Moodle系統(tǒng)數(shù)據(jù)庫(kù)設(shè)計(jì)說(shuō)明書(shū)

1、MOODLE據(jù)庫(kù)設(shè)計(jì)說(shuō)明書(shū)編寫(xiě):白斌審核：批準(zhǔn)：修改說(shuō)明版本號(hào)起止日期摘要作者1 .引言 71.1 目的 71.2 范圍 71.3 讀者 81.4 術(shù)語(yǔ)與縮寫(xiě)解釋 82 .數(shù)據(jù)庫(kù)設(shè)計(jì)說(shuō)明 82.1 數(shù)據(jù)庫(kù)環(huán)境說(shuō)明 82.2 數(shù)據(jù)庫(kù)的命名規(guī)則 82.3 其他說(shuō)明 83 .結(jié)構(gòu)設(shè)計(jì) 103.1 概念結(jié)構(gòu)設(shè)計(jì) 103.2 邏輯結(jié)構(gòu)設(shè)計(jì) 113.3 物理結(jié)構(gòu)設(shè)計(jì) 114 .運(yùn)用設(shè)計(jì) 114.1 adodb_logsql 114.2 mdl_assignment 114.3 mdl_assignmenmdl_submissions 124.4 mdl_backup_config 134.5 mdl_ba

2、ckup_courses 134.6 mdl_backup_files 134.7 mdl_backup_ids 134.8 mdl_backup_log 144.9 mdl_block 144.10 mdl_block_instance 144.11 mdl_block_pinned 154.12 mdl_block_rss_client 154.13 mdl_blog_tag_instance 154.14 mdl_cache_filters 164.15 mdl_cache_text 164.16 mdl_capabilities 164.17 mdl_chat 164.18 mdl_c

3、hat_messages 174.19 mdl_chat_users 174.20 mdl_choice 174.21 mdl_choice_answers 184.22 mdl_choice_options 184.23 mdl_config 184.24 mdl_config_plugins 194.25 mdl_context 194.26 mdl_context_rel 194.27 mdl_course 194.28 mdl_course_allowed_modules 214.29 mdl_course_categories 214.30 mdl_course_display 21

4、4.31 mdl_course_meta 214.32 mdl_course_modules 224.33 mdl_course_request 224.34 mdl_course_sections 224.35 mdl_data 234.36 mdl_data_comments 234.37 mdl_data_content 244.38 mdl_data_fields 244.39 mdl_data_ratings 254.40 mdl_data_records 254.41 mdl_enrol_authorize 254.42 mdl_enrol_authorize_refunds 26

5、4.43 mdl_enrol_paypal 264.44 mdl_event 274.45 mdl_forum 274.46 mdl_forum_discussions 284.47 mdl_forum_posts 284.48 mdl_forum_queue 294.49 mdl_forum_ratings 294.50 mdl_forum_read 294.51 mdl_forum_subscriptions 304.52 mdl_forum_track_prefs 304.53 mdl_glossary 304.54 mdl_glossary_alias 314.55 mdl_gloss

6、ary_categories 314.56 mdl_glossary_comments 314.57 mdl_glossary_entries 314.58 mdl_glossary_entries_categories 324.59 mdl_glossary_formats 324.60 mdl_glossary_ratings 334.61 mdl_grade_category 334.62 mdl_grade_exceptions 334.63 mdl_grade_item 334.64 mdl_grade_letter 344.65 mdl_grade_preferences 344.

7、66 mdl_groups 344.67 mdl_groups_courses_groupings 354.68 mdl_groups_courses_groups 354.69 mdl_groups_groupings 354.70 mdl_groups_groupings_groups 364.71 mdl_groups_members 364.72 mdl_hotpot 364.73 mdl_hotpot_attempts 374.74 mdl_hotpot_details 374.75 mdl_hotpot_questions 374.76 mdl_hotpot_responses 3

