\u5faa\u73af\u3002 \u4f8b\u5982\uff0c\u8981\u521b\u5efa\u4e00\u4e2a\u540d\u4e3a MY_SEQUENCE \u7684\u5e8f\u5217\uff0c\u8d77\u59cb\u503c\u4e3a 1\uff0c\u589e\u91cf\u503c\u4e3a 2\uff0c\u6700\u5927\u503c\u4e3a 10000\uff0c\u4f9d\u6b21\u7c7b\u63a8\uff1a CREATE SEQUENCE MY_SEQUENCE [&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-5750","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/5750","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=5750"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/5750\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=5750"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=5750"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=5750"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}