{"id":43770,"date":"2024-12-01T13:09:47","date_gmt":"2024-12-01T05:09:47","guid":{"rendered":"https:\/\/fwq.ai\/blog\/43770\/"},"modified":"2024-12-01T13:09:47","modified_gmt":"2024-12-01T05:09:47","slug":"%e8%a7%a3%e5%86%b3oracle%e5%ba%8f%e5%88%97%e5%8f%b7%e6%9f%a5%e8%af%a2%e5%b8%b8%e8%a7%81%e9%97%ae%e9%a2%98","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/43770\/","title":{"rendered":"\u89e3\u51b3Oracle\u5e8f\u5217\u53f7\u67e5\u8be2\u5e38\u89c1\u95ee\u9898"},"content":{"rendered":"

<\/b> <\/p>\n

\u89e3\u51b3Oracle\u5e8f\u5217\u53f7\u67e5\u8be2\u5e38\u89c1\u95ee\u9898<\/h1>\n

\u5728\u6570\u636e\u5e93\u5b9e\u6218\u5f00\u53d1\u7684\u8fc7\u7a0b\u4e2d\uff0c\u6211\u4eec\u7ecf\u5e38\u4f1a\u9047\u5230\u4e00\u4e9b\u8fd9\u6837\u90a3\u6837\u7684\u95ee\u9898\uff0c\u7136\u540e\u8981\u5361\u597d\u534a\u5929\uff0c\u7b49\u95ee\u9898\u89e3\u51b3\u4e86\u624d\u53d1\u73b0\u539f\u6765\u4e00\u4e9b\u7ec6\u8282\u77e5\u8bc6\u70b9\u8fd8\u662f\u6ca1\u6709\u638c\u63e1\u597d\u3002\u4eca\u5929\u7c73\u4e91\u5c31\u6574\u7406\u5206\u4eab\u300a\u89e3\u51b3Oracle\u5e8f\u5217\u53f7\u67e5\u8be2\u5e38\u89c1\u95ee\u9898\u300b\uff0c\u804a\u804a\uff0c\u5e0c\u671b\u53ef\u4ee5\u5e2e\u52a9\u5230\u6b63\u5728\u52aa\u529b\u8d5a\u94b1\u7684\u4f60\u3002<\/p>\n

Oracle\u5e8f\u5217\u53f7\u67e5\u8be2\u5e38\u89c1\u95ee\u9898\u89e3\u51b3\uff0c\u9700\u8981\u5177\u4f53\u4ee3\u7801\u793a\u4f8b<\/strong><\/p>\n

\u5728Oracle\u6570\u636e\u5e93\u4e2d\uff0c\u5e8f\u5217\u53f7\u662f\u4e00\u79cd\u7528\u4e8e\u751f\u6210\u552f\u4e00\u6807\u8bc6\u7b26\u7684\u5bf9\u8c61\u3002\u5728\u5b9e\u9645\u7684\u6570\u636e\u5e93\u5e94\u7528\u4e2d\uff0c\u7ecf\u5e38\u4f1a\u9047\u5230\u9700\u8981\u67e5\u8be2\u548c\u7ba1\u7406\u5e8f\u5217\u53f7\u7684\u60c5\u51b5\u3002\u672c\u6587\u5c06\u4ecb\u7ecdOracle\u6570\u636e\u5e93\u4e2d\u5e38\u89c1\u7684\u5e8f\u5217\u53f7\u67e5\u8be2\u95ee\u9898\uff0c\u5e76\u7ed9\u51fa\u76f8\u5e94\u7684\u89e3\u51b3\u65b9\u6cd5\uff0c\u5e76\u9644\u4e0a\u5177\u4f53\u7684\u4ee3\u7801\u793a\u4f8b\u3002<\/p>\n

\u95ee\u9898\u4e00\uff1a\u5982\u4f55\u67e5\u8be2\u5f53\u524d\u5e8f\u5217\u53f7\u7684\u503c\uff1f<\/strong><\/p>\n

\u8981\u67e5\u8be2\u5f53\u524d\u5e8f\u5217\u53f7\u7684\u503c\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0bSQL\u8bed\u53e5\uff1a<\/p>\n

