同义密码子（synonym codon）
同义密码子（synonym codon）
相关考题：
关于摆动配对哪项正确？( )A、反密码子的第一碱基和密码子的第三碱基配对可以不严格互补B、一种反密码子可以和几种密码子配对C、反密码子的第三碱基和密码子的第一碱基配对可以不严格互补D、一种反密码子可以和一组同义密码子配对E、反密码子和密码子的第二碱基之间的配对可以不严格互补
关于摆动配对正确的是( )。A、一种反密码子可以和几种密码子配对B、一种反密码子可以和一组同义密码子配对C、反密码子的第三碱基和密码子的第一碱基配对可以不严格互补D、反密码子的第一碱基和密码子的第三碱基配对可以不严格互补E、反密码子和密码子的第二碱基之间的配对可以不严格互补
在Oracle中,你以SYSDBA登录,CUSTOMER表位于Mary用户方案中,下面哪条语句为数据库中的所有用户创建CUSTOMER表的同义词()。 A.CREATE PUBLIC SYNONYM cust ON mary.customerB.CREATE PUBLIC SYNONYM cust FOR mary.customerC.CREATE SYNONYM cust ON mary.customer FOR PUBLICD.不能创建CUSTOMER的公用同义词
要以自身的模式创建私有同义词，用户必须拥有（）系统权限。A、CREATE PRIVATE SYNONYMB、CREATE PUBLIC SYNONYMC、CREATE SYNONYMD、CREATE ANY SYNONYM
单选题在Mary的方案中已经存在“客户”表。应使用哪条语句来为所有数据库用户创建一个“客户”表的同义词（）ACREATE PUBLIC SYNONYM cust ON mary.客户BCREATE PUBLIC SYNONYM cust FOR mary.客户CCREATE SYNONYM cust ON mary.客户FORPUBLICDCREATE SYNONYM cust ON mary.客户；GRANT SELECT ON cust TO PUBLIC
单选题Mary has a view called EMP_DEPT_LOC_VU that was created based on the EMPLOYEES, DEPARTMENTS, and LOCATIONS tables. She granted SELECT privilege to Scott on this view. Which option enables Scott to eliminate the need to qualify the view with the name MARY .EMP_DEP_LOC_VU each time the view is referenced?（）AScott can create a synonym for the EMP_DEPT_LOC_VU bus using the command: CREATE PRIVATE SYNONYM EDL_VU FOR mary.EMP DEPT_LOC_VU; then he can prefix the columns with this synonymn.BScott can create a synonym for the EMP_DEPT_LOC_VU by using the command: CREATE SYNONYM EDL_VU FOR mary.EMP_DEPT_LOC_VU; then he can prefix the columns with this synonym.CScott can create a synonym for the EMP_DEPT_LOC_VU by using the command: CREATE LOCAL SYNONYM EDL_VU FOR mary.EMP DEPT_LOC_VU; then he can prefix the columns with this synonym.DScott can create a synonym for the EMP_DEPT_LOC_VU by using the command: CREATE SYNONYM EDL_VU ON mary(EMP_DEPT_LOC_VU); then he can prefix the columns with this synonym.EScott cannot create a synonym because synonyms can be created only for tables.FScott cannot create any synonym for Mary's view. Mary should create a private synonym for the view and grant SELECT privilege on that synonym to Scott.
单选题Mary has a view called EMP_DEPT_LOC_VU that was created based on the EMPLOYEES,DEPARTMENTS, and LOCATIONS tables. She granted SELECT privilege to Scott on this view. Which option enables Scott to eliminate the need to qualify the view with the name MARY .EMP_DEP_LOC_VU each time the view is referenced? （）AScott can create a synonym for the EMP_DEPT_LOC_VU bus using the command: CREATE PRIVATE SYNONYM EDL_VU FOR mary. EMP DEPT_LOC_VU; then he can prefix the columns with this synonymn.BScott can create a synonym for the EMP_DEPT_LOC_VU by using the command: CREATE SYNONYM EDL_VU FOR mary. EMP DEPT_LOC_VU; then he can prefix the columns with this synonym.CScott can create a synonym for the EMP_DEPT_LOC_VU by using the command: CREATE LOCAL SYNONYM EDL_VU FOR mary. EMP DEPT_LOC_VU; then he can prefix the columns with this synonym.DScott cannot create a synonym because synonyms can be created only for tables.EScott cannot create any synonym for Mary's view. Mary should create a private synonym for the view and grant SELECT privilege on that synonym to Scott.
