{"id":173969,"date":"2024-11-07T20:27:21","date_gmt":"2024-11-07T12:27:21","guid":{"rendered":"https:\/\/server.hk\/cnblog\/173969\/"},"modified":"2024-11-07T20:27:22","modified_gmt":"2024-11-07T12:27:22","slug":"%e5%a6%82%e4%bd%95%e8%a7%a3%e6%b1%baoracle%e6%ad%bb%e9%8e%96%e5%95%8f%e9%a1%8c","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/173969\/","title":{"rendered":"\u5982\u4f55\u89e3\u6c7aOracle\u6b7b\u9396\u554f\u984c"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e8%a7%a3%e6%b1%baoracle%e6%ad%bb%e9%8e%96%e5%95%8f%e9%a1%8c-GhWiwjDLja\">\u5982\u4f55\u89e3\u6c7aOracle\u6b7b\u9396\u554f\u984c<\/h1>\n<p>\u5728\u8cc7\u6599\u5eab\u7ba1\u7406\u4e2d\uff0c\u6b7b\u9396\u662f\u4e00\u500b\u5e38\u898b\u4e14\u68d8\u624b\u7684\u554f\u984c\uff0c\u7279\u5225\u662f\u5728\u4f7f\u7528Oracle\u8cc7\u6599\u5eab\u6642\u3002\u6b7b\u9396\u767c\u751f\u5728\u5169\u500b\u6216\u591a\u500b\u4e8b\u52d9\u4e92\u76f8\u7b49\u5f85\u5c0d\u65b9\u91cb\u653e\u8cc7\u6e90\uff0c\u5c0e\u81f4\u7cfb\u7d71\u7121\u6cd5\u7e7c\u7e8c\u57f7\u884c\u3002\u672c\u6587\u5c07\u63a2\u8a0eOracle\u6b7b\u9396\u7684\u6210\u56e0\u3001\u8b58\u5225\u65b9\u6cd5\u4ee5\u53ca\u89e3\u6c7a\u65b9\u6848\u3002<\/p>\n<h2 id=\"%e6%ad%bb%e9%8e%96%e7%9a%84%e6%88%90%e5%9b%a0-GhWiwjDLja\">\u6b7b\u9396\u7684\u6210\u56e0<\/h2>\n<p>\u6b7b\u9396\u901a\u5e38\u767c\u751f\u5728\u4ee5\u4e0b\u60c5\u6cc1\uff1a<\/p>\n<ul>\n<li><strong>\u8cc7\u6e90\u7af6\u722d\uff1a<\/strong>\u7576\u591a\u500b\u4e8b\u52d9\u540c\u6642\u8acb\u6c42\u76f8\u540c\u7684\u8cc7\u6e90\u6642\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u6b7b\u9396\u3002\u4f8b\u5982\uff0c\u4e8b\u52d9A\u6301\u6709\u8cc7\u6e901\u4e26\u8acb\u6c42\u8cc7\u6e902\uff0c\u800c\u4e8b\u52d9B\u6301\u6709\u8cc7\u6e902\u4e26\u8acb\u6c42\u8cc7\u6e901\u3002<\/li>\n<li><strong>\u4e0d\u7576\u7684\u4e8b\u52d9\u8a2d\u8a08\uff1a<\/strong>\u5982\u679c\u4e8b\u52d9\u7684\u57f7\u884c\u9806\u5e8f\u4e0d\u7576\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u6b7b\u9396\u3002\u4f8b\u5982\uff0c\u4e8b\u52d9A\u5728\u57f7\u884c\u904e\u7a0b\u4e2d\u5148\u66f4\u65b0\u8868A\u518d\u66f4\u65b0\u8868B\uff0c\u800c\u4e8b\u52d9B\u5247\u76f8\u53cd\u3002<\/li>\n<li><strong>\u9577\u6642\u9593\u6301\u6709\u9396\uff1a<\/strong>\u5982\u679c\u4e8b\u52d9\u5728\u6301\u6709\u9396\u7684\u60c5\u6cc1\u4e0b\u57f7\u884c\u6642\u9593\u904e\u9577\uff0c\u5176\u4ed6\u4e8b\u52d9\u53ef\u80fd\u6703\u56e0\u7b49\u5f85\u800c\u5c0e\u81f4\u6b7b\u9396\u3002<\/li>\n<\/ul>\n<h2 