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Consider the following statement on a RANGE partitioned table: ALTER TABLE orders DROP PARTITION p1, p3; What is the outcome of executing the above statement?（）
- A、A syntax error will result as you cannot specify more than one partition in the same statement
- B、All data in p1 and p3 partitions are removed and the table definition is changed
- C、All data in p1 and p3 partitions are removed, but the table definition remains unchanged
- D、Only the first partition (p1) will be dropped as only one can be dropped at any time
参考答案
更多 “ Consider the following statement on a RANGE partitioned table: ALTER TABLE orders DROP PARTITION p1, p3; What is the outcome of executing the above statement?（）A、A syntax error will result as you cannot specify more than one partition in the same statementB、All data in p1 and p3 partitions are removed and the table definition is changedC、All data in p1 and p3 partitions are removed, but the table definition remains unchangedD、Only the first partition (p1) will be dropped as only one can be dropped at any time” 相关考题
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View the exhibit and examine the TRANS table‘s storage information.After a massive delete operation, you executed the following statement to shrink the TRANS table:SQL ALTER TABLE trans SHRINK SPACE CASCADE;Which statement describes the outcome of the command?（）A. An error is produced.B. The table and all related objects are compacted and the position of the high-water mark (HWM) for the table is adjustedC. The table and related indexes are compacted but the position of the high-water mark (HWM) for the table remains unchangedD. The unused space in the table is reclaimed and returned to the tablespace and the data manipulation language (DML) triggers on the table are fired during the shrinking process
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Evaluate the following SQL statement used to create the PRODUCTS table: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.
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You plan to use Flashback Drop feature to recover a dropped table SALES_EMP. No other table with the same name exists in the schema.You query RECYCLEBIN and find multiple entries for the SALES_EMP table as follows, You then issue the following statement to recover the table:SQL FLASHBACK TABLE sales_emp TO BEFORE DROP;What would be the outcome of the precedent statement?（）A. It retrieves the latest version of the table from the recycle binB. It retrieves the oldest version of the table from the recycle binC. It retrieves the version of the table for which undo information is availableD. It returns an error because the table name is not specified as per the names in the OBJECT_NAME column
考题
Consider the following statement on a RANGE partitioned table: ALTER TABLE orders DROP PARTITION p1, p3;What is the outcome of executing the above statement?()
A.A syntax error will result as you cannot specify more than one partition in the same statementB.All data in p1 and p3 partitions are removed and the table definition is changedC.All data in p1 and p3 partitions are removed, but the table definition remains unchangedD.Only the first partition (p1) will be dropped as only one can be dropped at any time
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Examine the description of the MARKS table:SUBJ1 and SUBJ2 indicate the marks obtained by a student in two subjects.Examine this SELECT statement based on the MARKS table:What is the result of the SELECT statement?（）A. The statement executes successfully and returns the student ID and sum of all marks for each student who obtained more than the average mark in each subject.B. The statement returns an error at the SELECT clause.C. The statement returns an error at the WHERE clause.D. The statement returns an error at the ORDER BY clause.
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Which two partitioned table maintenance operations support asynchronous Global Index Maintenance inOracle database 12c?()
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考题
You need to create a partitioned table to store historical data and you issued the following command： CREATE TABLE purchase_interval PARTITION BY RANGE （time_id） INTERVAL （NUMTOYMINTERVAL（1，’month’）） STORE IN （tbs1，tbs2，tbs3） （ PARTITION p1 VALUES LESS THAN（TO_DATE（’1-1-2005’， ’dd-mm-yyyy’））， PARTITION p2 VALUES LESS THAN（TO_DATE（’1-1- 2007’， ’dd-mm-yyyy’））） AS SELECT * FROM purchases WHERE time_id TO_DATE（’1-1-2007’，’dd-mm-yyyy’）； What is the outcome of the above command？（） A、 It returns an error because the range partitions P1 and P2 should be of the same range.B、 It creates two range partitions （P1， P2）. Within each range partition， it creates monthwise subpartitions.C、 It creates two range partitions of varying range. For data beyond ’1-1-2007，’ it creates partitions with a width of one month each.D、 It returns an error because the number of tablespaces （TBS1，TBS2，TBS3）specified does not match the number of range partitions （P1，P2） specified.
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Which is a restriction on a list partitioned table？（）A、You cannot create global range partitioned indexes on the table. B、The optimizer will not execute partition wise joins on the table’s partitions. C、You must include at least one element in the value list of each partition of the table, even if that element is the keyword NULL. D、Partition pruning will not occur during query optimizer if a range of values is included in the query predicate.
