select * from table order by newid() <\/p>\n
\u7531newid\u60f3\u5230\u7684\u6570\u636e\u5e93\u4e3b\u952e\u8bbe\u8ba1 <\/p>\n
\u3000\u3000\u4e3b\u952e\u7684\u5fc5\u8981\u6027:
\u3000\u6709\u4e9b\u670b\u53cb\u53ef\u80fd\u4e0d\u63d0\u5021\u6570\u636e\u5e93\u8868\u5fc5\u987b\u8981\u4e3b\u952e\uff0c\u4f46\u5728\u6211\u7684\u601d\u8003\u4e2d\uff0c\u89c9\u5f97\u6bcf\u4e2a\u8868\u90fd\u5e94\u8be5\u5177\u6709\u4e3b\u952e\uff0c\u4e0d\u7ba1\u662f\u5355\u4e3b\u952e\u8fd8\u662f\u53cc\u4e3b\u952e\uff0c\u4e3b\u952e\u7684\u5b58\u5728\u5c31\u4ee3\u8868\u7740\u8868\u7ed3\u6784\u7684\u5b8c\u6574\u6027\uff0c\u8868\u7684\u8bb0\u5f55\u5fc5\u987b\u5f97\u6709\u552f\u4e00\u533a\u5206\u7684\u5b57\u6bb5\uff0c\u4e3b\u952e\u4e3b\u8981\u662f\u7528\u4e8e\u5176\u4ed6\u8868\u7684\u5916\u952e\u5173\u8054\uff0c\u672c\u8bb0\u5f55\u7684\u4fee\u6539\u4e0e\u5220\u9664\uff0c\u5f53\u6211\u4eec\u6ca1\u6709\u4e3b\u952e\u65f6\uff0c\u8fd9\u4e9b\u64cd\u4f5c\u4f1a\u53d8\u7684\u975e\u5e38\u9ebb\u70e6\u3002 \u5728SQL\u4e2d NEWID()\u51fd\u6570\u662f\u7528\u6765\u751f\u6210GUID\u5168\u7403\u552f\u4e00\u6807\u8bc6\u7684
\u6240\u4ee5\u5229\u7528NEWID()\u6765\u5b9e\u73b0\u968f\u673a\u6392\u5e8f
select * from table order by newid() <\/p>\n
\u7531newid\u60f3\u5230\u7684\u6570\u636e\u5e93\u4e3b\u952e\u8bbe\u8ba1 <\/p>\n
\u3000\u3000\u4e3b\u952e\u7684\u5fc5\u8981\u6027:
\u3000\u6709\u4e9b\u670b\u53cb\u53ef\u80fd\u4e0d\u63d0\u5021\u6570\u636e\u5e93\u8868\u5fc5\u987b\u8981\u4e3b\u952e\uff0c\u4f46\u5728\u6211\u7684\u601d\u8003\u4e2d\uff0c\u89c9\u5f97\u6bcf\u4e2a\u8868\u90fd\u5e94\u8be5\u5177\u6709\u4e3b\u952e\uff0c\u4e0d\u7ba1\u662f\u5355\u4e3b\u952e\u8fd8\u662f\u53cc\u4e3b\u952e\uff0c\u4e3b\u952e\u7684\u5b58\u5728\u5c31\u4ee3\u8868\u7740\u8868\u7ed3\u6784\u7684\u5b8c\u6574\u6027\uff0c\u8868\u7684\u8bb0\u5f55\u5fc5\u987b\u5f97\u6709\u552f\u4e00\u533a\u5206\u7684\u5b57\u6bb5\uff0c\u4e3b\u952e\u4e3b\u8981\u662f\u7528\u4e8e\u5176\u4ed6\u8868\u7684\u5916\u952e\u5173\u8054\uff0c\u672c\u8bb0\u5f55\u7684\u4fee\u6539\u4e0e\u5220\u9664\uff0c\u5f53\u6211\u4eec\u6ca1\u6709\u4e3b\u952e\u65f6\uff0c\u8fd9\u4e9b\u64cd\u4f5c\u4f1a\u53d8\u7684\u975e\u5e38\u9ebb\u70e6\u3002