8、84.78 mdl_hotpot_strings 384.79 mdl_journal 384.80 mdl_journal_entries 394.81 mdl_label 394.82 mdl_lams 394.83 mdl_lesson 404.84 mdl_lesson_answers 414.85 mdl_lesson_attempts 414.86 mdl_lesson_branch 414.87 mdl_lesson_default 424.88 mdl_lesson_grades 434.89 mdl_lesson_high_scores 434.90 mdl_lesson_p

9、ages 434.91 mdl_lesson_timer 444.92 mdl_log 444.93 mdl_log_display 444.94 mdl_message 454.95 mdl_message_contacts 454.96 mdl_message_read 454.97 mdl_mnet_enrol_assignments 454.98 mdl_mnet_enrol_course 464.99 mdl_mnet_host 464.100 mdl_mnet_host2service 474.101 mdl_mnet_log 474.102 mdl_mnet_rpc 474.10

10、3 mdl_mnet_service 484.104 mdl_mnet_service2rpc 484.105 mdl_mnet_session 484.106 mdl_mnet_sso_access_control 494.107 mdl_modules 494.108 mdl_post 494.109 mdl_question 504.110 mdl_question_answers 504.111 mdl_question_attempts 514.112 mdl_question_calculated 514.113 mdl_question_categories 514.114 md

11、l_question_datasets 514.115 mdl_question_dataset_definitions 524.116 mdl_question_dataset_items 524.117 mdl_question_match 524.118 mdl_question_match_sub 524.119 mdl_question_multianswer 534.120 mdl_question_multichoice 534.121 mdl_question_numerical 534.122 mdl_question_numerical_units 534.123 mdl_

12、question_randomsamatch 544.124 mdl_question_rqp 544.125 mdl_question_rqp_servers 544.126 mdl_question_rqp_states 554.127 mdl_question_rqp_types 554.128 mdl_question_sessions 554.129 mdl_question_shortanswer 554.130 mdl_question_states 564.131 mdl_question_truefalse 564.132 mdl_quiz 564.133 mdl_quiz_

13、attempts 574.134 mdl_quiz_feedback 574.135 mdl_quiz_grades 584.136 mdl_quiz_question_instances 584.137 mdl_quiz_question_versions 584.138 mdl_resource 584.139 mdl_role 594.140 mdl_role_allow_assign 594.141 mdl_role_allow_override 594.142 mdl_role_assignments 604.143 mdl_role_capabilities 604.144 mdl

14、_role_names 604.145 mdl_scale 614.146 mdl_scorm 614.147 mdl_scorm_scoes 624.148 mdl_scorm_scoes_data 624.149 mdl_scorm_scoes_track 624.150 mdl_scorm_seq_mapinfo 634.151 mdl_scorm_seq_objective 634.152 mdl_scorm_seq_rolluprule 634.153 mdl_scorm_seq_rolluprulecond 644.154 mdl_scorm_seq_rulecond 644.15

15、5 mdl_scorm_seq_ruleconds 644.156 mdl_sessions2 644.157 mdl_stats_daily 654.158 mdl_stats_monthly 654.159 mdl_stats_user_daily 654.160 mdl_stats_user_monthly 664.161 mdl_stats_user_weekly 664.162 mdl_stats_weekly 664.163 mdl_survey 674.164 mdl_survey_analysis 674.165 mdl_survey_answers 674.166 mdl_s

16、urvey_questions 684.167 mdl_tags 684.168 mdl_timezone 684.169 mdl_user 694.170 mdl_user_info_category 704.171 mdl_user_info_data 704.172 mdl_user_info_field 704.173 mdl_user_lastaccess 714.174 mdl_user_preferences 714.175 mdl_wiki 714.176 mdl_wiki_entries 724.177 mdl_wiki_locks 724.178 mdl_wiki_page

17、s 724.179 mdl_workshop 734.180 mdl_workshop_assessments 744.181 mdl_workshop_comments 744.182 mdl_workshop_elements 754.183 mdl_workshop_grades 754.184 mdl_workshop_rubrics 754.185 mdl_workshop_stockcomments 754.186 mdl_workshop_submissions 765 .安全保密設(shè)計(jì) 766 .優(yōu)化 767 .數(shù)據(jù)庫(kù)管理與維護(hù)說(shuō)明 777.1 控制文件的備份 777.2 檢查數(shù)

