{"id":324,"date":"2019-05-05T01:58:00","date_gmt":"2019-05-05T01:58:00","guid":{"rendered":"http:\/\/pro369.com\/Website_Design\/?p=7"},"modified":"2019-05-05T01:58:00","modified_gmt":"2019-05-05T01:58:00","slug":"mysql%e8%b3%87%e6%96%99%e5%ba%ab%e8%aa%9e%e6%b3%95%e6%95%99%e5%ad%b8%e8%aa%b2%e7%a8%8b%ef%bc%88%e7%b6%b2%e7%ab%99%e6%9e%b6%e8%a8%ad%e7%b6%b2%e9%a0%81%e8%a8%ad%e8%a8%88%e5%af%86%e8%a8%93%e5%9f%ba%e5%9c","status":"publish","type":"post","link":"https:\/\/por.tw\/Website_Design\/mysql%e8%b3%87%e6%96%99%e5%ba%ab%e8%aa%9e%e6%b3%95%e6%95%99%e5%ad%b8%e8%aa%b2%e7%a8%8b%ef%bc%88%e7%b6%b2%e7%ab%99%e6%9e%b6%e8%a8%ad%e7%b6%b2%e9%a0%81%e8%a8%ad%e8%a8%88%e5%af%86%e8%a8%93%e5%9f%ba%e5%9c\/","title":{"rendered":"MySQL\u8cc7\u6599\u5eab\u8a9e\u6cd5\u6559\u5b78\u8ab2\u7a0b\uff08\u7db2\u7ad9\u67b6\u8a2d\u7db2\u9801\u8a2d\u8a08\u5bc6\u8a13\u57fa\u5730\uff09"},"content":{"rendered":"<p><strong><font size=\"3\" color=\"#0000ff\"><font color=\"#ff00ff\">MySQL\u8cc7\u6599\u5eab\u8a9e\u6cd5\u6559\u5b78\u8ab2\u7a0b\uff08\u7db2\u7ad9\u67b6\u8a2d\u7db2\u9801\u8a2d\u8a08\u5bc6\u8a13\u57fa\u5730\uff09<\/p>\n<p> <\/font>\u4f7f\u7528PHP\u7a0b\u5f0f\u8a9e\u8a00\u67b6\u8a2d\u7db2\u7ad9\u6642\uff0c\u8cc7\u6599\u5eab\u6700\u5e38\u4f7f\u7528\u7684\u7576\u7136\u662f\uff1aMySQL\u8cc7\u6599\u5eab<br \/> MySQL\u8cc7\u6599\u5eab\u6613\u5b78\u96e3\u7cbe\uff0c\u8af8\u591a\u8a9e\u6cd5\u5f88\u96e3\u4e00\u4e00\u6b7b\u8a18\u6216\u6b7b\u80cc\uff01<br \/> \u6709\u95dc\u65bc\u4f7f\u7528PHP\u7a0b\u5f0f\u8a9e\u8a00\u7684\u4e00\u4e9b\u6280\u8853\u554f\u984c\uff08\u6211\u7ffb\u8b6f\u4e86\u5b8c\u6574\u7684\u6280\u8853\u624b\u518a\uff09<br \/> \u4e0a\u50b3\u5728\u6211\u7684\u7db2\u7ad9\u63d0\u4f9b\u7db2\u8def\u5b78\u54e1\u5b78\u7fd2\u53ca\u67e5\u8a62\uff01<\/p>\n<p> <font color=\"#008000\">MySQL\u8cc7\u6599\u5eab\u8a9e\u6cd5\u6559\u5b78\u8ab2\u7a0b\u7db2\u5740\uff1a<\/p>\n<p> <\/font><\/font><\/strong><\/p>\n<p><a href=\"https:\/\/visdacom.com\/Website_Design\/MySQL_mysql\/index.html\" target=\"_blank\" rel=\"noopener noreferrer\"><strong><font size=\"3\" color=\"#0000ff\">https:\/\/visdacom.com\/Website_Design\/MySQL_mysql\/index.html<\/font><\/strong><br \/> <\/a><\/p>\n<p><font size=\"2\"><strong><font size=\"3\" color=\"#800000\">MySQL\u7684\u7684\u4e3b\u8981\u7279\u6027\uff1a<\/font><\/strong><br \/> \u4e0b\u9762\u4ecb\u7d39\u4e86MySQL\u8cc7\u6599\u5eab\u8edf\u9ad4\u7684\u4e00\u4e9b\u91cd\u8981\u7279\u6027\u3002 <\/font><\/p>\n<p><font size=\"2\">&middot; \u5167\u5b9a\u69cb\u4ef6\u548c\u53ef\u79fb\u690d\u6027<\/font><\/p>\n<p><font size=\"2\">o\u4f7f\u7528C\u548cC++\u7de8\u5beb <\/font><\/p>\n<p><font size=\"2\">o\u7528\u773e\u591a\u4e0d\u540c\u7684\u7de8\u8b6f\u5668\u9032\u884c\u4e86\u6e2c\u8a66 <\/font><\/p>\n<p><font size=\"2\">o\u80fd\u5920\u5de5\u4f5c\u5728\u773e\u591a\u4e0d\u540c\u7684\u5e73\u53f0\u4e0a\u3002<\/font><\/p>\n<p><font size=\"2\">o\u4f7f\u7528GNU Automake\u3001Autoconf\u548cLibtool\u9032\u884c\u79fb\u690d\u3002<\/font><\/p>\n<p><font size=\"2\">o\u63d0\u4f9b\u4e86\u7528\u65bcC\u3001C++\u3001Eiffel\u3001Java\u3001Perl\u3001PHP\u3001Python\u3001Ruby\u548cTcl\u7684API\u3002<\/font><\/p>\n<p><font size=\"2\">o\u63a1\u7528\u6838\u5fc3\u57f7\u884c\u7dd2\u7684\u5b8c\u5168\u591a\u57f7\u884c\u7dd2 \u5982\u679c\u6709\u591a\u500bCPU\uff0c\u5b83\u80fd\u65b9\u4fbf\u5730\u4f7f\u7528\u9019\u4e9bCPU\u3002<\/font><\/p>\n<p><font size=\"2\">o\u63d0\u4f9b\u4e86\u4e8b\u52d9\u6027\u548c\u975e\u4e8b\u52d9\u6027\u5b58\u5132\u5f15\u64ce\u3002<\/font><\/p>\n<p><font size=\"2\">o\u4f7f\u7528\u4e86\u6975\u5feb\u7684\u300cB\u6a39\u300d\u78c1\u789f\u8868\uff08MyISAM\uff09\u548c\u7d22\u5f15\u58d3\u7e2e\u3002<\/font><\/p>\n<p><font size=\"2\">o\u52a0\u5165\u53e6\u4e00\u500b\u5b58\u5132\u5f15\u64ce\u76f8\u5c0d\u7c21\u55ae\u3002\u5982\u679c\u6253\u7b97\u70ba\u5167\u5b9a\u8cc7\u6599\u5eab\u52a0\u5165\u4e00\u500bSQL\u4ecb\u9762\uff0c\u8a72\u7279\u6027\u5341\u5206\u6709\u7528\u3002<\/font><\/p>\n<p><font size=\"2\">o\u6975\u5feb\u7684\u57fa\u65bc\u57f7\u884c\u7dd2\u7684\u8a18\u61b6\u9ad4\u914d\u7f6e\u7cfb\u7d71\u3002<\/font><\/p>\n<p><font size=\"2\">o\u901a\u904e\u4f7f\u7528\u6539\u5584\u7684\u300c\u55ae\u6383\u7784\u591a\u9023\u7dda\u300d\uff0c\u80fd\u5be6\u73fe\u6975\u5feb\u7684\u9023\u7dda\u3002<\/font><\/p>\n<p><font size=\"2\">o\u5b58\u5132\u5668\u4e2d\u7684\u54c8\u5e0c\u8868\u7528\u4f5c\u81e8\u6642\u8868\u3002<\/font><\/p>\n<p><font size=\"2\">oSQL\u51fd\u6578\u662f\u4f7f\u7528\u9ad8\u5ea6\u6539\u5584\u7684\u985e\u5eab\u5be6\u73fe\u7684\uff0c\u904b\u884c\u5f88\u5feb\u3002\u901a\u5e38\uff0c\u5728\u5b8c\u6210\u67e5\u8a62\u8d77\u59cb\u5316\u5f8c\uff0c\u4e0d\u5b58\u5728\u5b58\u5132\u5668\u914d\u7f6e\u3002<\/font><\/p>\n<p><font size=\"2\">o\u63a1\u7528Purify\uff08\u5546\u696d\u8a18\u61b6\u9ad4\u6ea2\u51fa\u6aa2\u9a57\u5668\uff09\u4ee5\u53caGPL\u5de5\u5177Valgrind\uff08<\/font><a href=\"http:\/\/developer.kde.org\/~sewardj\/\"><font size=\"2\">http:\/\/developer.kde.org\/~sewardj\/<\/font><\/a><font size=\"2\">\uff09\u6e2c\u8a66\u4e86MySQL\u4ee3\u78bc\u3002<\/font><\/p>\n<p><font