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DBMS是什么？（）
- A、操作系统
- B、数据库管理系统
- C、数据库
- D、数据库管理员
参考答案
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数据库(DB)、数据库系统(DBS)、数据库管理系统(DBMS)三者之间的关系是A）DBS包括DB和DBMS B）DBMS包括DB和DBSC）DB包括DBS和DBMS D）DBS就是DB，也就是DBMS
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DB、DBMS和DBS三者间的关系为______。A) DB包括DBMS和DBSB) DBS包括DB和DBMSC) DBMS包括DBS和DBD) DBS与DB和DBMS无关A．B．C．D．
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YouarecreatingaSQLTuningSettoallowagroupofSQLstatementstobepassedintotheSQLTuningAdvisor.WhichpackageswillyouusetocreatetheSQLTuningSet?()
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YouwanttorebuildafreelistinthefreelistsoftheEMPLOYEEtableintheScottschema.Whichpackagewillyouusetoaccomplishthis?()
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WhichpackageprovidesAPI’sfortheSQLTuningAdvisor?()
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Youwanttoenforceacompany’sbusinesspolicyonseveralobjectsbyusingasinglepolicyfunction.Whichtwotypesofpoliciescanbeassignedtothepolicy_typeargumentinthedbms_rls.add_policyproceduretoachievetheaboveobjective？（）A.DBMS_RLS.STATICB.DBMS_RLS.DYNAMICC.DBMS_RLS.SHARED_STATICD.DBMS_RLS.CONTEXT_SENSITIVEE.DBMS_RLS.SHARED_CONTEXT_SENSITIVE
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Whichofthefollowingpackagesmaintainsinformationintherecoverycatalog?()
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You want to enforce a company’s business policy on several objects by using a single policy function. Which two types of policies can be assigned to the policy_type argument in the dbms_rls.add_policy procedure to achieve the above objective？ （）A、 DBMS_RLS.STATICB、 DBMS_RLS.DYNAMICC、 DBMS_RLS.SHARED_STATICD、 DBMS_RLS.CONTEXT_SENSITIVEE、 DBMS_RLS.SHARED_CONTEXT_SENSITIVE
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DBMS_RESOURCE_MANAGER
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问答题数据库系统的组成是什么？DBMS指的是什么？
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