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數(shù)據(jù)表是啥啊
2017-02-08
源自:MySQL開發(fā)技巧(一) 2-1
正在回答
各位好,現(xiàn)提供該課程建庫建表腳本共享,不過建議初學(xué)者最好依靠自己敲代碼。
--?注意自己是否需要建庫 --?create?database?if?not?exists?mysqldv1; --?新建?user1?表 create?table?if?not?exists?user1?( ??id?smallint?unsigned?primary?key?auto_increment, ??user_name?varchar(40), ??over?varchar(40) ); --?新建?user2?表 create?table?if?not?exists?user2?( ??id?smallint?unsigned?primary?key?auto_increment, ??user_name?varchar(40), ??over?varchar(40) ); --?新建?user_kills?表 create?table?if?not?exists?user_kills?( ??id?smallint?unsigned?primary?key?auto_increment, ??user_id?smallint?unsigned, ??timestr?timestamp?default?CURRENT_TIMESTAMP, ??kills?smallint?unsigned ); --?插入?user1?表數(shù)據(jù) insert?into?user1(user_name,over)?values?('唐僧',?'旃檀功德佛'); insert?into?user1(user_name,over)?values?('豬八戒',?'凈壇使者'); insert?into?user1(user_name,over)?values?('孫悟空',?'斗戰(zhàn)勝佛'); insert?into?user1(user_name,over)?values?('沙僧',?'金身羅漢'); --?插入?user2?表數(shù)據(jù) insert?into?user2(user_name,over)?values?('孫悟空',?'成佛'); insert?into?user2(user_name,over)?values?('牛魔王',?'被降服'); insert?into?user2(user_name,over)?values?('蛟魔王',?'被降服'); insert?into?user2(user_name,over)?values?('鵬魔王',?'被降服'); insert?into?user2(user_name,over)?values?('獅駝王',?'被降服'); --?插入?user_kills?表數(shù)據(jù) insert?into?user_kills(user_id,?timestr,?kills)?values?(2,?timestamp('2013-01-10'),?10); insert?into?user_kills(user_id,?timestr,?kills)?values?(2,?timestamp('2013-02-01'),?2); insert?into?user_kills(user_id,?timestr,?kills)?values?(2,?timestamp('2013-02-05'),?12); insert?into?user_kills(user_id,?timestr,?kills)?values?(4,?timestamp('2013-01-10'),?3); insert?into?user_kills(user_id,?timestr,?kills)?values?(4,?timestamp('2013-02-11'),?5); insert?into?user_kills(user_id,?timestr,?kills)?values?(2,?timestamp('2013-02-06'),?1); insert?into?user_kills(user_id,?timestr,?kills)?values?(3,?timestamp('2013-01-11'),?20); insert?into?user_kills(user_id,?timestr,?kills)?values?(2,?timestamp('2013-02-12'),?10); insert?into?user_kills(user_id,?timestr,?kills)?values?(3,?timestamp('2013-02-07'),?17);
我是說整個(gè)視頻的數(shù)據(jù)表
舉報(bào)
DBA和開發(fā)人員都必備的技能,SQL技巧一個(gè)好程序員必備技能
3 回答數(shù)據(jù)表獲取
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1 回答left join 是否左表數(shù)據(jù)百萬時(shí), 效率極低
2 回答兩張 表的字段和數(shù)據(jù)可否提供
3 回答視頻的數(shù)據(jù)表結(jié)構(gòu)能帖出來嗎
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2017-03-28
各位好,現(xiàn)提供該課程建庫建表腳本共享,不過建議初學(xué)者最好依靠自己敲代碼。
2017-02-08
我是說整個(gè)視頻的數(shù)據(jù)表