批量删除mysql一个库所有数据表方法

批量删除mysql一个库所有数据表方法

删除表的命令

drop table 表名;

如果有100张表，手工执行100次，想想就崩溃。

下面提供一个使用information_schema库的方案来批量删除数据表：
SELECT CONCAT('drop table ',table_name,';') FROM information_schema.`TABLES` WHERE table_schema='数据库名';

如通过这条命令来得到drop table 表名;这样的语句，然后批量执行。
mysql> SELECT CONCAT('drop table ',table_name,';') FROM information_schema.`TABLES` WHERE table_schema='discuz';
+-------------------------------------------+
| CONCAT('drop table ',table_name,';')      |
+-------------------------------------------+
| drop table common_admincp_cmenu;          |
| drop table common_admincp_group;          |
| drop table common_admincp_member;         |
| drop table common_admincp_perm;           |
| drop table common_admincp_session;        |
| drop table common_admingroup;             |
| drop table common_adminnote;              |
| drop table common_advertisement;          |
| drop table common_advertisement_custom;   |
| drop table common_banned;                 |
| drop table common_block;                  |
| drop table common_block_favorite;         |
| drop table common_block_item;             |
| drop table common_block_item_data;        |
| drop table common_block_permission;       |
| drop table common_block_pic;              |
| drop table common_block_style;            |
| drop table common_block_xml;              |
| drop table common_cache;                  |
| drop table common_card;                   |
| drop table common_card_log;               |
| drop table common_card_type;              |
| drop table common_connect_guest;          |
| drop table common_credit_log;             |
| drop table common_credit_log_field;       |
| drop table common_credit_rule;            |
| drop table common_credit_rule_log;        |
| drop table common_credit_rule_log_field;  |
| drop table common_cron;                   |
| drop table common_devicetoken;            |
| drop table common_district;               |
| drop table common_diy_data;               |
| drop table common_domain;                 |
| drop table common_failedip;               |
| drop table common_failedlogin;            |
| drop table common_friendlink;             |
| drop table common_grouppm;                |
| drop table common_invite;                 |
| drop table common_magic;                  |
| drop table common_magiclog;               |
| drop table common_mailcron;               |
| drop table common_mailqueue;              |
| drop table common_member;                 |
| drop table common_member_action_log;      |
| drop table common_member_connect;         |
| drop table common_member_count;           |
| drop table common_member_crime;           |
| drop table common_member_field_forum;     |
| drop table common_member_field_home;      |
| drop table common_member_forum_buylog;    |
| drop table common_member_grouppm;         |
| drop table common_member_log;             |
| drop table common_member_magic;           |
| drop table common_member_medal;           |
| drop table common_member_newprompt;       |
| drop table common_member_profile;         |
| drop table common_member_profile_setting; |
| drop table common_member_security;        |
| drop table common_member_secwhite;        |
| drop table common_member_stat_field;      |
| drop table common_member_status;          |
| drop table common_member_validate;        |
| drop table common_member_verify;          |
| drop table common_member_verify_info;     |
| drop table common_member_wechat;          |
| drop table common_member_wechatmp;        |
| drop table common_myapp;                  |
| drop table common_myinvite;               |
| drop table common_mytask;                 |
| drop table common_nav;                    |
| drop table common_onlinetime;             |
| drop table common_optimizer;              |
| drop table common_patch;                  |
| drop table common_plugin;                 |
| drop table common_pluginvar;              |
| drop table common_process;                |
| drop table common_regip;                  |
| drop table common_relatedlink;            |
| drop table common_remote_port;            |
| drop table common_report;                 |
| drop table common_searchindex;            |
| drop table common_seccheck;               |
| drop table common_secquestion;            |
| drop table common_session;                |
| drop table common_setting;                |
| drop table common_smiley;                 |
| drop table common_sphinxcounter;          |
| drop table common_stat;                   |
| drop table common_statuser;               |
| drop table common_style;                  |
| drop table common_stylevar;               |
| drop table common_syscache;               |
