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data-id=\"p124945a-Kfbzi0hd\">\u6b64\u7b97\u6cd5\u901a\u5e38\u7528\u4e8e\u6d41\u6c34\u4e8b\u4ef6\u8868\uff0c\u9002\u5408\u8fd9\u7c7b\u7b97\u6cd5\u7684\u6e90\u8868\u5728\u6e90\u7cfb\u7edf\u4e2d\u4e0d\u4f1a\u66f4\u65b0\u548c\u5220\u9664\uff0c\u800c\u53ea\u4f1a\u53d1\u751f\u4e00\u7b14\u6dfb\u52a0\u4e00\u7b14\uff0c\u6240\u4ee5\u53ea\u9700\u6bcf\u5929\u5c06\u4ea4\u6613\u65e5\u671f\u4e3a\u5f53\u65e5\u6700\u65b0\u6570\u636e\u53d6\u8fc7\u6765\u76f4\u63a5\u9644\u52a0\u5230\u76ee\u6807\u8868\u5373\u53ef\uff0c\u6b64\u7c7b\u8868\u5728\u8fd1\u6e90\u6a21\u578b\u5c42\u7684\u5b57\u6bb5\u4e0e\u6280\u672f\u7f13\u51b2\u5c42\u3001\u6e90\u7cfb\u7edf\u8868\u57fa\u672c\u4e0a\u5b8c\u5168\u4e00\u81f4\uff0c\u4e0d\u4f1a\u989d\u5916\u589e\u52a0\u7269\u7406\u5316\u5904\u7406\u5b57\u6bb5\uff0c\u4f7f\u7528\u65f6\u4e5f\u4e0e\u6e90\u7cfb\u7edf\u8868\u7684\u67e5\u8be2\u65b9\u5f0f\u76f8\u540c\u3002<\/p>\n<p data-id=\"p124945a-sgGkAJj1\">\u6280\u672f\u7f13\u51b2\u5230\u8fd1\u6e90\u6a21\u578b\u5c42\u7684\u6570\u636e\u6d41\u7b97\u6cd5&#8212;&#8211;\u5e38\u89c4\u62c9\u94fe\u7b97\u6cd5<\/p>\n<p data-id=\"p124945a-V13DV2kI\">\u6b64\u7b97\u6cd5\u901a\u5e38\u7528\u4e8e\u65e0\u5220\u9664\u64cd\u4f5c\u7684\u5e38\u89c4\u72b6\u6001\u8868\uff0c\u9002\u5408\u8fd9\u7c7b\u7b97\u6cd5\u7684\u6e90\u8868\u5728\u6e90\u7cfb\u7edf\u4e2d\u4f1a\u65b0\u589e\u3001\u4fee\u6539\uff0c\u4f46\u4e0d\u5220\u9664\uff0c\u6240\u4ee5\u9700\u6bcf\u5929\u83b7\u53d6\u5f53\u65e5\u672b\u6700\u65b0\u6570\u636e(\u589e\u91cf\u6216\u5168\u589e\u91cf\u5747\u53ef)\uff0c\u5148\u627e\u51fa\u771f\u6b63\u7684\u589e\u91cf\u6570\u636e(\u65b0\u589e\u548c\u4fee\u6539)\uff0c\u7528\u5b83\u4eec\u5c06\u76ee\u6807\u8868\u4e2d\u5c5e\u6027\u53d1\u751f\u4fee\u6539\u7684\u5f00\u94fe\u6570\u636e(\u6709\u6548\u6570\u636e)\u8fdb\u884c\u5173\u94fe\u64cd\u4f5c(\u5373END_DT\u5173\u95ed\u5230\u5f53\u524d\u4e1a\u52a1\u65e5\u671f)\uff0c\u7136\u540e\u518d\u5c06\u6700\u65b0\u7684\u589e\u91cf\u6570\u636e\u4f5c\u4e3a\u5f00\u94fe\u6570\u636e\u63d2\u5165\u5230\u76ee\u6807\u8868\u5373\u53ef\u3002<\/p>\n<p