单选题The PRODUCTS table has these columns: PRODUCT_ID NUMBER(4) PRODUCT_NAME VARCHAR2(45) PRICE NUMBER(8,2) Evaluate this SQL statement: SELECT * FROM PRODUCTS ORDER BY price, product _ name; What is true about the SQL statement? （）AThe results are not sorted.BThe results are sorted numerically.CThe results are sorted alphabetically.DThe results are sorted numerically and then alphabetically.
单选题
The PRODUCTS table has these columns: PRODUCT_ID NUMBER(4) PRODUCT_NAME VARCHAR2(45) PRICE NUMBER(8,2) Evaluate this SQL statement: SELECT * FROM PRODUCTS ORDER BY price, product _ name; What is true about the SQL statement? （）
A
The results are not sorted.
B
The results are sorted numerically.
C
The results are sorted alphabetically.
D
The results are sorted numerically and then alphabetically.
参考解析
解析：
暂无解析
相关考题：
The PRODUCTS table has these columns:PRODUCT_ID NUMBER(4)PRODUCT_NAME VARCHAR2(45)PRICE NUMBER(8,2)Evaluate this SQL statement:SELECT *FROM PRODUCTSORDER BY price, product _ name;What is true about the SQL statement? （）A. The results are not sorted.B. The results are sorted numerically.C. The results are sorted alphabetically.D. The results are sorted numerically and then alphabetically.
Examine the SQL statements that creates ORDERS table: CREATE TABLE orders(SER_NO NUMBER UNIQUE,ORDER_ID NUMBER,ORDER_DATE DATE NOT NULLSTATUS VARCHARD2(10)CHECK (status IN (‘CREDIT‘,‘CASH‘)),PROD_ID_NUMBERREFERENCES PRODUCTS(PRODUCT_ID),ORD_TOTAL NUMBER,PRIMARY KEY (order id, order date));For which columns would an index be automatically created when you execute the aboveSQL statement? （）A. SER_NOB. ORDER_IDC. STATUSD. PROD_IDE. ORD_TOTALF. Composite index on ORDER_ID and ORDER_DATE
You need to replicate a table from a master to a slave. The master and slave copies of the table will have different number of columns.Which two conditions must be true?() A.Each extra column in the copy with more columns must not have a default valueB.Columns that are common to both versions of the table must be defined in the same order on the master and the slaveC.The slave database cannot have more columns than the master. Only the master database can have more columnsD.Columns that are common to both versions of the table must come first in the table definition, before any additional columns are additional columns are defined on either serverE.The master database cannot have more columns than the slave. Only the slave deatbase can have more columns
The EMPLOYEES table has these columns:Management wants to add a default value to the SALARY column. You plan to alter the table by using this SQL statement:What is true about your ALTER statement?() A. Column definitions cannot be altered to add DEFAULT values.B. A change to the DEFAULT value affects only subsequent insertions to the table.C. Column definitions cannot be altered at add DEFAULT values for columns with a NUMBER data type.D. All the rows that have a NULL value for the SALARY column will be updated with the value 5000.
Examine the SQL statement that creates ORDERS table:CREATE TABLE orders (SER_NO NUMBER UNIQUE, ORDER_ID NUMBER, ORDER_DATE DATE NOT NULL, STATUS VARCHAR2(10) CHECK (status IN (‘CREDIT‘, ‘CASH‘)), PROD_ID NUMBER REFERENCES PRODUCTS(PRODUCT_ID), ORD_TOTAL NUMBER, PRIMARY KEY (order_id, order_date));For which columns would an index be automatically created when you execute the above SQL statement? （）A. SER_NOB. ORDER_IDC. STATUSD. PROD_IDE. ORD_TOTALF. composite index on ORDER_ID and ORDER_DATE
The STUDENT_GRADES table has these columns:The registrar has asked for a report on the average grade point average (GPA) for students enrolled during semesters that end in the year 2000. Which statement accomplish this?（）A.B.C.D.E.F.
Make a function to print an HTML table of r rows and c cols; fill the cells with up to n consecutivenumbers (if n is greater than the produce of r and c, discard the rest). Ensure that all rows have thesame number of columns.
The EMP table contains these columns:EMPLOYEE_ID NUMBER(4)EMPNAME VARCHAR2 (25)SALARY NUMBER(9,2)HIRE_DATE DATEYou query the database with this SQL statement:SELECT empname,hire_date HIREDATE, salaryFROM EMPORDER BY hire_date;How will the results be sorted?（）A.randomlyB.ascending by dateC.descending by dateD.ascending alphabeticallyE.descending alphabetically
In which of the following situations should correlation names be used?（）A、A table referenced in the FROM clause has no indexed column.B、The table referenced in the FROM clause has more than 200 columns.C、Two or more tables in the FROM clause have identical column names.D、The FROM clause contains two or more tables in the SELECT statement.