| drop table common_tag;                    |
| drop table common_tagitem;                |
| drop table common_task;                   |
| drop table common_taskvar;                |
| drop table common_template;               |
| drop table common_template_block;         |
| drop table common_template_permission;    |
| drop table common_uin_black;              |
| drop table common_usergroup;              |
| drop table common_usergroup_field;        |
| drop table common_visit;                  |
| drop table common_word;                   |
| drop table common_word_type;              |
| drop table connect_disktask;              |
| drop table connect_feedlog;               |
| drop table connect_memberbindlog;         |
| drop table connect_postfeedlog;           |
| drop table connect_tthreadlog;            |
| drop table forum_access;                  |
| drop table forum_activity;                |
| drop table forum_activityapply;           |
| drop table forum_announcement;            |
| drop table forum_p_w_upload;              |
| drop table forum_p_w_upload_0;            |
| drop table forum_p_w_upload_1;            |
| drop table forum_p_w_upload_2;            |
| drop table forum_p_w_upload_3;            |
| drop table forum_p_w_upload_4;            |
| drop table forum_p_w_upload_5;            |
| drop table forum_p_w_upload_6;            |
| drop table forum_p_w_upload_7;            |
| drop table forum_p_w_upload_8;            |
| drop table forum_p_w_upload_9;            |
| drop table forum_p_w_upload_exif;         |
| drop table forum_p_w_upload_unused;       |
| drop table forum_attachtype;              |
| drop table forum_bbcode;                  |
| drop table forum_collection;              |
| drop table forum_collectioncomment;       |
| drop table forum_collectionfollow;        |
| drop table forum_collectioninvite;        |
| drop table forum_collectionrelated;       |
| drop table forum_collectionteamworker;    |
| drop table forum_collectionthread;        |
| drop table forum_creditslog;              |
| drop table forum_debate;                  |
| drop table forum_debatepost;              |
| drop table forum_faq;                     |
| drop table forum_filter_post;             |
| drop table forum_forum;                   |
| drop table forum_forum_threadtable;       |
| drop table forum_forumfield;              |
| drop table forum_forumrecommend;          |
| drop table forum_groupcreditslog;         |
| drop table forum_groupfield;              |
| drop table forum_groupinvite;             |
| drop table forum_grouplevel;              |
| drop table forum_groupuser;               |
| drop table forum_hotreply_member;         |
| drop table forum_hotreply_number;         |
| drop table forum_p_w_picpathtype;               |
| drop table forum_medal;                   |
| drop table forum_medallog;                |
| drop table forum_memberrecommend;         |
| drop table forum_moderator;               |
| drop table forum_modwork;                 |
| drop table forum_newthread;               |
| drop table forum_onlinelist;              |
| drop table forum_order;                   |
| drop table forum_poll;                    |
| drop table forum_polloption;              |
| drop table forum_polloption_p_w_picpath;        |
| drop table forum_pollvoter;               |
| drop table forum_post;                    |
| drop table forum_post_location;           |
| drop table forum_post_moderate;           |
| drop table forum_post_tableid;            |
| drop table forum_postcache;               |
| drop table forum_postcomment;             |
| drop table forum_postlog;                 |
| drop table forum_poststick;               |
| drop table forum_promotion;               |
| drop table forum_ratelog;                 |
| drop table forum_relatedthread;           |
| drop table forum_replycredit;             |
| drop table forum_rsscache;                |
| drop table forum_sofa;                    |
| drop table forum_spacecache;              |
| drop table forum_statlog;                 |
| drop table forum_thread;                  |
| drop table forum_thread_moderate;         |
| drop table forum_threadaddviews;          |
| drop table forum_threadcalendar;          |
| drop table forum_threadclass;             |
| drop table forum_threadclosed;            |
| drop table forum_threaddisablepos;        |
| drop table forum_threadhidelog;           |
| drop table forum_threadhot;               |
| drop table forum_threadp_w_picpath;             |
| drop table forum_threadlog;               |
| drop table forum_threadmod;               |
| drop table forum_threadpartake;           |
| drop table forum_threadpreview;           |
| drop table forum_threadprofile;           |