SELECT <sequence_name>.NEXTVAL FROM DUAL;<\/pre>\n
\u8fd9\u91cc\u7684<sequence_name><\/code>\u9700\u8981\u66ff\u6362\u4e3a\u5b9e\u9645\u7684\u5e8f\u5217\u53f7\u540d\u79f0\u3002\u8fd9\u6761SQL\u8bed\u53e5\u5c06\u4f1a\u8fd4\u56de\u5e8f\u5217\u53f7\u5f53\u524d\u7684\u503c\u3002<\/p>\n
\u95ee\u9898\u4e8c\uff1a\u5982\u4f55\u67e5\u8be2\u5e8f\u5217\u53f7\u7684\u4e0b\u4e00\u4e2a\u503c\u800c\u4e0d\u9012\u589e\uff1f<\/strong><\/p>\n
\u6709\u65f6\u5019\uff0c\u6211\u4eec\u5e0c\u671b\u67e5\u8be2\u5e8f\u5217\u53f7\u7684\u4e0b\u4e00\u4e2a\u503c\uff0c\u4f46\u4e0d\u5b9e\u9645\u8ba9\u5e8f\u5217\u53f7\u81ea\u589e\u3002\u8fd9\u65f6\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0bSQL\u8bed\u53e5\uff1a<\/p>\n
SELECT <sequence_name>.CURRVAL FROM DUAL;<\/pre>\n
\u8fd9\u6761SQL\u8bed\u53e5\u4f1a\u8fd4\u56de\u5e8f\u5217\u53f7\u7684\u5f53\u524d\u503c\uff0c\u540c\u65f6\u4e0d\u4f1a\u8ba9\u5e8f\u5217\u53f7\u81ea\u589e\u3002<\/p>\n
\u95ee\u9898\u4e09\uff1a\u5982\u4f55\u91cd\u7f6e\u5e8f\u5217\u53f7\u7684\u503c\uff1f<\/strong><\/p>\n
\u6709\u65f6\u5019\uff0c\u6211\u4eec\u9700\u8981\u91cd\u7f6e\u5e8f\u5217\u53f7\u7684\u503c\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0bPL\/SQL\u4ee3\u7801\uff1a<\/p>\n
ALTER SEQUENCE <sequence_name> RESTART;<\/pre>\n
\u8fd9\u6761\u4ee3\u7801\u5c06\u4f1a\u628a\u5e8f\u5217\u53f7\u91cd\u7f6e\u4e3a\u5176\u521d\u59cb\u503c\u3002<\/p>\n
\u95ee\u9898\u56db\uff1a\u5982\u4f55\u67e5\u770b\u5e8f\u5217\u53f7\u7684\u5b9a\u4e49\u4fe1\u606f\uff1f<\/strong><\/p>\n
\u5982\u679c\u6211\u4eec\u60f3\u8981\u67e5\u770b\u5e8f\u5217\u53f7\u7684\u5b9a\u4e49\u4fe1\u606f\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0bSQL\u8bed\u53e5\uff1a<\/p>\n
SELECT SEQUENCE_OWNER, SEQUENCE_NAME, INCREMENT_BY, MIN_VALUE, MAX_VALUE\nFROM ALL_SEQUENCES\nWHERE SEQUENCE_NAME = '<sequence_name>';<\/pre>\n
\u8fd9\u6761SQL\u8bed\u53e5\u5c06\u4f1a\u8fd4\u56de\u6307\u5b9a\u5e8f\u5217\u53f7\u7684\u5b9a\u4e49\u4fe1\u606f\uff0c\u5982\u5e8f\u5217\u53f7\u7684\u6240\u6709\u8005\u3001\u589e\u91cf\u3001\u6700\u5c0f\u503c\u3001\u6700\u5927\u503c\u7b49\u3002<\/p>\n
\u95ee\u9898\u4e94\uff1a\u5982\u4f55\u5728\u8868\u4e2d\u4f7f\u7528\u5e8f\u5217\u53f7\u4f5c\u4e3a\u9ed8\u8ba4\u503c\uff1f<\/strong><\/p>\n
\u6709\u65f6\u5019\u6211\u4eec\u9700\u8981\u5728\u8868\u7684\u67d0\u4e2a\u5b57\u6bb5\u4e2d\u4f7f\u7528\u5e8f\u5217\u53f7\u4f5c\u4e3a\u9ed8\u8ba4\u503c\uff0c\u53ef\u4ee5\u8fd9\u6837\u505a\uff1a<\/p>\n
CREATE TABLE example_table (\n    id NUMBER DEFAULT <sequence_name>.NEXTVAL PRIMARY KEY,\n    name VARCHAR2(50)\n);<\/pre>\n
\u8fd9\u6837\uff0c\u5728\u63d2\u5165\u6570\u636e\u65f6\uff0c\u5982\u679c\u4e0d\u663e\u5f0f\u6307\u5b9aid\u7684\u503c\uff0c\u5c31\u4f1a\u81ea\u52a8\u4f7f\u7528\u5e8f\u5217\u53f7\u3002<\/p>\n
