{"id":31,"date":"2025-03-14T07:32:01","date_gmt":"2025-03-14T06:32:01","guid":{"rendered":"https:\/\/zd1269878.noblogs.org\/?p=31"},"modified":"2025-10-21T10:32:55","modified_gmt":"2025-10-21T02:32:55","slug":"%e6%95%b0%e6%8d%ae%e5%ba%93-%e6%95%b4%e7%90%86","status":"publish","type":"post","link":"https:\/\/zd1269878.noblogs.org\/en-US\/post\/2025\/03\/14\/%e6%95%b0%e6%8d%ae%e5%ba%93-%e6%95%b4%e7%90%86\/","title":{"rendered":"\u6570\u636e\u5e93-\u6574\u7406"},"content":{"rendered":"

\u67b6\u6784:
\n\u6570\u636e !
\n\u8bb0\u5f55 !
\n\u8868 !
\n\u6570\u636e\u5e93\uff08\u53ef\u5171\u4eab\u7684\u6570\u636e\u96c6\u5408\uff09 !
\n\u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf(\u8f6f\u4ef6):\u7ba1\u7406\u6570\u636e\u5e93 !
\n\u6570\u636e\u5e93\u7cfb\u7edf:\u57fa\u4e8e\u6570\u636e\u5e93\u7684\u5e94\u7528\u7cfb\u7edf !
\n\u6570\u636e\u72ec\u7acb\u6027
\n!\u9ad8\u5ea6\u7684\u6570\u636e\u7269\u7406\u72ec\u7acb\u6027 !:\u5b58\u50a8\u7ed3\u6784\u6539\u53d8\u5e94\u7528\u7a0b\u5e8f\u4e0d\u6539\u53d8(\u684c\u5b50\u8fd8\u662f\u684c\u5b50)
\n!\u4e00\u5b9a\u7684\u6570\u636e\u903b\u8f91\u72ec\u7acb\u6027 !:\u903b\u8f91\u7ed3\u6784\u6539\u53d8\u65f6\u5e94\u7528\u7a0b\u5e8f\u4e0d\u6539\u53d8(\u4e0d\u540c\u4eba\u770b)
\n\uff081\uff09\u6570\u636e\u4e0e\u7a0b\u5e8f\u7684\u7269\u7406\u72ec\u7acb\u6027\uff1a\u5f53\u6570\u636e\u5e93\u7684\u5b58\u50a8\u7ed3\u6784\u6539\u53d8\u4e86\uff0c\u7531\u6570\u636e\u5e93\u7ba1\u7406\u5458\u5bf9\u6a21\u5f0f\uff0f\u5185\u6a21\u5f0f\u6620\u50cf\u505a\u76f8\u5e94\u6539\u53d8\uff0c\u53ef\u4ee5\u4f7f\u6a21\u5f0f\u4fdd\u6301\u4e0d\u53d8\uff0c\u4ece\u800c\u5e94\u7528\u7a0b\u5e8f\u4e5f\u4e0d\u5fc5\u6539\u53d8\uff0c\u4fdd\u8bc1\u4e86\u6570\u636e\u4e0e\u7a0b\u5e8f\u7684\u7269\u7406\u72ec\u7acb\u6027\uff0c\u7b80\u79f0\u6570\u636e\u7684\u7269\u7406\u72ec\u7acb\u6027\u3002
\n\uff082\uff09\u6570\u636e\u4e0e\u7a0b\u5e8f\u7684\u903b\u8f91\u72ec\u7acb\u6027\uff1a\u5f53\u6a21\u5f0f\u6539\u53d8\u65f6\uff08\u4f8b\u5982\u589e\u52a0\u65b0\u7684\u5173\u7cfb\u3001\u65b0\u7684\u5c5e\u6027\u3001\u6539\u53d8\u5c5e\u6027\u7684\u6570\u636e\u7c7b\u578b\u7b49\uff09\uff0c\u7531\u6570\u636e\u5e93\u7ba1\u7406\u5458\u5bf9\u5404\u4e2a\u5916\u6a21\u5f0f\uff0f\u6a21\u5f0f\u7684\u6620\u50cf\u505a\u76f8\u5e94\u6539\u53d8\uff0c\u53ef\u4ee5\u4f7f\u5916\u6a21\u5f0f\u4fdd\u6301\u4e0d\u53d8\u3002\u5e94\u7528\u7a0b\u5e8f\u662f\u4f9d\u636e\u6570\u636e\u7684\u5916\u6a21\u5f0f\u7f16\u5199\u7684\uff0c\u4ece\u800c\u5e94\u7528\u7a0b\u5e8f\u4e0d\u5fc5\u4fee\u6539\uff0c\u4fdd\u8bc1\u4e86\u6570\u636e\u4e0e\u7a0b\u5e8f\u7684\u903b\u8f91\u72ec\u7acb\u6027\uff0c\u7b80\u79f0\u6570\u636e\u7684\u903b\u8f91\u72ec\u7acb\u6027\u3002
\n\uff083\uff09\u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf\u5728\u4e09\u7ea7\u6a21\u5f0f\u4e4b\u95f4\u63d0\u4f9b\u7684\u4e24\u5c42\u6620\u50cf\u4fdd\u8bc1\u4e86\u6570\u636e\u5e93\u7cfb\u7edf\u4e2d\u7684\u6570\u636e\u80fd\u591f\u5177\u6709\u8f83\u9ad8\u7684\u903b\u8f91\u72ec\u7acb\u6027\u548c\u7269\u7406\u72ec\u7acb\u6027\u3002
\n\u4e09\u4e2a\u9636\u6bb5
\n\u624b\u5de5\u9636\u6bb5
\n\u6587\u4ef6\u7cfb\u7edf\u9636\u6bb5
\n\u6570\u636e\u5e93\u9636\u6bb5
\ndistinct \u53bb\u91cd
\n!DML\u6570\u636e\u64cd\u7eb5\u8bed\u8a00! :\u589e\u52a0\u3001\u68c0\u7d22\u3001\u63d2\u5165\u3001\u4fee\u6539\u3001\u5220\u9664
\n!DDL\u6570\u636e\u5b9a\u4e49\u8bed\u8a00!\uff1a\u521b\u5efa\u8868\u3001\u521b\u5efa\u89c6\u56fe\u3001\u521b\u5efa\u7ed3\u6784\u4f53
\n!DCL\u6570\u636e\u63a7\u5236\u8bed\u8a00!
