{"id":1570,"date":"2017-09-21T18:43:45","date_gmt":"2017-09-21T10:43:45","guid":{"rendered":"http:\/\/coderbee.net\/?p=1570"},"modified":"2017-09-21T18:45:18","modified_gmt":"2017-09-21T10:45:18","slug":"%e4%b8%80%e6%ac%a1%e7%bb%93%e5%90%88%e4%b8%9a%e5%8a%a1%e3%80%81%e6%8a%80%e6%9c%af%e7%bb%bc%e5%90%88%e8%bf%9b%e8%a1%8c%e7%9a%84-sql-%e4%bc%98%e5%8c%96%e8%bf%87%e7%a8%8b","status":"publish","type":"post","link":"https:\/\/coderbee.net\/index.php\/db\/20170921\/1570","title":{"rendered":"\u4e00\u6b21\u7ed3\u5408\u4e1a\u52a1\u3001\u6280\u672f\u7efc\u5408\u8fdb\u884c\u7684 SQL \u4f18\u5316\u8fc7\u7a0b"},"content":{"rendered":"<h1>\u4e00\u3001\u95ee\u9898 sql<\/h1>\n<p>\u6700\u8fd1\u6709\u4e2a\u67e5\u8be2\u9875\u9762\u7279\u522b\u6162\uff0c\u8fd9\u4e2a\u9875\u9762\u6709 12 \u4e2a\u8f93\u5165\u6846\uff0c\u4f46\u90fd\u662f\u53ef\u9009\u7684\uff0c\u9ed8\u8ba4\u662f\u6ca1\u6709\u8f93\u5165\u503c\u7684\u3002<\/p>\n<p>\u4e0b\u9762\u662f\u8fd9\u4e2a\u641c\u7d22\u7684\u539f\u59cb SQL \u8bed\u53e5\uff0c\u5199\u5728 MyBatis \u7684 XML \u6587\u4ef6\u91cc\u7684\uff0c\u901a\u8fc7 <code>if<\/code> \u8bed\u53e5\u5728\u76f8\u5e94\u7684\u641c\u7d22\u53c2\u6570\u4e0d\u4e3a\u7a7a\u65f6\u62fc\u63a5\u5bf9\u5e94\u7684\u8fc7\u6ee4\u6761\u4ef6\u3002<\/p>\n<p>\u5728<strong>\u6700\u60b2\u89c2<\/strong>\u8f93\u5165\u7684\u60c5\u51b5\u4e0b\uff0cSQL \u7b49\u4ef7\u4e8e\u4e0b\u9762\u7684\u7b80\u5316\u7248\uff1a<\/p>\n<pre><code class=\"sql\">SELECT *\n  FROM (SELECT A.*, ROWNUM RN\n          FROM (select C.*\n                  from (select distinct AI.SerialNo as aiSerialNo,\n                                        AI.inputDate,\n                                        FD.phaseName,\n                                        getItemName('BusinessStatus',\n                                                    AI.ApplyStatus) as applyStatus,\n                                        getBusinessName(AI.BusinessType) as businessType,\n                                        getItemName('LType', AI.LOANTYPE) as lType,\n                                        getSellerName(AI.OperateUserID) as opUname,\n                                        getusername(AI.Interviewerid) as iName,\n                                        getorgname(AI.OperateOrgID) as opOrgName,\n                                        bi.Serialno,\n                                        substr(ai.properties, 9, 1) as