{"id":154507,"date":"2024-11-02T16:23:19","date_gmt":"2024-11-02T08:23:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/154507\/"},"modified":"2024-11-02T16:23:20","modified_gmt":"2024-11-02T08:23:20","slug":"%e5%b0%8d-db2-%e9%8e%96%e7%ad%89%e5%be%85%e7%9a%84%e6%ad%a3%e7%a2%ba%e9%97%a1%e8%bf%b0","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/154507\/","title":{"rendered":"\u5c0d DB2 \u9396\u7b49\u5f85\u7684\u6b63\u78ba\u95e1\u8ff0"},"content":{"rendered":"<h1 id=\"%e5%b0%8d-db2-%e9%8e%96%e7%ad%89%e5%be%85%e7%9a%84%e6%ad%a3%e7%a2%ba%e9%97%a1%e8%bf%b0-JFCAALjMXa\">\u5c0d DB2 \u9396\u7b49\u5f85\u7684\u6b63\u78ba\u95e1\u8ff0<\/h1>\n<p>\u5728\u8cc7\u6599\u5eab\u7ba1\u7406\u7cfb\u7d71\u4e2d\uff0c\u9396\u5b9a\u662f\u78ba\u4fdd\u8cc7\u6599\u4e00\u81f4\u6027\u548c\u5b8c\u6574\u6027\u7684\u91cd\u8981\u6a5f\u5236\u3002IBM \u7684 DB2 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\u4e2d\uff0c\u9396\u5b9a\u662f\u901a\u904e\u9396\u5b9a\u6a5f\u5236\u4f86\u5be6\u73fe\u7684\uff0c\u9019\u4e9b\u9396\u5b9a\u53ef\u4ee5\u662f\u5171\u4eab\u9396\u6216\u6392\u4ed6\u9396\u3002<\/p>\n<ul>\n<li><strong>\u5171\u4eab\u9396\uff1a<\/strong>\u5141\u8a31\u591a\u500b\u4e8b\u52d9\u540c\u6642\u8b80\u53d6\u8cc7\u6599\uff0c\u4f46\u4e0d\u5141\u8a31\u4efb\u4f55\u4e8b\u52d9\u4fee\u6539\u8cc7\u6599\u3002<\/li>\n<li><strong>\u6392\u4ed6\u9396\uff1a<\/strong>\u53ea\u5141\u8a31\u4e00\u500b\u4e8b\u52d9\u5c0d\u8cc7\u6599\u9032\u884c\u8b80\u53d6\u6216\u4fee\u6539\uff0c\u5176\u4ed6\u4e8b\u52d9\u5fc5\u9808\u7b49\u5f85\u3002<\/li>\n<\/ul>\n<h2 id=\"%e9%8e%96%e7%ad%89%e5%be%85%e7%9a%84%e5%8e%9f%e5%9b%a0-JFCAALjMXa\">\u9396\u7b49\u5f85\u7684\u539f\u56e0<\/h2>\n<p>\u9396\u7b49\u5f85\u7684\u539f\u56e0\u901a\u5e38\u53ef\u4ee5\u6b78\u7d50\u70ba\u4ee5\u4e0b\u5e7e\u500b\u65b9\u9762\uff1a<\/p>\n<ul>\n<li><strong>\u9577\u6642\u9593\u57f7\u884c\u7684\u4e8b\u52d9\uff1a<\/strong>\u5982\u679c\u4e00\u500b\u4e8b\u52d9\u57f7\u884c\u6642\u9593\u904e\u9577\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u5176\u4ed6\u4e8b\u52d9\u7121\u6cd5\u7372\u5f97\u6240\u9700\u7684\u9396\u3002<\/li>\n<li><strong>\u4e0d\u7576\u7684\u9396\u5b9a\u7b56\u7565\uff1a<\/strong>\u4e0d\u5408\u7406\u7684\u9396\u5b9a\u7bc4\u570d\u6216\u9396\u5b9a\u7c92\u5ea6\u53ef\u80fd\u6703\u5c0e\u81f4\u4e0d\u5fc5\u8981\u7684\u9396\u7b49\u5f85\u3002<\/li>\n<li><strong>\u6b7b\u9396\uff1a<\/strong>\u7576\u5169\u500b\u6216\u591a\u500b\u4e8b\u52d9\u4e92\u76f8\u7b49\u5f85\u5c0d\u65b9\u91cb\u653e\u9396\u6642\uff0c\u5c31\u6703\u767c\u751f\u6b7b\u9396\uff0c\u9019\u6703\u5c0e\u81f4\u6240\u6709\u76f8\u95dc\u4e8b\u52d9\u7121\u6cd5\u7e7c\u7e8c\u57f7\u884c\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e8%ad%98%e5%88%a5%e9%8e%96%e7%ad%89%e5%be%85%e5%95%8f%e9%a1%8c-JFCAALjMXa\">\u5982\u4f55\u8b58\u5225\u9396\u7b49\u5f85\u554f\u984c<\/h2>\n<p>DB2 \u63d0\u4f9b\u4e86\u4e00\u4e9b\u5de5\u5177\u548c\u67e5\u8a62\u4f86\u5e6b\u52a9\u8b58\u5225\u9396\u7b49\u5f85\u554f\u984c\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b