\n\u4e09\u7ea7\u6a21\u5f0f:\u5916\u6a21\u5f0f \u6a21\u5f0f \u5185\u6a21\u5f0f\u3001\u4e24\u7ea7\u6620\u50cf:\u7269\u7406\u72ec\u7acb\u6027\u3001\u903b\u8f91\u72ec\u7acb\u6027
\n\u4e09\u7ea7\u6a21\u5f0f
\n\u578b(\u6570\u636e\u5c5e\u6027)\u548c\u503c(\u6570\u636e\u503c)
\n\u6a21\u5f0f\uff08Schema\uff09
\n\u6a21\u5f0f\uff0c\u53c8\u79f0\u6982\u5ff5\u6a21\u5f0f\u6216\u903b\u8f91\u6a21\u5f0f\uff0c\u662f\u6570\u636e\u5e93\u4e2d\u5168\u4f53\u6570\u636e\u7684\u903b\u8f91\u7ed3\u6784\u548c\u7279\u5f81\u7684\u63cf\u8ff0\uff0c\u662f\u6240\u6709\u7528\u6237\u7684\u516c\u5171\u6570\u636e\u89c6\u56fe\u3002\u6a21\u5f0f\u5b9a\u4e49\u4e86\u6570\u636e\u7684\u903b\u8f91\u7ed3\u6784\uff0c\u5305\u62ec\u6570\u636e\u9879\u7684\u540d\u5b57\u3001\u7c7b\u578b\u3001\u53d6\u503c\u8303\u56f4\u7b49\uff0c\u8fd8\u5b9a\u4e49\u4e86\u4e0e\u6570\u636e\u6709\u5173\u7684\u5b89\u5168\u6027\u3001\u5b8c\u6574\u6027\u8981\u6c42\uff0c\u4ee5\u53ca\u6570\u636e\u4e4b\u95f4\u7684\u8054\u7cfb1\u3002
\n# \u793a\u4f8b\uff1a\u5b9a\u4e49\u4e00\u4e2a\u7b80\u5355\u7684\u6570\u636e\u5e93\u6a21\u5f0f
\nCREATE TABLE Users (
\nUserID INT PRIMARY KEY,
\nUserName VARCHAR(100),
\nUserEmail VARCHAR(100)
\n);<\/code>
\n1.1 \u7528\u6237\u7ea7–> \u5916\u6a21\u5f0f(\u53cd\u6620\u4e86\u6570\u636e\u5e93\u7cfb\u7edf\u7684\u7528\u6237\u89c2)
\n\u5916\u6a21\u5f0f\u53c8\u79f0\u5b50\u6a21\u5f0f\u6216\u7528\u6237\u6a21\u5f0f\uff0c\u5bf9\u5e94\u4e8e\u7528\u6237\u7ea7\u3002\u5b83\u662f\u67d0\u4e2a\u6216\u67d0\u51e0\u4e2a\u7528\u6237\u6240\u770b\u5230\u7684\u6570\u636e\u5e93\u7684\u6570\u636e\u89c6\u56fe\uff0c\u662f\u4e0e\u67d0\u4e00\u5e94\u7528\u6709\u5173\u7684\u6570\u636e\u7684\u903b\u8f91\u8868\u793a\u3002\u5916\u6a21\u5f0f\u662f\u4ece\u6a21\u5f0f\u5bfc\u51fa\u7684\u4e00\u4e2a\u5b50\u96c6\uff0c\u5305\u542b\u6a21\u5f0f\u4e2d\u5141\u8bb8\u7279\u5b9a\u7528\u6237\u4f7f\u7528\u7684\u90a3\u90e8\u5206\u6570\u636e\u3002\u7528\u6237\u53ef\u4ee5\u901a\u8fc7\u5916\u6a21\u5f0f\u63cf\u8ff0\u8bed\u8a00\u6765\u63cf\u8ff0\u3001\u5b9a\u4e49\u5bf9\u5e94\u4e8e\u7528\u6237\u7684\u6570\u636e\u8bb0\u5f55(\u5916\u6a21\u5f0f)\uff0c\u4e5f\u53ef\u4ee5\u5229\u7528\u6570\u636e\u64cd\u7eb5\u8bed\u8a00(Data Manipulation Language\uff0cDML)\u5bf9\u8fd9\u4e9b\u6570\u636e\u8bb0\u5f55\u8fdb\u884c\u64cd\u4f5c\u3002
\n1.2 \u6982\u5ff5\u7ea7–> \u6982\u5ff5\u6a21\u5f0f\uff08\u53cd\u6620\u4e86\u6570\u636e\u5e93\u7cfb\u7edf\u7684\u6574\u4f53\u89c2\uff09
\n\u6982\u5ff5\u6a21\u5f0f\u53c8\u79f0\u6a21\u5f0f\u6216\u903b\u8f91\u6a21\u5f0f\uff0c\u5bf9\u5e94\u4e8e\u6982\u5ff5\u7ea7\u3002\u5b83\u662f\u7531\u6570\u636e\u5e93\u8bbe\u8ba1\u8005\u7efc\u5408\u6240\u6709\u7528\u6237\u7684\u6570\u636e\uff0c\u6309\u7167\u7edf\u4e00\u7684\u89c2\u70b9\u6784\u9020\u7684\u5168\u5c40\u903b\u8f91\u7ed3\u6784\uff0c\u662f\u5bf9\u6570\u636e\u5e93\u4e2d\u5168\u90e8\u6570\u636e\u7684\u903b\u8f91\u7ed3\u6784\u548c\u7279\u5f81\u7684\u603b\u4f53\u63cf\u8ff0\uff0c\u662f\u6240\u6709\u7528\u6237\u7684\u516c\u5171\u6570\u636e\u89c6\u56fe(\u5168\u5c40\u89c6\u56fe)\u3002\u5b83\u662f\u7531\u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf\u63d0\u4f9b\u7684\u6570\u636e\u6a21\u5f0f\u63cf\u8ff0\u8bed\u8a00(Data Description Language\uff0cDDL)\u6765\u63cf\u8ff0\u3001\u5b9a\u4e49\u7684\u3002
\n1.3 \u7269\u7406\u7ea7 –> \u5185\u6a21\u5f0f\uff08\u53cd\u6620\u4e86\u6570\u636e\u5e93\u7cfb\u7edf\u7684\u5b58\u50a8\u89c2\uff09
\n\u5185\u6a21\u5f0f\u53c8\u79f0\u5b58\u50a8\u6a21\u5f0f\uff0c\u5bf9\u5e94\u4e8e\u7269\u7406\u7ea7\u3002\u5b83\u662f\u6570\u636e\u5e93\u4e2d\u5168\u4f53\u6570\u636e\u7684\u5185\u90e8\u8868\u793a\u6216\u5e95\u5c42\u63cf\u8ff0\uff0c\u662f\u6570\u636e\u5e93\u6700\u4f4e\u4e00\u7ea7\u7684\u903b\u8f91\u63cf\u8ff0\uff0c\u5b83\u63cf\u8ff0\u4e86\u6570\u636e\u5728\u5b58\u50a8\u4ecb\u8d28\u4e0a\u7684\u5b58\u50a8\u65b9\u5f0f\u548c\u7269\u7406\u7ed3\u6784\uff0c\u5bf9\u5e94\u7740\u5b9e\u9645\u5b58\u50a8\u5728\u5916\u5b58\u50a8\u4ecb\u8d28\u4e0a\u7684\u6570\u636e\u5e93\u3002\u5185\u6a21\u5f0f\u7531\u5185\u6a21\u5f0f\u63cf\u8ff0\u8bed\u8a00\u6765\u63cf\u8ff0\u3001\u5b9a\u4e49\u7684\u3002
\n\u603b\u7ed3\uff1a