a2\n                          FROM t_ai AI\n                          LEFT JOIN t_ci CI\n                            ON AI.SERIALNO = CI.APPLYSERIALNO\n                           and CI.PUTOUTTYPE in ('010', '030')\n                          LEFT JOIN t_bi BI\n                            ON BI.CONTRACTSERIALNO = CI.SERIALNO\n                          LEFT JOIN t_tj tj\n                            on tj.loanno = BI.serialno, t_fd FD, t_pc PC, t_pw pw\n                         WHERE AI.SERIALNO = FD.OBJECTNO\n                           AND AI.SERIALNO = PC.OBJECTNO\n                           and AI.SERIALNO = PW.OBJECTNO\n                           and (AI.applystatus in ('103', '104') and\n                               FD.endtime is not null and\n                               fd.serialno =\n                               (select max(t.serialno)\n                                   from t_fd t\n                                  where t.objectno = ai.serialno) or\n                               (AI.applystatus not in ('103', '104') and\n                               FD.endtime is null))\n                           and AI.OPERATEORGID in\n                               (SELECT t_b_org.BELONGORGID\n                                  FROM t_b_org t_b_org\n                                 WHERE t_b_org.ORGID IN\n                                       (SELECT ORGID\n                                          FROM t_org\n                                         WHERE SALESUPER = :3))\n                        ) C\n                 order by C.inputDate, C.aiSerialNo) A\n         WHERE ROWNUM &lt; :1)\n WHERE RN &gt;= :2\n<\/code><\/pre>\n<p>\u8fd9\u4e2a SQL \u7684\u6267\u884c\u8ba1\u5212\u603b\u7684 cost \u503c\u4e3a <code>13902<\/code> \u3002\u5927\u8868\u90fd\u662f\u5168\u8868\u626b\u63cf\u3002<\/p>\n<h1>\u4e8c\u3001\u4f18\u5316\u8fc7\u7a0b<\/h1>\n<h2>1. \u68c0\u67e5\u8868\u7684\u5173\u8054<\/h2>\n<p>\u628a sql \u8bed\u53e5\u62f7\u8d1d\u5230 notepad++\uff0c\u53cc\u51fb\u8868\u7684\u522b\u540d\uff0c\u4f1a\u7528\u7eff\u8272\u9ad8\u4eae\u663e\u793a\u3002<\/p>\n<ul>\n<li>\n<p>\u53d1\u73b0 tj \u8fd9\u4e2a\u8868\u65e2\u6ca1\u6709\u7528\u4e8e <code>where<\/code> \u5b50\u53e5\u8fdb\u884c\u8fc7\u6ee4\uff0c\u4e5f\u4e0d\u5728 <code>select<\/code> \u5b50\u53e5\u91cc\u3002 \u7ed3\u5408 <code>select distinct<\/code>, \u53ef\u4ee5\u786e\u5b9a <code>left