多项选择题
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?（）
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?（）
多项选择题 YouissuedthefollowingcommandtodropthePRODUCTStable:SQL>DROPTABLEproducts;Whatistheimplicationofthiscommand?（）