You need to replicate a table from a master to a slave. The master and slave copies of the table will have different number of columns. Which two conditions must be true?（）A、Each extra column in the copy with more columns must not have a default valueB、Columns that are common to both versions of the table must be defined in the same order on the master and the slaveC、The slave database cannot have more columns than the master. Only the master database can have more columnsD、Columns that are common to both versions of the table must come first in the table definition, before any additional columns are additional columns are defined on either serverE、The master database cannot have more columns than the slave. Only the slave deatbase can have more columns
Evaluate the CREATE TABLE statement： CREATE TABLE products （product_id NUMBER （6） CONSTRAINT prod_id_pk PRIMARY KEY， product_name VARCHAR2 （15））； Which statement is true regarding the PROD_ID_PK constraint？（）A、 It would be created only if a unique index is manually created first.B、 It would be created and would use an automatically created unique index.C、 It would be created and would use an automatically created nonunique index.D、 It would be created and remains in a disabled state because no index is specified in the command.
The EMP table contains these columns: EMPLOYEE_ID NUMBER(4) EMPNAME VARCHAR2 (25) SALARY NUMBER(9,2) HIRE_DATE DATE You query the database with this SQL statement: SELECT empname,hire_date HIREDATE, salary FROM EMP ORDER BY hire_date; How will the results be sorted?（）A、randomlyB、ascending by dateC、descending by dateD、ascending alphabeticallyE、descending alphabetically
Examine the SQL statement that creates ORDERS table: CREATE TABLE orders (SER_NO NUMBER UNIQUE, ORDER_ID NUMBER, ORDER_DATE DATE NOT NULL, STATUS VARCHAR2(10) CHECK (status IN ('CREDIT', 'CASH')), PROD_ID NUMBER REFERENCES PRODUCTS(PRODUCT_ID), ORD_TOTAL NUMBER, PRIMARY KEY (order_id, order_date)); For which columns would an index be automatically created when you execute the above SQL statement? （） A、SER_NOB、ORDER_IDC、STATUSD、PROD_IDE、ORD_TOTALF、composite index on ORDER_ID and ORDER_DATE
单选题The EMP table contains these columns: EMPLOYEE_ID NUMBER(4) EMPNAME VARCHAR2 (25) SALARY NUMBER(9,2) HIRE_DATE DATE You query the database with this SQL statement: SELECT empname,hire_date HIREDATE, salary FROM EMP ORDER BY hire_date; How will the results be sorted?（）ArandomlyBascending by dateCdescending by dateDascending alphabeticallyEdescending alphabetically
多选题View the Exhibit and examine the data in the PRODUCT INFORMATION table. Which two tasks would require subqueries？ （）Adisplaying the minimum list price for each product statusBdisplaying all supplier IDs whose average list price is more than 500Cdisplaying the number of products whose list prices are more than the average list priceDdisplaying all the products whose minimum list prices are more than the average list price of products having the product status orderableEdisplaying the total number of products supplied by supplier 102071 and having product status OBSOLETE
多选题You need to replicate a table from a master to a slave. The master and slave copies of the table will have different number of columns. Which two conditions must be true?（）AEach extra column in the copy with more columns must not have a default valueBColumns that are common to both versions of the table must be defined in the same order on the master and the slaveCThe slave database cannot have more columns than the master. Only the master database can have more columnsDColumns that are common to both versions of the table must come first in the table definition, before any additional columns are additional columns are defined on either serverEThe master database cannot have more columns than the slave. Only the slave deatbase can have more columns
单选题The EMPLOYEES table has these columns: LAST NAME VARCHAR2(35) SALARY NUMBER(8,2) HIRE_DATE DATE Management wants to add a default value to the SALARY column. You plan to alter the table by using this SQL statement: ALTER TABLE EMPLOYEES MODIFY ( SALARY DEFAULT 5000); What is true about your ALTER statement?（）AColumn definitions cannot be altered to add DEFAULT values.BA change to the DEFAULT value affects only subsequent insertions to the table.CColumn definitions cannot be altered at add DEFAULT values for columns with a NUMBER data type.DAll the rows that have a NULL value for the SALARY column will be updated with the value 5000.
单选题The EMP table contains these columns: EMPLOYEE_ID NUMBER(4) EMPNAME VARCHAR2 (25) SALARY NUMBER(9,2) HIRE_DATE DATE You query the database with this SQL statement: SELECT empname,hire_date HIREDATE, salary FROM EMP ORDER BY hire_date; How will the results be sorted?（）ArandomlyBascending by dateCdescending by dateDascending alphabeticallyEdescending alphabetically
多选题Examine the SQL statements that creates ORDERS table: CREATE TABLE orders (SER_NO NUMBER UNIQUE, ORDER_ID NUMBER, ORDER_DATE DATE NOT NULL STATUS VARCHARD2(10) CHECK (status IN ('CREDIT','CASH')), PROD_ID_NUMBER REFERENCES PRODUCTS(PRODUCT_ID), ORD_TOTAL NUMBER, PRIMARY KEY (order id, order date)); For which columns would an index be automatically created when you execute the aboveSQL statement? （）ASER_NOBORDER_IDCSTATUSDPROD_IDEORD_TOTALFComposite index on ORDER_ID and ORDER_DATE
单选题The EMPLOYEES table has these columns:LAST_NAME VARCHAR2(35) SALARY NUMBER(8,2) HIRE_DATE DATEManagement wants to add a default value to the SALARY column. You plan to alter the table by using this SQL statement:ALTER TABLE EMPLOYEES MODIFY (SALARY DEFAULT 5000);Which is true about your ALTER statement?（）AColumn definitions cannot be altered to add DEFAULT values.BA change to the DEFAULT value affects only subsequent insertions to the table.CColumn definitions cannot be altered to add DEFAULT values for columns with a NUMBER data type.DAll the rows that have a NULL value for the SALARY column will be updated with the value 5000.