id=\"%e8%ad%98%e5%88%a5%e6%ad%bb%e9%8e%96-GhWiwjDLja\">\u8b58\u5225\u6b7b\u9396<\/h2>\n<p>\u5728Oracle\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u65b9\u6cd5\u4f86\u8b58\u5225\u6b7b\u9396\uff1a<\/p>\n<ul>\n<li><strong>\u67e5\u8a62V$LOCK\u8996\u5716\uff1a<\/strong>\u9019\u500b\u8996\u5716\u63d0\u4f9b\u4e86\u7576\u524d\u9396\u7684\u72c0\u614b\u3002\u53ef\u4ee5\u901a\u904e\u67e5\u8a62\u6b64\u8996\u5716\u4f86\u6aa2\u67e5\u662f\u5426\u5b58\u5728\u6b7b\u9396\u60c5\u6cc1\u3002<\/li>\n<li><strong>\u4f7f\u7528\u6b7b\u9396\u6aa2\u6e2c\u5668\uff1a<\/strong>Oracle\u8cc7\u6599\u5eab\u5167\u5efa\u7684\u6b7b\u9396\u6aa2\u6e2c\u5668\u6703\u81ea\u52d5\u6aa2\u6e2c\u6b7b\u9396\u4e26\u751f\u6210\u6b7b\u9396\u5831\u544a\u3002\u53ef\u4ee5\u901a\u904e\u67e5\u8a62V$SESSION\u548cV$TRANSACTION\u8996\u5716\u4f86\u7372\u53d6\u76f8\u95dc\u4fe1\u606f\u3002<\/li>\n<li><strong>\u67e5\u770b\u8b66\u544a\u65e5\u8a8c\uff1a<\/strong>Oracle\u7684\u8b66\u544a\u65e5\u8a8c\u4e2d\u6703\u8a18\u9304\u6b7b\u9396\u4e8b\u4ef6\uff0c\u901a\u904e\u6aa2\u67e5\u9019\u4e9b\u65e5\u8a8c\u53ef\u4ee5\u7372\u5f97\u66f4\u591a\u7684\u4e0a\u4e0b\u6587\u4fe1\u606f\u3002<\/li>\n<\/ul>\n<h2 id=\"%e8%a7%a3%e6%b1%ba%e6%ad%bb%e9%8e%96%e5%95%8f%e9%a1%8c-GhWiwjDLja\">\u89e3\u6c7a\u6b7b\u9396\u554f\u984c<\/h2>\n<p>\u89e3\u6c7aOracle\u6b7b\u9396\u554f\u984c\u7684\u65b9\u6cd5\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>\u512a\u5316\u4e8b\u52d9\u8a2d\u8a08\uff1a<\/strong>\u78ba\u4fdd\u4e8b\u52d9\u7684\u57f7\u884c\u9806\u5e8f\u4e00\u81f4\uff0c\u907f\u514d\u4ea4\u53c9\u9396\u5b9a\u3002\u4f8b\u5982\uff0c\u6240\u6709\u4e8b\u52d9\u90fd\u61c9\u8a72\u6309\u7167\u76f8\u540c\u7684\u9806\u5e8f\u8acb\u6c42\u8cc7\u6e90\u3002<\/li>\n<li><strong>\u6e1b\u5c11\u9396\u7684\u6301\u6709\u6642\u9593\uff1a<\/strong>\u76e1\u91cf\u7e2e\u77ed\u4e8b\u52d9\u7684\u57f7\u884c\u6642\u9593\uff0c\u907f\u514d\u9577\u6642\u9593\u6301\u6709\u9396\u3002\u53ef\u4ee5\u901a\u904e\u5c07\u5927\u4e8b\u52d9\u62c6\u5206\u70ba\u5c0f\u4e8b\u52d9\u4f86\u5be6\u73fe\u3002<\/li>\n<li><strong>\u4f7f\u7528\u9069\u7576\u7684\u9396\u5b9a\u6a21\u5f0f\uff1a<\/strong>\u6839\u64da\u9700\u8981\u9078\u64c7\u5408\u9069\u7684\u9396\u5b9a\u6a21\u5f0f\uff0c\u4f8b\u5982\u4f7f\u7528\u884c\u7d1a\u9396\u800c\u975e\u8868\u7d1a\u9396\uff0c\u4ee5\u6e1b\u5c11\u9396\u7684\u7af6\u722d\u3002<\/li>\n<li><strong>\u5b9a\u671f\u76e3\u63a7\u548c\u8abf\u6574\uff1a<\/strong>\u5b9a\u671f\u6aa2\u67e5\u8cc7\u6599\u5eab\u7684\u6027\u80fd\u548c\u9396\u7684\u4f7f\u7528\u60c5\u6cc1\uff0c\u53ca\u6642\u8abf\u6574\u4e8b\u52d9\u7684\u8a2d\u8a08\u548c\u57f7\u884c\u7b56\u7565\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%af%84%e4%be%8b%e4%bb%a3%e7%a2%bc-GhWiwjDLja\">\u7bc4\u4f8b\u4ee3\u78bc<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u7bc4\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u4f7f\u7528PL\/SQL\u4f86\u6aa2\u67e5\u6b7b\u9396\uff1a<\/p>\n<pre><code>\nDECLARE\n    