\n\u603b\u4e4b\uff0c\u6570\u636e\u6309\u5916\u6a21\u5f0f\u7684\u63cf\u8ff0\u63d0\u4f9b\u7ed9\u7528\u6237\uff1b\u6309\u5185\u6a21\u5f0f\u7684\u63cf\u8ff0\u5b58\u50a8\u5728\u78c1\u76d8\u4e0a\uff1b\u800c\u6982\u5ff5\u6a21\u5f0f\u63d0\u4f9b\u4e86\u8fde\u63a5\u8fd9\u4e24\u7ea7\u6a21\u5f0f\u7684\u76f8\u5bf9\u7a33\u5b9a\u7684\u4e2d\u95f4\u5c42\uff0c\u5e76\u4f7f\u5f97\u4e24\u7ea7\u4e2d\u4efb\u610f\u4e00\u7ea7\u7684\u6539\u53d8\u90fd\u4e0d\u53d7\u53e6\u4e00\u7ea7\u7684\u7275\u5236\u3002
\n\u6570\u636e\u5e93\u7684\u4e24\u7ea7\u6620\u5c04
\n\u6570\u636e\u5e93\u7cfb\u7edf\u5728\u4e09\u7ea7\u6a21\u5f0f\u4e4b\u95f4\u63d0\u4f9b\u4e86\u4e24\u7ea7\u6620\u50cf\uff1a\u6a21\u5f0f\/\u5185\u6a21\u5f0f\u7684\u6620\u50cf\u3001\u5916\u6a21\u5f0f\/\u6a21\u5f0f\u7684\u6620\u50cf\u3002
\n\u2022\t\u6a21\u5f0f\/\u5185\u6a21\u5f0f\u7684\u6620\u50cf\uff1a\u5b9e\u73b0\u6982\u5ff5\u6a21\u5f0f\u5230\u5185\u6a21\u5f0f\u4e4b\u95f4\u7684\u76f8\u4e92\u8f6c\u6362\u3002
\n\u2022\t\u5916\u6a21\u5f0f\/\u6a21\u5f0f\u7684\u6620\u50cf\uff1a\u5b9e\u73b0\u5916\u6a21\u5f0f\u5230\u6982\u5ff5\u6a21\u5f0f\u4e4b\u95f4\u7684\u76f8\u4e92\u8f6c\u6362\u3002
\n\u6570\u636e\u7684\u72ec\u7acb\u6027\u662f\u6307\u6570\u636e\u4e0e\u7a0b\u5e8f\u72ec\u7acb\uff0c\u5c06\u6570\u636e\u7684\u5b9a\u4e49\u4ece\u7a0b\u5e8f\u4e2d\u5206\u79bb\u51fa\u6765\uff0c\u7531DBMS\uff08\u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf\uff09\u8d1f\u8d23\u6570\u636e\u7684\u5b58\u50a8\uff0c\u4ece\u800c\u7b80\u5316\u5e94\u7528\u7a0b\u5e8f\uff0c\u5927\u5927\u51cf\u5c11\u5e94\u7528\u7a0b\u5e8f\u7f16\u5236\u7684\u5de5\u4f5c\u91cf\u3002
\n\u6570\u636e\u7684\u72ec\u7acb\u6027\u662f\u7531DBMS\u7684\u4e8c\u7ea7\u6620\u50cf\u529f\u80fd\u6765\u4fdd\u8bc1\u7684\u3002\u6570\u636e\u7684\u72ec\u7acb\u6027\u5305\u62ec\u6570\u636e\u7684\u7269\u7406\u72ec\u7acb\u6027\u548c\u6570\u636e\u7684\u903b\u8f91\u72ec\u7acb\u6027\u3002
\n\u4ec0\u4e48\u662f\u6570\u636e\u7684\u7269\u7406\u72ec\u7acb\u6027\uff1f
\n\u7b54\uff1a\u6570\u636e\u7684\u7269\u7406\u72ec\u7acb\u6027\u662f\u6307\u5f53\u6570\u636e\u5e93\u7684\u5185\u6a21\u5f0f\u53d1\u751f\u6539\u53d8\u65f6\uff0c\u6570\u636e\u7684\u7684\u903b\u8f91\u7ed3\u6784\u4e0d\u53d8\u3002\u7531\u4e8e\u5e94\u7528\u7a0b\u5e8f\u5904\u7406\u7684\u53ea\u662f\u6570\u636e\u7684\u903b\u8f91\u7ed3\u6784\uff0c\u8fd9\u6837\u7269\u7406\u72ec\u7acb\u6027\u53ef\u4ee5\u4fdd\u8bc1\uff0c\u5f53\u6570\u636e\u7684\u7269\u7406\u7ed3\u6784\u6539\u53d8\u4e86\uff0c\u5e94\u7528\u7a0b\u5e8f\u4e0d\u7528\u6539\u53d8\u3002\u4f46\u662f\uff0c\u4e3a\u4e86\u4fdd\u8bc1\u5e94\u7528\u7a0b\u5e8f\u80fd\u591f\u6b63\u786e\u6267\u884c\uff0c\u9700\u8981\u4fee\u6539\u6982\u5ff5\u6a21\u5f0f\/\u5185\u6a21\u5f0f\u4e4b\u95f4\u7684\u6620\u50cf\u3002
\n\u4ec0\u4e48\u662f\u6570\u636e\u7684\u903b\u8f91\u72ec\u7acb\u6027\uff1f
\n\u7b54\uff1a\u6570\u636e\u7684\u903b\u8f91\u72ec\u7acb\u6027\u662f\u6307\u7528\u6237\u7684\u5e94\u7528\u7a0b\u5e8f\u4e0e\u6570\u636e\u5e93\u7ed3\u6784\u662f\u76f8\u4e92\u72ec\u7acb\u7684\u3002\u6570\u636e\u7684\u903b\u8f91\u7ed3\u6784\u53d1\u751f\u53d8\u5316\u540e\uff0c\u7528\u6237\u7a0b\u5e8f\u4e5f\u53ef\u4ee5\u4e0d\u4fee\u6539\u3002\u4f46\u662f\uff0c\u4e3a\u4e86\u4fdd\u8bc1\u5e94\u7528\u7a0b\u5e8f\u80fd\u591f\u6b63\u786e\u6267\u884c\uff0c\u9700\u8981\u4fee\u6539\u5916\u6a21\u5f0f\/\u6982\u5ff5\u6a21\u5f0f\u4e4b\u95f4\u7684\u6620\u50cf\u3002
\n\u4e00\u53e5\u8bdd\u603b\u7ed3\u4e00\u4e0b\uff1a\u901a\u4fd7\u6765\u8bb2\u5c31\u662f\u5982\u679c\u6539\u53d8\u4e86\u67d0\u4e2a\u6a21\u5f0f\uff0c\u53ea\u9700\u8981\u4fee\u6539\u4e0a\u4e00\u5c42\u7684\u6620\u50cf\u3002\u5373\u6539\u53d8\u5185\u6a21\u5f0f\uff0c\u53ea\u9700\u8981\u4fee\u6539\u6a21\u5f0f\/\u5185\u6a21\u5f0f\u6620\u50cf\uff08\u7269\u7406\u72ec\u7acb\u6027\uff09\uff0c\u6539\u53d8\u6982\u5ff5\u6a21\u5f0f\uff08\u903b\u8f91\u7ed3\u6784\uff09\uff0c\u53ea\u9700\u8981\u4fee\u6539\u5916\u6a21\u5f0f\/\u6a21\u5f0f\u6620\u50cf\uff08\u903b\u8f91\u72ec\u7acb\u6027\uff09
\n\u6a21\u5f0f:\u4e0d\u540c\u7684\u67e5\u8be2\u65b9\u6cd5
\n\u5b9e\u4f8b:\u67e5\u51fa\u6765\u7684\u5185\u5bb9
\nData\uff1a\u6570\u636e\uff0c\u662f\u6570\u636e\u5e93\u4e2d\u5b58\u50a8\u7684\u57fa\u672c\u5bf9\u8c61\uff0c\u662f\u63cf\u8ff0\u4e8b\u7269\u7684\u7b26\u53f7\u8bb0\u5f55\u3002
