A.The BETWEEN condition always performs less well than using the >= and <= conditions

B.The BETWEEN condition always performs better than using the >= and <= conditions

C.The Oracle join syntax performs better than the SQL:1999 compliant ANSI join syntax

D.The join syntax used makes no difference to performance

E.Table aliases can improve performance

A.It consists of a single row and single column of VARCHAR2 data type

B.It can be accessed only by the SYS user

C.It can display multiple rows and columns

D.It can display multiple rows but only a single column

E.It can be used to display only constants or pseudo columns

F.It can be accessed by any user who has the SELECT privilege in any schema

A.Make certain that the database operates in automatic undo management mode

B.Add the ONLINE clause

C.Set UNDO_TABLESPACE to UNDOTBS01

D.Add the SEGMENT SPACE MANAGEMENT AUTO clause

E.Add the NOLOGGING clause

A.The WHERE clause can be used to exclude rows before dividing them into groups

B.WHERE and HAVING clauses can be used in the same statement only if applied to different table columns

C.Aggregating functions and columns used in HAVING clauses must be specified in the SELECT list of a query

D.The HAVING clause can be used with aggregating functions in subqueries

E.The WHERE clause can be used to exclude rows after dividing them into groups

A.Column ORD_NO gets the next number from sequence ORD_SEQ whenever a row is inserted into ORD_ITEMS and no explicit value is given for ORD_NO

B.If sequence ORD_SEQ is dropped then the default value for column ORD_NO will be NULL for rows inserted into ORD_ITEMS

C.Any user inserting rows into table ORD_ITEMS must have been granted access to sequence ORD_SEQ

D.Sequence ORD_SEQ is guaranteed not to generate duplicate numbers

E.Sequence ORD_SEQ cycles back to 1 after every 5000 numbers and can cycle 20 times