《oracle查詢?nèi)腴T(mén)練習(xí)（oracle query entry to practice）》由會(huì)員上傳分享，免費(fèi)在線閱讀，更多相關(guān)內(nèi)容在教育資源-天天文庫(kù)。

1、oracle查詢?nèi)腴T(mén)練習(xí)（Oraclequeryentrytopractice）OraclequeryentrytopracticePracticeforSCOTTOracle============queryfunctionandpartof==============Thefirstpart:1,theuseofbasicquery.(1)DEPTquerytableshowsallthenameoftheDepartment.(2)EMPquerytableshowsallemployeesandtheannualinco

2、me(monthlysalary=salary+allowance),NULL,andspecifythecolumnalias"annualincome".(NVL(comm,0)commnullvaluewith0alternative)(3)querydoesnotexistinalldepartments,employees.2,limitthequerydata(1)EMPquerytableshowsmorethan2850ofthewagesoftheemployeenameandsalary.(2)EMPquer

3、ytableshowsthesalaryin1500~2850betweenallemployeesandwages.(3)EMPquerytableshowsthecodefortheemployee'snameanddepartmentcode7566.(4)EMPquerytableshowsemployeesandwagesector10and30morethan1500ofthewages.(5)EMPquerytableshowsallemployeessecondcharacters"A"inthenameofth

4、eirwages.(6)EMPquerytableshowsgrantsnonemptyallemployeesandsubsidies.3,sortingdata(1)EMPquerytableshowsallemployeesname,salary,dateofemployment,andsortedinascendingorderoftheemployeename.(2)EMPquerytableshowsMay1,1981toemployees,jobsandemploymentdatesinFebruary1,1981

5、,andsortedtodateofemployment.(3)EMPquerytableshowsthebenefitofallemployees,wagesandbenefits,andtowagesubsidiesascendinganddescendingorder.Thesecondpart:Thereareatleast1.listsalldepartmentsofanemployee.2.alistofalltheemployees'salariesmorethan"SMITH".3.listthenamesofa

6、llemployeesandtheirnames.4.listthedateofentryofallemployeesearlierthantheirdirectsuperiors.5.listthenameoftheDepartmentandtheseemployees,theDepartmentemployeelistatthesametime.Alistofall6."CLERK"(clerk)thenameandthenameofthedepartment.7.listsavarietyofpositionsthemin

7、imumsalary,andshowstheminimumsalaryofmorethan1500ofalljobsandtheminimumwage.8.listedin"SALES"(Sales)theemployee'sname,thatdonotknowthesalesdepartmentDepartmentnumber.9.listedcompaniesofallemployeessalariesarehigherthantheaverage.All10.employeesarelistedwiththe"SCOTT"

8、inthesamejobs.11.listedsalaryequalinalldepartmentsofthe30employeesworksalaryemployeenameandsalary.12.listsinalldepartmentemployeess