\nDatabase\uff1a\u6570\u636e\u5e93\uff0c\u662f\u957f\u671f\u50a8\u5b58\u5728\u8ba1\u7b97\u673a\u5185\u3001\u6709\u7ec4\u7ec7\u7684\u3001\u53ef\u5171\u4eab\u7684\u5927\u91cf\u6570\u636e\u7684\u96c6\u5408\u3002
\nDBMS\uff1a\u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf\uff0c\u662f\u4f4d\u4e8e\u7528\u6237\u4e0e\u64cd\u4f5c\u7cfb\u7edf\u4e4b\u95f4\u7684\u4e00\u5c42\u6570\u636e\u7ba1\u7406\u8f6f\u4ef6\uff0c\u7528\u4e8e\u79d1\u5b66\u5730\u7ec4\u7ec7\u3001\u5b58\u50a8\u548c\u7ba1\u7406\u6570\u636e\u3001\u9ad8\u6548\u5730\u83b7\u53d6\u548c\u7ef4\u62a4\u6570\u636e\u3002mysql
\nDBS\uff1a\u6570\u636e\u5e93\u7cfb\u7edf\uff0c\u6307\u5728\u8ba1\u7b97\u673a\u7cfb\u7edf\u4e2d\u5f15\u5165\u6570\u636e\u5e93\u540e\u7684\u7cfb\u7edf\uff0c\u4e00\u822c\u7531\u6570\u636e\u5e93\u3001\u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf\u3001\u5e94\u7528\u7cfb\u7edf\u3001\u6570\u636e\u5e93\u7ba1\u7406\u5458\uff08DBA\uff09\u6784\u6210\u3002\u5b66\u751f\u7ba1\u7406\u7cfb\u7edf
\n\u6570\u636e\u6a21\u578b\uff1a\u662f\u7528\u6765\u62bd\u8c61\u3001\u8868\u793a\u548c\u5904\u7406\u73b0\u5b9e\u4e16\u754c\u4e2d\u7684\u6570\u636e\u548c\u4fe1\u606f\u7684\u5de5\u5177\uff0c\u662f\u5bf9\u73b0\u5b9e\u4e16\u754c\u7684\u6a21\u62df\uff0c\u662f\u6570\u636e\u5e93\u7cfb\u7edf\u7684\u6838\u5fc3\u548c\u57fa\u7840\u5176\u7ec4\u6210\u5143\u7d20\u6709\u6570\u636e\u7ed3\u6784\u3001\u6570\u636e\u64cd\u4f5c\u548c\u5b8c\u6574\u6027\u7ea6\u675f\u3002
\n\u6982\u5ff5\u6a21\u578b\uff1a\u4e5f\u79f0\u4fe1\u606f\u6a21\u578b\uff0c\u662f\u6309\u7528\u6237\u7684\u89c2\u70b9\u6765\u5bf9\u6570\u636e\u548c\u4fe1\u606f\u5efa\u6a21\uff0c\u4e3b\u8981\u7528\u4e8e\u6570\u636e\u5e93\u8bbe\u8ba1\u3002
\n\u903b\u8f91\u6a21\u578b\uff1a\u662f\u6309\u8ba1\u7b97\u673a\u7cfb\u7edf\u7684\u89c2\u70b9\u5bf9\u6570\u636e\u5efa\u6a21\uff0c\u7528\u4e8eDBMS\u5b9e\u73b0\u3002
\n\u7269\u7406\u6a21\u578b\uff1a\u662f\u5bf9\u6570\u636e\u6700\u5e95\u5c42\u7684\u62bd\u8c61\uff0c\u63cf\u8ff0\u6570\u636e\u5728\u7cfb\u7edf\u5185\u90e8\u7684\u8868\u793a\u65b9\u5f0f\u548c\u5b58\u53d6\u65b9\u6cd5\uff0c\u5728\u78c1\u76d8\u6216\u78c1\u5e26\u4e0a\u7684\u5b58\u50a8\u65b9\u5f0f\u548c\u5b58\u53d6\u65b9\u6cd5\uff0c\u662f\u9762\u5411\u8ba1\u7b97\u673a\u7cfb\u7edf\u7684\u3002
\n\u5b9e\u4f53\u548c\u5c5e\u6027\uff1a\u5ba2\u89c2\u5b58\u5728\u5e76\u53ef\u76f8\u4e92\u533a\u522b\u7684\u4e8b\u7269\u79f0\u4e3a\u5b9e\u4f53\u3002\u5b9e\u4f53\u6240\u5177\u6709\u7684\u67d0\u4e00\u7279\u6027\u79f0\u4e3a\u5c5e\u6027\u3002
\nE-R\u56fe\uff1a\u5373\u5b9e\u4f53-\u5173\u7cfb\u56fe\uff0c\u7528\u4e8e\u63cf\u8ff0\u73b0\u5b9e\u4e16\u754c\u7684\u4e8b\u7269\u53ca\u5176\u76f8\u4e92\u5173\u7cfb\uff0c\u662f\u6570\u636e\u5e93\u6982\u5ff5\u6a21\u578b\u8bbe\u8ba1\u7684\u4e3b\u8981\u5de5\u5177
\n11.\u5173\u7cfb\u6a21\u5f0f\uff1a\u4ece\u7528\u6237\u89c2\u70b9\u770b\uff0c\u5173\u7cfb\u6a21\u5f0f\u662f\u7531\u4e00\u7ec4\u5173\u7cfb\u7ec4\u6210\uff0c\u6bcf\u4e2a\u5173\u7cfb\u7684\u6570\u636e\u7ed3\u6784\u662f\u4e00\u5f20\u89c4\u8303\u5316\u7684\u4e8c\u7ef4\u8868\u3002
\n12.\u578b\/\u503c\uff1a\u578b\u662f\u5bf9\u67d0\u4e00\u7c7b\u6570\u636e\u7684\u7ed3\u6784\u548c\u5c5e\u6027\u7684\u8bf4\u660e\uff1b\u503c\u662f\u578b\u7684\u4e00\u4e2a\u5177\u4f53\u8d4b\u503c\uff0c\u662f\u578b\u7684\u5b9e\u4f8b\u3002
\n13.\u6570\u636e\u5e93\u6a21\u5f0f\uff1a\u662f\u5bf9\u6570\u636e\u5e93\u4e2d\u5168\u4f53\u6570\u636e\u7684\u903b\u8f91\u7ed3\u6784\uff08\u6570\u636e\u9879\u7684\u540d\u5b57\u3001\u7c7b\u578b\u3001\u53d6\u503c\u8303\u56f4\u7b49\uff09\u548c\u7279\u5f81\uff08\u6570\u636e\u4e4b\u95f4\u7684\u8054\u7cfb\u4ee5\u53ca\u6570\u636e\u6709\u5173\u7684\u5b89\u5168\u6027\u3001\u5b8c\u6574\u6027\u8981\u6c42\uff09\u7684\u63cf\u8ff0\u3002
\n14.\u6570\u636e\u5e93\u7684\u4e09\u7ea7\u7cfb\u7edf\u7ed3\u6784\uff1a\u5916\u6a21\u5f0f\u3001\u6a21\u5f0f\u548c\u5185\u6a21\u5f0f\u3002
\n15.\u6570\u636e\u5e93\u5185\u6a21\u5f0f\uff1a\u53c8\u79f0\u4e3a\u5b58\u50a8\u6a21\u5f0f\uff0c\u662f\u5bf9\u6570\u636e\u5e93\u7269\u7406\u7ed3\u6784\u548c\u5b58\u50a8\u65b9\u5f0f\u7684\u63cf\u8ff0\uff0c\u662f\u6570\u636e\u5728\u6570\u636e\u5e93\u5185\u90e8\u7684\u8868\u793a\u65b9\u5f0f\u3002\u4e00\u4e2a\u6570\u636e\u5e93\u53ea\u6709\u4e00\u4e2a\u5185\u6a21\u5f0f\u3002