\u3000\u3000\u4e3b\u952e\u7684\u65e0\u610f\u4e49\u6027\uff1a
\u3000\u6211\u5f3a\u8c03\u4e3b\u952e\u4e0d\u5e94\u8be5\u5177\u6709\u5b9e\u9645\u7684\u610f\u4e49\uff0c\u8fd9\u53ef\u80fd\u5bf9\u4e8e\u4e00\u4e9b\u670b\u53cb\u6765\u8bf4\u4e0d\u592a\u8ba4\u540c\uff0c\u6bd4\u5982\u8ba2\u5355\u8868\u5427\uff0c\u4f1a\u6709“\u8ba2\u5355\u7f16\u53f7”\u5b57\u6bb5\uff0c\u800c\u8fd9\u4e2a\u5b57\u6bb5\u5462\u5728\u4e1a\u52a1\u5b9e\u9645\u4e2d\u672c\u8eab\u5c31\u662f\u5e94\u8be5\u5177\u6709\u552f\u4e00\u6027\uff0c\u5177\u6709\u552f\u4e00\u6807\u8bc6\u8bb0\u5f55\u7684\u529f\u80fd\uff0c\u4f46\u6211\u662f\u4e0d\u63a8\u8350\u91c7\u7528\u8ba2\u5355\u7f16\u53f7\u5b57\u6bb5\u4f5c\u4e3a\u4e3b\u952e\u7684\uff0c\u56e0\u4e3a\u5177\u6709\u5b9e\u9645\u610f\u4e49\u7684\u5b57\u6bb5\uff0c\u5177\u6709“\u610f\u4e49\u66f4\u6539”\u7684\u53ef\u80fd\u6027\uff0c\u6bd4\u5982\u8ba2\u5355\u7f16\u53f7\u5728\u521a\u5f00\u59cb\u7684\u65f6\u5019\u6211\u4eec\u4e00\u5207\u987a\u5229\uff0c\u540e\u6765\u5ba2\u6237\u8bf4“\u8ba2\u5355\u53ef\u4ee5\u4f5c\u5e9f\uff0c\u5e76\u91cd\u65b0\u751f\u6210\u8ba2\u5355\uff0c\u800c\u4e14\u8ba2\u5355\u53f7\u8981\u4fdd\u6301\u539f\u8ba2\u5355\u53f7\u4e00\u81f4”\uff0c\u8fd9\u6837\u539f\u6765\u7684\u4e3b\u952e\u5c31\u9762\u4e34\u5371\u9669\u4e86\u3002\u56e0\u6b64\uff0c\u5177\u6709\u552f\u4e00\u6027\u7684\u5b9e\u9645\u5b57\u6bb5\u4e5f\u4ee3\u8868\u53ef\u4ee5\u4f5c\u4e3a\u4e3b\u952e\u3002\u56e0\u6b64\uff0c\u6211\u63a8\u8350\u662f\u65b0\u8bbe\u4e00\u4e2a\u5b57\u6bb5\u4e13\u95e8\u7528\u4e3a\u4e3b\u952e\uff0c\u6b64\u4e3b\u952e\u672c\u8eab\u5728\u4e1a\u52a1\u903b\u8f91\u4e0a\u4e0d\u4f53\u73b0\uff0c\u4e0d\u5177\u6709\u5b9e\u9645\u610f\u4e49\u3002\u800c\u8fd9\u