单项选择题

Which of the following is not a valid calendaring syntax element?（）

A. FREQ
B. BYHOUR
C. RUNDATE
D. INTERVAL
E. BYMINUTE

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多项选择题

Which two statements are true regarding the USING clause in table joins?（）

A.It can be used to join a maximum of three tables
B.It can be used to restrict the number of columns used in a NATURAL join
C.It can be used to access data from tables through equijoins as well as nonequijoins
D.It can be used to join tables that have columns with the same name and compatible data types

多项选择题

Which DBMS_SCHEDULER procedures can be used to enable a program?（）

A. ENABLE启用
B. ENABLE_PROGRAM
C. VALIDATE_PROGRAM
D. SET_ATTRIBUTE设置属性
E. SET_ENABLED

单项选择题

When setting arguments for a job, which procedure do you use for types that cannot be implicitly converted to and from a VARCHAR2 datatype?（）

A. SET_JOB_ARGUMENT_VALUE
B. SET_JOB_VALUE_ANYDATA
C. SET_JOB_ANYDATA_VALUE
D. SET_SPECIAL_JOB_VALUE
E. SET_JOB_ANYTYPE_VALUE