• 零基础入门IT行业
  • 专注每一位学员的成长
  • 职业道路走得坚实而长远

400-666-4820

JDBC强化班:企业级项目驱动+源码深度解析的进阶学习方案

JDBC强化班:企业级项目驱动+源码深度解析的进阶学习方案

授课机构: 沈阳叩丁狼教育

上课地点: 校区地址

成交/评价:

联系电话: 400-666-4820

JDBC强化班:企业级项目驱动+源码深度解析的进阶学习方案课程详情

课程设计的底层逻辑:从企业需求到能力培养

在IT开发领域,JDBC作为Java与数据库交互的核心技术,其掌握深度直接影响开发者的岗位竞争力。叩丁狼教育JDBC强化班的设计初衷,正是基于企业真实用人需求——既需要开发者能快速完成数据库操作,更要求其理解技术底层原理,具备应对复杂业务场景的能力。

课程采用「案例驱动+源码解析」双轨模式。所谓案例驱动,并非简单展示代码,而是将电商用户数据管理、金融交易记录存储等企业级项目拆解为具体任务,学员在完成「用户信息增删改」「订单数据统计」等实际需求中,逐步掌握数据库操作技巧。同时,每一个核心功能的实现,都会延伸至JDBC源码层面:为什么连接数据库需要DriverManager?PreparedStatement如何防止SQL注入?这些问题的解答,让学员从「会用工具」升级为「懂调优、能排障」的技术能手。

值得强调的是,课程特别设置「竞争力强化」模块。从企业招聘要求反推学习重点,例如针对「熟悉数据库优化」的岗位需求,课程会讲解索引设计原则、慢查询分析方法;针对「具备项目经验」的要求,安排大量企业级开发场景模拟,让学员在实战中积累可写入简历的技术成果。

教学内容体系:两日课程全流程拆解

JDBC强化班的教学周期紧凑但内容饱满,核心知识点通过两日集中学习完成,确保学员在短时间内建立系统的知识框架。以下为具体课时安排与重点说明:

天:数据库基础与核心操作入门

课时01「数据库概述」不仅讲解关系型数据库与非关系型数据库的区别,更结合企业实际场景分析:为何电商系统常用MySQL存储用户信息,而商品推荐系统可能用到Redis?帮助学员建立「技术选型需结合业务需求」的思维。

课时02「表的概念」突破传统理论教学,通过「设计学生管理系统数据表」的任务,引导学员思考字段类型选择(如年龄用TINYINT还是INT)、表结构合理性(是否需要拆分班级表与学生表)等实际问题。

课时03-04聚焦「MySQL安装与连接」,除了演示安装步骤,更强调生产环境与本地开发环境的配置差异:如何设置安全的root密码?Navicat客户端连接时遇到「2003错误」如何排查?这些细节直接对应企业开发中的常见问题。

课时05-08深入数据库与表操作,重点讲解存储引擎选择(InnoDB与MyISAM的适用场景)、列类型优化(日期用DATE还是DATETIME)、约束条件设置(主键、唯一约束如何数据完整性)。每部分内容均配套小练习,例如「为员工表添加外键关联部门表」,让学员在操作中巩固知识。

课时09-13围绕DML语句与查询操作展开。从基础的增删改语句,到比较运算符、逻辑运算符的组合使用,再到范围查询、模糊查询的实际应用(如「查询姓名包含‘张’的用户」),每一步都结合企业真实SQL日志案例,分析高效写法与常见错误。

第二天:进阶查询与开发实战提升

课时01「查询结果排序」不仅讲解ORDER BY的基本用法,更深入探讨多字段排序规则(如先按分数降序,再按注册时间升序)、排序对性能的影响(如何避免全表扫描排序)。

课时02「分页查询」结合电商商品列表展示场景,讲解LIMIT/OFFSET的使用技巧,同时指出其在大数据量下的性能缺陷,引出「基于游标分页」的优化方案,帮助学员掌握企业级分页实现方法。

课时03「统计函数」通过「统计月活跃用户数」「计算订单平均金额」等任务,学习COUNT、SUM、AVG等函数的应用,同时强调分组统计(GROUP BY)与过滤(HAVING)的配合使用,避免常见的逻辑错误。

课时04-07聚焦表连接查询,从笛卡尔积的原理讲解到内连接、外连接的区别,再到自连接在层级数据查询(如部门-员工树状结构)中的应用,每一步都通过企业项目中的真实SQL示例拆解,让学员直观理解连接查询的实际价值。