| drop table forum_threadprofile_group;     |
| drop table forum_threadrush;              |
| drop table forum_threadtype;              |
| drop table forum_trade;                   |
| drop table forum_tradecomment;            |
| drop table forum_tradelog;                |
| drop table forum_typeoption;              |
| drop table forum_typeoptionvar;           |
| drop table forum_typevar;                 |
| drop table forum_warning;                 |
| drop table home_album;                    |
| drop table home_album_category;           |
| drop table home_appcreditlog;             |
| drop table home_blacklist;                |
| drop table home_blog;                     |
| drop table home_blog_category;            |
| drop table home_blog_moderate;            |
| drop table home_blogfield;                |
| drop table home_class;                    |
| drop table home_click;                    |
| drop table home_clickuser;                |
| drop table home_comment;                  |
| drop table home_comment_moderate;         |
| drop table home_docomment;                |
| drop table home_doing;                    |
| drop table home_doing_moderate;           |
| drop table home_favorite;                 |
| drop table home_feed;                     |
| drop table home_feed_app;                 |
| drop table home_follow;                   |
| drop table home_follow_feed;              |
| drop table home_follow_feed_archiver;     |
| drop table home_friend;                   |
| drop table home_friend_request;           |
| drop table home_friendlog;                |
| drop table home_notification;             |
| drop table home_pic;                      |
| drop table home_pic_moderate;             |
| drop table home_picfield;                 |
| drop table home_poke;                     |
| drop table home_pokearchive;              |
| drop table home_share;                    |
| drop table home_share_moderate;           |
| drop table home_show;                     |
| drop table home_specialuser;              |
| drop table home_userapp;                  |
| drop table home_userappfield;             |
| drop table home_visitor;                  |
| drop table mobile_setting;                |
| drop table mobile_wechat_authcode;        |
| drop table mobile_wechat_masssend;        |
| drop table mobile_wechat_resource;        |
| drop table mobile_wsq_threadlist;         |
| drop table portal_article_content;        |
| drop table portal_article_count;          |
| drop table portal_article_moderate;       |
| drop table portal_article_related;        |
| drop table portal_article_title;          |
| drop table portal_article_trash;          |
| drop table portal_p_w_upload;             |
| drop table portal_category;               |
| drop table portal_category_permission;    |
| drop table portal_comment;                |
| drop table portal_comment_moderate;       |
| drop table portal_rsscache;               |
| drop table portal_topic;                  |
| drop table portal_topic_pic;              |
| drop table security_evilpost;             |
| drop table security_eviluser;             |
| drop table security_failedlog;            |
| drop table ucenter_admins;                |
| drop table ucenter_applications;          |
| drop table ucenter_badwords;              |
| drop table ucenter_domains;               |
| drop table ucenter_failedlogins;          |
| drop table ucenter_feeds;                 |
| drop table ucenter_friends;               |
| drop table ucenter_mailqueue;             |
| drop table ucenter_memberfields;          |
| drop table ucenter_members;               |
| drop table ucenter_mergemembers;          |
| drop table ucenter_newpm;                 |
| drop table ucenter_notelist;              |
| drop table ucenter_pm_indexes;            |
| drop table ucenter_pm_lists;              |
| drop table ucenter_pm_members;            |
| drop table ucenter_pm_messages_0;         |
| drop table ucenter_pm_messages_1;         |
| drop table ucenter_pm_messages_2;         |
| drop table ucenter_pm_messages_3;         |
| drop table ucenter_pm_messages_4;         |
| drop table ucenter_pm_messages_5;         |
| drop table ucenter_pm_messages_6;         |
| drop table ucenter_pm_messages_7;         |
| drop table ucenter_pm_messages_8;         |
| drop table ucenter_pm_messages_9;         |
| drop table ucenter_protectedmembers;      |
| drop table ucenter_settings;              |
| drop table ucenter_sqlcache;              |
| drop table ucenter_tags;                  |
| drop table ucenter_vars;                  |
+-------------------------------------------+
297 rows in set (0.02 sec)

mysql>

复制删除表命令出来，替换了|复制到mysql执行即可。