\u901a\u8fc7\u4ee5\u4e0a\u89e3\u51b3\u65b9\u6848\u4ee5\u53ca\u4ee3\u7801\u793a\u4f8b\uff0c\u4f60\u5e94\u8be5\u80fd\u591f\u66f4\u597d\u5730\u5e94\u5bf9Oracle\u6570\u636e\u5e93\u4e2d\u5173\u4e8e\u5e8f\u5217\u53f7\u7684\u67e5\u8be2\u95ee\u9898\u4e86\u3002\u5e0c\u671b\u672c\u6587\u5bf9\u4f60\u6709\u6240\u5e2e\u52a9\u3002<\/p>\n
\u672c\u7bc7\u5173\u4e8e\u300a\u89e3\u51b3Oracle\u5e8f\u5217\u53f7\u67e5\u8be2\u5e38\u89c1\u95ee\u9898\u300b\u7684\u4ecb\u7ecd\u5c31\u5230\u6b64\u7ed3\u675f\u5566\uff0c\u4f46\u662f\u5b66\u65e0\u6b62\u5883\uff0c\u60f3\u8981\u4e86\u89e3\u5b66\u4e60\u66f4\u591a\u5173\u4e8e\u6570\u636e\u5e93\u7684\u76f8\u5173\u77e5\u8bc6\uff0c\u8bf7\u5173\u6ce8\u7c73\u4e91\u516c\u4f17\u53f7\uff01<\/p>\n
\n
\n <\/dt>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"
\u89e3\u51b3Oracle\u5e8f\u5217\u53f7\u67e5\u8be2\u5e38\u89c1\u95ee\u9898 \u5728\u6570\u636e\u5e93\u5b9e\u6218\u5f00\u53d1\u7684\u8fc7\u7a0b\u4e2d\uff0c\u6211\u4eec\u7ecf\u5e38\u4f1a\u9047\u5230\u4e00\u4e9b\u8fd9\u6837\u90a3\u6837\u7684\u95ee\u9898\uff0c\u7136\u540e\u8981\u5361\u597d\u534a\u5929\uff0c\u7b49\u95ee\u9898\u89e3\u51b3\u4e86\u624d\u53d1\u73b0\u539f\u6765\u4e00\u4e9b\u7ec6\u8282\u77e5\u8bc6\u70b9\u8fd8\u662f\u6ca1\u6709\u638c\u63e1\u597d\u3002\u4eca\u5929\u7c73\u4e91\u5c31\u6574\u7406\u5206\u4eab\u300a\u89e3\u51b3Oracle\u5e8f\u5217\u53f7\u67e5\u8be2\u5e38\u89c1\u95ee\u9898\u300b\uff0c\u804a\u804a\uff0c\u5e0c\u671b\u53ef\u4ee5\u5e2e\u52a9\u5230\u6b63\u5728\u52aa\u529b\u8d5a\u94b1\u7684\u4f60\u3002 Oracle\u5e8f\u5217\u53f7\u67e5\u8be2\u5e38\u89c1\u95ee\u9898\u89e3\u51b3\uff0c\u9700\u8981\u5177\u4f53\u4ee3\u7801\u793a\u4f8b \u5728Oracle\u6570\u636e\u5e93\u4e2d\uff0c\u5e8f\u5217\u53f7\u662f\u4e00\u79cd\u7528\u4e8e\u751f\u6210\u552f\u4e00\u6807\u8bc6\u7b26\u7684\u5bf9\u8c61\u3002\u5728\u5b9e\u9645\u7684\u6570\u636e\u5e93\u5e94\u7528\u4e2d\uff0c\u7ecf\u5e38\u4f1a\u9047\u5230\u9700\u8981\u67e5\u8be2\u548c\u7ba1\u7406\u5e8f\u5217\u53f7\u7684\u60c5\u51b5\u3002\u672c\u6587\u5c06\u4ecb\u7ecdOracle\u6570\u636e\u5e93\u4e2d\u5e38\u89c1\u7684\u5e8f\u5217\u53f7\u67e5\u8be2\u95ee\u9898\uff0c\u5e76\u7ed9\u51fa\u76f8\u5e94\u7684\u89e3\u51b3\u65b9\u6cd5\uff0c\u5e76\u9644\u4e0a\u5177\u4f53\u7684\u4ee3\u7801\u793a\u4f8b\u3002 \u95ee\u9898\u4e00\uff1a\u5982\u4f55\u67e5\u8be2\u5f53\u524d\u5e8f\u5217\u53f7\u7684\u503c\uff1f \u8981\u67e5\u8be2\u5f53\u524d\u5e8f\u5217\u53f7\u7684\u503c\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0bSQL\u8bed\u53e5\uff1a SELECT <sequence_name>.NEXTVAL FROM DUAL; \u8fd9\u91cc\u7684<sequence_name>\u9700\u8981\u66ff\u6362\u4e3a\u5b9e\u9645\u7684\u5e8f\u5217\u53f7\u540d\u79f0\u3002\u8fd9\u6761SQL\u8bed\u53e5\u5c06\u4f1a\u8fd4\u56de\u5e8f\u5217\u53f7\u5f53\u524d\u7684\u503c\u3002 \u95ee\u9898\u4e8c\uff1a\u5982\u4f55\u67e5\u8be2\u5e8f\u5217\u53f7\u7684\u4e0b\u4e00\u4e2a\u503c\u800c\u4e0d\u9012\u589e\uff1f \u6709\u65f6\u5019\uff0c\u6211\u4eec\u5e0c\u671b\u67e5\u8be2\u5e8f\u5217\u53f7\u7684\u4e0b\u4e00\u4e2a\u503c\uff0c\u4f46\u4e0d\u5b9e\u9645\u8ba9\u5e8f\u5217\u53f7\u81ea\u589e\u3002\u8fd9\u65f6\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0bSQL\u8bed\u53e5\uff1a SELECT <sequence_name>.CURRVAL FROM DUAL; \u8fd9\u6761SQL\u8bed\u53e5\u4f1a\u8fd4\u56de\u5e8f\u5217\u53f7\u7684\u5f53\u524d\u503c\uff0c\u540c\u65f6\u4e0d\u4f1a\u8ba9\u5e8f\u5217\u53f7\u81ea\u589e\u3002 \u95ee\u9898\u4e09\uff1a\u5982\u4f55\u91cd\u7f6e\u5e8f\u5217\u53f7\u7684\u503c\uff1f \u6709\u65f6\u5019\uff0c\u6211\u4eec\u9700\u8981\u91cd\u7f6e\u5e8f\u5217\u53f7\u7684\u503c\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0bPL\/SQL\u4ee3\u7801\uff1a ALTER SEQUENCE <sequence_name> RESTART; \u8fd9\u6761\u4ee3\u7801\u5c06\u4f1a\u628a\u5e8f\u5217\u53f7\u91cd\u7f6e\u4e3a\u5176\u521d\u59cb\u503c\u3002 \u95ee\u9898\u56db\uff1a\u5982\u4f55\u67e5\u770b\u5e8f\u5217\u53f7\u7684\u5b9a\u4e49\u4fe1\u606f\uff1f \u5982\u679c\u6211\u4eec\u60f3\u8981\u67e5\u770b\u5e8f\u5217\u53f7\u7684\u5b9a\u4e49\u4fe1\u606f\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0bSQL\u8bed\u53e5\uff1a SELECT SEQUENCE_OWNER, SEQUENCE_NAME, INCREMENT_BY, MIN_VALUE, MAX_VALUE FROM ALL_SEQUENCES WHERE SEQUENCE_NAME = ‘<sequence_name>’; \u8fd9\u6761SQL\u8bed\u53e5\u5c06\u4f1a\u8fd4\u56de\u6307\u5b9a\u5e8f\u5217\u53f7\u7684\u5b9a\u4e49\u4fe1\u606f\uff0c\u5982\u5e8f\u5217\u53f7\u7684\u6240\u6709\u8005\u3001\u589e\u91cf\u3001\u6700\u5c0f\u503c\u3001\u6700\u5927\u503c\u7b49\u3002 \u95ee\u9898\u4e94\uff1a\u5982\u4f55\u5728\u8868\u4e2d\u4f7f\u7528\u5e8f\u5217\u53f7\u4f5c\u4e3a\u9ed8\u8ba4\u503c\uff1f \u6709\u65f6\u5019\u6211\u4eec\u9700\u8981\u5728\u8868\u7684\u67d0\u4e2a\u5b57\u6bb5\u4e2d\u4f7f\u7528\u5e8f\u5217\u53f7\u4f5c\u4e3a\u9ed8\u8ba4\u503c\uff0c\u53ef\u4ee5\u8fd9\u6837\u505a\uff1a CREATE TABLE example_table ( id NUMBER DEFAULT <sequence_name>.NEXTVAL PRIMARY KEY, name VARCHAR2(50) ); […]<\/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-43770","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/43770","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=43770"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/43770\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=43770"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=43770"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=43770"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}