课时08「数据备份与恢复」模拟生产环境故障场景(如误删用户表),演示物理备份(直接复制数据文件)与逻辑备份(mysqldump工具)的操作流程,同时讲解备份策略制定(全量备份+增量备份),确保学员掌握数据安全的核心技能。

最后,课时09「MySQL基础小结」通过「独立完成小型项目数据库设计」的考核任务,检验学员对两日所学内容的综合应用能力,为后续进阶学习奠定扎实基础。

服务保障:从学习到上岗的全周期支持

JDBC强化班的目标不仅是技术,更致力于帮助学员实现目标。课程配套的「全方位服务体系」涵盖学习全程:

学习过程中,每完成一个模块,讲师会指导学员整理「技术成果清单」,例如「独立完成学生管理系统数据库设计」「优化电商订单查询SQL执行效率30%」,这些成果可直接转化为简历中的项目经验描述。

课程结束前,提供「一对一辅导」:HR顾问针对学员背景优化简历,重点突出JDBC相关技能与项目经验;模拟面试环节覆盖技术面(如「解释PreparedStatement的作用」)与HR面(如「描述你在项目中解决的技术挑战」),帮助学员熟悉企业招聘流程。

后,学员可加入「叩丁狼技术社群」,获得持续的技术支持:定期更新的JDBC调优技巧、数据库新技术(如MySQL 8.0新特性)分享、企业内推机会等,真正实现「一次学习,终身受益」。

选择JDBC强化班的核心价值

与市面上其他JDBC课程相比,叩丁狼强化班的优势体现在三个维度:

其一,内容深度——不仅教「如何写SQL」,更讲「为什么这样写」。从JDBC接口设计原理到MySQL存储引擎源码,学员能掌握技术底层逻辑,这是应对企业「高级开发」岗位的核心竞争力。

其二,实战密度——课程包含20+企业级项目片段,覆盖电商、金融、教育等多个领域,学员在练习中积累的项目经验,可直接用于简历编写与面试应答。

其三,服务广度——从学习中的答疑辅导,到后的技术支持,形成完整的学习生态。无论学员是刚入行的新手,还是希望进阶的初级开发工程师,都能在课程中找到成长路径。

对于渴望在Java开发领域深耕的学习者而言,JDBC强化班不仅是一门技术课程,更是连接理论知识与企业需求的桥梁。通过系统学习与实战训练,学员将真正掌握JDBC核心技能,为职业发展注入强劲动力。