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A DBA has been asked to create a table which will contain a substantial amount of detailed sales information for each calendar month and maintain it to contain only the last 12 months. Which of the following methods will facilitate the online removal of the oldest month’s data?（）A、Create an MQT that selects the oldest month of data with the REFRESH IMMEDIATE option.B、Create 12 separate tables, create a view based on all 12, drop the table with the oldest month's data then drop and re- create the view.C、Create a range partitioned table, partitioned by month, and use the ALTER TABLE statement to detach the oldest month and attach storage for new data.D、Create a single table, extract the data to be retained using UNLOAD with a SELECT statement, drop and re-create the table then load only the data to be retained.
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Which two partitioned table maintenance operations support asynchronous Global Index Maintenance inOracle database 12c?（）A、ALTER TABLE SPLIT PARTITIONB、ALTER TABLE MERGE PARTITIONC、ALTER TABLE TRUNCATE PARTITIOND、ALTER TABLE ADD PARTITIONE、ALTER TABLE DROP PARTITIONF、ALTER TABLE MOVE PARTITION
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You have a range-partitioned table in your database. Each partition in the table contains the sales data for a quarter. The partition related to the current quarter is modified frequently and other partitions undergo fewer data manipulations. The preferences for the table are set to their default values. You collect statistics for the table using the following command in regular intervals： SQL EXECUTE DBMS_STATS.GATHER_TABLE_STATS（’SH’，’SALES’，GRANULARITY=’GLOBAL’）； You need statistics to be collected more quickly. What can you do to achieve this？（）A、 Set DYNAMIC_SAMPLING to level 4B、 Set the STATISTICS_LEVEL parameter to BASICC、 Set the INCREMENTAL value to TRUE for the partition tableD、 Increase the value of STALE_PERCENT for the partition table
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You just issued the following statement: ALTER TABLE SALES DROP COLUMN PROFIT. Which of the following choices identifies when the column will actually be removed from Oracle?（）A、Immediately following statement execution B、After the ALTER TABLE DROP UNUSED COLUMNS command is issued C、After the ALTER TABLE SET UNUSED COLUMN command is issued D、After the ALTER TABLE MODIFY command is issued
考题
Which two operations can be flashed back using the Flashback technology？（）A、DROP USER SMITH；B、DROP TABLE EMPLOYEES；C、DROP TABLESPACE USERS；D、ALTER TABLE SALES_REP DROP PARTITION P1；E、ALTER TABLE EMPLOYEES DROP COLUMN DESIG_ID；
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For which two SQL statements can you use the Flashback Table feature to revert a table to its previous state？（）A、UPDATE TABLEB、CREATE CLUSTERC、TRUNCATE TABLED、ALTER TABLE MOVEE、INSERT INTO···VALUESF、ALTER TABLE···DROP COLUMNG、ALTER TABLE···DROP PARTITION
考题
You discover that your Recycle Bin contains two tables with the same name, MY_TABLE. You also have a table named MY_TABLE in your schema. You execute the following statement: FLASHBACK TABLE my_table TO BEFORE DROP RENAME TO my_table2; What will be the result of executing this statement?（）A、One of the tables is recovered from the Recycle Bin using a First In First Out (FIFO) approach.B、One of the tables is recovered from the Recycle Bin using a Last In First Out (LIFO) approach.C、Both the tables are recovered from the Recycle Bin with one table renamed to MY_TABLE2 and the other to a system-generated name.D、None of the tables are recovered from the Recycle Bin, and the statement returns an error.
考题
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（？1-oct - 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？（）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.
考题
Your Oracle10g database contains a table with a TIMESTAMP TO LOCAL TIME ZONE column. There are about two hundred column values for the column. You issued the following statement： SQL ALTER DATABASE SET TIME_ZONE =’Europe/London’； What will be the result of issuing the above statement？（）A、 The statement will be executed successfully， and a new time zone will be set for the database.B、 The statement will be executed successfully， but a new time zone will not be set for the database.C、 The statement will not be executed successfully because the SET TIME_ZONE clause can be used only with the ALTER SESSION statement.D、 The statement will not be executed successfully because the ALTER DATABASE SET TIME_ZONE statement is used only when the database contains no table with the TIMESTAMP TO LOCAL TIME ZONE column.
考题
Which statements are true regarding system-partitioned tables？（） 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.
考题
You created the DEPT table by using the following command： CREATE TABLE scott.dept （deptno NUMBER（3）， dname VARCHAR2（15）， loc VARCHAR2（15） ） STORAGE （INITIAL 100K NEXT 50K MAXEXTENTS 10 PCTINCREASE 5 FREELIST GROUPS 6 FREELISTS 4）；You are required to shrink the DEPT table. While performing the shrink operation， you want to ensure that the recovered space is returned to the tablespace in which the DEPT table is stored. You do not want to shrink the indexes created on the DEPT table. What will you do to shrink the SCOTT.EMP table？（）A、 Issue the ALTER TABLE SCOTT.DEPT SHRINK SPACE COMPACT； statement.B、 Issue the ALTER TABLE SCOTT.DEPT SHRINK SPACE； statement.C、 Issue the ALTER TABLE SCOTT.DEPT SHRINK SPACE CASCADE； statement.D、 You cannot shrink the SCOTT.EMP table.