\n16.\u6570\u636e\u5e93\u5916\u6a21\u5f0f\uff1a\u53c8\u79f0\u4e3a\u5b50\u6a21\u5f0f\u6216\u7528\u6237\u6a21\u5f0f\uff0c\u5b83\u662f\u6570\u636e\u5e93\u7528\u6237\u80fd\u591f\u770b\u89c1\u548c\u4f7f\u7528\u7684\u5c40\u90e8\u6570\u636e\u7684\u903b\u8f91\u7ed3\u6784\u548c\u7279\u5f81\u7684\u63cf\u8ff0\uff0c\u662f\u6570\u636e\u5e93\u7528\u6237\u7684\u6570\u636e\u89c6\u56fe\u3002\u901a\u5e38\u662f\u6a21\u5f0f\u7684\u5b50\u96c6\u3002\u4e00\u4e2a\u6570\u636e\u5e93\u53ef\u6709\u591a\u4e2a\u5916\u6a21\u5f0f\u3002
\n17.\u6570\u636e\u5e93\u7684\u4e8c\u7ea7\u6620\u50cf\uff1a\u5916\u6a21\u5f0f\/\u6a21\u5f0f\u6620\u50cf\u3001\u6a21\u5f0f\/\u5185\u6a21\u5f0f\u6620\u50cf\u3002
\n\u91cd\u70b9\u77e5\u8bc6\u70b9
\n1.\u6570\u636e\u5e93\u7cfb\u7edf\u7531\u6570\u636e\u5e93\u3001\u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf\u3001\u5e94\u7528\u7cfb\u7edf\u548c\u6570\u636e\u5e93\u7ba1\u7406\u5458\u6784\u6210\u3002
\n2.\u6570\u636e\u6a21\u578b\u7684\u7ec4\u6210\u8981\u7d20\u662f\uff1a\u6570\u636e\u7ed3\u6784\u3001\u6570\u636e\u64cd\u4f5c\u3001\u5b8c\u6574\u6027\u7ea6\u675f\u6761\u4ef6\u3002
\n3.\u5b9e\u4f53\u578b\u4e4b\u95f4\u7684\u8054\u7cfb\u5206\u4e3a\u4e00\u5bf9\u4e00\u3001\u4e00\u5bf9\u591a\u548c\u591a\u5bf9\u591a\u4e09\u79cd\u7c7b\u578b\u3002
\n4.\u5e38\u89c1\u7684\u6570\u636e\u6a21\u578b\u5305\u62ec\uff1a\u5173\u7cfb\u3001\u5c42\u6b21\u3001\u7f51\u72b6\u3001\u9762\u5411\u5bf9\u8c61\u3001\u5bf9\u8c61\u5173\u7cfb\u6620\u5c04\u7b49\u51e0\u79cd\u3002
\n5.\u5173\u7cfb\u6a21\u578b\u7684\u5b8c\u6574\u6027\u7ea6\u675f\u5305\u62ec\uff1a\u5b9e\u4f53\u5b8c\u6574\u6027\u3001\u53c2\u7167\u5b8c\u6574\u6027\u548c\u7528\u6237\u5b9a\u4e49\u5b8c\u6574\u6027\u3002
\n6.\u9610\u8ff0\u6570\u636e\u5e93\u4e09\u7ea7\u6a21\u5f0f\u3001\u4e8c\u7ea7\u6620\u8c61\u7684\u542b\u4e49\u53ca\u4f5c\u7528\u3002\u6570\u636e\u5e93\u4e09\u7ea7\u6a21\u5f0f\u53cd\u6620\u7684\u662f\u6570\u636e\u7684\u4e09\u4e2a\u62bd\u8c61\u5c42\u6b21\uff1a \u6a21\u5f0f\u662f\u5bf9\u6570\u636e\u5e93\u4e2d\u5168\u4f53\u6570\u636e\u7684\u903b\u8f91\u7ed3\u6784\u548c\u7279\u5f81\u7684\u63cf\u8ff0\u3002\u5185\u6a21\u5f0f\u53c8\u79f0\u4e3a\u5b58\u50a8\u6a21\u5f0f\uff0c\u662f\u5bf9\u6570\u636e\u5e93\u7269\u7406\u7ed3\u6784\u548c\u5b58\u50a8\u65b9\u5f0f\u7684\u63cf\u8ff0\u3002\u5916\u6a21\u5f0f\u53c8\u79f0\u4e3a\u5b50\u6a21\u5f0f\u6216\u7528\u6237\u6a21\u5f0f\uff0c\u662f\u5bf9\u7279\u5b9a\u6570\u636e\u5e93\u7528\u6237\u76f8\u5173\u7684\u5c40\u90e8\u6570\u636e\u7684\u903b\u8f91\u7ed3\u6784\u548c\u7279\u5f81\u7684\u63cf\u8ff0\u3002\u6570\u636e\u5e93\u4e09\u7ea7\u6a21\u5f0f\u901a\u8fc7\u4e8c\u7ea7\u6620\u8c61\u5728 DBMS \u5185\u90e8\u5b9e\u73b0\u8fd9\u4e09\u4e2a\u62bd\u8c61\u5c42\u6b21\u7684\u8054\u7cfb\u548c\u8f6c\u6362\u3002\u5916\u6a21\u5f0f\u9762\u5411\u5e94\u7528\u7a0b\u5e8f\uff0c \u901a\u8fc7\u5916\u6a21\u5f0f\/\u6a21\u5f0f\u6620\u8c61\u4e0e\u903b\u8f91\u6a21\u5f0f\u5efa\u7acb\u8054\u7cfb\uff0c \u5b9e\u73b0\u6570\u636e\u7684\u903b\u8f91\u72ec\u7acb\u6027\u3002 \u6a21\u5f0f\/\u5185\u6a21\u5f0f\u6620\u8c61\u5efa\u7acb\u6a21\u5f0f\u4e0e\u5185\u6a21\u5f0f\u4e4b\u95f4\u7684\u4e00\u5bf9\u4e00\u6620\u5c04\uff0c \u5b9e\u73b0\u6570\u636e\u7684\u7269\u7406\u72ec\u7acb\u6027\u3002
\n\u5c06\u76f8\u5173\u7684\u4eba\u5458\u7684ID\u8bb0\u5230\u4e00\u8d77\u53eb\u5173\u7cfb
\n\u4e00\u4e2a\u6570\u636e\u5e93\u53ea\u6709\u4e00\u4e2a\u6a21\u5f0f
\n\u5916\u6a21\u5f0f\u662f\u5bf9\u6a21\u5f0f\u7684\u4e0d\u540c\u770b\u6cd5
\n\u5916\u6a21\u5f0f\u901a\u5e38\u662f\u6a21\u5f0f\u7684\u5b50\u96c6
\n\u4e00\u4e2a\u6570\u636e\u5e93\u53ef\u4ee5\u6709\u591a\u4e2a\u5916\u6a21\u5f0f
\n\u4e00\u4e2a\u5e94\u7528\u7a0b\u5e8f\u53ea\u80fd\u6709\u4e00\u4e2a\u5916\u6a21\u5f0f
\n\u5185\u6a21\u5f0f\u662f\u6570\u636e\u7269\u7406\u7ed3\u6784\u548c\u5b58\u50a8\u65b9\u5f0f\u7684\u63cf\u8ff0
\n\u4e00\u4e2a\u6570\u636e\u5e93\u53ea\u6709\u4e00\u4e2a\u5185\u6a21\u5f0f
\nS#\u7f16\u53f7
\n\u692d\u5706\u5c5e\u6027
\n\u83f1\u5f62\u8054\u7cfb
\n\u65b9\u5f62\u5b9e\u4f53
\n\u7ebf
\n20250314
\nE-R\u56fe
\n\u8054\u7cfb:\u5b66\u751f\u901a\u8fc7\u5b66\u53f7\u9009\u4fee\u8bfe\u7a0b\uff0c\u8054\u7cfb\u4e24\u4e2a\u5b9e\u4f53 \u552f\u4e00\u7f16\u53f7\u5bf9\u552f\u4e00\u7f16\u53f7
\n\u5b9e\u4f53\u7801:\u6807\u8bc6\u5b9e\u4f53\u7684\u552f\u4e00\u6807\u8bc6\u7b26