18、據(jù)庫(kù)文件的狀態(tài) 771 .引言數(shù)據(jù)庫(kù)設(shè)計(jì)是軟件系統(tǒng)設(shè)計(jì)極為重要的一部分。數(shù)據(jù)模型設(shè)計(jì)和數(shù)據(jù)結(jié)構(gòu)設(shè)計(jì)是軟件開(kāi)發(fā)的 基礎(chǔ)。本文檔著重描述 MOODLE臺(tái)增補(bǔ)系統(tǒng)的數(shù)據(jù)庫(kù)系統(tǒng)設(shè)計(jì)，旨在描述符合系統(tǒng)業(yè)務(wù)需求 數(shù)據(jù)庫(kù)系統(tǒng)設(shè)計(jì)。1.1 目的系統(tǒng)設(shè)計(jì)人員、開(kāi)發(fā)人員和客戶通過(guò)閱讀本文了解MOODLE臺(tái)增補(bǔ)系統(tǒng)的數(shù)據(jù)關(guān)系、數(shù)據(jù)字典和數(shù)據(jù)庫(kù)對(duì)象（表、視圖、存儲(chǔ)過(guò)程等）。1.2 范圍本文包括了 MOODLE備管理系統(tǒng)的數(shù)據(jù)結(jié)構(gòu)設(shè)計(jì)和數(shù)據(jù)字典設(shè)計(jì)，重點(diǎn)是描述清楚每個(gè)使用 的實(shí)體數(shù)據(jù)項(xiàng)。詳細(xì)規(guī)定數(shù)據(jù)項(xiàng)的使用屬性。1.3 位：名本文的讀者是MOODLE臺(tái)增補(bǔ)系統(tǒng)的系統(tǒng)設(shè)計(jì)人員、開(kāi)發(fā)人員和客戶。參考文獻(xiàn)無(wú)1.4 術(shù)語(yǔ)與縮寫(xiě)

19、解釋縮寫(xiě)、術(shù)語(yǔ)解 釋2 .數(shù)據(jù)庫(kù)設(shè)計(jì)說(shuō)明2.1 數(shù)據(jù)庫(kù)環(huán)境說(shuō)明本系統(tǒng)采用mysql5.0數(shù)據(jù)庫(kù)服務(wù)器。數(shù)據(jù)庫(kù)有表和序列構(gòu)成。表存儲(chǔ)了應(yīng)用系統(tǒng)中的數(shù)據(jù)，序列 用于生成表中行的唯一記錄編號(hào)。2.2 數(shù)據(jù)庫(kù)的命名規(guī)則1 .數(shù)據(jù)庫(kù)表名以t開(kāi)頭加加上具體實(shí)體名，如果有實(shí)體操作分類(lèi)，即mdl_實(shí)體名_類(lèi)型，例如mdl_project _stat ,表示此表是基于 project 的基礎(chǔ)上統(tǒng)計(jì)表。2 .數(shù)據(jù)表命名必須遵循下劃線分割的原則，所有表明以mdl_開(kāi)頭，視圖以v_開(kāi)頭，序列用sequence開(kāi)頭等。2.3 其他說(shuō)明數(shù)據(jù)庫(kù)操作工具使用sqlyogent ,其主畫(huà)面如下:3,結(jié)構(gòu)設(shè)計(jì)3.1概念結(jié)構(gòu)設(shè)計(jì)i

20、n漳 13川* 一 1rti T eoihrwd a Mn4 a j jWitiriKIB a yuisd1kxn a -M # tndktD4 3 A BtWFKlU q nlluhui a *fsiF q 4K *i*r KUlh M E j hi iiw m .na-f際 , Krrugr4 wiirHfri 4 ItariP* W a CU A OMrtnVi d ndlirnl Q W： 中11史d.*T wUJbOIK 0 rraorJ14cl.-14.2-hjix二 1 W f W m4gl* QnCMjU|m raum* V hUg4 修*Cld UhT*：CaJf，、nd a

