{"id":199987,"date":"2025-05-06T11:05:42","date_gmt":"2025-05-06T03:05:42","guid":{"rendered":"https:\/\/server.hk\/cnblog\/199987\/"},"modified":"2025-05-06T11:05:42","modified_gmt":"2025-05-06T03:05:42","slug":"%e5%88%86%e6%9e%90oracle%e8%a1%a8%e9%94%81%e4%ba%a7%e7%94%9f%e7%9a%84%e5%8e%9f%e5%9b%a0","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/199987\/","title":{"rendered":"\u5206\u6790Oracle\u8868\u9501\u4ea7\u751f\u7684\u539f\u56e0"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>\u5206\u6790Oracle\u8868\u9501\u4ea7\u751f\u7684\u539f\u56e0<\/h1>\n<p>\u672c\u7bc7\u6587\u7ae0\u4e3b\u8981\u662f\u7ed3\u5408\u6211\u4e4b\u524d\u9762\u8bd5\u7684\u5404\u79cd\u7ecf\u5386\u548c\u5b9e\u6218\u5f00\u53d1\u4e2d\u9047\u5230\u7684\u95ee\u9898\u89e3\u51b3\u7ecf\u9a8c\u6574\u7406\u7684\uff0c\u5e0c\u671b\u8fd9\u7bc7\u300a\u5206\u6790Oracle\u8868\u9501\u4ea7\u751f\u7684\u539f\u56e0\u300b\u5bf9\u4f60\u6709\u5f88\u5927\u5e2e\u52a9\uff01\u6b22\u8fce\u6536\u85cf\uff0c\u5206\u4eab\u7ed9\u66f4\u591a\u7684\u9700\u8981\u7684\u670b\u53cb\u5b66\u4e60~<\/p>\n<p>\u6df1\u5165\u7406\u89e3Oracle\u9501\u8868\u539f\u56e0\u5206\u6790\uff0c\u9700\u8981\u5177\u4f53\u4ee3\u7801\u793a\u4f8b<\/p>\n<p>\u968f\u7740\u4f01\u4e1a\u6570\u636e\u5e93\u89c4\u6a21\u7684\u4e0d\u65ad\u589e\u957f\u548c\u590d\u6742\u6027\u7684\u52a0\u6df1\uff0c\u6570\u636e\u5e93\u9501\u8868\u95ee\u9898\u9010\u6e10\u6210\u4e3a\u6570\u636e\u5e93\u7ba1\u7406\u5458\u4ee5\u53ca\u5f00\u53d1\u4eba\u5458\u9700\u8981\u9762\u5bf9\u548c\u89e3\u51b3\u7684\u91cd\u8981\u6311\u6218\u4e4b\u4e00\u3002\u5728Oracle\u6570\u636e\u5e93\u4e2d\uff0c\u9501\u8868\u662f\u6307\u5f53\u4e00\u4e2a\u4f1a\u8bdd\u83b7\u53d6\u4e86\u5bf9\u67d0\u4e2a\u8868\u6216\u8005\u884c\u7684\u9501\u4e4b\u540e\uff0c\u5176\u4ed6\u4f1a\u8bdd\u65e0\u6cd5\u518d\u5bf9\u8be5\u8868\u6216\u8005\u884c\u8fdb\u884c\u76f8\u5e94\u7684\u64cd\u4f5c\uff0c\u4ece\u800c\u5bfc\u81f4\u5e76\u53d1\u8bbf\u95ee\u51b2\u7a81\u548c\u6027\u80fd\u4e0b\u964d\u7684\u73b0\u8c61\u3002<\/p>\n<p>Oracle\u6570\u636e\u5e93\u63d0\u4f9b\u4e86\u591a\u79cd\u7c7b\u578b\u7684\u9501\uff0c\u5305\u62ec\u884c\u7ea7\u9501\u3001\u8868\u7ea7\u9501\u7b49\uff0c\u6839\u636e\u4e1a\u52a1\u9700\u6c42\u548c\u5e76\u53d1\u8bbf\u95ee\u60c5\u51b5\uff0c\u5408\u7406\u9009\u62e9\u548c\u4f7f\u7528\u9501\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002\u5728\u672c\u6587\u4e2d\uff0c\u6211\u4eec\u5c06\u6df1\u5165\u7406\u89e3Oracle\u9501\u8868\u7684\u539f\u56e0\uff0c\u5e76\u901a\u8fc7\u5177\u4f53\u7684\u4ee3\u7801\u793a\u4f8b\u6765\u6f14\u793a\u6211\u4eec\u5206\u6790\u9501\u8868\u95ee\u9898\u7684\u8fc7\u7a0b\u548c\u89e3\u51b3\u65b9\u6cd5\u3002<\/p>\n<h2>1. \u9501\u8868\u539f\u56e0\u5206\u6790<\/h2>\n<h3>1.1 \u4e8b\u52a1\u672a\u63d0\u4ea4\u6216\u957f\u4e8b\u52a1<\/h3>\n<p>\u4e00\u4e2a\u5e38\u89c1\u7684\u9501\u8868\u539f\u56e0\u662f\u7531\u4e8e\u4e8b\u52a1\u672a\u63d0\u4ea4\u6216\u8005\u5b58\u5728\u957f\u65f6\u95f4\u8fd0\u884c\u7684\u4e8b\u52a1\u3002\u5f53\u4e00\u4e2a\u4e8b\u52a1\u5728\u64cd\u4f5c\u4e00\u5f20\u8868\u65f6\u6301\u6709\u9501\uff0c\u5e76\u4e14\u672a\u63d0\u4ea4\u6216\u8005\u6301\u6709\u9501\u7684\u65f6\u95f4\u8fc7\u957f\uff0c\u4f1a\u5bfc\u81f4\u5176\u4ed6\u4f1a\u8bdd\u65e0\u6cd5\u8bbf\u95ee\u8be5\u8868\uff0c\u4ece\u800c\u5f15\u53d1\u9501\u8868\u95ee\u9898\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n<pre>-- \u4f1a\u8bddA\u5f00\u542f\u4e8b\u52a1\u5e76\u66f4\u65b0\u8868t1\nBEGIN\n    UPDATE t1 SET column1 = 'value' WHERE id = 1;\n    -- \u672a\u63d0\u4ea4\u4e8b\u52a1\nEND;<\/pre>\n<h3>1.2 \u7b49\u5f85\u8d44\u6e90<\/h3>\n<p>\u53e6\u4e00\u4e2a\u5e38\u89c1\u7684\u9501\u8868\u539f\u56e0\u662f\u4f1a\u8bdd\u4e4b\u95f4\u56e0\u4e3a\u7b49\u5f85\u8d44\u6e90\u800c\u5bfc\u81f4\u9501\u8868\u3002\u4f8b\u5982\uff0c\u4e00\u4e2a\u4f1a\u8bdd\u5728\u64cd\u4f5c\u4e00\u5f20\u8868\u65f6\u5df2\u7ecf\u6301\u6709\u5199\u9501\uff0c\u800c\u53e6\u4e00\u4e2a\u4f1a\u8bdd\u4e5f\u5c1d\u8bd5\u5bf9\u540c\u4e00\u8868\u8fdb\u884c\u5199\u64cd\u4f5c\uff0c\u5c31\u4f1a\u51fa\u73b0\u7b49\u5f85\u8d44\u6e90\u7684\u60c5\u51b5\uff0c\u9020\u6210\u9501\u8868\u95ee\u9898\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n<pre>-- \u4f1a\u8bddA\u5f00\u542f\u4e8b\u52a1\u5e76\u66f4\u65b0\u8868t1\nBEGIN\n    UPDATE t1 SET column1 = 'value' WHERE id = 1 FOR UPDATE;\n    COMMIT;\nEND;\n\n-- \u4f1a\u8bddB\u5c1d\u8bd5\u66f4\u65b0\u8868t1\nUPDATE t1 SET column1 = 'new_value' WHERE id = 1;<\/pre>\n<h2>2. \u9501\u8868\u89e3\u51b3\u65b9\u6cd5<\/h2>\n<h3>2.1 \u63d0\u4ea4\u957f\u4e8b\u52a1<\/h3>\n<p>\u9488\u5bf9\u4e8b\u52a1\u672a\u63d0\u4ea4\u6216\u957f\u4e8b\u52a1\u5bfc\u81f4\u7684\u9501\u8868\u95ee\u9898\uff0c\u6700\u6709\u6548\u7684\u89e3\u51b3\u65b9\u6cd5\u662f\u53ca\u65f6\u63d0\u4ea4\u957f\u4e8b\u52a1\uff0c\u91ca\u653e\u9501\u8d44\u6e90\u3002\u5728\u5f00\u53d1\u548c\u8fd0\u7ef4\u8fc7\u7a0b\u4e2d\uff0c\u8981\u53ca\u65f6\u76d1\u63a7\u957f\u4e8b\u52a1\u7684\u60c5\u51b5\uff0c\u907f\u514d\u957f\u65f6\u95f4\u5360\u7528\u6570\u636e\u5e93\u8d44\u6e90\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n<pre>-- \u4f1a\u8bddA\u5f00\u542f\u4e8b\u52a1\u5e76\u66f4\u65b0\u8868t1\nBEGIN\n    