join<\/code> \u8fd9\u4e2a\u8868\u5bf9\u6700\u7ec8\u7ed3\u679c\u96c6\u662f\u6ca1\u6709\u4efb\u4f55\u5f71\u54cd\u7684\u3002\u53ef\u4ee5\u5b89\u5168\u5730\u79fb\u9664\u5bf9\u8fd9\u4e2a\u8868\u7684\u5173\u8054\u3002<\/p>\n<\/li>\n<li>\n<p>\u53d1\u73b0 pc\u3001pw \u8fd9\u4e24\u4e2a\u8868\u90fd\u4e0e ai \u8868\u5173\u8054\uff0c\u4e14\u4e0e ai \u662f\u4e00\u5bf9\u4e00\u7684\u5173\u7cfb\u3002\u4f46\u5b83\u4eec\u5e76\u6ca1\u6709\u51fa\u73b0\u5728 <code>select<\/code> \u5b50\u53e5\uff0c\u5728 <code>where<\/code> \u5b50\u53e5\u4e5f\u53ea\u662f\u5728\u76f8\u5e94\u7684\u53c2\u6570\u51fa\u73b0\u65f6\u624d\u62fc\u63a5\u8fc7\u6ee4\u8bed\u53e5\u3002\u4e5f\u5c31\u662f\uff1a\u5982\u679c\u8fc7\u6ee4\u6761\u4ef6\u51fa\u73b0\uff0c\u90a3\u4e48\u5173\u8054\u8fd9\u4e2a\u8868\u662f\u80fd\u8fc7\u6ee4\u6570\u636e\u7684\uff0c\u5982\u679c\u8fc7\u6ee4\u6761\u4ef6\u4e0d\u51fa\u73b0\uff0c\u5173\u8054\u4e0d\u5173\u8054\u8fd9\u4e2a\u8868\u7684\u7ed3\u679c\u90fd\u662f\u4e00\u6837\u7684\u3002\u65e2\u7136\u8fd9\u6837\uff0c\u5c31\u53ef\u4ee5\u5229\u7528 MyBatis \u7684 <code>if<\/code> \u6761\u4ef6\u6027\u5730\u5173\u8054\u8fd9\u4e2a\u8868\u3002\u5982\u4e0b\uff1a<\/p>\n<\/li>\n<\/ul>\n<pre><code class=\"xml\">&lt;if test=\"mobilePhone != null and mobilePhone != ''.toString() or familyTel != null and familyTel != ''.toString()\"&gt;\n    join t_pc PC on AI.SERIALNO = PC.OBJECTNO\n    &lt;if test=\"mobilePhone != null and mobilePhone != ''.toString()\"&gt;\n      and (PC.MOBILETELEPHONE = #{mobilePhone , jdbcType=VARCHAR} or PC.MOBILETELEPHONE2 = #{mobilePhone , jdbcType=VARCHAR})\n    &lt;\/if&gt;\n    &lt;if test=\"familyTel != null and familyTel != ''.toString()\"&gt;\n      and PC.FAMILYTEL = #{familyTel , jdbcType=VARCHAR}\n    &lt;\/if&gt;\n&lt;\/if&gt;\n<\/code><\/pre>\n<p><!--more--><\/p>\n<h2>2. select \u5b50\u53e5\u4f18\u5316<\/h2>\n<p>\u4ece\u6700\u5185\u5c42\u7684 select \u5b50\u53e5\u53ef\u4ee5\u770b\u5230\uff0c\u6709 6 \u4e2a\u81ea\u5b9a\u4e49\u51fd\u6570\u7684\u8c03\u7528\u3002\u8fd9\u4e9b\u81ea\u5b9a\u4e49\u51fd\u6570\u7684\u5b9e\u73b0\u90fd\u662f\u4e00\u4e2a sql \u67e5\u8be2\uff0c\u867d\u7136\u67e5\u8be2\u7684\u76ee\u6807\u8868\u90fd\u5f88\u5c0f\u3002<\/p>\n<p>\u4f46\u662f\u8fd9\u4e2a\u5185\u5c42\u67e5\u8be2\u4f1a\u751f\u6210\u7ea6 1w \u6761\u8bb0\u5f55\uff0c\u7136\u540e\u5728\u5916\u5c42\u8fdb\u884c\u6392\u5e8f\u3001\u5206\u9875\uff0c\u6700\u7ec8\u53ea\u53d6 10 \u6761\u8bb0\u5f55\u8fd4\u56de\u7ed9\u9875\u9762\u5c55\u793a\u3002<\/p>\n<p>\u8fd9 1w \u6761\u8bb0\u5f55\u5c31\u4f1a\u6709 6w \u6b21\u5f88\u5c0f\u7684\u67e5\u8be2\uff0c\u800c\u8fd9\u4e9b\u67e5\u8be2\u57fa\u672c\u662f\u767d\u8d39\u7684\uff0c\u56e0\u4e3a\u6700\u7ec8\u5176\u5b9e\u53ea\u9700 60 \u6b21\u5c31\u597d\u3002\u6240\u4ee5\u628a\u8fd9\u4e9b\u51fd\u6570\u8c03\u7528\u90fd\u653e\u5230\u6700\u7ec8\u7ed3\u679c\u751f\u6210\u4e4b\u540e\u624d\u8fdb\u884c\u3002<\/p>\n<h2>3. \u4ece\u4e1a\u52a1\u4e0a\u4f18\u5316<\/h2>\n<p>\u4e0a\u8ff0\u7684\u4f18\u5316\u505a\u4e86\u540e\uff0c\u6700\u5dee\u60c5\u51b5\u4e0b\u7684\u6267\u884c\u8ba1\u5212\u7684 cost \u662f 12360\uff0c\u4ecd\u7136\u592a\u5927\u4e86\u3002<\/p>\n<p>\u6ce8\u610f\u5230 bi \u8868\u53ea\u5728 <code>select<\/code> \u5b50\u53e5\u4e2d\u4f7f\u7528\uff0c ci \u8868\u53ea\u662f\u7528\u6765\u5173\u8054\u8d77 ai \u548c bi \u8868\u7684\u3002bi\u3001ci \u90fd\u662f\u5168\u8868\u626b\u63cf\uff0c\u5982\u679c\u653e\u5230\u6700\u5916\u5c42\u8fdb\u884c\u5173\u8054\uff0c\u53ea\u6709 10 \u6761\u8bb0\u5f55\uff0c\u5b8c\u5168\u53ef\u4ee5\u8d70\u7d22\u5f15\u3002\u4f46\u662f\u4e1a\u52a1\u4e0a\u4e0d\u5141\u8bb8\uff0c\u56e0\u4e3a ai \u4e0e ci \u662f\u4e00\u5bf9\u591a\u7684\u5173\u7cfb\uff0cci \u4e0e bi \u662f\u4e00\u5bf9\u4e00\u7684\u5173\u7cfb\u3002<\/p>\n<p>\u8fd9\u662f\u9886\u5bfc\u53d1\u73b0\u4ece bi \u8868\u67e5\u8be2\u51fa\u6765\u7684\u5b57\u6bb5\u5bf9\u4e8e\u8fd9\u4e2a\u641c\u7d22\u7ed3\u679c\u662f\u6ca1\u5fc5\u8981\u7684\uff0c\u7528\u6237\u5e94\u8be5\u5728\u5176\u4ed6\u529f\u80fd\u53bb\u67e5\u770b\u8fd9\u4e9b\u5b57\u6bb5\uff0c\u8ddf\u4e1a\u52a1\u6c9f\u901a\u540e\u51b3\u5b9a\u628a\u8fd9\u4e9b\u5b57\u6bb5\u53bb\u6389\u3002\u8fd9\u6837\u5c31\u4e0d\u9700\u8981\u5173\u8054  ci\u3001bi \u8868\u4e86\uff0c\u6267\u884c\u8ba1\u5212\u7684 cost \u964d\u5230\u4e86 10130\u3002<\/p>\n<h2>4 \u4ece\u6570\u636e\u7279\u6027\u53d1\u73b0\u4f18\u5316\u70b9<\/h2>\n<h3>4.1 \u5229\u7528\u6570\u636e\u7279\u70b9\u7b80\u5316\u5173\u8054<\/h3>\n<p>\u73b0\u5728\u5269\u4e0b\u7684\u5f00\u9500\u4e3b\u8981\u662f ai \u8868\u548c fd \u8868\u5173\u8054\u5f15\u8d77\u7684\u5168\u8868\u626b\u63cf\u3002\u6839\u636e\u6570\u636e\u7684\u7279\u6027\uff0cai \u4e0e fd \u662f\u4e00\u5bf9\u591a\u7684\u5173\u7cfb\uff0cai \u7684\u8bb0\u5f55\u5728 fd \u91cc\u81f3\u5c11\u6709\u4e00\u6761\u8bb0\u5f55\u3002<\/p>\n<p>fd \u51fa\u73b0\u5728 <code>where<\/code> \u5b50\u53e5\u7684\u4e24\u4e2a\u5730\u65b9\uff1a<\/p>\n<pre><code