21、 givwi :.IIV J4 ywa-H- h* Hi rwurjiT* MHilE_ ratFi - r *HE - i -前值口 cur -Tftj dflE 僧 :Kwqrr事 UjT-iflhil lr-wltn1Alv hl ttH!411Ms事睢曲山忡E24c ruge,w 41 出d-由, .E Fkri ri14 F401* wtsxr、* yaE_p_fcu3 1 MH 5 m0電 3wT3.2邏輯結(jié)構(gòu)設(shè)計(jì)3.3物理結(jié)構(gòu)設(shè)計(jì)本數(shù)據(jù)庫(kù)為獨(dú)立數(shù)據(jù)庫(kù)結(jié)構(gòu)，未升級(jí)進(jìn)行服務(wù)器及數(shù)據(jù)集群配置。4.運(yùn)用設(shè)計(jì)為了更好地對(duì)數(shù)據(jù)進(jìn)行查詢統(tǒng)計(jì)，使用戶可以將新的字段或數(shù)據(jù)表加進(jìn)系統(tǒng)中， 并及時(shí)的收

22、集、整理數(shù)據(jù)，本系統(tǒng)建立了數(shù)據(jù)字典，用來(lái)對(duì)數(shù)據(jù)進(jìn)行管理。數(shù)據(jù)字典 定義了本系統(tǒng)操作的所有數(shù)據(jù)庫(kù)以及各數(shù)據(jù)庫(kù)中的表、字段等。系統(tǒng)管理程序完成數(shù) 據(jù)字典的維護(hù)功能。各子系統(tǒng)數(shù)據(jù)字典說(shuō)明如下所述。4.1 adodb_logsql4.2 mdl_assignment描述：作業(yè)資料表序號(hào)字段名稱字段描述字段類(lèi)型長(zhǎng)度允許空缺省值描述：sql執(zhí)彳J記錄表序號(hào)字段名稱字段描述字段類(lèi)型長(zhǎng)度允許空缺省值1id自增量編號(hào)bigint19,02created創(chuàng)建時(shí)間datetime3sql0SQL語(yǔ)句varchar2504sqll執(zhí)行內(nèi)容text655355params參數(shù)text655356tracer執(zhí)行記錄te

23、xt655357timer執(zhí)行時(shí)間decimal16,60.0000001idIDbigint19,02course課程IDbigint19,03name作業(yè)名稱varchar2554description作業(yè)描述text655355format格式smallint5,06assignmenttype作業(yè)類(lèi)型varchar507resubmit是否允許學(xué)生刪除作業(yè)tinyint3,08preventlate是否禁止遲交tinyint3,09emailteachers是否使用E-mail提醒教師tinyint3,010var1允許上傳文件的最大數(shù)目bigint19,011var2是否允許備注bi

24、gint19,012var3在作業(yè)開(kāi)始提交前隱藏作業(yè)說(shuō)明bigint19,013var4是否發(fā)送評(píng)分請(qǐng)求bigint19,014var5bigint19,015maxbytes上傳文件大小限制bigint19,010000016timedue截止時(shí)間bigint19,017timeavailable開(kāi)始時(shí)間bigint19,018grade成績(jī)bigint19,019timemodified修改時(shí)間bigint19,04.3 mdl_assignmenmdl_submissions描述：提交的作業(yè)序號(hào)字段名稱字段描述字段類(lèi)型長(zhǎng)度 允許空缺省值1idIDbigint19,02assignment

25、作業(yè)IDbigint19,03userid用戶IDbigint19,04timecreated作業(yè)創(chuàng)建時(shí)間bigint19,05timemodified作業(yè)提交時(shí)間bigint19,0上傳文件個(gè)數(shù)，0好像是允許多6numfiles個(gè)bigint19,07data1作業(yè)信息text655358data2作業(yè)是否提交的相關(guān)信息text655359grade成績(jī)bigint19,010submissioncomment作業(yè)評(píng)論text6553511format格式smallint5,012teacher老師IDbigint19,013timemarked打分時(shí)間bigint19,0是否發(fā)送E-mai