UPDATE t1 SET column1 = 'value' WHERE id = 1;\n    COMMIT;\nEND;<\/pre>\n<h3>2.2 \u4f7f\u7528\u5408\u9002\u7684\u9501\u5b9a\u7ea7\u522b<\/h3>\n<p>\u9488\u5bf9\u7b49\u5f85\u8d44\u6e90\u5bfc\u81f4\u7684\u9501\u8868\u95ee\u9898\uff0c\u53ef\u4ee5\u8003\u8651\u4f7f\u7528\u4e0d\u540c\u7684\u9501\u5b9a\u7ea7\u522b\u6765\u51cf\u5c11\u9501\u51b2\u7a81\u7684\u53ef\u80fd\u6027\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u901a\u8fc7\u8bbe\u7f6e\u4e8b\u52a1\u7684\u9694\u79bb\u7ea7\u522b\u4e3aREAD COMMITTED\uff0c\u51cf\u5c11\u9501\u5b9a\u8303\u56f4\uff0c\u63d0\u9ad8\u5e76\u53d1\u8bbf\u95ee\u6027\u80fd\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n<pre>-- \u8bbe\u7f6e\u4e8b\u52a1\u9694\u79bb\u7ea7\u522b\u4e3aREAD COMMITTED\nSET TRANSACTION ISOLATION LEVEL READ COMMITTED;<\/pre>\n<h2>3. \u603b\u7ed3<\/h2>\n<p>\u901a\u8fc7\u4ee5\u4e0a\u5206\u6790\u548c\u793a\u4f8b\uff0c\u6211\u4eec\u53ef\u4ee5\u6df1\u5165\u7406\u89e3Oracle\u9501\u8868\u7684\u539f\u56e0\u4ee5\u53ca\u89e3\u51b3\u65b9\u6cd5\u3002\u5728\u5b9e\u9645\u7684\u6570\u636e\u5e93\u5e94\u7528\u4e2d\uff0c\u8981\u6ce8\u610f\u5408\u7406\u4f7f\u7528\u9501\u3001\u907f\u514d\u957f\u4e8b\u52a1\u3001\u9009\u62e9\u5408\u9002\u7684\u9501\u5b9a\u7ea7\u522b\u7b49\uff0c\u4ee5\u786e\u4fdd\u6570\u636e\u5e93\u7684\u9ad8\u6548\u6027\u548c\u7a33\u5b9a\u6027\u3002\u53ea\u6709\u901a\u8fc7\u4e0d\u65ad\u7684\u76d1\u63a7\u548c\u4f18\u5316\uff0c\u624d\u80fd\u6709\u6548\u5730\u89e3\u51b3\u6570\u636e\u5e93\u9501\u8868\u95ee\u9898\uff0c\u63d0\u5347\u7cfb\u7edf\u7684\u6027\u80fd\u548c\u53ef\u9760\u6027\u3002<\/p>\n<p>\u672c\u7bc7\u5173\u4e8e\u300a\u5206\u6790Oracle\u8868\u9501\u4ea7\u751f\u7684\u539f\u56e0\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\u4e3b\u673a\u5b9d\u8d1d\u516c\u4f17\u53f7\uff01<\/p>\n<dl>\n<dt>\n <\/dt>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"<p>\u5206\u6790Oracle\u8868\u9501\u4ea7\u751f\u7684\u539f\u56e0 &#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-199987","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/199987","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=199987"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/199987\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=199987"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=199987"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=199987"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}