1.mysql導出數據庫：
運行cmd，進入到命令行，執行命令
a. mysqldump -u root -p test_db> news20161204.sql
mysqldump -u 用戶名 -p 數據庫名 >需要導出的sql文件路徑
b.sql文件將會生成在命令行的當前目錄，如果進入的是用戶目錄，則生成在用戶目錄下
2.mysql創建視圖
create or repace view
as
select a.selectlist ,b.selectlist from table a ,table bwhere
or repace 爲可選，
a.selectlist ,b.selectlist 爲查詢參數
where 條件
seleclist是查出來的字段會作爲視圖的字段，因此很多都採用別名如 :
create or replace view cathectic_avice_view
as
select
workdate,
periods,
sum(totalmoney) as totalmoneys,
sum(ball1) as ball1,
sum(ball2) as ball2,
sum(ball3) as ball3,
sum(ball4) as ball4,
sum(ball5) as ball5,
sum(ball6) as ball6,
sum(ball7) as ball7,
sum(ball8) as ball8,
sum(ball9) as ball9,
sum(ball10) as ball10,
sum(ball11) as ball11,
sum(ball12) as ball12,
sum(ball13) as ball13,
sum(ball14) as ball14,
sum(ball15) as ball15,
sum(ball16) as ball16,
sum(ball17) as ball17,
sum(ball18) as ball18,
sum(ball19) as ball19,
sum(ball20) as ball20,
sum(ball21) as ball21,
sum(ball22) as ball22,
sum(ball23) as ball23,
sum(ball24) as ball24,
sum(ball25) as ball25,
sum(ball26) as ball26,
sum(ball27) as ball27,
sum(ball28) as ball28,
sum(ball29) as ball29,
sum(ball30) as ball30,
sum(ball31) as ball31,
sum(ball32) as ball32,
sum(ball33) as ball33,
sum(ball34) as ball34,
sum(ball35) as ball35,
sum(ball36) as ball36,
sum(ball37) as ball37,
sum(ball38) as ball38,
sum(ball39) as ball39,
sum(ball40) as ball40,
sum(ball41) as ball41,
sum(ball42) as ball42,
sum(ball43) as ball43,
sum(ball44) as ball44,
sum(ball45) as ball45,
sum(ball46) as ball46,
sum(ball47) as ball47,
sum(ball48) as ball48,
sum(ball49) as ball49,
sum(ballmax) as ballmax,
sum(ballmix) as ballmix,
sum(ballgry) as ballgry,
sum(ballred) as ballred,
sum(ballblue) as ballblue,
sum(ballgreen) as ballgreen,
sum(ballsingle) as ballsingle,
sum(balldouble) as balldouble,
sum(ballmouse) as ballmouse,
sum(ballcow) as ballcow,
sum(balltiger) as balltiger,
sum(ballrabbit) as ballrabbit,
sum(balldragon) as balldragon,
sum(ballsnake) as ballsnake,
sum(ballhorse) as ballhorse,
sum(ballsheep) as ballsheep,
sum(ballmonkey) as ballmonkey,
sum(ballcock) as ballcock,
sum(balldog) as balldog,
sum(ballpig) as ballpig,
sum(ballmousespe) as ballmousespe,
sum(ballcowspe) as ballcowspe,
sum(balltigerspe) as balltigerspe,
sum(ballrabbitspe) as ballrabbitspe,
sum(balldragonspe) as balldragonspe,
sum(ballsnakespe) as ballsnakespe,
sum(ballhorsespe) as ballhorsespe,
sum(ballsheepspe)as ballsheepspe,
sum(ballmonkeyspe) as ballmonkeyspe,
sum(ballcockspe)as ballcockspe,
sum(balldogspe)as balldogspe,
sum(ballpigspe) as ballpigspe
from cathectic_ball group by workdate,periods