沈阳叩丁狼教育

沈阳叩丁狼教育
认证 7 年

成立: 2006年

认证 地址认证 教学保障 在线预约 到店体验 售后支持
基本 文件 流程 错误 SQL 调试
  1. 请求信息 : 2026-04-06 00:38:45 HTTP/1.1 GET : http://www.aabqn.com/s/3698/c/55180.html
  2. 运行时间 : 0.031717s [ 吞吐率:31.53req/s ] 内存消耗:391.58kb 文件加载:136
  3. 缓存信息 : 0 reads,0 writes
  1. /data/web/baijiao_branch_collect/public/index.php ( 0.79 KB )
  2. /data/web/baijiao_branch_collect/vendor/autoload.php ( 0.75 KB )
  3. /data/web/baijiao_branch_collect/vendor/composer/autoload_real.php ( 1.63 KB )
  4. /data/web/baijiao_branch_collect/vendor/composer/platform_check.php ( 0.90 KB )
  5. /data/web/baijiao_branch_collect/vendor/composer/ClassLoader.php ( 15.99 KB )
  6. /data/web/baijiao_branch_collect/vendor/composer/autoload_static.php ( 4.26 KB )
  7. /data/web/baijiao_branch_collect/vendor/topthink/think-helper/src/helper.php ( 8.34 KB )
  8. /data/web/baijiao_branch_collect/vendor/topthink/think-validate/src/helper.php ( 2.19 KB )
  9. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/helper.php ( 1.47 KB )
  10. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/stubs/load_stubs.php ( 0.16 KB )
  11. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/Exception.php ( 1.69 KB )
  12. /data/web/baijiao_branch_collect/vendor/topthink/think-container/src/Facade.php ( 2.71 KB )
  13. /data/web/baijiao_branch_collect/vendor/symfony/deprecation-contracts/function.php ( 0.99 KB )
  14. /data/web/baijiao_branch_collect/vendor/symfony/polyfill-mbstring/bootstrap.php ( 8.26 KB )
  15. /data/web/baijiao_branch_collect/vendor/symfony/polyfill-mbstring/bootstrap80.php ( 9.78 KB )
  16. /data/web/baijiao_branch_collect/vendor/symfony/var-dumper/Resources/functions/dump.php ( 1.49 KB )
  17. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/App.php ( 15.30 KB )
  18. /data/web/baijiao_branch_collect/vendor/topthink/think-container/src/Container.php ( 15.76 KB )
  19. /data/web/baijiao_branch_collect/vendor/psr/container/src/ContainerInterface.php ( 1.02 KB )
  20. /data/web/baijiao_branch_collect/app/provider.php ( 0.19 KB )
  21. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/Http.php ( 6.04 KB )
  22. /data/web/baijiao_branch_collect/vendor/topthink/think-helper/src/helper/Str.php ( 7.29 KB )
  23. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/Env.php ( 4.68 KB )
  24. /data/web/baijiao_branch_collect/app/common.php ( 10.83 KB )
  25. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/helper.php ( 18.78 KB )
  26. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/Config.php ( 5.54 KB )
  27. /data/web/baijiao_branch_collect/config/app.php ( 1.29 KB )
  28. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/facade/Env.php ( 1.67 KB )
  29. /data/web/baijiao_branch_collect/config/cache.php ( 1.22 KB )
  30. /data/web/baijiao_branch_collect/config/config.php ( 0.26 KB )
  31. /data/web/baijiao_branch_collect/config/console.php ( 0.29 KB )
  32. /data/web/baijiao_branch_collect/config/cookie.php ( 0.56 KB )
  33. /data/web/baijiao_branch_collect/config/database.php ( 2.29 KB )
  34. /data/web/baijiao_branch_collect/config/filesystem.php ( 0.63 KB )
  35. /data/web/baijiao_branch_collect/config/lang.php ( 0.81 KB )
  36. /data/web/baijiao_branch_collect/config/log.php ( 1.37 KB )
  37. /data/web/baijiao_branch_collect/config/middleware.php ( 0.19 KB )
  38. /data/web/baijiao_branch_collect/config/route.php ( 1.54 KB )
  39. /data/web/baijiao_branch_collect/config/session.php ( 0.57 KB )
  40. /data/web/baijiao_branch_collect/config/trace.php ( 0.34 KB )
  41. /data/web/baijiao_branch_collect/config/view.php ( 0.81 KB )
  42. /data/web/baijiao_branch_collect/app/event.php ( 0.25 KB )
  43. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/Event.php ( 7.67 KB )
  44. /data/web/baijiao_branch_collect/app/service.php ( 0.13 KB )
  45. /data/web/baijiao_branch_collect/app/AppService.php ( 0.26 KB )
  46. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/Service.php ( 1.64 KB )
  47. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/Lang.php ( 7.35 KB )
  48. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/lang/zh-cn.php ( 13.70 KB )
  49. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/initializer/Error.php ( 3.31 KB )
  50. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/initializer/RegisterService.php ( 1.33 KB )
  51. /data/web/baijiao_branch_collect/vendor/services.php ( 0.14 KB )
  52. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/service/PaginatorService.php ( 1.52 KB )
  53. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/service/ValidateService.php ( 0.99 KB )
  54. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/service/ModelService.php ( 2.04 KB )
  55. /data/web/baijiao_branch_collect/vendor/topthink/think-trace/src/Service.php ( 0.77 KB )
  56. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/Middleware.php ( 6.72 KB )
  57. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/initializer/BootService.php ( 0.77 KB )