79cd\u4e3b\u952e\u5728\u4e00\u5b9a\u7a0b\u5e8f\u589e\u52a0\u4e86\u590d\u6742\u5ea6\uff0c\u6240\u4ee5\u8981\u89c6\u5b9e\u9645\u7cfb\u7edf\u7684\u89c4\u6a21\u5927\u5c0f\u800c\u5b9a\uff0c\u5bf9\u4e8e\u5c0f\u9879\u76ee\uff0c\u4ee5\u540e\u6269\u5c55\u4e0d\u4f1a\u5f88\u5927\u7684\u8bdd\uff0c\u4e5f\u67e5\u5141\u8bb8\u7528\u5b9e\u9645\u552f\u4e00\u7684\u5b57\u6bb5\u4f5c\u4e3b\u952e\u7684\u3002
\u3000\u3000\u4e3b\u952e\u7684\u9009\u62e9
\u6211\u4eec\u73b0\u5728\u5728\u601d\u8003\u4e00\u4e0b\uff0c\u5e94\u8be5\u91c7\u7528\u4ec0\u4e48\u6765\u4f5c\u8868\u7684\u4e3b\u952e\u6bd4\u8f83\u5408\u7406\uff0c\u7533\u660e\u4e00\u4e0b\uff0c\u4e3b\u952e\u7684\u8bbe\u8ba1\u6ca1\u6709\u4e00\u4e2a\u5b9a\u8bba\uff0c\u5404\u4eba\u6709\u5404\u4eba\u7684\u65b9\u6cd5\uff0c\u54ea\u6015\u540c\u4e00\u4e2a\uff0c\u5728\u4e0d\u540c\u7684\u9879\u76ee\u4e2d\uff0c\u4e5f\u4f1a\u91c7\u7528\u4e0d\u540c\u7684\u4e3b\u952e\u8bbe\u8ba1\u539f\u5219\u3002
\u7b2c\u4e00\uff1a\u7f16\u53f7\u4f5c\u4e3b\u952e
\u6b64\u65b9\u6cd5\u5c31\u662f\u91c7\u7528\u5b9e\u9645\u4e1a\u52a1\u4e2d\u7684\u552f\u4e00\u5b57\u6bb5\u7684“\u7f16\u53f7”\u4f5c\u4e3a\u4e3b\u952e\u8bbe\u8ba1\uff0c\u8fd9\u5728\u5c0f\u578b\u7684\u9879\u76ee\u4e2d\u662f\u63a8\u8350\u8fd9\u6837\u505a\u7684\uff0c\u56e0\u4e3a\u8fd9\u53ef\u4ee5\u4f7f\u9879\u76ee\u6bd4\u8f83\u7b80\u5355\u5316\uff0c\u4f46\u5728\u4f7f\u7528\u4e2d\u5374\u53ef\u80fd\u5e26\u6765\u4e00\u4e9b\u9ebb\u70e6\uff0c\u6bd4\u5982\u8981\u8fdb\u884c“\u7f16\u53f7\u4fee\u6539”\u65f6\uff0c\u53ef\u80fd\u8981\u6d89\u53ca\u5230\u5f88\u591a\u76f8\u5173\u8054\u7684\u5176\u4ed6\u8868\uff0c\u5c31\u8c61\u9ece\u53d4\u8bf4\u7684“\u540e\u679c\u5f88\u4e25\u91cd”;\u8fd8\u6709\u5c31\u662f\u4e0a\u9762\u63d0\u5230\u7684“\u4e1a\u52a1\u8981\u6c42\u5141\u8bb8\u7f16\u53f7\u91cd\u590d\u65f6”\uff0c\u6211\u4eec\u518d\u90a3\u4e48\u5148\u77e5\uff0c\u90fd\u65e0\u6cd5\u77e5\u9053\u4e1a\u52a1\u5c06\u4f1a\u4fee\u6539\u6210\u4ec0\u4e48?