data-id=\"p124945a-ydA9BaY9\">\u6b64\u7c7b\u8868\u518d\u8fd1\u6e90\u6a21\u578b\u5c42\u6bd4\u6280\u672f\u7f13\u51b2\u5c42\u3001\u6e90\u7cfb\u7edf\u7684\u76f8\u5e94\u8868\u989d\u5916\u589e\u52a0\u4e24\u4e2a\u7269\u7406\u5316\u5904\u7406\u5b57\u6bb5START_DT(\u5f00\u59cb\u65e5\u671f)\u548cEND_DT(\u7ed3\u675f\u65e5\u671f)\uff0c\u4f7f\u7528\u65f6\u9700\u8981\u5148\u9009\u5b9a\u89c6\u89c9\u65e5\u671f\uff0c\u901a\u8fc7START_DT\u548cEND_DT\u53bb\u5361\u89c6\u89c9\u65e5\u671f\uff0c\u5373START_DT&lt;=&#8217;\u89c6\u89c9\u65e5\u671f&#8217;AND END_DT&gt;&#8217;\u89c6\u89c9\u65e5\u671f&#8217;\u3002<\/p>\n<p data-id=\"p124945a-HwIpuhye\">\u6280\u672f\u7f13\u51b2\u5230\u8fd1\u6e90\u6a21\u578b\u5c42\u7684\u6570\u636e\u6d41\u7b97\u6cd5&#8212;&#8211;\u5168\u91cf\u5e26\u5220\u9664\u62c9\u94fe\u7b97\u6cd5<\/p>\n<p data-id=\"p124945a-er5rIFzY\">\u6b64\u7b97\u6cd5\u901a\u5e38\u7528\u4e8e\u6709\u5220\u9664\u64cd\u4f5c\u7684\u5e38\u89c4\u72b6\u6001\u7c7b\u8868\uff0c\u5e76\u4e14\u8981\u6c42\u5168\u91cf\u7684\u6570\u636e\u6587\u4ef6\uff0c\u7528\u4ee5\u5bf9\u6bd4\u51fa\u5220\u9664\u589e\u91cf;\u9002\u5408\u8fd9\u7c7b\u7b97\u6cd5\u7684\u6e90\u8868\u5728\u6e90\u7cfb\u7edf\u4e2d\u4f1a\u65b0\u589e\uff0c\u4fee\u6539\uff0c\u5220\u9664\uff0c\u6bcf\u5929\u5c06\u5f53\u65e5\u672b\u6700\u65b0\u5168\u91cf\u6570\u636e\u53d6\u8fc7\u6765\u5916\uff0c\u5206\u522b\u627e\u51fa\u771f\u6b63\u7684\u589e\u91cf\u6570\u636e(\u65b0\u589e\uff0c\u4fee\u6539)\u548c\u5220\u9664\u589e\u91cf\u6570\u636e\uff0c\u7528\u5b83\u4eec\u5c06\u76ee\u6807\u8868\u4e2d\u5c5e\u6027\u53d1\u751f\u4fee\u6539\u7684\u5f00\u94fe\u6570\u636e(\u6709\u6548\u6570\u636e)\u8fdb\u884c\u5173\u94fe\u64cd\u4f5c(\u5373END_DT\u5173\u95ed\u5230\u5f53\u524d\u4e1a\u52a1\u65e5\u671f)\uff0c\u7136\u540e\u518d\u5c06\u6700\u65b0\u589e\u91cf\u6570\u636e\u4e2d\u771f\u6b63\u7684\u589e\u91cf\u53ca\u5220\u9664\u6570\u636e\u4f5c\u4e3a\u5f00\u94fe\u6570\u636e\u63d2\u5165\u5230\u76ee\u6807\u8868\u5373\u53ef\uff0c\u6ce8\u610f\u5220\u9664\u8bb0\u5f55\u7684\u5220\u9664\u6807\u5fd7DEL_IND\u4f1a\u8bbe\u7f6e\u4e3a\u2018D\u2019\u3002<\/p>\n<p