单选题您作为用户Julie执行了以下语句：CREATE.SYNONYM雇员FORsam.雇员；此语句将完成什么任务（）A对用户所有的“雇员”表创建一个公用同义词B对您所有的“雇员”表创建一个私有同义词C对用户Sam所有的“雇员”表创建一个公用同义词D对用户Sam所有的“雇员”表创建一个私有同义词
单选题在Oracle中，你以SYSDBA登录，CUSTOMER表位于Mary用户方案中，下面哪条语句为数据库中的所有用户创建CUSTOMER表的同义词（）。ACREATE PUBLIC SYNONYM cust ON mary.customerBCREATE PUBLIC SYNONYM cust FOR mary.customerCCREATE SYNONYM cust ON mary.customer FOR PUBLICD不能创建CUSTOMER的公用同义词
单选题Mary has a view called EMP_DEPT_LOC_VU that was created based on the EMPLOYEES, DEPARTMENTS, and LOCATIONS tables. She granted SELECT privilege to Scott on this view. Which option enables Scott to eliminate the need to qualify the view with the name MARY .EMP_DEP_LOC_VU each time the view is referenced?（）AScott can create a synonym for the EMP_DEPT_LOC_VU bus using the command: CREATE PRIVATE SYNONYM EDL_VU FOR mary.EMP DEPT_LOC_VU; then he can prefix the columns with this synonymn.BScott can create a synonym for the EMP_DEPT_LOC_VU by using the command: CREATE SYNONYM EDL_VU FOR mary.EMP_DEPT_LOC_VU; then he can prefix the columns with this synonym.CScott can create a synonym for the EMP_DEPT_LOC_VU by using the command: CREATE LOCAL SYNONYM EDL_VU FOR mary.EMP DEPT_LOC_VU; then he can prefix the columns with this synonym.DScott can create a synonym for the EMP_DEPT_LOC_VU by using the command: CREATE SYNONYM EDL_VU ON mary(EMP_DEPT_LOC_VU); then he can prefix the columns with this synonym.EScott cannot create a synonym because synonyms can be created only for tables.FScott cannot create any synonym for Mary’s view. Mary should create a private ynonym for the view and grant SELECT privilege on that synonym to Scott.
单选题Mary has a view called EMP_DEPT_LOC_VU that was created based on the EMPLOYEES, DEPARTMENTS, and LOCATIONS tables. She granted SELECT privilege to Scott on this view. Which option enables Scott to eliminate the need to qualify the view with the name MARY.EMP_DEPT_LOC_VU each time the view is referenced?（）AScott can create a synonym for the EMP_DEPT_LOC_VU by using the command CREATE PRIVATE SYNONYM EDL_VU FOR mary.EMP_DEPT_LOC_VU; then he can prefix the columns with this synonym.BScott can create a synonym for the EMP_DEPT_LOC_VU by using the command CREATE SYNONYM EDL_VU FOR mary.EMP_DEPT_LOC_VU; then he can prefix the columns with this synonym.CScott can create a synonym for the EMP_DEPT_LOC_VU by using the command CREATE LOCAL SYNONYM EDL_VU FOR mary.EMP_DEPT_LOC_VU; then he can prefix the columns with this synonym.DScott can create a synonym for the EMP_DEPT_LOC_VU by using the command CREATE SYNONYM EDL_VU ON mary(EMP_DEPT_LOC_VU); then he can prefix the columns with this synonym.EScott cannot create a synonym because synonyms can be created only for tables.FScott cannot create any synonym for Mary's view. Mary should create a private synonym for the view and grant SELECT privilege on that synonym to Scott.
单选题Which statement is true regarding synonyms?（）ASynonyms can be created only for a table BSynonyms are used to reference only those tables that are owned by another user CA public synonym and a private synonym can exist with the same name for the same table DThe DROP SYNONYM statement removes the synonym, and the table on which the synonym has been created becomes invalid
名词解释题密码子(codon)