考题
You created the ORDERS table in your database by using the following code： SQL CREATE TABLE ORDERS （ORDER_DATE TIMESTAMP（0） WITH TIME ZONE）； Then， you inserted data in the ORDERS table and saved it by issuing the following statements：SQL INSERT INTO ORDERS VALUES（’18-AUG-00 10：26：44 PM America/New_York’）； SQL INSERT INTO ORDERS VALUES（’23-AUG-02 12：46：34 PM America/New_York’）； SQL COMMIT； Next， you issued the following statement to change the time zone for the database： SQL ALTER DATABASE SET TIME_ZONE=’Europe/London’； What will be the result of executing the above statement？（） A、 The statement will fail.B、 The statement will be executed successfully， and the new time zone will be set for the database.C、 The statement will be executed successfully， but the new time zone will be set for the current session.D、The statement will be executed successfully， but the new time zone will neither be set for the database nor for a specific session.
考题
Evaluate the following SQL statement used to create the PRODUCTS table： CREATE TABLE products （product_id NUMBER（3） PRIMARY KEY， product_desc VARCHAR2（25）， qtyNUMBER（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.
考题
单选题You discover that your Recycle Bin contains two tables with the same name， MY_TABLE. You also have a table named MY_TABLE in your schema. You execute the following statement： FLASHBACK TABLE my_table TO BEFORE DROP RENAME TO my_table2； What will be the result of executing this statement？（）A
One of the tables is recovered from the Recycle Bin using a First In First Out （FIFO） approach.B
One of the tables is recovered from the Recycle Bin using a Last In First Out （LIFO） approach.C
Both the tables are recovered from the Recycle Bin with one table renamed to MY_TABLE2 and the other to a system-generated name.D
None of the tables are recovered from the Recycle Bin， and the statement returns an error.
考题
单选题View the Exhibit and examine the data in ORDERS_MASTER and MONTHLYjDRDERS tables. What would be the outcome of the above statement？（）A
The ORDERS_MASTER table would contain the ORDERJDs 1 and 2.B
The ORDERS_MASTER table would contain the ORDERJDs 1， 2 and 3.C
The ORDERS_MASTER table would contain the ORDERJDs 1， 2 and 4.D
The ORDERS MASTER table would contain the ORDER IDs 1， 2， 3 and 4.
考题
单选题You created the DEPT table by using the following command： CREATE TABLE scott.dept （deptno NUMBER（3）， dname VARCHAR2（15）， loc VARCHAR2（15） ） STORAGE （INITIAL 100K NEXT 50K MAXEXTENTS 10 PCTINCREASE 5 FREELIST GROUPS 6 FREELISTS 4）；You are required to shrink the DEPT table. While performing the shrink operation， you want to ensure that the recovered space is returned to the tablespace in which the DEPT table is stored. You do not want to shrink the indexes created on the DEPT table. What will you do to shrink the SCOTT.EMP table？（）A
Issue the ALTER TABLE SCOTT.DEPT SHRINK SPACE COMPACT； statement.B
Issue the ALTER TABLE SCOTT.DEPT SHRINK SPACE； statement.C
Issue the ALTER TABLE SCOTT.DEPT SHRINK SPACE CASCADE； statement.D
You cannot shrink the SCOTT.EMP table.
考题
单选题You are performing the shrink operation on the SCOTT.EMP table. You want to perform the same operation on all dependent objects of the SCOTT.EMP table. What is NOT a prerequisite for the operation？（）A
You must enable the row movement on the SCOTT.EMP table.B
You must define the tablespace of the SCOTT.EMP table for automatic segment space management.C
You must use the CASCADE clause in the ALTER TABLE SHRINK SPACE statement.D
You must use the COMPACT clause in the ALTER TABLE SHRINK SPACE statement.
考题
单选题Which is a restriction on a list partitioned table？（）A
You cannot create global range partitioned indexes on the table. B
The optimizer will not execute partition wise joins on the table’s partitions. C
You must include at least one element in the value list of each partition of the table, even if that element is the keyword NULL. D
Partition pruning will not occur during query optimizer if a range of values is included in the query predicate.
考题
单选题You discover that your Recycle Bin contains two tables with the same name, MY_TABLE. You also have a table named MY_TABLE in your schema. You execute the following statement: FLASHBACK TABLE my_table TO BEFORE DROP RENAME TO my_table2; What will be the result of executing this statement?（）A
One of the tables is recovered from the Recycle Bin using a First In First Out (FIFO) approach.B
One of the tables is recovered from the Recycle Bin using a Last In First Out (LIFO) approach.C
Both the tables are recovered from the Recycle Bin with one table renamed to MY_TABLE2 and the other to a system-generated name.D
None of the tables are recovered from the Recycle Bin, and the statement returns an error.
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