data-id=\"p124945a-j6UZJKmk\">\u6b64\u7c7b\u8868\u5728\u8fd1\u6e90\u6a21\u578b\u5c42\u6bd4\u6280\u672f\u7f13\u51b2\u5c42\uff0c\u6e90\u7cfb\u7edf\u7684\u76f8\u5e94\u8868\u989d\u5916\u589e\u52a0\u4e09\u4e2a\u7269\u7406\u5316\u5904\u7406\u5b57\u6bb5START_DT(\u5f00\u59cb\u65e5\u671f)\uff0cENT_DT(\u7ed3\u675f\u65e5\u671f)\uff0cDEL_IND(\u5220\u9664\u6807\u51c6)\u3002\u4f7f\u7528\u65b9\u5f0f\u5206\u4e24\u7c7b\uff1a\u4e00\u65f6\u4e00\u822c\u67e5\u8be2\u4f7f\u7528\uff0c\u6b64\u65f6\u9700\u8981\u5148\u9009\u5b9a\u89c6\u89d2\u65e5\u671f\uff0c\u901a\u8fc7START_DT\u548cEND_DT\u53bb\u5361\u89c6\u89d2\u65e5\u671f\uff0c\u5373START_DT&lt;=&#8217;\u89c6\u89d2\u65e5\u671f&#8217; AND END_DT&gt;\u2018\u89c6\u89d2\u65e5\u671f\u2019\uff0c\u540c\u65f6\u52a0\u4e0a\u6761\u4ef6DEL_IND &lt;&gt; &#8216;D&#8217;;\u53e6\u4e00\u79cd\u662f\u4e0b\u8f7d\u6216\u83b7\u53d6\u5f53\u65e5\u589e\u91cf\u6570\u636e\uff0c\u6b64\u65f6\u5c31\u662f\u9700\u8981START_DT&lt;=&#8217;\u89c6\u89d2\u65e5\u671f&#8217; AND END_DT&gt;&#8217;\u89c6\u89d2\u65e5\u671f&#8217; \u4e00\u4e2a\u6761\u4ef6\u5373\u53ef\uff0c\u4e0d\u9700\u8981\u52a0DEL_IND &lt;&gt; &#8216;D&#8217;\u7684\u6761\u4ef6\u3002<\/p>\n<p data-id=\"p124945a-kI1gQ8nV\">\u8fd1\u6e90\u6a21\u578b\u5c42\u5230\u6574\u5408\u6a21\u578b\u5c42\u7684\u6570\u636e\u6d41\u7b97\u6cd5&#8212;-APPEND\u7b97\u6cd5<\/p>\n<p data-id=\"p124945a-W5GfP7GD\">\u6b64\u7b97\u6cd5\u901a\u5e38\u7528\u4e8e\u6d41\u6c34\u4e8b\u4ef6\u8868\uff0c\u9002\u5408\u8fd9\u7c7b\u7b97\u6cd5\u7684\u6e90\u8868\u5728\u6e90\u7cfb\u7edf\u4e2d\u4e0d\u4f1a\u66f4\u65b0\u548c\u5220\u9664\uff0c\u800c\u53ea\u4f1a\u53d1\u751f\u4e00\u7b14\u6dfb\u52a0\u4e00\u7b14\uff0c\u6240\u4ee5\u53ea\u9700\u6bcf\u5929\u5c06\u4ea4\u6613\u65e5\u671f\u4e3a\u5f53\u65e5\u7684\u6700\u65b0\u6570\u636e\u53d6\u8fc7\u6765\u76f4\u63a5\u9644\u52a0\u5230\u76ee\u6807\u8868\u5373\u53ef\u3002<\/p>\n<p data-id=\"p124945a-3or3ftZm\">\u901a\u5e38\u5efa\u4e00\u5f20\u540d\u4e3aVT_NEW_\u7f16\u53f7\u7684\u4e34\u65f6\u8868\uff0c\u7528\u4e8e\u5c06\u5404\u7ec4\u5f53\u65e5\u6700\u65b0\u6570\u636e\u8f6c\u6362\u52a0\u5230VT_NEW_\u7f16\u53f7\u540e\uff0c\u518d\u4e00\u6b21\u9644\u52a0\u5230\u6700\u7ec8\u76ee\u6807\u8868\u3002<\/p>\n<p