size=\"2\">o\u4f3a\u670d\u5668\u53ef\u4f5c\u70ba\u55ae\u7368\u7a0b\u5f0f\u904b\u884c\u5728\u7528\u6236\u7aef\/\u4f3a\u670d\u5668\u806f\u7db2\u74b0\u5883\u4e0b\u3002\u5b83\u4e5f\u53ef\u4f5c\u70ba\u5eab\u63d0\u4f9b\uff0c\u53ef\u5167\u5d4c\uff08\u9023\u7d50\uff09\u5230\u7368\u7acb\u7684\u5957\u7528\u7a0b\u5f0f\u4e2d\u3002\u9019\u985e\u5957\u7528\u7a0b\u5f0f\u53ef\u55ae\u7368\u4f7f\u7528\uff0c\u4e5f\u80fd\u5728\u7db2\u8def\u74b0\u5883\u4e0b\u4f7f\u7528\u3002<\/font><\/p>\n<p><font size=\"2\">\u5217\u985e\u578b <\/font><\/p>\n<p><font size=\"2\">\u773e\u591a\u5217\u985e\u578b\uff1a \u5e36\u7b26\u865f\/\u7121\u7b26\u865f\u6574\u6578\uff0c1\u30012\u30013\u30014\u30018\u4f4d\u5143\u7d44\u9577\uff0cFLOAT\uff0cDOUBLE\uff0cCHAR\uff0cVARCHAR\uff0cTEXT\uff0cBLOB\uff0cDATE\uff0cTIME\uff0cDATETIME\uff0cTIMESTAMP\uff0cYEAR\uff0cSET\uff0cENUM\uff0c\u4ee5\u53caOpenGIS\u7a7a\u9593\u985e\u578b\u3002<\/font><\/p>\n<p><font size=\"2\">\u5b9a\u9577\u548c\u53ef\u8b8a\u9577\u5ea6\u8a18\u9304\u3002<\/font><\/p>\n<p><font size=\"2\">\u8a9e\u53e5\u548c\u51fd\u6578<\/font><\/p>\n<p><font size=\"2\">\u5728SELECT\u548c\u67e5\u8a62\u7684WHERE\u5b50\u53e5\u4e2d\uff0c\u63d0\u4f9b\u5b8c\u6574\u7684\u52d5\u4f5c\u7b26\u548c\u51fd\u6578\u652f\u63f4\u3002\u4f8b\u5982\uff1a<\/font><\/p>\n<p><font size=\"2\">mysql&gt; SELECT CONCAT(first_name, &#39; &#39;, last_name)<br \/> &nbsp;&nbsp;&nbsp; -&gt; FROM citizen<br \/> &nbsp;&nbsp;&nbsp; -&gt; WHERE income\/dependents &gt; 10000 AND age &gt; 30;<\/font><\/p>\n<p><font size=\"2\">\u5c0dSQL GROUP BY\u548cORDER BY\u5b50\u53e5\u7684\u5168\u9762\u652f\u63f4\u3002\u652f\u63f4\u805a\u5408\u51fd\u6578(COUNT(), COUNT(DISTINCT &#8230;)\uff0cAVG()\uff0cSTD()\uff0cSUM()\uff0cMAX()\uff0cMIN()\u548cGROUP_CONCAT())\u3002<\/font><\/p>\n<p><font size=\"2\">\u652f\u63f4LEFT OUTER JOIN\u548cRIGHT OUTER JOIN\uff0c\u63a1\u7528\u6a19\u6e96\u7684SQL\u548cODBC\u8a9e\u6cd5\u3002<\/font><\/p>\n<p><font size=\"2\">\u6309\u7167\u6a19\u6e96SQL\u7684\u8981\u6c42\uff0c\u652f\u63f4\u8868\u5225\u540d\u548c\u5217\u5225\u540d\u3002<\/font><\/p>\n<p><font size=\"2\">DELETE\u3001INSERT\u3001REPLACE\u548cUPDATE\u8fd4\u56de\u8b8a\u66f4\uff08\u5f71\u97ff\uff09\u7684\u884c\u6578\u3002\u9023\u7dda\u5230\u4f3a\u670d\u5668\u6642\uff0c\u53ef\u901a\u904e\u8a2d\u5b9a\u6a19\u8a8c\u8fd4\u56de\u7b26\u5408\u7684\u884c\u6578\u3002<\/font><\/p>\n<p><font size=\"2\">MySQL\u7684SHOW\u6307\u4ee4\u53ef\u7528\u65bc\u6aa2\u7d22\u95dc\u65bc\u8cc7\u6599\u5eab\u3001\u8cc7\u6599\u5eab\u5f15\u64ce\u3001\u8868\u548c\u7d22\u5f15\u7684\u5167\u5bb9\u3002EXPLAIN\u6307\u4ee4\u53ef\u7528\u65bc\u78ba\u5b9a\u6539\u5584\u5668\u8655\u7406\u67e5\u8a62\u7684\u6a21\u5f0f\u3002<\/font><\/p>\n<p><font