26、l通知作業(yè)回14mailedtinyint3,0復(fù)情況4.4 mdl_backup_config描述：配置備份表序號(hào)字段名稱字段描述字段類(lèi)型長(zhǎng)度允許空缺省值1id自增量編號(hào)bigint19,02name備份名稱varchar2553value備份值varchar2554.5 mdl_backup_courses描述：課程備份表序號(hào)字段名稱字段描述字段類(lèi)型長(zhǎng)度允許空缺省值1id自增量編號(hào)bigint19,02courseid課程IDbigint19,03laststarttime最近開(kāi)始時(shí)間bigint19,04lastendtime最后結(jié)束時(shí)間bigint19,05laststatus最后的狀

27、態(tài)varchar16nextstarttime下一個(gè)開(kāi)始時(shí)間bigint19,04.6 mdl_backup_files描述：文件備份表序號(hào)字段名稱字段描述字段類(lèi)型長(zhǎng)度允許空缺省值1id自增量編號(hào)bigint19,02backup_code備份代碼bigint19,03file_type文件類(lèi)型varchar104path備份路徑varchar2555old_id原文件IDbigint19,06new_id新的文件IDbigint19,04.7 mdl_backup_ids描述：標(biāo)識(shí)備份表序號(hào)字段名稱字段描述字段類(lèi)型長(zhǎng)度允許空缺省值1id_自增量編號(hào)bigint19,02backup_code

28、備份代碼bigint19,03table_name表名varchar304old_id原IDbigint19,056new_id info新的ID備份信息bigint mediumtext19,0167772154.8 mdl_backup_log描述：日志備份表序號(hào)字段名稱字段描述字段類(lèi)型長(zhǎng)度 允許空缺省值iid自增量編號(hào)bigint19,02courseid課程IDbigint19,03time創(chuàng)建時(shí)間bigint19,04laststarttime最后開(kāi)始時(shí)間bigint19,05info備份信息說(shuō)明varchar2554.9 mdl_block描述：版塊表序號(hào)字段名稱字段描述字段類(lèi)型長(zhǎng)

29、度 允許空缺省值iid自增量編號(hào)bigint19,02name動(dòng)作名稱varchar403version版本bigint19,04cron是否計(jì)劃任務(wù)bigint19,05lastcron最近一次執(zhí)行bigint19,06visible是否可見(jiàn)tinyint3,017multiple多個(gè)tinyint3,04.10 mdl_block_instance描述：版塊實(shí)例表序號(hào)字段名稱字段描述字段類(lèi)型長(zhǎng)度 允許空缺省值iid自增量編號(hào)bigint19,02blockid動(dòng)作IDbigint19,03pageid頁(yè)面IDbigint19,04pagetype頁(yè)碼類(lèi)型varchar205position

30、定位varchar106weight加權(quán)smallint5,07visible是否可見(jiàn)tinyint3,08configdata配置數(shù)據(jù)內(nèi)容text655354.11 mdl_block_pinned描述：固定版塊表序號(hào)字段名稱字段描述字段類(lèi)型長(zhǎng)度允許空缺省值1id自增量編號(hào)bigint19,02blockid動(dòng)作IDbigint19,03pagetype頁(yè)碼類(lèi)型varchar204position位置varchar105weight加權(quán)smallint5,06visible是否可見(jiàn)tinyint3,07configdata配置數(shù)據(jù)text655354.12 mdl_block_rss_cli

31、ent描述：版塊RSS客戶端表序號(hào)字段名稱字段描述字段類(lèi)型長(zhǎng)度允許空缺省值1id自增量編號(hào)bigint19,02userid用戶IDbigint19,03title標(biāo)題text655354preferredtitle首先標(biāo)題varchar645description描述text655356shared是否分享tinyint3,07url分享地址varchar2554.13 mdl_blog_tag_instance描述：版塊標(biāo)簽實(shí)例表序號(hào)字段名稱字段描述字段類(lèi)型長(zhǎng)度允許空缺省值1id自增量編號(hào)bigint19,02entryid條目IDbigint19,03tagid標(biāo)簽IDbigint19,

