A user receives the following error while performing a large volume of inserts into a table:
ERROR at line 1:
ORA-01536: space quota exceeded for tablespace 'USERS'
The issue is resolved by increasing the space quota on the USERS tablespace for the user. But the user may perform such transaction in the future. You want to ensure that the command waits rather than produce an error when such an
event occurs the next time.
What can you do to achieve this before running the command in the future?
A. Set RESUMABLE_TIMEOUT for the instance.
B. Set the RESOURCE_LIMIT Parameter to TRUE.
C. Enable the database instance to use asynchronous commit.
D. Set the LOG_CHECKPOINT_TIMEOUT parameter to a nonzero value for the database instance.
Evaluate the following SQL statement used to create the PRODUCTS table:
CREATE TABLE products (
product_id NUMBER(3) PRIMARY KEY,
product_desc VARCHAR2(25),
qty NUMBER(8,2),
rate NUMBER(10,2),
total_value AS ( qty * rate))
PARTITION BY RANGE (total_value) (
PARTITION p1 VALUES LESS THAN (100000),
PARTITION p2 VALUES LESS THAN (150000),
PARTITION p3 VALUES LESS THAN (MAXVALUE))
COMPRESS FOR ALL OPERATIONS;
Which statement is true regarding this command?
A. It executes successfully but partition pruning cannot happen for this partition key.
B. It produces an error because the TOTAL_VALUE column cannot be used as a partition key.
C. It produces an error because compression cannot be used for the TOTAL_VALUE partition key.
D. It executes successfully but the values in the TOTAL_VALUE column would not be physically stored in the partitions.
The BOOKINGS table contains online booking information. When a booking is confirmed, the details are transferred to an archival table BOOKINGS_HIST and deleted from the BOOKINGS table. There is no fixed time interval between each online booking and its confirmation. Because sufficient space is not always available from the delete operations the high-water mark (HWM) is moved up and many rows are inserted below the HWM of the table. The BOOKINGS table has Automatic Segment Space Management (ASSM) and row movement enabled. The table is accessible in 24x7 mode.
What is the most efficient method to reclaim the space released by the delete operations in the BOOKINGS table?
A. Perform EXPORT, DROP, and IMPORT operations on the BOOKINGS table sequentially
B. Shrink the BOOKINGS table by using the ALTER TABLE... SHRINK SPACE command
C. Move the BOOKINGS table to a different location by using the ALTER TABLE... MOVE command
D. Deallocate the space in the BOOKINGS table by using the ALTER TABLE ... DEALLOCATE UNUSED command
You have enabled resumable space allocation in your database by setting the RESUMABLE_TIMEOUT parameter set to a nonzero value.
Which three statements about resumable space allocation are true? (Choose three.)
A. Even with resumable space allocation enabled for your database, you can disable resumable space allocation for a single session.
B. A resumable statement is suspended only if an out of space error occurs.
C. When a resumable statement is suspended, the transaction that contains the statement is also suspended.
D. A resumable statement can only be suspended and resumed once during the execution of the statement.
E. You can query the V$SESSION_WAIT dynamic performance view to identify the statements that are suspended for a session.
In which cases is reference partitioning effective in enhancing performance?
A. It is effective only in partition pruning.
B. It is effective only in partitionwise joins provided that the query predicates are different from the partitioning key.
C. It is effective in both partition pruning as well as partitionwise joins provided that the query predicates are identical to the partitioning key.
D. It is effective in both partition pruning as well as partitionwise joins irrespective of whether the query predicates are different from or identical to the partitioning key.
Sales details are being stored on a daily basis in the SALES_2007 table. A large amount of data is added to the table daily. To save disk space, you issued the following command:
ALTER TABLE sales_2007 COMPRESS FOR ALL OPERATIONS;
What would be the outcome of this command?
A. It produces an error because data already exists in the table.
B. It produces an error because compression can be enabled at table creation only.
C. It compresses all data added or modified henceforth but the existing data in the table is not compressed immediately.
D. It immediately compresses all existing data as well as new data, resulting from either fresh additions or modifications to existing data.
Which statements are true regarding system-partitioned tables? (Choose all that apply.)
A. Only a single partitioning key column can be specified.
B. All DML statements must use partition-extended syntax.
C. The same physical attributes must be specified for each partition.
D. Unique local indexes cannot be created on a system-partitioned table.
E. Traditional partition pruning and partitionwise joins are not supported on these tables.
Evaluate the following command:
SQL>ALTER SYSTEM SET db_securefile = 'IGNORE';
What is the impact of this setting on the usage of SecureFiles?
A. It forces BasicFiles to be created even if the SECUREFILE option is specified to create the LOB.
B. It forces SecureFiles to be created even if the BASICFILE option is specified to create the LOB.
C. It does not allow the creation of SecureFiles and generates an error if the SECUREFILE option is specified to create the LOB.
D. It ignores the SECUREFILE option only if a Manual Segment Space Management tablespace is used and creates a BasicFile.
Which statements are true regarding SecureFile LOBs? (Choose all that apply.)
A. The amount of undo retained is user controlled.
B. SecureFile LOBs can be used only for nonpartitioned tables.
C. Fragmentation is minimized by using variable-sized chunks dynamically.
D. SecureFile encryption allows for random reads and writes of the encrypted data.
E. It automatically detects duplicate LOB data and conserves space by storing only one copy.
Evaluate the following statements:
CREATE TABLE purchase_orders (
po_id NUMBER(4),
po_date TIMESTAMP,
supplier_id NUMBER(6),
po_total NUMBER(8,2),
CONSTRAINT order_pk PRIMARY KEY(po_id))
PARTITION BY RANGE(po_date) (
PARTITION Q1 VALUES LESS THAN (TO_DATE('1-apr-2007','d-mon-yyyy'), PARTITION Q2 VALUES
LESS THAN (TO_DATE('1-jul-2007','d-mon-yyyy'), PARTITION Q3 VALUES LESS THAN (TO_DATE('1oct-2007','d-mon-yyyy'), PARTITION Q4 VALUES LESS THAN (TO_DATE('1-jan-2008','d-mon-yyyy'));
CREATE TABLE purchase_order_items (
po_id NUMBER(4) NOT NULL,
product_id NUMBER(6) NOT NULL,
unit_price NUMBER(8,2),
quantity NUMBER(8),
CONSTRAINT po_items_fk FOREIGN KEY (po_id)
REFERENCES purchase_orders(po_id))
PARTITION BY REFERENCE(po_items_fk);
What are the two consequences of the above statements? (Choose two.)
A. Partitions of PURCHASE_ORDER_ITEMS have system-generated names.
B. Both PURCHASE_ORDERS and PURCHASE_ORDER_ITEMS tables are created with four partitions each.
C. Partitions of the PURCHASE_ORDER_ITEMS table exist in the same tablespaces as the partitions of the PURCHASE_ORDERS table.
D. The PURCHASE_ORDER_ITEMS table inherits the partitioning key from the parent table by automatically duplicating the key columns.
E. Partition maintenance operations performed on the PURCHASE_ORDER_ITEMS table are automatically reflected in the PURCHASE_ORDERS table.
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