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  • mysql的粗略学习

    输入root进入mysql

    试着输入了两个语法都没动静,输入h终于有反应了

    语法错误

    show databases; //显示数据库

    为什么没有人告诉我还有个英文下的分隔符号。。。

    查的资料不是没有就是汉语的符号。。。

    mysql> show databases;
    +--------------------+
    | Database |
    +--------------------+
    | information_schema |
    | my_db |
    | mysql |
    | performance_schema |
    | shopdata |
    | think |
    | thinkphp |
    | wenzhang |
    +--------------------+
    8 rows in set (0.05 sec)

    炒大米。。。味道不错。。。

    我想看看shopdata这个数据库里都有些什么表

    mysql> use shopdata;
    Database changed
    mysql> show tables;
    +----------------------------+
    | Tables_in_shopdata |
    +----------------------------+
    | ecs_account_log |
    | ecs_ad |
    | ecs_ad_custom |
    | ecs_ad_position |
    | ecs_admin_action |
    | ecs_admin_log |
    | ecs_admin_message |
    | ecs_admin_user |
    | ecs_adsense |
    | ecs_affiliate_log |
    | ecs_agency |
    | ecs_area_region |
    | ecs_article |
    | ecs_article_cat |
    | ecs_attribute |
    | ecs_auction_log |
    | ecs_auto_manage |
    | ecs_back_goods |
    | ecs_back_order |
    | ecs_bonus_type |
    | ecs_booking_goods |
    | ecs_brand |
    | ecs_card |
    | ecs_cart |
    | ecs_cat_recommend |
    | ecs_category |
    | ecs_collect_goods |
    | ecs_comment |
    | ecs_crons |
    | ecs_delivery_goods |
    | ecs_delivery_order |
    | ecs_email_list |
    | ecs_email_sendlist |
    | ecs_error_log |
    | ecs_exchange_goods |
    | ecs_favourable_activity |
    | ecs_feedback |
    | ecs_friend_link |
    | ecs_goods |
    | ecs_goods_activity |
    | ecs_goods_article |
    | ecs_goods_attr |
    | ecs_goods_cat |
    | ecs_goods_gallery |
    | ecs_goods_type |
    | ecs_group_goods |
    | ecs_keywords |
    | ecs_link_goods |
    | ecs_mail_templates |
    | ecs_member_price |
    | ecs_nav |
    | ecs_order_action |
    | ecs_order_goods |
    | ecs_order_info |
    | ecs_pack |
    | ecs_package_goods |
    | ecs_pay_log |
    | ecs_payment |
    | ecs_plugins |
    | ecs_products |
    | ecs_reg_extend_info |
    | ecs_reg_fields |
    | ecs_region |
    | ecs_role |
    | ecs_searchengine |
    | ecs_sessions |
    | ecs_sessions_data |
    | ecs_shipping |
    | ecs_shipping_area |
    | ecs_shop_config |
    | ecs_snatch_log |
    | ecs_stats |
    | ecs_suppliers |
    | ecs_tag |
    | ecs_template |
    | ecs_topic |
    | ecs_user_account |
    | ecs_user_address |
    | ecs_user_bonus |
    | ecs_user_feed |
    | ecs_user_rank |
    | ecs_users |
    | ecs_virtual_card |
    | ecs_volume_price |
    | ecs_vote |
    | ecs_vote_log |
    | ecs_vote_option |
    | ecs_wholesale |
    | jindong_ad |
    | jindong_ad_position |
    | jindong_template |
    | mc_action |
    | mc_attached |
    | mc_meta |
    | mc_option |
    | mc_page |
    | shopdatacommentmeta |
    | shopdatacomments |
    | shopdatalinks |
    | shopdataoptions |
    | shopdatapostmeta |
    | shopdataposts |
    | shopdataterm_relationships |
    | shopdataterm_taxonomy |
    | shopdataterms |
    | shopdatausermeta |
    | shopdatausers |
    | shopdatawfbadleechers |
    | shopdatawfblocks |
    | shopdatawfblocksadv |
    | shopdatawfconfig |
    | shopdatawfcrawlers |
    | shopdatawffilemods |
    | shopdatawfhits |
    | shopdatawfhoover |
    | shopdatawfissues |
    | shopdatawfleechers |
    | shopdatawflockedout |
    | shopdatawflocs |
    | shopdatawflogins |
    | shopdatawfnet404s |
    | shopdatawfreversecache |
    | shopdatawfscanners |
    | shopdatawfstatus |
    | shopdatawfthrottlelog |
    | shopdatawfvulnscanners |
    +----------------------------+
    126 rows in set (0.00 sec)

    mysql>

    换一个

    mysql> use thinkphp;
    Database changed
    mysql> show tables;
    +--------------------+
    | Tables_in_thinkphp |
    +--------------------+
    | think_data |
    +--------------------+
    1 row in set (0.00 sec)

    mysql>

    查看think_data表里有几个列,都是写什么

    mysql> desc think_data;
    +-------+-----------------+------+-----+---------+----------------+
    | Field | Type | Null | Key | Default | Extra |
    +-------+-----------------+------+-----+---------+----------------+
    | id | int(8) unsigned | NO | PRI | NULL | auto_increment |
    | data | varchar(255) | NO | | NULL | |
    +-------+-----------------+------+-----+---------+----------------+
    2 rows in set (0.01 sec)

    mysql>

    查看列中具体有哪些数据,语法从phpadmin里找到的。。。

    mysql> SELECT * FROM `think_data`;
    +----+-----------+
    | id | data |
    +----+-----------+
    | 1 | thinkphp |
    | 2 | php |
    | 3 | framework |
    +----+-----------+
    3 rows in set (0.00 sec)

    mysql>

    大概就是这么个结构了。。。

    如何建立一个utf8数据库?

    mysql> CREATE DATABASE confluence CHARACTER SET utf8 COLLATE utf8_bin;
    Query OK, 1 row affected (0.00 sec)

    mysql> show databases;
    +--------------------+
    | Database |
    +--------------------+
    | information_schema |
    | confluence |
    | my_db |
    | mysql |
    | performance_schema |
    | shopdata |
    | think |
    | thinkphp |
    | wenzhang |
    +--------------------+
    9 rows in set (0.00 sec)

    mysql>

    百度一下

    character [英]ˈkærəktə(r) [美]ˈkærəktɚ
    n. 性格;特点;字母;角色
    vt. 刻,印;使具有特征

    collate

    [英][kə'leɪt][美][kəˈlet, ˈkɑlˌet, ˈkoˌlet]

    vt.核对,校对(书、底稿等); (装钉)整理,检查; [宗]委任牧师职; 

    角色这个单词好像学过,校对就完全没有映像了。。。

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  • 原文地址:https://www.cnblogs.com/hellowzd/p/4083904.html
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