\n\u57df:\u53d6\u503c\u8303\u56f4\uff0c\u5b9e\u4f53\u8303\u56f4
\n\u7ec4\u5408\u591a\u503c
\n\u5c5e\u6027\u4e2d\u4e0d\u80fd\u51fa\u73b0\u7ec4\u5408\u5c5e\u6027\u548c\u591a\u503c\u5c5e\u6027\uff0c\u5fc5\u987b\u8f6c\u6362\u4e3a\u539f\u5b50\u5c5e\u6027\u548c\u5355\u503c\u5c5e\u6027
\n\u8054\u7cfb
\n\u4e00\u5bf9\u4e00
\n\u4e00\u5bf9\u591a
\n\u591a\u5bf9\u591a
\n\u6570\u636e\u6a21\u578b\uff08\u4e25\u683c\u5b9a\u4e49\u7684\u4e00\u7ec4\u6982\u5ff5\u6a21\u578b):
\n \u6570\u636e\u7ed3\u6784\uff08\u7cfb\u7edf\u9759\u6001\u7279\u6027\uff09
\n \u6570\u636e\u64cd\u4f5c\uff08\u7cfb\u7edf\u52a8\u6001\u7279\u6027\uff09\uff1a\u5305\u62ec\u67e5\u8be2\u589e\u5220\u6539
\n \u6570\u636e\u5b8c\u6574\u6027\u7ea6\u675f\uff08\u5b8c\u6574\u6027\u89c4\u5219\u96c6\u5408\uff09\uff1a\u4fdd\u8bc1\u6570\u636e\u6709\u6548\u5b8c\u6574\u4e00\u81f4\uff0c\u6709\u4fdd\u969c
\n\u5143\u7ec4\uff1a\u4e00\u884c\u6216\u8005\u4e00\u4e2a\u5b66\u751f
\n\u5c5e\u6027\uff1a\u4e00\u5217
\n\u8868\u540d\uff1a\u5173\u7cfb\u8868\u7684\u540d\u79f0
\n\u57df\uff1a\u6bcf\u4e2a\u5c5e\u6027\u7684\u53d6\u503c\u8303\u56f4
\n\u5173\u7cfb\u6a21\u5f0f\u53ef\u8868\u793a\u4e3a\uff1a
\n\u5173\u7cfb\u6a21\u5f0f\u540d(\u5c5e\u6027\u540d1\uff0c\u5c5e\u6027\u540d2\uff0c……\u5c5e\u6027\u540dn)
\n\u5b66\u751f(\u5b66\u53f7<\/em>\uff0c\u59d3\u540d……) \u5b66\u53f7\u662f\u4e3b\u5c5e\u6027\uff0c\u4e00\u5b9a\u8981\u6807\u4e3b\u5c5e\u6027
\n\u5173\u7cfb\u53c8\u79f0\u8868
\n\u5173\u7cfb\u6570\u636e\u5e93\u662f\u82e5\u5e72\u8868\u7684\u96c6\u5408
\n\u5173\u7cfb\u6a21\u5f0f\u51b3\u5b9a\u5176\u5bf9\u5e94\u5173\u7cfb\u7684\u5185\u5bb9
\n\u6bcf\u4e00\u4e2a\u5173\u7cfb\u90fd\u5fc5\u987b\u547d\u540d
\n\u4e14\u540c\u4e00\u5173\u7cfb\u6570\u636e\u6a21\u578b\u4e2d\u5173\u7cfb\u540d\u4e92\u4e0d\u76f8\u540c
\n\u5173\u7cfb\u6a21\u5f0f:\u8868\u7ed3\u6784
\n\u5173\u7cfb:\u6570\u636e
\n\u5143\u7ec4\uff1a\u5173\u7cfb\u4e2d\u7684\u4e00\u884c\u6216\u8005\u8bb0\u5f55
\n\u7801\uff1a\u6781\u5c0f\u7684\u5c5e\u6027\u7ec4
\n**\u5173\u7cfb\u662f\u7b1b\u5361\u5c14\u79ef\u4e2d\u6709\u610f\u4e49\u7684\u5b50\u96c6**<\/u>
\n\u5173\u7cfb\u4e5f\u53ef\u4ee5\u8868\u793a\u4e3a\u4e8c\u7ef4\u8868
\n\u4e0d\u540c\u7684\u5217\u53ef\u51fa\u81ea\u4e8e\u540c\u4e00\u5143\u7ec4
\n\u4efb\u4e24\u4e2a\u5143\u7ec4\u4e0d\u80fd\u5b8c\u5168\u76f8\u540c
\n\u96c6\u5408\u5185\u4e0d\u80fd\u6709\u76f8\u540c\u7684\u4e24\u4e2a\u5143\u7d20
\n\"\"
\n\"\"
\n\"\"
\n\u8868\u4e2d\u7684\u6bcf\u4e00\u9879\u90fd\u662f\u4e0d\u53ef\u5206\u7684\u57fa\u672c\u6570\u636e\u9879<\/strong>
\n\u00b7\u7801\uff08\u53c8\u79f0\u5173\u952e\u5b57\uff0ckey\uff09
\n \u25a0\u5019\u9009\u7801
\n \u00b7\u80fd\u552f\u4e00\u786e\u5b9a\u4e00\u4e2a\u5143\u7ec4\u7684\u67d0\u4e00\u6781\u5c0f\u5c5e\u6027\u7ec4
\n \u00b7\u4e3b\u7801\uff08PrimaryKey\uff09
\n \u00b7\u4e3a\u5173\u7cfb\u7ec4\u7ec7\u7269\u7406\u6587\u4ef6\u65f6\u901a\u5e38\u9009\u7528\u4e00\u4e2a\u5019\u9009\u7801\u4f5c\u4e3a\u63d2\u5165\u3001\u5220\u9664
\n \u4fee\u6539\u3001\u68c0\u7d22\u5143\u7ec4\u7684\u64cd\u4f5c\u53d8\u91cf\uff0c\u88ab\u9009\u7528\u7684\u5019\u9009\u7801\u6210\u4e3a\u4e3b\u7801\u3002
\n \u00b7\u4e3b\u7801\u4e00\u7ecf\u9009\u5b9a\u901a\u5e38\u4e0d\u53d8\uff0c\u4e00\u4e2a\u5173\u7cfb\u4e2d\u53ea\u6709\u4e00\u4e2a\u4e3b\u7801\u3002
\n\u00b7\u5916\u90e8\u7801\uff08ForeignKey\uff09
\n \u00b7\u5982\u679c\u5173\u7cfbR\u7684\u67d0\u4e00\u5c5e\u6027\u7ec4\u4e0d\u662f\u8be5\u5173\u7cfb\u672c\u8eab\u7684\u5019\u9009\u7801\uff0c\u800c\u662f\u53e6\u4e00\u4e2a
\n \u5173\u7cfb\u7684\u5019\u9009\u7801\uff0c\u5219\u79f0\u8be5\u5c5e\u6027\u7ec4\u662fR\u7684\u5916\u90e8\u7801\u3002
\n \u3010\u4f8b\u3011\u6709 \u5b66\u751f\u5173\u7cfbS\uff08Sno,Sname,Sex,Dno\uff09
\n \u548c\u4e13\u4e1a\u5173\u7cfbDEPT\uff08Dno\uff0cDname\uff09<\/p>\n

\u5173\u7cfb\u6a21\u5f0f\u56fe<\/strong><\/p>\n

\u5b66\u751f(\u5b66\u53f7<\/em>,\u59d3\u540d,\u5e74\u9f84)
\n\u8bfe\u7a0b(\u8bfe\u7a0b\u53f7<\/em>,\u8bfe\u7a0b\u540d\u79f0)
\n\u9009\u4fee(\u5b66\u53f7\uff0c\u8bfe\u7a0b\u53f7<\/em>\uff0c\u6210\u7ee9)
\nm:n\u591a\u5bf9\u591a<\/strong><\/p>\n

1:n\u4e00\u5bf9\u591a
\n\u73ed\u7ea7(\u73ed\u7ea7\u53f7<\/em>\uff0c\u73ed\u7ea7\u540d\u79f0\uff0c\u5b66\u751f\u53f71\uff0c\u5b66\u751f\u53f72\uff0c……\u5b66\u751f\u53f7n)