\u3000\u3000\u7b2c\u4e8c\uff1a\u81ea\u52a8\u7f16\u53f7\u4e3b\u952e
\u8fd9\u79cd\u65b9\u6cd5\u4e5f\u662f\u5f88\u591a\u670b\u53cb\u5728\u4f7f\u7528\u7684\uff0c\u5c31\u662f\u65b0\u5efa\u4e00\u4e2aID\u5b57\u6bb5\uff0c\u81ea\u52a8\u589e\u957f\uff0c\u975e\u5e38\u65b9\u4fbf\u4e5f\u6ee1\u8db3\u4e3b\u952e\u7684\u539f\u5219\uff0c\u4f18\u70b9\u662f\uff1a\u6570\u636e\u5e93\u81ea\u52a8\u7f16\u53f7\uff0c\u901f\u5ea6\u5feb\uff0c\u800c\u4e14\u662f\u589e\u91cf\u589e\u957f\uff0c\u805a\u96c6\u578b\u4e3b\u952e\u6309\u987a\u5e8f\u5b58\u653e\uff0c\u5bf9\u4e8e\u68c0\u7d22\u975e\u5e38\u6709\u5229;\u6570\u5b57\u578b\u7684\uff0c\u5360\u7528\u7a7a\u95f4\u5c0f\uff0c\u6613\u6392\u5e8f\uff0c\u5728\u7a0b\u5e8f\u4e2d\u4f20\u9012\u4e5f\u65b9\u4fbf;\u5982\u679c\u901a\u8fc7\u975e\u7cfb\u7edf\u589e\u52a0\u8bb0\u5f55\uff08\u6bd4\u5982\u624b\u52a8\u5f55\u5165\uff0c\u6216\u662f\u7528\u5176\u4ed6\u5de5\u5177\u76f4\u63a5\u5728\u8868\u91cc\u63d2\u5165\u65b0\u8bb0\u5f55\uff0c\u6216\u8001\u7cfb\u7edf\u6570\u636e\u5bfc\u5165\uff09\u65f6\uff0c\u975e\u5e38\u65b9\u4fbf\uff0c\u4e0d\u7528\u62c5\u5fc3\u4e3b\u952e\u91cd\u590d\u95ee\u9898\u3002
\u7f3a\u70b9\uff1a\u5176\u5b9e\u7f3a\u70b9\u4e5f\u5c31\u662f\u6765\u81ea\u5176\u4f18\u70b9\uff0c\u5c31\u662f\u56e0\u4e3a\u81ea\u52a8\u589e\u957f\uff0c\u5728\u624b\u52a8\u8981\u63d2\u5165\u6307\u5b9aID\u7684\u8bb0\u5f55\u65f6\u4f1a\u663e\u5f97\u9ebb\u70e6\uff0c\u5c24\u5176\u662f\u5f53\u7cfb\u7edf\u4e0e\u5176\u4ed6\u7cfb\u7edf\u96c6\u6210\u65f6\uff0c\u9700\u8981\u6570\u636e\u5bfc\u5165\u65f6\uff0c\u5f88\u96be\u4fdd\u8bc1\u539f\u7cfb\u7edf\u7684ID\u4e0d\u53d1\u751f\u4e3b\u952e\u51b2\u7a81\uff08\u524d\u63d0\u662f\u8001\u7cfb\u7edf\u4e5f\u662f\u6570\u5b57\u578b\u7684\uff09;\u5982\u679c\u5176\u4ed6\u7cfb\u7edf\u4e3b\u952e\u4e0d\u662f\u6570\u5b57\u578b\u90a3\u5c31\u9ebb\u70e6\u66f4\u5927\u4e86\uff0c\u4f1a\u5bfc\u81f4\u4fee\u6539\u4e3b\u952e\u6570\u636e\u7c7b\u578b\u4e86\uff0c\u8fd9\u4e5f\u4f1a\u5bfc\u81f4\u5176\u4ed6\u76f8\u5173\u8868\u7684\u4fee\u6539\uff0c\u540e\u679c\u540c\u6837\u5f88\u4e25\u91cd;\u5c31\u7b97\u5176\u4ed6\u7cfb\u7edf\u4e5f\u662f\u6570\u5b57\u578b\u7684\uff0c\u5728\u5bfc\u5165\u65f6\uff0c\u4e3a\u4e86\u533a\u5206\u65b0\u8001\u6570\u636e\uff0c\u53ef\u80fd\u60f3\u5728\u8001\u6570\u636e\u4e3b\u952e\u524d\u7edf\u4e00\u52a0\u4e00\u4e2a“o”(old)\u6765\u8868\u793a\u8fd9\u662f\u8001\u6570\u636e\uff0c\u90a3\u4e48\u81ea\u52a8\u589e\u957f\u7684\u6570\u5b57\u578b\u53c8\u9762\u4e34\u4e00\u4e2a\u6311\u6218\u3002