  58. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/Paginator.php ( 11.86 KB )
  59. /data/web/baijiao_branch_collect/vendor/topthink/think-validate/src/Validate.php ( 63.20 KB )
  60. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/Model.php ( 23.55 KB )
  61. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/model/concern/Attribute.php ( 21.05 KB )
  62. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/model/concern/AutoWriteData.php ( 4.20 KB )
  63. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/model/concern/Conversion.php ( 6.75 KB )
  64. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/model/concern/DbConnect.php ( 5.16 KB )
  65. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/model/concern/ModelEvent.php ( 2.33 KB )
  66. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/model/concern/RelationShip.php ( 28.30 KB )
  67. /data/web/baijiao_branch_collect/vendor/topthink/think-helper/src/contract/Arrayable.php ( 0.09 KB )
  68. /data/web/baijiao_branch_collect/vendor/topthink/think-helper/src/contract/Jsonable.php ( 0.13 KB )
  69. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/model/contract/Modelable.php ( 0.09 KB )
  70. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/Db.php ( 2.88 KB )
  71. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/DbManager.php ( 8.52 KB )
  72. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/Log.php ( 6.28 KB )
  73. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/Manager.php ( 3.92 KB )
  74. /data/web/baijiao_branch_collect/vendor/psr/log/src/LoggerTrait.php ( 2.69 KB )
  75. /data/web/baijiao_branch_collect/vendor/psr/log/src/LoggerInterface.php ( 2.71 KB )
  76. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/Cache.php ( 4.92 KB )
  77. /data/web/baijiao_branch_collect/vendor/psr/simple-cache/src/CacheInterface.php ( 4.71 KB )
  78. /data/web/baijiao_branch_collect/vendor/topthink/think-helper/src/helper/Arr.php ( 17.45 KB )
  79. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/cache/driver/Redis.php ( 6.94 KB )
  80. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/cache/Driver.php ( 9.03 KB )
  81. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/contract/CacheHandlerInterface.php ( 1.99 KB )
  82. /data/web/baijiao_branch_collect/app/Request.php ( 0.09 KB )
  83. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/Request.php ( 55.78 KB )
  84. /data/web/baijiao_branch_collect/app/middleware.php ( 0.26 KB )
  85. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/Pipeline.php ( 2.61 KB )
  86. /data/web/baijiao_branch_collect/vendor/topthink/think-trace/src/TraceDebug.php ( 3.40 KB )
  87. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/Route.php ( 23.73 KB )
  88. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/route/RuleName.php ( 5.75 KB )
  89. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/route/Domain.php ( 2.53 KB )
  90. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/route/RuleGroup.php ( 22.43 KB )
  91. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/route/Rule.php ( 26.95 KB )
  92. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/route/RuleItem.php ( 9.78 KB )
  93. /data/web/baijiao_branch_collect/route/app.php ( 3.05 KB )
  94. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/facade/Route.php ( 4.70 KB )
  95. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/route/dispatch/Controller.php ( 4.74 KB )
  96. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/route/Dispatch.php ( 10.44 KB )
  97. /data/web/baijiao_branch_collect/app/controller/Index.php ( 33.26 KB )
  98. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/facade/Request.php ( 9.20 KB )
  99. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/route/Url.php ( 14.07 KB )
  100. /data/web/baijiao_branch_collect/app/model/IndexModel.php ( 19.95 KB )
  101. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/facade/Config.php ( 1.37 KB )
  102. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/facade/Cache.php ( 2.06 KB )
  103. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/facade/Db.php ( 0.93 KB )
  104. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/db/connector/Mysql.php ( 5.73 KB )
  105. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/db/PDOConnection.php ( 53.74 KB )
  106. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/db/Connection.php ( 8.39 KB )
  107. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/db/ConnectionInterface.php ( 4.57 KB )
  108. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/db/builder/Mysql.php ( 16.58 KB )
  109. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/db/Builder.php ( 24.07 KB )
  110. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/db/BaseBuilder.php ( 27.50 KB )
  111. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/db/Query.php ( 15.97 KB )