class=\"xml\">&lt;if test=\"phaseNo != null and phaseNo != ''.toString()\"&gt;\n  and FD.PHASENO = #{phaseNo , jdbcType=VARCHAR}\n&lt;\/if&gt;\n<\/code><\/pre>\n<p>\u548c<\/p>\n<pre><code class=\"sql\">and (AI.applystatus in ('103', '104') and\n   FD.endtime is not null and\n   fd.serialno =\n   (select max(t.serialno)\n       from t_fd t\n      where t.objectno = ai.serialno) or\n   (AI.applystatus not in ('103', '104') and\n   FD.endtime is null))\n<\/code><\/pre>\n<p>\u524d\u9762\u90a3\u4e2a\u662f\u6839\u636e\u7528\u6237\u7684\u8f93\u5165\u51b3\u5b9a\u7684\u8fc7\u6ee4\u6761\u4ef6\uff0c\u5bf9\u5206\u9875\u6709\u5f71\u54cd\u3002\u540e\u9762\u90a3\u4e2a\u662f\u53d6 fd \u91cc\u5173\u8054\u7684\u6700\u65b0\u7684\u90a3\u6761\u8bb0\u5f55\uff0c\u53ea\u53d6\u4e00\u6761\uff0c\u5bf9\u5206\u9875\u6ca1\u5f71\u54cd\uff0c\u5b8c\u5168\u53ef\u4ee5\u653e\u5230\u5206\u9875\u540e\u518d\u5173\u8054\u3002<\/p>\n<p>\u5047\u5b9a\u7528\u6237\u6ca1\u6709\u8f93\u5165 phaseNo \u641c\u7d22\u53c2\u6570\uff0c\u6211\u4eec\u5c31\u4e0d\u9700\u8981\u5728\u6700\u5185\u5c42\u5173\u8054 fd \u8868\uff0c\u8fd9\u6837\uff0c\u6267\u884c\u8ba1\u5212\u7684\u5f00\u9500\u53ef\u4ee5\u964d\u5230 2094 \u3002\u4e0d\u8fc7\u8fd9\u4e2a\u8981\u5b9e\u65bd\u7684\u8bdd\uff0c\u5f97\u5199\u6210\u4e24\u4e2a\u67e5\u8be2\uff0c\u6839\u636e phaseNo \u53c2\u6570\u662f\u5426\u6709\u503c\u6765\u5206\u522b\u8c03\u7528\uff0c\u590d\u6742\u4e86\u70b9\u3002<\/p>\n<h3>4.2 \u5229\u7528\u6570\u636e\u4e0d\u5747\u8861\u5206\u5e03\u7279\u6027<\/h3>\n<p>ai \u8868\u7684 <code>applystatus<\/code> \u5b57\u6bb5\u8868\u793a\u8bb0\u5f55\u7684\u72b6\u6001\uff0c\u53d6\u503c\u6709\uff1a\u7533\u8bf7\u4e2d\u3001\u901a\u8fc7\u3001\u5426\u51b3\uff0c\u8fd8\u6709\u51e0\u4e2a\u5176\u4ed6\u7684\u72b6\u6001\uff0c\u7533\u8bf7\u4e2d \u548c \u5176\u4ed6\u7684\u4e2d\u95f4\u72b6\u6001\u5360\u4e86\u53ea\u5360\u4e86\u603b\u91cf\u7684\u5f88\u5c0f\u4e00\u90e8\u5206\u3002<\/p>\n<p>\u8be5\u5b57\u6bb5\u4e0a\u5efa\u4e86\u6709\u7d22\u5f15\u3002\u4f46\u662f\u5bf9\u4e8e \u901a\u8fc7\u3001\u5426\u51b3 \u8fd9\u79cd\u5360\u4e86\u5927\u90e8\u5206\u7684\uff0cOracle \u662f\u4e0d\u4f1a\u8d70\u7d22\u5f15\uff0c\u4f46\u662f\u5bf9\u4e8e \u7533\u8bf7\u4e2d \u8fd9\u79cd\u53ea\u5360\u6781\u5c11\u6570\u7684\u662f\u4f1a\u8d70\u7d22\u5f15\u7684\u3002<\/p>\n<p>\u53ef\u4ee5\u628a\u8fd9\u79cd\u5360\u6781\u5c11\u6570\u7684\u72b6\u6001\u7ec4\u5408\u4f5c\u4e3a\u641c\u7d22\u9875\u9762\u7684\u4e00\u4e2a\u4e0b\u62c9\u9009\u9879\uff0c\u9ed8\u8ba4\u9009\u4e2d\uff1b\u901a\u8fc7\u3001\u5426\u51b3 \u4f5c\u4e3a\u53e6\u5916\u7684\u9009\u9879\u3002<\/p>\n<h2>5. \u5229\u7528\u7ec4\u5408\u7d22\u5f15<\/h2>\n<p>\u5148\u4e0d\u7ba1 4.2 \u7528\u6237\u4e0d\u8f93\u5165 phaseNo \u60c5\u51b5\u4e0b\u7684\u4f18\u5316\uff0c\u7ee7\u7eed\u4e13\u6ce8\u6700\u5dee\u60c5\u51b5\u4e0b\u7684\uff0c\u6bd5\u7adf\u6211\u4eec\u671f\u671b \u5e94\u7528\u5728\u6240\u6709\u8f93\u5165\u4e0b\u90fd\u6709\u826f\u597d\u7684\u6027\u80fd\u3002<\/p>\n<p>\u4e1a\u52a1\u6700\u8fd1\u53cd\u9988\u9700\u8981\u6309\u5929\u67e5\u770b\u6307\u5b9a\u65e5\u671f\u7684\u6240\u6709 ai \u8bb0\u5f55\uff0c\u7136\u540e\u641c\u7d22\u9875\u9762\u589e\u52a0\u4e86\u8d77\u59cb\u65e5\u671f\u3001\u7ed3\u675f\u65e5\u671f\u4e24\u4e2a\u8f93\u5165\u6846\u3002<\/p>\n<p>ai \u91cc\u7684\u8bb0\u5f55\u4ece\u5f55\u5165\u5230\u8fdb\u5165\u6700\u7ec8\u72b6\u6001\u53ea\u9700\u8981 N \u5929\uff0c\u6240\u4ee5\uff0c\u5982\u679c\u6211\u4eec<strong>\u9ed8\u8ba4<\/strong>\u5c55\u793a\u6700\u8fd1 N \u5929\u7684\u8bb0\u5f55\uff0c\u5176\u5b9e\u662f\u53ef\u4ee5\u6ee1\u8db3\u7edd\u5927\u591a\u6570\u7528\u6237\u7684\u9700\u6c42\uff0c\u5982\u679c\u7528\u6237\u9700\u8981\u67e5\u770b\u66f4\u65e9\u4e4b\u524d\u7684\u8bb0\u5f55\uff0c\u4e5f\u53ef\u4ee5\u624b\u5de5\u9009\u62e9\u65e5\u671f\u3002<\/p>\n<p>\u6240\u4ee5\u6211\u4eec\u53ef\u4ee5\u5efa\u7acb\u4e00\u4e2a\u7ec4\u5408\u7d22\u5f15<code>(applystatus, inputDate)<\/code> \u66ff\u4ee3 <code>applystatus<\/code> \u4e0a\u7684\u5355\u5217\u7d22\u5f15\uff0c\u6267\u884c\u8ba1\u5212\u91cc\u7684 cost \u53ef\u4ee5\u964d\u5230 1082 \u5de6\u53f3\u3002<\/p>\n<blockquote>\n<p>\u4e4b\u6240\u4ee5\u628a <code>applystatus<\/code> \u653e\u5728\u7ec4\u5408\u7d22\u5f15\u7684\u524d\u9762\uff0c\u662f\u56e0\u4e3a\u4ee5\u524d\u7684\u67e5\u8be2\u4e00\u822c\u53ea\u6307\u5b9a\u4e86 <code>applystatus<\/code> \u6ca1\u6709\u6307\u5b9a <code>inputDate<\/code>\uff1b\u4e8c\u662f\u5728\u53ea\u6307\u5b9a\u4e86 <code>inputDate<\/code>\uff0c\u6ca1\u6709 <code>applystatus<\/code> \u4e5f\u53ef\u4ee5\u8fdb\u884c\u7d22\u5f15\u8df3\u8dc3\u626b\u63cf\u3002<\/p>\n<\/blockquote>\n<p>\u6b64\u65f6\u7684\u6267\u884c\u8ba1\u5212\u662f\u5bf9 ai \u8868\u73b0\u901a\u8fc7\u4e0a\u9762\u7684\u7ec4\u5408\u7d22\u5f15\u8fdb\u884c\u626b\u63cf\uff0c\u5bf9 fd \u8868\u662f\u5d4c\u5957\u5faa\u73af\uff0c\u4e5f\u662f\u8d70\u4e86 <code>objectno<\/code> \u8ddf <code>objectType<\/code> \u7ec4\u5408\u7d22\u5f15\uff0c\u4f46\u662f\u603b\u4f53\u5f00\u9500\u8fd8\u662f\u5f88\u9ad8\u3002\u3002\u3002<\/p>\n<h2>6. \u5229\u7528\u7d22\u5f15\u8fc7\u6ee4\u51cf\u5c11\u56de\u8868<\/h2>\n<p>\u5728 fd \u8868\u4e0a\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u7ec4\u5408\u7d22\u5f15 <code>(objectno, phaseno)<\/code>\uff0c\u7136\u540e cost \u964d\u5230 362\uff0c\u4e3a\u5565\uff1f  \u90fd\u662f\u7ec4\u5408\u7d22\u5f15\uff0c\u5217\u4e0d\u540c\uff0c\u6548\u679c\u4e5f\u5f88\u4e0d\u540c\u3002<\/p>\n<p>\u8fd9\u662f\u56e0\u4e3a where \u5b50\u53e5\u7684 <code>and fd.phaseno = #{phaseNo}<\/code> \u53ef\u4ee5\u901a\u8fc7\u7d22\u5f15\u91cc\u7684\u6570\u636e\u8fdb\u884c\u8fc7\u6ee4\uff0c\u6ee1\u8db3\u6761\u4ef6\u7684\u624d\u56de\u8868\u67e5\u8be2\u6570\u636e\uff0c\u8fdb\u884c\u8fdb\u4e00\u6b65\u8fc7\u6ee4\uff1b\u5bf9\u4e8e (<code>objectno<\/code>, <code>objectType<\/code>) \u7ec4\u5408\u7d22\u5f15\uff0c\u6bcf\u4e00\u6761\u8bb0\u5f55\u90fd\u5fc5\u987b\u56de\u8868\uff0c\u81ea\u7136\u66f4\u5dee\u4e9b\u3002<\/p>\n<h2>7. \u5982\u4f55\u8fbe\u5230\u6700\u4f18<\/h2>\n<p>\u7ed3\u5408\u4e0a\u9762\u7684\u4f18\u5316\u8fc7\u7a0b\uff0c\u4e3a\u4e86\u8fbe\u5230\u6700\u4f18\u7684\u6548\u679c\uff0c\u5fc5\u987b\u533a\u5206\u662f\u5426\u8f93\u5165\u4e86 <code>phaseNo<\/code> \u67e5\u8be2\u6761\u4ef6\uff1a<\/p>\n<blockquote>\n<ol>\n<li>\u5982\u679c\u6ca1\u6709\u8f93\u5165\uff0c\u5219\u4e0d\u5728\u5185\u5b58\u7684\u4e3b\u67e5\u8be2\u91cc\u5173\u8054 fd \u8868\uff0c\u5728\u5206\u9875\u540e\u7684\u6700\u7ec8\u7ed3\u679c\u51fa\u6765\u540e\u624d\u5173\u8054\uff0ccost \u5728 100 \u4ee5\u4e0b\u3002<\/li>\n<li>\u5728\u6709\u8f93\u5165\u7684\u60c5\u51b5\u4e0b\uff0c\u901a\u8fc7\u65b0\u5efa\u7684\u7ec4\u5408\u7d22\u5f15 <code>(objectno, phaseno)<\/code> \u51cf\u5c11\u56de\u8868\uff0ccost \u4e3a 362 \u5de6\u53f3\u3002<\/li>\n<\/ol>\n<\/blockquote>\n<h1>\u4e09\u3001\u5c0f\u7ed3<\/h1>\n<p>\u603b\u7ed3\u4e0b\u4e0a\u9762\u7528\u5230\u7684\u4f18\u5316\u6280\u672f\uff1a<br \/>\n1. \u51cf\u5c11\u4e0d\u5fc5\u8981\u7684\u8868\u5173\u8054\uff0c\u5982\u679c\u53ef\u4ee5\uff0c\u53ea\u5bf9\u6700\u7ec8\u6570\u636e\u8fdb\u884c\u5173\u8054\u3002<br \/>\n2. \u51cf\u5c11 select \u5b50\u53e5\u4e0d\u5fc5\u8981\u7684\u5b50\u67e5\u8be2\u6216\u51fd\u6570\u8c03\u7528\uff0c\u53ea\u5bf9\u6700\u7ec8\u6570\u636e\u8fdb\u884c\u5904\u7406\u3002<br \/>\n3. \u5229\u7528\u7d22\u5f15\u51cf\u5c11\u67e5\u8be2\u8303\u56f4\uff0c\u5229\u7528\u7d22\u5f15\u8fc7\u6ee4\u51cf\u5c11\u56de\u8868\u64cd\u4f5c\u3002<br \/>\n4. \u8ba4\u771f\u7814\u7a76\u6240\u67e5\u8be2\u6570\u636e\u5206\u5e03\u7684\u7279\u70b9\u3002<br \/>\n5. \u7814\u7a76 <code>inner join \/ left jion<\/code> \u5bf9\u7ed3\u679c\u96c6\u7684\u5f71\u54cd\u3002<br \/>\n6. \u91cd\u89c6\u4ece\u4e1a\u52a1\u89d2\u5ea6\u8fdb\u884c\u4f18\u5316\uff0c\u8981\u5206\u6790\u90a3\u4e9b\u6570\u636e\u3001\u64cd\u4f5c\u5bf9\u7528\u6237\u662f\u5426\u662f\u5fc5\u987b\u7684\uff0c\u8fd8\u662f\u53ef\u9009\u7684\u3002<br \/>\n7. \u4f18\u5316\u5fc5\u987b\u8003\u8651\u5728\u6700\u60b2\u89c2\u7684\u60c5\u51b5\u4e0b\u7684\u6027\u80fd\uff0c\u8fd9\u6837\u53ef\u4ee5\u4fdd\u8bc1\u5728\u6240\u6709\u60c5\u51b5\u4e0b\u90fd\u6709\u53ef\u63a5\u53d7\u7684\u6027\u80fd\u3002<\/p>\n<hr\/>\n<p>\u6b22\u8fce\u5173\u6ce8\u6211\u7684\u5fae\u4fe1\u516c\u4f17\u53f7: <strong>coderbee\u7b14\u8bb0<\/strong>\uff0c\u53ef\u4ee5\u66f4\u53ca\u65f6\u56de\u590d\u4f60\u7684\u8ba8\u8bba\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"258\" height=\"258\" src=\"https:\/\/coderbee.net\/wp-content\/uploads\/2019\/01\/coderbee-note.jpg\" class=\"alignnone size-full wp-image-1707\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e00\u3001\u95ee\u9898 sql \u6700\u8fd1\u6709\u4e2a\u67e5\u8be2\u9875\u9762\u7279\u522b\u6162\uff0c\u8fd9\u4e2a\u9875\u9762\u6709 12 \u4e2a\u8f93\u5165\u6846\uff0c\u4f46\u90fd\u662f\u53ef\u9009 &hellip; <a href=\"https:\/\/coderbee.net\/index.php\/db\/20170921\/1570\">\u7ee7\u7eed\u9605\u8bfb <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[23],"tags":[289,290],"_links":{"self":[{"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/posts\/1570"}],"collection":[{"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/comments?post=1570"}],"version-history":[{"count":2,"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/posts\/1570\/revisions"}],"predecessor-version":[{"id":1572,"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/posts\/1570\/revisions\/1572"}],"wp:attachment":[{"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/media?parent=1570"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/categories?post=1570"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/tags?post=1570"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}