\u3000\u3000\u7b2c\u4e09\uff1aMax\u52a0\u4e00
\u7531\u4e8e\u81ea\u52a8\u7f16\u53f7\u5b58\u5728\u90a3\u4e9b\u95ee\u9898\uff0c\u6240\u4ee5\u6709\u4e9b\u670b\u53cb\u5c31\u91c7\u7528\u81ea\u5df1\u751f\u6210\uff0c\u540c\u6837\u662f\u6570\u5b57\u578b\u7684\uff0c\u53ea\u662f\u628a\u81ea\u52a8\u589e\u957f\u53bb\u6389\u4e86\uff0c\u91c7\u7528\u5728Insert\u65f6\uff0c\u8bfb\u53d6Max\u503c\u540e\u52a0\u4e00\uff0c\u8fd9\u79cd\u65b9\u6cd5\u53ef\u4ee5\u907f\u514d\u81ea\u52a8\u7f16\u53f7\u7684\u95ee\u9898\uff0c\u4f46\u4e5f\u5b58\u5728\u4e00\u4e2a\u6548\u7387\u95ee\u9898\uff0c\u5982\u679c\u8bb0\u5f55\u975e\u5e38\u5927\u7684\u8bdd\uff0c\u90a3\u4e48Max()\u4e5f\u4f1a\u5f71\u54cd\u6548\u7387\u7684;\u66f4\u4e25\u91cd\u7684\u662f\u5e76\u53d1\u6027\u95ee\u9898\uff0c\u5982\u679c\u540c\u65f6\u6709\u4e24\u4eba\u8bfb\u5230\u76f8\u540c\u7684Max\u540e\uff0c\u52a0\u4e00\u540e\u63d2\u5165\u7684ID\u503c\u4f1a\u91cd\u590d\uff0c\u8fd9\u5df2\u7ecf\u662f\u6709\u7ecf\u9a8c\u6559\u8bad\u7684\u4e86\u3002
\u3000\u3000\u7b2c\u56db\uff1a\u81ea\u5236\u52a0\u4e00
\u8003\u8651Max\u52a0\u4e00\u7684\u6548\u7387\u540e\uff0c\u6709\u4eba\u91c7\u7528\u81ea\u5236\u52a0\u4e00\uff0c\u4e5f\u5c31\u662f\u5efa\u4e00\u4e2a\u7279\u522b\u7684\u8868\uff0c\u5b57\u6bb5\u4e3a\uff1a\u8868\u540d\uff0c\u5f53\u524d\u5e8f\u5217\u503c\u3002\u8fd9\u6837\u5728\u5f80\u8868\u4e2d\u63d2\u5165\u503c\u65f6\uff0c\u5148\u4ece\u6b64\u8868\u4e2d\u627e\u5230\u76f8\u5e94\u8868\u7684\u6700\u5927\u503c\u540e\u52a0\u4e00\uff0c\u8fdb\u884c\u63d2\u5165\uff0c\u6709\u4eba\u53ef\u80fd\u53d1\u73b0\uff0c\u4e5f\u53ef\u80fd\u4f1a\u5b58\u5728\u5e76\u53d1\u5904\u7406\uff0c\u8fd9\u4e2a\u5e76\u53d1\u5904\u7406\uff0c\u6211\u4eec\u53ef\u4ee5\u91c7\u7528lock\u7ebf\u7a0b\u7684\u65b9\u5f0f\u6765\u907f\u514d\uff0c\u5728\u751f\u6210\u6b64\u503c\u7684\u65f6\uff0c\u5148Lock\uff0c\u53d6\u5230\u503c\u4ee5\u540e\uff0c\u518dunLock\u51fa\u6765\uff0c\u8fd9\u6837\u4e0d\u4f1a\u6709\u4e24\u4eba\u540c\u65f6\u751f\u6210\u4e86\u3002\u8fd9\u6bd4Max\u52a0\u4e00\u7684\u901f\u5ea6\u8981\u5feb\u591a\u4e86\u3002\u4f46\u540c\u6837\u5b58\u5728\u4e00\u4e2a\u95ee\u9898\uff1a\u5728\u4e0e\u5176\u4ed6\u7cfb\u7edf\u96c6\u6210\u65f6\uff0c\u8131\u79bb\u4e86\u7cfb\u7edf\u4e2d\u7684\u751f\u6210\u65b9\u6cd5\u540e\uff0c\u5f88\u9ebb\u70e6\u4fdd\u8bc1\u81ea\u5236\u8868\