32、04groupid群組IDbigint19,05courseid課程IDbigint19,06userid用戶IDbigint19,07timemodified編輯時(shí)間bigint19,04.14 mdl_cache_filters描述：緩存過(guò)濾表序號(hào)字段名稱字段描述字段類(lèi)型長(zhǎng)度允許空缺省值1id自增量編號(hào)bigint19,02filter過(guò)濾器名varchar323version版本bigint19,04md5keymd5m密密鑰varchar325rawtext原內(nèi)容text655356timemodified編輯時(shí)間bigint19,04.15 mdl_cache_text描述：緩存文本

33、表序號(hào)字段名稱字段描述字段類(lèi)型長(zhǎng)度允許空缺省值1id_自增量編號(hào)bigint19,02md5keymd5m密密鑰varchar323formattedtext格式化后的內(nèi)容longtext42949672954timemodified編輯時(shí)間bigint19,04.16 mdl_capabilities描述：能力表序號(hào)字段名稱字段描述字段類(lèi)型長(zhǎng)度允許空缺省值1id自增量編號(hào)bigint19,02name名稱varchar2553captype能力類(lèi)型varchar504contextlevel權(quán)限級(jí)別bigint19,05component組件varchar1006riskbitmaskbig

34、int19,04.17 mdl_chat描述：聊天室序號(hào)字段名稱字段描述字段類(lèi)型長(zhǎng)度允許空缺省值1id自增量編號(hào)bigint19,02course課程IDbigint19,03name聊天室名varchar2554intro簡(jiǎn)介text655355keepdays保持天數(shù)bigint19,06studentlogs每個(gè)人都可以查看過(guò)去的會(huì)話smallint5,07chattime聊天時(shí)間bigint19,08schedule附表smallint5,09timemodified編輯時(shí)間bigint19,04.18 mdl_chat_messages描述：聊天信息表序號(hào)字段名稱字段描述字段類(lèi)型長(zhǎng)度

35、允許空缺省值1id自增量編號(hào)bigint19,02chatid聊天對(duì)話IDbigint19,03userid用戶IDbigint19,04groupid群組IDbigint19,05system系統(tǒng)標(biāo)志位tinyint3,06message信息內(nèi)容text655357timestamp編輯時(shí)間bigint19,04.19 mdl_chat_users描述：聊天用戶表序號(hào)字段名稱字段描述字段類(lèi)型長(zhǎng)度允許空1id_自增量編號(hào)bigint19,02chatid聊天對(duì)話IDbigint19,03userid用戶IDbigint19,04groupid群組IDbigint19,05version版本va

36、rchar166ipIP地址varchar157firstping第一次發(fā)送的IP地址bigint19,08lastping最后一次發(fā)送的IP地址bigint19,09lastmessageping最后一次發(fā)送信息的IP地址bigint19,010sid發(fā)送varchar3211course課程IDbigint19,012lang語(yǔ)言類(lèi)型varchar30缺省值4.20 mdl_choice描述：投票信息表4.21mdl_choice_answers描述：投票回答記錄表序號(hào)字段名稱字段描述字段類(lèi)型長(zhǎng)度 允許空缺省值1id自增量編號(hào)bigint19,02choiceid投票 IDbigint19

37、,03userid用戶 IDbigint19,04optionid選項(xiàng) IDbigint19,05timemodified編輯時(shí)間bigint19,0序號(hào)字段名稱字段描述字段類(lèi)型長(zhǎng)度1id自增量編號(hào)bigint19,02course課程IDbigint19,03name投票名稱varchar2554text詳細(xì)內(nèi)容text655355format是否格式化tinyint3,06publish公布結(jié)果tinyint3,07showresults是否顯示結(jié)果tinyint3,08display是否顯示smallint5,09allowupdate是否允許修改投票tinyint3,010showun