SQL \u67e5\u8a62\u4f86\u6aa2\u67e5\u7576\u524d\u7684\u9396\u5b9a\u72c0\u614b\uff1a<\/p>\n<pre><code>\nSELECT \n    LOCKNAME, \n    LOCKTYPE, \n    MODE, \n    STATUS, \n    APPL_NAME \nFROM \n    SYSIBM.SYLOCK \nWHERE \n    STATUS = 'W';\n<\/code><\/pre>\n<p>\u9019\u500b\u67e5\u8a62\u5c07\u986f\u793a\u6240\u6709\u7576\u524d\u8655\u65bc\u7b49\u5f85\u72c0\u614b\u7684\u9396\uff0c\u5e6b\u52a9\u7ba1\u7406\u54e1\u8b58\u5225\u554f\u984c\u6240\u5728\u3002<\/p>\n<h2 id=\"%e8%a7%a3%e6%b1%ba%e9%8e%96%e7%ad%89%e5%be%85%e5%95%8f%e9%a1%8c%e7%9a%84%e7%ad%96%e7%95%a5-JFCAALjMXa\">\u89e3\u6c7a\u9396\u7b49\u5f85\u554f\u984c\u7684\u7b56\u7565<\/h2>\n<p>\u70ba\u4e86\u6e1b\u5c11\u9396\u7b49\u5f85\u7684\u767c\u751f\uff0c\u53ef\u4ee5\u63a1\u53d6\u4ee5\u4e0b\u5e7e\u7a2e\u7b56\u7565\uff1a<\/p>\n<ul>\n<li><strong>\u512a\u5316\u4e8b\u52d9\uff1a<\/strong>\u78ba\u4fdd\u4e8b\u52d9\u57f7\u884c\u6642\u9593\u76e1\u53ef\u80fd\u77ed\uff0c\u907f\u514d\u9577\u6642\u9593\u6301\u6709\u9396\u3002<\/li>\n<li><strong>\u8abf\u6574\u9396\u5b9a\u7c92\u5ea6\uff1a<\/strong>\u6839\u64da\u5be6\u969b\u9700\u6c42\u8abf\u6574\u9396\u5b9a\u7684\u7bc4\u570d\uff0c\u4f7f\u7528\u884c\u7d1a\u9396\u800c\u975e\u8868\u7d1a\u9396\u53ef\u4ee5\u6e1b\u5c11\u9396\u7af6\u722d\u3002<\/li>\n<li><strong>\u4f7f\u7528\u975e\u9396\u5b9a\u8b80\u53d6\uff1a<\/strong>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u53ef\u4ee5\u4f7f\u7528\u5feb\u7167\u8b80\u53d6\uff08Snapshot Read\uff09\u4f86\u907f\u514d\u9396\u5b9a\u3002<\/li>\n<li><strong>\u5b9a\u671f\u6aa2\u67e5\u548c\u6e05\u7406\uff1a<\/strong>\u5b9a\u671f\u6aa2\u67e5\u8cc7\u6599\u5eab\u7684\u9396\u5b9a\u72c0\u614b\uff0c\u53ca\u6642\u91cb\u653e\u4e0d\u518d\u9700\u8981\u7684\u9396\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b5%90%e8%ab%96-JFCAALjMXa\">\u7d50\u8ad6<\/h2>\n<p>\u9396\u7b49\u5f85\u662f DB2 \u8cc7\u6599\u5eab\u7ba1\u7406\u4e2d\u4e00\u500b\u5e38\u898b\u7684\u6311\u6230\uff0c\u4e86\u89e3\u5176\u539f\u56e0\u548c\u89e3\u6c7a\u65b9\u6848\u5c0d\u65bc\u7dad\u6301\u7cfb\u7d71\u6027\u80fd\u81f3\u95dc\u91cd\u8981\u3002\u901a\u904e\u512a\u5316\u4e8b\u52d9\u3001\u8abf\u6574\u9396\u5b9a\u7b56\u7565\u548c\u4f7f\u7528\u9069\u7576\u7684\u5de5\u5177\uff0c\u7ba1\u7406\u54e1\u53ef\u4ee5\u6709\u6548\u5730\u6e1b\u5c11\u9396\u7b49\u5f85\u7684\u5f71\u97ff\uff0c\u5f9e\u800c\u63d0\u9ad8\u8cc7\u6599\u5eab\u7684\u6574\u9ad4\u6548\u7387\u3002<\/p>\n<p>\u5982\u9700\u9032\u4e00\u6b65\u4e86\u89e3\u5982\u4f55\u63d0\u5347\u60a8\u7684\u8cc7\u6599\u5eab\u6027\u80fd\uff0c\u60a8\u53ef\u4ee5\u8003\u616e\u4f7f\u7528\u6211\u5011\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0c\u9019\u5c07\u70ba\u60a8\u7684\u61c9\u7528\u7a0b\u5f0f\u63d0\u4f9b\u7a69\u5b9a\u548c\u9ad8\u6548\u7684\u904b\u884c\u74b0\u5883\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3 DB2 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