Oracle 1z0-082 Exam With Confidence Using Practice Dumps

A table can have only one primary key but multiple foreign keys

A table can have only one primary key and one foreign key

The foreign key columns and parent table primary key columns must have the same names

It is possible for child rows that have a foreign key to remain in the child table at the time the parent row is deleted

It is possible for child rows that have a foreign key to be deleted automatically from the child table at the time the parent row is deleted

Only the primary key can be defined at the column and table level

Primary key and foreign key constraints can be defined at both the column and table level

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

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

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

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

Sequence ORD_SEQ is guaranteed not to generate duplicate numbers

SELECT &&col1, &&col2FROM &tableWHERE &&condition = &&cond;

SELECT &col1, &col2FROM &&tableWHERE &condition;

SELECT &col1, &col2FROM “&table”WHERE &condition;

SELECT ‘&&col1’, ‘&&col2’FROM &tableWHERE ‘&&condition’ = ‘&cond’;

SELECT &&col1, &&col2FROM &tableWHERE &&condition;