u4e2d\u7684\u6700\u5927\u503c\u4e0e\u5bfc\u5165\u540e\u7684\u4fdd\u6301\u4e00\u81f4\uff0c\u800c\u4e14\u6570\u5b57\u578b\u90fd\u5b58\u5728\u4e0a\u9762\u8bb2\u5230\u7684“o”\u8001\u6570\u636e\u7684\u5bfc\u5165\u95ee\u9898\u3002\u56e0\u6b64\u5728“\u81ea\u5236\u52a0\u4e00”\u4e2d\u53ef\u4ee5\u628a\u4e3b\u952e\u8bbe\u4e3a\u5b57\u7b26\u578b\u7684\u3002\u5b57\u7b26\u578b\u7684\u81ea\u5236\u52a0\u4e00\u6211\u5012\u662f\u86ee\u63a8\u8350\u7684\uff0c\u5e94\u8be5\u5b57\u7b26\u578b\u4e3b\u952e\u53ef\u4ee5\u5e94\u4ed8\u5f88\u591a\u6211\u4eec\u610f\u60f3\u4e0d\u5230\u7684\u60c5\u51b5\u3002
\u7b2c\u4e94\uff1aGUID\u4e3b\u952e
\u76ee\u524d\u4e00\u4e2a\u6bd4\u8f83\u597d\u7684\u4e3b\u952e\u662f\u91c7\u7528GUID\uff0c\u5f53\u7136\u6211\u662f\u63a8\u8350\u4e3b\u952e\u8fd8\u662f\u5b57\u7b26\u578b\u7684\uff0c\u4f46\u503c\u7531GUID\u751f\u6210\uff0cGUID\u662f\u53ef\u4ee5\u81ea\u52a8\u751f\u6210\uff0c\u4e5f\u53ef\u4ee5\u7a0b\u5e8f\u751f\u6210\uff0c\u800c\u4e14\u952e\u503c\u4e0d\u53ef\u80fd\u91cd\u590d\uff0c\u53ef\u4ee5\u89e3\u51b3\u7cfb\u7edf\u96c6\u6210\u95ee\u9898\uff0c\u51e0\u4e2a\u7cfb\u7edf\u7684GUID\u503c\u5bfc\u5230\u4e00\u8d77\u65f6\uff0c\u4e5f\u4e0d\u4f1a\u53d1\u751f\u91cd\u590d\uff0c\u5c31\u7b97\u6709“o”\u8001\u6570\u636e\u4e5f\u53ef\u4ee5\u533a\u5206\uff0c\u800c\u4e14\u6548\u7387\u5f88\u9ad8\uff0c\u5728.NET\u91cc\u53ef\u4ee5\u76f4\u63a5\u4f7f\u7528System.Guid.NewGuid()\u8fdb\u884c\u751f\u6210\uff0c\u5728SQL\u91cc\u4e5f\u53ef\u4ee5\u4f7f\u7528 NewID()\u751f\u6210\u3002\u4f18\u70b9\u662f\uff1a
\u540c IDENTITY \u5217\u76f8\u6bd4\uff0cuniqueidentifier \u5217\u53ef\u4ee5\u901a\u8fc7 NewID() \u51fd\u6570\u63d0\u524d\u5f97\u77e5\u65b0\u589e\u52a0\u7684\u884c ID\uff0c\u4e3a\u5e94\u7528\u7a0b\u5e8f\u7684\u540e\u7eed\u5904\u7406\u63d0\u4f9b\u4e86\u5f88\u5927\u65b9\u4fbf\u3002
\u4fbf\u4e8e\u6570\u636e\u5e93\u79fb\u690d\uff0c\u5176\u5b83\u6570\u636e\u5e93\u4e2d\u5e76\u4e0d\u4e00\u5b9a\u5177\u6709 IDENTITY \u5217\uff0c\u800c Guid \u5217\u53ef\u4ee5\u4f5c\u4e3a\u5b57\u7b26\u578b\u5217\u8f6c\u6362\u5230\u5176\u5b83\u6570\u636e\u5e93\u4e2d\uff0c\u540c\u65f6\u5c06\u5e94\u7528\u7a0b\u5e8f\u4e2d\u4ea7\u751f\u7684 GUID \u503c\u5b58\u5165\u6570\u636e\u5e93\uff0c\u5b83\u4e0d\u4f1a\u5bf9\u539f\u6709\u6570\u636e\u5e26\u6765\u5f71\u54cd\u3002