38、answered是否顯示未回答的選項(xiàng)tinyint3,011limitanswers是否限制回答tinyint3,012timeopen打開(kāi)投票時(shí)間bigint19,013timeclose關(guān)閉時(shí)間bigint19,014timemodified編輯時(shí)間bigint19,0允許空缺省值4.22 mdl_choice_options描述：投票選項(xiàng)表序號(hào)字段名稱字段描述字段類(lèi)型長(zhǎng)度允許空缺省值1id_自增量編號(hào)bigint19,02choiceid投票IDbigint19,03text投票內(nèi)容說(shuō)明text655354maxanswers課程的最大問(wèn)題數(shù)bigint19,05timemodified

39、編輯時(shí)間bigint19,04.23 mdl_config描述：配置表序號(hào)123字段名稱字段描述idnamevalueID參數(shù)名稱值4.24 mdl_config_plugins描述：插件配置表序號(hào)字段名稱字段描述iidID2plugin插件名稱3name參數(shù)名稱4value值4.25 mdl_context描述：正文級(jí)別與事例對(duì)應(yīng)表序號(hào)字段名稱字段描述iid自增量編號(hào)指明是哪一種：用戶，課程，模2contextlevel塊,還是系統(tǒng) )3instanceid事件ID4path路徑5depth深度4.26 mdl_context_rel描述：權(quán)限關(guān)系表序號(hào)字段名稱字段描述iid自增量編號(hào)2cl

40、正文ID13c2正文ID24.27 mdl_course描述：課程設(shè)置序號(hào)字段名稱字段描述iid_課程ID字段類(lèi)型 bigint varchartext長(zhǎng)度19,025565535允許空缺省值字段類(lèi)型長(zhǎng)度允許空缺省值bigint19,0varchar100corevarchar100text65535字段類(lèi)型長(zhǎng)度允許空缺省值bigint19,0bigint19,0否0bigint19,0否0varchar255tinyint2否0字段類(lèi)型長(zhǎng)度允許空缺省值bigint19,0bigint19,0否bigint19,0否字段類(lèi)型長(zhǎng)度允許空缺省值bigint19,02category課程分類(lèi)IDbi

41、gint19,03sortorder排序編號(hào)bigint19,04password選課密碼varchar505fullname課程名全稱varchar2546shortname課程名簡(jiǎn)稱varchar1007idnumber課程編碼IDvarchar1008summary課程概要text655359format課程格式varchar10topics10showgrades是否顯示成績(jī)tinyint3,0111modinfo課程頁(yè)顯示的相關(guān)功能模塊代 碼信息longtext429496729512newsitems顯示的新聞條目數(shù)mediumint7,0113teacher指定編輯權(quán)限教師var

42、char100Teacher14teachers無(wú)編輯權(quán)限教師varchar100Teachers15student指定編輯權(quán)限學(xué)生varchar100Student16students無(wú)編輯權(quán)限學(xué)生varchar100Students17guest是否允許訪客進(jìn)入課程tinyint3,018startdate課程開(kāi)始時(shí)間bigint19,019enrolperiod選課時(shí)間限制天數(shù)bigint19,020numsections星期/主題的數(shù)目mediumint7,0121marker課程標(biāo)記bigint19,022maxbytes最大上傳文件bigint19,023showreports是否

43、顯示活動(dòng)報(bào)表smallint5,024visible課程有效性，是否允許學(xué)生學(xué) 習(xí)tinyint3,0125hiddensections隱藏的課程內(nèi)容模塊的方式tinyint3,026groupmode小組模式smallint5,027groupmodeforce強(qiáng)制小組模式smallint5,028lang指定課程語(yǔ)言類(lèi)型varchar3029theme主題varchar5030cost課程費(fèi)用varchar1031currency費(fèi)用貨幣單位varchar3USD32timecreated課程創(chuàng)建時(shí)間bigint19,033timemodified課程修改時(shí)間bigint19,034metacourse該課程是元課程么tinyint3,035requested申請(qǐng)tinyint3,036restrictmodules是否限制模塊tinyint3,037expirynotify選課期滿通告，是否啟用通告tinyint3,038expirythreshold課程到期后期限bigint19,039notifystudents選課期滿通告，是否提醒學(xué)生tinyint3,040enrollable課程是否可以被選修tinyint3,0141enrolstartdate選課開(kāi)始時(shí)間bigi