size=\"2\">\u51fd\u6578\u540d\u8207\u8868\u540d\u6216\u5217\u540d\u4e0d\u885d\u7a81\u3002\u4f8b\u5982\uff0cABS\u662f\u6709\u6548\u7684\u5217\u540d\u3002\u552f\u4e00\u7684\u9650\u5236\u5728\u65bc\uff0c\u547c\u53eb\u51fd\u6578\u6642\uff0c\u51fd\u6578\u540d\u548c\u96a8\u5f8c\u7684\u7b26\u865f\u300c(\u300d\u4e4b\u9593\u4e0d\u5f97\u6709\u7a7a\u683c\u3002 <\/font><\/p>\n<p><font size=\"2\">\u53ef\u4ee5\u5c07\u4e0d\u540c\u8cc7\u6599\u5eab\u7684\u8868\u6df7\u5408\u5728\u76f8\u540c\u7684\u67e5\u8a62\u4e2d\uff08\u5c31\u50cfMySQL 3.22\u4e2d\u90a3\u6a23\uff09\u3002<\/font><\/p>\n<p><font size=\"2\">\u5b89\u5168<\/font><\/p>\n<p><font size=\"2\">\u5341\u5206\u9748\u6d3b\u548c\u5b89\u5168\u7684\u6b0a\u9650\u548c\u5bc6\u78bc\u7cfb\u7d71\uff0c\u5bb9\u8a31\u57fa\u65bc\u4e3b\u96fb\u8166\u7684\u9a57\u8b49\u3002\u9023\u7dda\u5230\u4f3a\u670d\u5668\u6642\uff0c\u6240\u6709\u7684\u5bc6\u78bc\u50b3\u8f38\u5747\u63a1\u7528\u52a0\u5bc6\u5f62\u5f0f\uff0c\u5f9e\u800c\u4fdd\u8b49\u4e86\u5bc6\u78bc\u5b89\u5168\u3002 <\/font><\/p>\n<p><font size=\"2\">\u53ef\u4f38\u7e2e\u6027\u548c\u9650\u5236 <\/font><\/p>\n<p><font size=\"2\">\u8655\u7406\u5927\u578b\u8cc7\u6599\u5eab\uff1a \u6211\u5011\u4f7f\u7528\u4e86MySQL\u4f3a\u670d\u5668\u548c\u542b5\u5343\u842c\u689d\u8a18\u9304\u7684\u8cc7\u6599\u5eab\u3002\u6211\u5011\u9084\u807d\u8aaa\uff0c\u6709\u4e9b\u6703\u54e1\u5c07MySQL\u7528\u65bc\u542b60000\u500b\u8868\u548c\u7d0450\u5104\u884c\u7684\u8cc7\u6599\u5eab\u3002 <\/font><\/p>\n<p><font size=\"2\">\u6bcf\u500b\u8868\u53ef\u652f\u63f4\u9ad8\u905464\u689d\u7d22\u5f15\uff08\u5728MySQL 4.1.2\u4e4b\u524d\u70ba32\u689d\uff09\u3002\u6bcf\u689d\u7d22\u5f15\u53ef\u75311\uff5e16\u500b\u5217\u6216\u5217\u5143\u7d20\u7d44\u6210\u3002\u6700\u5927\u7d22\u5f15\u5bec\u5ea6\u70ba1000\u4f4d\u5143\u7d44\uff08\u5728MySQL 4.1.2\u4e4b\u524d\u70ba500\uff09\u3002\u7d22\u5f15\u53ef\u4f7f\u7528\u5177\u5099CHAR\u3001VARCHAR\u3001BLOB\u6216TEXT\u5217\u985e\u578b\u7684\u5217\u524d\u7db4\u3002<\/font><\/p>\n<p><font size=\"2\">\u9023\u7dda\u6027<\/font><\/p>\n<p><font size=\"2\">\u5728\u4efb\u4f55\u5e73\u53f0\u4e0a\uff0c\u7528\u6236\u7aef\u53ef\u4f7f\u7528TCP\/IP\u5354\u5b9a\u9023\u7dda\u5230MySQL\u4f3a\u670d\u5668\u3002\u5728Windows\u7cfb\u7d71\u7684NT\u7cfb\u5217\u4e2d\uff08NT\u30012000\u3001XP\u62162003\uff09\uff0c\u7528\u6236\u7aef\u53ef\u4f7f\u7528\u547d\u540d\u7ba1\u9053\u9032\u884c\u9023\u7dda\u3002\u5728Unix\u7cfb\u7d71\u4e2d\uff0c\u7528\u6236\u7aef\u53ef\u4f7f\u7528Unix\u529f\u80fd\u8b8a\u6578\u5957\u63a5\u5b57\u6a94\u6848\u5efa\u7acb\u9023\u7dda\u3002<\/font><\/p>\n<p><font 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