\n\u5b66\u751f(\u5b66\u751f\u53f7<\/em>\uff0c\u59d3\u540d\uff0c\u5e74\u9f84\uff0c\u73ed\u7ea7\u7f16\u53f7)<\/strong><\/p>\n

1:1\u4e00\u5bf9\u4e00
\n\u7ba1\u7406(\u6559\u5e08\u7f16\u53f7<\/em>\uff0c\u6559\u5e08\u59d3\u540d\uff0c\u73ed\u7ea7\u7f16\u53f7\uff0c\u73ed\u7ea7\u540d\u79f0)<\/strong><\/p>\n

\u6559\u5e08\uff08\u6559\u5e08\u7f16\u53f7<\/em>\uff0c\u6559\u5e08\u540d\u79f0\uff09
\n\u8bfe\u7a0b\uff08\u8bfe\u7a0b\u7f16\u53f7<\/em>\uff0c\u8bfe\u7a0b\u540d\u79f0\uff09
\n\u6559\u79d1\u4e66\uff08\u6559\u79d1\u4e66\u7f16\u53f7<\/em>\uff0c\u6559\u79d1\u4e66\u540d\u79f0\uff09
\n\u8bb2\u6388\uff08\u6559\u5e08\u7f16\u53f7\uff0c\u8bfe\u7a0b\u7f16\u53f7\uff0c\u6559\u79d1\u4e66\u7f16\u53f7<\/em>\uff09
\n\u4e09\u5143\u5173\u7cfb<\/strong><\/p>\n

\u6559\u5e08\uff08\u6559\u5e08\u7f16\u53f7<\/em>\uff0c\u6559\u5e08\u540d\u79f0\uff0c\u7ba1\u7406\u8005\u6559\u5e08\u7f16\u53f7)
\n\u81ea\u8054\u7cfb\u4e00\u5bf9\u591a<\/strong><\/p>\n

\u7ec4\u7ec7\u67b6\u6784(\u673a\u6784\u7f16\u53f7<\/em>\uff0c\u673a\u6784\u540d\u79f0\uff0c\u7236\u673a\u6784\u7f16\u53f7\uff0c\u673a\u6784\u7c7b\u578b)<\/strong><\/p>\n

SQL\u5206\u7c7b
\n\u00b7\u6570\u636e\u5b9a\u4e49\u8bed\u8a00 DDL \uff08Data Definition Language\uff09
\n\u00b7\u7528\u4e8e\u521b\u5efa\u3001\u66f4\u6539\u6216\u5220\u9664\u6570\u636e\u5e93\u5bf9\u8c61\uff0c\u5982\u8868\u3001\u89c6\u56fe\u3001\u7d22\u5f15\u53ca\u5176
\n\u5b83\u5bf9\u8c61\u3002
\n\u00b7\u8bed\u53e5\u5305\u62ec\uff1aCREATE\u3001ALTER\u3001DROP\u00b7
\n\u6570\u636e\u64cd\u7eb5\u8bed\u8a00DML\uff08Data Manipulation Language\uff09
\n \u25a0\u7528\u4e8e\u64cd\u7eb5\u6570\u636e\u5e93\u5bf9\u8c61\u3002
\n \u00b7\u8bed\u53e5\u5305\u62ec\uff1aSELECT\u3001INSERT\u3001UPDATE\u3001DELETE
\n\u00b7\u6570\u636e\u63a7\u5236\u8bed\u8a00DCL \uff08Data Control Language\uff09
\n \u00b7\u7528\u4e8e\u5b9a\u4e49\u63a7\u5236\u8bbf\u95ee\u5bf9\u8c61\u3002
\n \u00b7\u8bed\u53e5\u5305\u62ec\uff1aGRANT\u3001REVOKE<\/strong><\/p>\n


\n\u6821\u5185\u6570\u636e\u5e93\uff1a
\n\u670d\u52a1\u540d\uff1aorcl
\nip\uff1a10.130.4.229
\n\u7aef\u53e3\uff1a1521<\/strong>
\n\u6821\u5916\u6570\u636e\u5e93\uff1a
\n\u670d\u52a1\u540d\uff1aJEM11GR2
\nip\uff1a120.55.192.11
\n\u7aef\u53e3\uff1a21521<\/strong>
\n\u3010\u817e\u8baf\u6587\u6863\u3011Oracle\u7528\u6237\u521b\u5efa\u811a\u672c
\nhttps:\/\/docs.qq.com\/doc\/DUmpzcXZvQXRQQWxy<\/strong>
\n\u6837\u4f8b\uff1acreate user zhangsan identified by zs123\uff1b grant connect,resource to zhangsan\uff1b
\n\/*zhangsan \u4ee3\u8868\u7528\u6237\u540d\uff0czs123\u4ee3\u8868\u5bc6\u7801*\/<\/strong>
\n\u5404\u7528\u6237\u540d\u548c\u5bc6\u7801<\/strong>
\n\/*\u7528\u6237\u521b\u5efa\u8bed\u53e5*\/
\n\u6837\u4f8b\uff1acreate user zhangsan identified by zs123; grant connect,resource to zhangsan;
\n\/*zhangsan \u4ee3\u8868\u7528\u6237\u540d\uff0czs123\u4ee3\u8868\u5bc6\u7801*\/
\ncreate user zhoujiaying identified by zjy1013123;
\ngrant connect,resource to zhoujiaying;
\ncreate user shitianjing identified by stj060529;
\ngrant connect,resource to shitianjing;
\ncreate user zhangkaixi identified by zhangqq123;
\ngrant connect,resource to zhangkaixi;
\ncreate user yangyikai identified by yyk12345;
\n grant connect,resource to yangyikai;
\ncreate user nermay identified by lzk123;
\ngrant connect,resource to nermay;
\ncreate user sunjialu identified by sjl051108;
\ngrant connect,resource to sunjialu;
\ncreate user huangji identified by 060425;
\ngrant connect,resource to huangji;
\ncreate user chenzhizhang identified by czz123;
\ngrant connect,resource to chenzhizhang;
\ncreate user luobowen identified by lbw123;
\ngrant connect,resource to luobowen;
\ncreate user mrhuo identified by z36970508;
\ngrant connect,resource to mrhuo;
\ncreate user wangyile identified by 0205;
\ngrant connect,resource to wangyile;
\ncreate user zhjx identified by zhjx;
\ngrant connect,resource to zhjx;
\ncreate user zhangzihan identified by zzh20050527;
\ngrant connect,resource to zhangzihan;
\ncreate user zhuyijie identified by zhuyijie0215;
\ngrant connect,resource to zhuyijie;
\ncreate user qiyuhao identified by qyh123;
\ngrant connect,resource to qiyuhao;