\u4fbf\u4e8e\u6570\u636e\u5e93\u521d\u59cb\u5316\uff0c\u5982\u679c\u5e94\u7528\u7a0b\u5e8f\u8981\u52a0\u8f7d\u4e00\u4e9b\u521d\u59cb\u6570\u636e\uff0c IDENTITY \u5217\u7684\u5904\u7406\u65b9\u5f0f\u5c31\u6bd4\u8f83\u9ebb\u70e6\uff0c\u800c uniqueidentifier \u5217\u5219\u65e0\u9700\u4efb\u4f55\u5904\u7406\uff0c\u76f4\u63a5\u7528 T-SQL \u52a0\u8f7d\u5373\u53ef\u3002
\u4fbf\u4e8e\u5bf9\u67d0\u4e9b\u5bf9\u8c61\u6216\u5e38\u91cf\u8fdb\u884c\u6c38\u4e45\u6807\u8bc6\uff0c\u5982\u7c7b\u7684 ClassID\uff0c\u5bf9\u8c61\u7684\u5b9e\u4f8b\u6807\u8bc6\uff0cUDDI \u4e2d\u7684\u8054\u7cfb\u4eba\u3001\u670d\u52a1\u63a5\u53e3\u3001tModel\u6807\u8bc6\u5b9a\u4e49\u7b49\u3002
\u3000\u3000\u7f3a\u70b9\u662f\uff1a
GUID \u503c\u8f83\u957f\uff0c\u4e0d\u5bb9\u6613\u8bb0\u5fc6\u548c\u8f93\u5165\uff0c\u800c\u4e14\u8fd9\u4e2a\u503c\u662f\u968f\u673a\u3001\u65e0\u987a\u5e8f\u7684\u3002
GUID \u7684\u503c\u6709 16 \u4e2a\u5b57\u8282\uff0c\u4e0e\u5176\u5b83\u90a3\u4e9b\u8bf8\u5982 4 \u5b57\u8282\u7684\u6574\u6570\u76f8\u6bd4\u8981\u76f8\u5bf9\u5927\u4e00\u4e9b\u3002\u8fd9\u610f\u5473\u7740\u5982\u679c\u5728\u6570\u636e\u5e93\u4e2d\u4f7f\u7528 uniqueidentifier \u952e\uff0c\u53ef\u80fd\u4f1a\u5e26\u6765\u4e24\u65b9\u9762\u7684\u6d88\u6781\u5f71\u54cd\uff1a\u5b58\u50a8\u7a7a\u95f4\u589e\u5927\uff1b\u7d22\u5f15\u65f6\u95f4\u8f83\u6162\u3002 <\/p>\n","protected":false},"excerpt":{"rendered":"
select * from table order by newid() \u7531newid\u60f3\u5230\u7684\u6570\u636e\u5e93\u4e3b\u952e\u8bbe\u8ba1 \u3000\u3000\u4e3b\u952e...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[8],"tags":[],"_links":{"self":[{"href":"https:\/\/www.2lin.top\/index.php?rest_route=\/wp\/v2\/posts\/136"}],"collection":[{"href":"https:\/\/www.2lin.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.2lin.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.2lin.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.2lin.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=136"}],"version-history":[{"count":0,"href":"https:\/\/www.2lin.top\/index.php?rest_route=\/wp\/v2\/posts\/136\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.2lin.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=136"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.2lin.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=136"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.2lin.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=136"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}