单选题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.
多选题Examine the SQL statement that creates ORDERS table: CREATE TABLE orders (SER_NO NUMBER UNIQUE, ORDER_ID NUMBER, ORDER_DATE DATE NOT NULL, STATUS VARCHAR2(10) CHECK (status IN ('CREDIT', 'CASH')), PROD_ID NUMBER REFERENCES PRODUCTS(PRODUCT_ID), ORD_TOTAL NUMBER, PRIMARY KEY (order_id, order_date)); For which columns would an index be automatically created when you execute the above SQL statement? （）ASER_NOBORDER_IDCSTATUSDPROD_IDEORD_TOTALFcomposite index on ORDER_ID and ORDER_DATE
多选题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？（）APartitions of PURCHASE_ORDER_ITEMS have system-generated names.BBoth PURCHASE_ORDERS and PURCHASE_ORDER_ITEMS tables are created with four partitions each.CPartitions of the PURCHASE_ORDER_ITEMS table exist in the same tablespaces as the partitions of the PURCHASE_ORDERS table.DThe PURCHASE_ORDER_ITEMS table inherits the partitioning key from the parent table by automatically duplicating the key columns.EPartition maintenance operations performed on the PURCHASE_ORDER_ITEMS table are automatically reflected in the PURCHASE_ORDERS table.
单选题Evaluate the CREATE TABLE statement： CREATE TABLE products （product_id NUMBER （6） CONSTRAINT prod_id_pk PRIMARY KEY， product_name VARCHAR2 （15））； Which statement is true regarding the PROD_ID_PK constraint？（）A It would be created only if a unique index is manually created first.B It would be created and would use an automatically created unique index.C It would be created and would use an automatically created nonunique index.D It would be created and remains in a disabled state because no index is specified in the command.
多选题Examine the SQL statement that creates ORDERS table: CREATE TABLE orders (SER_NO NUMBER UNIQUE, ORDER_ID NUMBER, ORDER_DATE DATE NOT NULL, STATUS VARCHAR2(10) CHECK (status IN ('CREDIT', 'CASH')), PROD_ID NUMBER REFERENCES PRODUCTS(PRODUCT_ID), ORD_TOTAL NUMBER, PRIMARY KEY (order_id, order_date)); For which columns would an index be automatically created when you execute the above SQL statement? （）ASER_NOBORDER_IDCSTATUSDPROD_IDEORD_TOTALFcomposite index on ORDER_ID and ORDER_DATE
单选题Management has asked you to calculate the value 12*salary* commission_pct for all the employees in the EMP table. The EMP table contains these columns: LAST NAME VARCNAR2(35) NOT NULL SALARY NUMBER(9,2) NOT NULL COMMISION_PCT NUMBER(4,2) Which statement ensures that a value is displayed in the calculated columns for all employees?（）ASELECT last_name, 12*salary* commission_pct FROM emp;BSELECT last_name, 12*salary* (commission_pct,0) FROM emp;CSELECT last_name, 12*salary*(nvl(commission_pct,0)) FROM emp;DSELECT last_name, 12*salary*(decode(commission_pct,0)) FROM emp;
单选题You need to create a table named ORDERS that contain four columns: 1. an ORDER_ID column of number data type 2. aCUSTOMER_ID column of number data type 3. an ORDER_STATUS column that contains a character data type 4. aDATE_ORDERED column to contain the date the order was placed. When a row is inserted into the table, if no value is provided when the order was placed, today's date should be used instead. Which statement accomplishes this?（）ACREATE TABLE orders ( order_id NUMBER (10), customer_id NUMBER (8), order_status VARCHAR2 (10), date_ordered DATE = SYSDATE);BCREATE TABLE orders ( order_id NUMBER (10), customer_id NUMBER (8), order_status VARCHAR2 (10), date_ordered DATE DEFAULT SYSDATE);CCREATE OR REPLACE TABLE orders ( order_id NUMBER (10), customer_id NUMBER (8), order_status VARCHAR2 (10), date_ordered DATE DEFAULT SYSDATE);DCREATE OR REPLACE TABLE orders ( order_id NUMBER (10), customer_id NUMBER (8), order_status VARCHAR2 (10), date_ordered DATE = SYSDATE);ECREATE TABLE orders ( order_id NUMBER (10), customer_id NUMBER (8), order_status NUMBER (10), date_ordered DATE = SYSDATE);FCREATE TABLE orders ( order_id NUMBER (10), customer_id NUMBER (8), order_status NUMBER (10), date_ordered DATE DEFAULT SYSDATE);