\ncreate user zhengzhirui identified by zhengzhirui0718;
\ngrant connect,resource to zhengzhirui;
\ncreate user wangruobing identified by 249050206;
\ngrant connect,resource to wangruobing;
\ncreate user dumingkun identified by dmk123;
\ngrant connect,resource to dumingkun;
\ncreate user yitao identified by zytdsg123;
\ngrant connect,resource to yitao;
\ncreate user yuxiao identified by yx123;
\ngrant connect,resource to yuxiao;
\ncreate user chennuo identified by cn93030917;
\ngrant connect,resource to chennuo;
\ncreate user xiongtaokai identified by 249050931;
\ngrant connect,resource to xiongtaokai;
\ncreate user chenguowei identified by zjzs123456;
\ngrant connect,resource to chenguowei;
\ncreate user chenxingxing identified by cxx123;
\ngrant connect,resource to chenxingxing;
\ncreate user xwm identified by asdxiang6666;
\ngrant connect,resource to xwm;
\ncreate user hurkin identified by can123456;
\ngrant connect,resource to hurkin;
\ncreate user lutangyuan identified by lu123;
\n grant connect,resource to lutangyuan;
\ncreate user caijiayi identified by cjy123;
\ngrant connect,resource to caijiayi;
\ncreate user lixuening identified by lxn021221;
\ngrant connect,resource to lixuening;
\ncreate user zhangruihan identified by zrh0408;
\ngrant connect,resource to zhangruihan;
\ncreate user mlb identified by mlb87863102;
\ngrant connect,resource to mlb;<\/code><\/p>\n","protected":false},"excerpt":{"rendered":"

\u67b6\u6784: \u6570\u636e ! \u8bb0\u5f55 ! \u8868 ! \u6570\u636e\u5e93\uff08\u53ef\u5171\u4eab\u7684\u6570\u636e\u96c6\u5408\uff09 ! \u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf(\u8f6f\u4ef6):\u7ba1\u7406\u6570\u636e\u5e93 ! \u6570\u636e\u5e93\u7cfb\u7edf:\u57fa\u4e8e\u6570\u636e\u5e93\u7684\u5e94\u7528\u7cfb\u7edf ! \u6570\u636e\u72ec\u7acb\u6027 !\u9ad8\u5ea6\u7684\u6570\u636e\u7269\u7406\u72ec\u7acb\u6027 !:\u5b58\u50a8\u7ed3\u6784\u6539\u53d8\u5e94\u7528\u7a0b\u5e8f\u4e0d\u6539\u53d8(\u684c\u5b50\u8fd8\u662f\u684c\u5b50) !\u4e00\u5b9a\u7684\u6570\u636e\u903b\u8f91\u72ec\u7acb\u6027 !:\u903b\u8f91\u7ed3\u6784\u6539\u53d8\u65f6\u5e94\u7528\u7a0b\u5e8f\u4e0d\u6539\u53d8(\u4e0d\u540c\u4eba\u770b) \uff081\uff09\u6570\u636e\u4e0e\u7a0b\u5e8f\u7684\u7269\u7406\u72ec\u7acb\u6027\uff1a\u5f53\u6570\u636e\u5e93\u7684\u5b58\u50a8\u7ed3\u6784\u6539\u53d8\u4e86\uff0c\u7531\u6570\u636e\u5e93\u7ba1\u7406\u5458\u5bf9\u6a21\u5f0f\uff0f\u5185\u6a21\u5f0f\u6620\u50cf\u505a\u76f8\u5e94\u6539\u53d8\uff0c\u53ef\u4ee5\u4f7f\u6a21\u5f0f\u4fdd\u6301\u4e0d\u53d8\uff0c\u4ece\u800c\u5e94\u7528\u7a0b\u5e8f\u4e5f\u4e0d\u5fc5\u6539\u53d8\uff0c\u4fdd\u8bc1\u4e86\u6570\u636e\u4e0e\u7a0b\u5e8f\u7684\u7269\u7406\u72ec\u7acb\u6027\uff0c\u7b80\u79f0\u6570\u636e\u7684\u7269\u7406\u72ec\u7acb\u6027\u3002 \uff082\uff09\u6570\u636e\u4e0e\u7a0b\u5e8f\u7684\u903b\u8f91\u72ec\u7acb\u6027\uff1a\u5f53\u6a21\u5f0f\u6539\u53d8\u65f6\uff08\u4f8b\u5982\u589e\u52a0\u65b0\u7684\u5173\u7cfb\u3001\u65b0\u7684\u5c5e\u6027\u3001\u6539\u53d8\u5c5e\u6027\u7684\u6570\u636e\u7c7b\u578b\u7b49\uff09\uff0c\u7531\u6570\u636e\u5e93\u7ba1\u7406\u5458\u5bf9\u5404\u4e2a\u5916\u6a21\u5f0f\uff0f\u6a21\u5f0f\u7684\u6620\u50cf\u505a\u76f8\u5e94\u6539\u53d8\uff0c\u53ef\u4ee5\u4f7f\u5916\u6a21\u5f0f\u4fdd\u6301\u4e0d\u53d8\u3002\u5e94\u7528\u7a0b\u5e8f\u662f\u4f9d\u636e\u6570\u636e\u7684\u5916\u6a21\u5f0f\u7f16\u5199\u7684\uff0c\u4ece\u800c\u5e94\u7528\u7a0b\u5e8f\u4e0d\u5fc5\u4fee\u6539\uff0c\u4fdd\u8bc1\u4e86\u6570\u636e\u4e0e\u7a0b\u5e8f\u7684\u903b\u8f91\u72ec\u7acb\u6027\uff0c\u7b80\u79f0\u6570\u636e\u7684\u903b\u8f91\u72ec\u7acb\u6027\u3002 \uff083\uff09\u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf\u5728\u4e09\u7ea7\u6a21\u5f0f\u4e4b\u95f4\u63d0\u4f9b\u7684\u4e24\u5c42\u6620\u50cf\u4fdd\u8bc1\u4e86\u6570\u636e\u5e93\u7cfb\u7edf\u4e2d\u7684\u6570\u636e\u80fd\u591f\u5177\u6709\u8f83\u9ad8\u7684\u903b\u8f91\u72ec\u7acb\u6027\u548c\u7269\u7406\u72ec\u7acb\u6027\u3002 \u4e09\u4e2a\u9636\u6bb5 \u624b\u5de5\u9636\u6bb5 \u6587\u4ef6\u7cfb\u7edf\u9636\u6bb5 \u6570\u636e\u5e93\u9636\u6bb5 distinct \u53bb\u91cd !DML\u6570\u636e\u64cd\u7eb5\u8bed\u8a00! 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