data-id=\"p124945a-5Ie0Ewbp\">\u8fd1\u6e90\u6a21\u578b\u5c42\u5230\u6574\u5408\u6a21\u578b\u5c42\u7684\u6570\u636e\u6d41\u7b97\u6cd5&#8212;-MERGE INTO\u7b97\u6cd5<\/p>\n<p data-id=\"p124945a-UMQgHZZP\">\u6b64\u7b97\u6cd5\u901a\u5e38\u7528\u4e8e\u65e0\u5220\u9664\u64cd\u4f5c\u7684\u5e38\u89c4\u72b6\u6001\u8868\uff0c\u4e00\u822c\u662f\u65e0\u9700\u4fdd\u7559\u5386\u53f2\u800c\u53ea\u4fdd\u7559\u5f53\u524d\u6700\u65b0\u72b6\u6001\u7684\u8868\uff0c\u9002\u5408\u8fd9\u7c7b\u7b97\u6cd5\u7684\u6e90\u8868\u5728\u6e90\u7cfb\u7edf\u4e2d\u4f1a\u65b0\u589e\uff0c\u4fee\u6539\uff0c\u4f46\u4e0d\u5220\u9664\uff0c\u6240\u4ee5\u9700\u83b7\u53d6\u5f53\u65e5\u672b\u6700\u65b0\u6570\u636e(\u589e\u91cf\u6216\u5168\u91cf\u5747\u53ef)\uff0c\u7528\u4e8eMERGE IN\u6216UPSERT\u76ee\u6807\u8868\u3002\u4e3a\u4e86\u6548\u7387\u53ca\u8bc6\u522b\u771f\u6b63\u589e\u91cf\u7684\u8981\u6c42\uff0c\u901a\u5e38\u5148\u8bc6\u522b\u51fa\u771f\u6b63\u7684\u589e\u91cf\u6570\u636e(\u65b0\u589e\u53ca\u4fee\u6539\u6570\u636e)\uff0c\u7136\u540e\u518d\u7528\u8fd9\u4e9b\u771f\u6b63\u7684\u589e\u91cf\u6570\u636e\u5411\u76ee\u6807\u8868\u8fdb\u884cMERGE INTO\u64cd\u4f5c\u3002<\/p>\n<p data-id=\"p124945a-PPQAfh2I\">\u901a\u5e38\u5efa\u4e24\u5f20\u4e34\u65f6\u8868\uff0c\u4e00\u4e2a\u540d\u4e3aVT_NEW_\u7f16\u53f7\uff0c\u7528\u4e8e\u5c06\u5404\u7ec4\u5f53\u65e5\u6700\u65b0\u6570\u636e\u8f6c\u6362\u52a0\u5230VT_NEW_\u7f16\u53f7\u3002\u53e6\u4e00\u5f20\u540d\u4e3aVT_INC_\u7f16\u53f7\uff0c\u5c06VT_NEW_\u7f16\u53f7\u4e0e\u76ee\u6807\u8868\u4e2d\u6628\u65e5\u7684\u6570\u636e\u8fdb\u884c\u5bf9\u6bd4\u540e\u627e\u51fa\u771f\u6b63\u7684\u589e\u91cf\u6570\u636e(\u65b0\u589e\u548c\u4fee\u6539)\u653e\u5165VT_INC_\u7f16\u53f7\uff0c\u7136\u540e\u518d\u7528VT_INC_\u7f16\u53f7\u5bf9\u6700\u7ec8\u76ee\u6807\u8868\u8fdb\u884cMERGE INTO\u6216UPSERT\u3002<\/p>\n<p data-id=\"p124945a-3Nq2lCEZ\">\u8fd1\u6e90\u6a21\u578b\u5c42\u5230\u6574\u5408\u6a21\u578b\u5c42\u7684\u6570\u636e\u6d41\u7b97\u6cd5&#8212;-\u5e38\u89c4\u62c9\u94fe\u7b97\u6cd5<\/p>\n<p 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