  112. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/db/BaseQuery.php ( 45.13 KB )
  113. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/db/concern/TimeFieldQuery.php ( 7.43 KB )
  114. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/db/concern/AggregateQuery.php ( 3.26 KB )
  115. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/db/concern/ModelRelationQuery.php ( 20.07 KB )
  116. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/db/concern/ParamsBind.php ( 3.66 KB )
  117. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/db/concern/ResultOperation.php ( 7.01 KB )
  118. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/db/concern/WhereQuery.php ( 19.37 KB )
  119. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/db/concern/JoinAndViewQuery.php ( 7.11 KB )
  120. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/db/concern/TableFieldInfo.php ( 2.63 KB )
  121. /data/web/baijiao_branch_collect/vendor/topthink/think-orm/src/db/concern/Transaction.php ( 2.77 KB )
  122. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/log/driver/File.php ( 5.96 KB )
  123. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/contract/LogHandlerInterface.php ( 0.86 KB )
  124. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/log/Channel.php ( 3.89 KB )
  125. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/event/LogRecord.php ( 1.02 KB )
  126. /data/web/baijiao_branch_collect/vendor/topthink/think-helper/src/Collection.php ( 16.47 KB )
  127. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/Response.php ( 8.81 KB )
  128. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/response/View.php ( 3.29 KB )
  129. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/Cookie.php ( 6.06 KB )
  130. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/View.php ( 4.39 KB )
  131. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/view/driver/Php.php ( 6.44 KB )
  132. /data/web/baijiao_branch_collect/vendor/topthink/framework/src/think/contract/TemplateHandlerInterface.php ( 1.60 KB )
  133. /data/web/baijiao_branch_collect/view/index/pc/school_course_details.php ( 6.12 KB )
  134. /data/web/baijiao_branch_collect/view/index/pc/school_top.php ( 5.76 KB )
  135. /data/web/baijiao_branch_collect/view/index/pc/school_bottom.php ( 1.16 KB )
  136. /data/web/baijiao_branch_collect/vendor/topthink/think-trace/src/Html.php ( 4.42 KB )
  1. CONNECT:[ UseTime:0.000288s ] mysql:host=127.0.0.1;port=3306;dbname=baijiao_branch_collect;charset=utf8
  2. SHOW FULL COLUMNS FROM `fqi_school` [ RunTime:0.000836s ]
  3. SELECT * FROM `fqi_school` WHERE `school_id` = '3698' AND `site_id` = 18 AND `school_status` = 1 LIMIT 1 [ RunTime:0.000221s ]
  4. SHOW FULL COLUMNS FROM `fqi_school_class` [ RunTime:0.000569s ]
  5. SELECT * FROM `fqi_school_class` WHERE `school_id` = 3698 [ RunTime:0.000181s ]
  6. SHOW FULL COLUMNS FROM `fqi_school_campus` [ RunTime:0.000604s ]
  7. SELECT * FROM `fqi_school_campus` WHERE `school_id` = 3698 [ RunTime:0.000186s ]
  8. SHOW FULL COLUMNS FROM `fqi_school_course` [ RunTime:0.000658s ]
  9. SELECT `a`.*,`content` FROM `fqi_school_course` `a` LEFT JOIN `fqi_school_course_content` `b` ON `b`.`content_id`=`a`.`content_id` WHERE `school_id` = 3698 AND `a`.`content_id` = '55180' AND `course_status` = 1 AND `school_status` = 1 LIMIT 1 [ RunTime:0.000587s ]
  10. (select content_id,course_name from fqi_school_course where school_id = '3698' and content_id < '55180' and site_id = '18' order by content_id desc limit 1) union all(select content_id,course_name from fqi_school_course where school_id = '3698' and content_id > '55180' and site_id <= '18' order by content_id asc limit 1) [ RunTime:0.000433s ]
  11. SELECT * FROM `fqi_school_course` WHERE `school_id` = 3698 AND `site_id` = 18 AND `course_status` = 1 AND `school_status` = 1 AND `school_class_id` = 13957 ORDER BY `course_id` DESC LIMIT 4 [ RunTime:0.000278s ]
  12. SELECT * FROM `fqi_school_course` WHERE `school_id` = 3698 AND `site_id` = 18 AND `course_status` = 1 AND `school_status` = 1 ORDER BY `course_id` DESC LIMIT 10 [ RunTime:0.000245s ]
  13. SELECT COUNT(*) AS think_count FROM `fqi_school_course` WHERE `school_id` = 3698 AND `course_status` = 1 [ RunTime:0.000181s ]
  14. SHOW FULL COLUMNS FROM `fqi_school_teacher` [ RunTime:0.000577s ]
  15. SELECT COUNT(*) AS think_count FROM `fqi_school_teacher` WHERE `school_id` = '3698' [ RunTime:0.000199s ]
  16. SHOW FULL COLUMNS FROM `fqi_school_comments` [ RunTime:0.000559s ]
  17. SELECT COUNT(*) AS think_count FROM `fqi_school_comments` WHERE `school_id` = '3698' [ RunTime:0.000194s ]
  18. SELECT `content_id`,`course_name`,`a`.`school_id`,`b`.`school_name` FROM `fqi_school_course` `a` LEFT JOIN `fqi_school` `b` ON `b`.`school_id`=`a`.`school_id` WHERE `a`.`site_id` = '18' AND `b`.`school_status` = '1' AND `course_status` = 1 AND `course_id` < '55180' ORDER BY `content_id` DESC LIMIT 20 [ RunTime:0.020908s ]
0.032007s