v_lock_count NUMBER;\nBEGIN\n    SELECT COUNT(*)\n    INTO v_lock_count\n    FROM V$LOCK\n    WHERE BLOCK = 1;\n\n    IF v_lock_count &gt; 0 THEN\n        DBMS_OUTPUT.PUT_LINE('\u5b58\u5728\u6b7b\u9396');\n    ELSE\n        DBMS_OUTPUT.PUT_LINE('\u6c92\u6709\u6b7b\u9396');\n    END IF;\nEND;\n<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-GhWiwjDLja\">\u7e3d\u7d50<\/h2>\n<p>Oracle\u6b7b\u9396\u554f\u984c\u96d6\u7136\u5e38\u898b\uff0c\u4f46\u901a\u904e\u5408\u7406\u7684\u4e8b\u52d9\u8a2d\u8a08\u3001\u6709\u6548\u7684\u8cc7\u6e90\u7ba1\u7406\u548c\u5b9a\u671f\u7684\u6027\u80fd\u76e3\u63a7\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u6e1b\u5c11\u548c\u89e3\u6c7a\u9019\u4e9b\u554f\u984c\u3002\u4e86\u89e3\u5982\u4f55\u8b58\u5225\u548c\u8655\u7406\u6b7b\u9396\u662f\u6bcf\u4f4d\u8cc7\u6599\u5eab\u7ba1\u7406\u54e1\u5fc5\u5099\u7684\u6280\u80fd\u3002\u82e5\u60a8\u9700\u8981\u66f4\u9ad8\u6548\u7684\u89e3\u6c7a\u65b9\u6848\uff0c\u8003\u616e\u4f7f\u7528<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u6216<a href=\"https:\/\/server.hk\">\u96f2\u4f3a\u670d\u5668<\/a>\u4f86\u63d0\u5347\u60a8\u7684\u8cc7\u6599\u5eab\u6027\u80fd\u548c\u7a69\u5b9a\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b78\u7fd2\u5982\u4f55\u6709\u6548\u89e3\u6c7aOracle\u6b7b\u9396\u554f\u984c\uff0c\u63d0\u5347\u6578\u64da\u5eab\u6027\u80fd\uff0c\u78ba\u4fdd\u7cfb\u7d71\u7a69\u5b9a\u904b\u884c\uff0c\u907f\u514d\u696d\u52d9\u4e2d\u65b7\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-173969","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/173969","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"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=173969"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/173969\/revisions"}],"predecessor-version":[{"id":173970,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/173969\/revisions\/173970"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=173969"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=173969"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=173969"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}