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单选题
A table was created using the following DDL: CREATE TABLE employee (id SMALLINT NOT NULL, name VARCHAR(9), dept SMALLINT CHECK (dept BETWEEN 10 AND 100), job CHAR(10) CHECK (job IN ('Sales','Mgr','Clerk')), hiredate DATE, salary DECIMAL(7,2), comm DECIMAL(7,2), PRIMARY KEY (id), CONSTRAINT yearsal CHECK (YEAR(hiredate) > 2004 OR salary > 80500) ); Which of the following INSERT statements will fail?()
A

INSERT INTO employee VALUES (2, 'Smith', 80, 'Mgr', '09/03/2006', 80000, NULL)

B

INSERT INTO employee VALUES (4, 'Smith', 86, 'Mgr', '07/14/2003', 90000, NULL)

C

INSERT INTO employee VALUES (1, 'Smith', 55, 'Sales', '07/14/2003', NULL, NULL)

D

INSERT INTO employee VALUES (3, 'Smith', 33, 'Analyst', '11/26/2006', 90000, NULL)


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更多 “单选题A table was created using the following DDL: CREATE TABLE employee (id SMALLINT NOT NULL, name VARCHAR(9), dept SMALLINT CHECK (dept BETWEEN 10 AND 100), job CHAR(10) CHECK (job IN ('Sales','Mgr','Clerk')), hiredate DATE, salary DECIMAL(7,2), comm DECIMAL(7,2), PRIMARY KEY (id), CONSTRAINT yearsal CHECK (YEAR(hiredate) 2004 OR salary 80500) ); Which of the following INSERT statements will fail?()A INSERT INTO employee VALUES (2, 'Smith', 80, 'Mgr', '09/03/2006', 80000, NULL)B INSERT INTO employee VALUES (4, 'Smith', 86, 'Mgr', '07/14/2003', 90000, NULL)C INSERT INTO employee VALUES (1, 'Smith', 55, 'Sales', '07/14/2003', NULL, NULL)D INSERT INTO employee VALUES (3, 'Smith', 33, 'Analyst', '11/26/2006', 90000, NULL)” 相关考题
考题 An application needs a table for each connection that tracks the ID and Name of all items previously ordered and committed within the connection. The table also needs to be cleaned up and automatically removed each time a connection is ended. Assuming the ITEMS table was created with the following SQL statement:CREATE TABLE items item_no INT, item_name CHAR(5), item_qty INT)Which of the following SQL statements will provide the table definition that meets the specified requirements?()A.DECLARE GLOBAL TEMPORARY TABLE tracker AS (SELECT item_no, item_name FROM items) WITH NO DATA ON COMMIT PRESERVE ROWS ON DISCONNECT DROP TABLEB.DECLARE GLOBAL TEMPORARY TABLE tracker AS (SELECT item_no, item_name FROM items) WITH NO DATA ON COMMIT PRESERVE ROWSC.CREATE TABLE systmp.tracker AS (SELECT item_num, item_name FROM items) WITH NO DATA ON COMMIT PRESERVE ROWSD.CREATE TABLE tracker AS (SELECT item_num, item_name FROM items) ON COMMIT PRESERVE ROWS ON DISCONNECT DROP TABLE

考题 Given the following DDL for the PARTS table:CREATE TABLE parts (part_no INT(9) NOT NULL, part_name VARCHAR(24), part_remain INT(9));All part numbers entered will be different and all rows should be displayed in order of increasing part numbers whenever the table is queried. Which of the following create index statements will meet this criteria and require the least amount of storage for the index object?()A.CREATE UNIQUE INDEX idx_partno ON parts(part_no)B.CREATE UNIQUE INDEX idx_partno ON parts(part_name ASC)C.CREATE UNIQUE INDEX idx_partno ON parts(part_name, part_no ASC)D.CREATE UNIQUE INDEX idx_partno ON parts(part_no, part_name ASC)

考题 SQL数据定义语言DDL,并不包括()语句。 A、create tableB、updateC、drop tableD、alter table

考题 Examine the command that is used to create a table: SQL CREATE TABLE orders(oid NUMBER(6) PRIMARY KEY, odate DATE, ccode NUMBER (6), oamtNUMBER(10,2)) TABLESPACE users; Which two statements are true about the effect of the above command()A、A CHECK constraint is created on the OID column.B、A NOT NULL constraint is created on the OID column.C、The ORDERS table is the only object created in the USERS tablespace.D、The ORDERS table and a unique index are created in the USERS tablespace.E、The ORDERS table is created in the USERS tablespace and a unique index is created on the OID columnin the SYSTEM tablespace.

考题 While designing your database, you have created the EMPLOYEES table as an index-organized table (IOT). You want to create a bitmap index on the JOB_ID column to make queries faster. Which task must have been completed so that you are able to create the bitmap index?() A、A primary key must have been created.B、A mapping table must have been created.C、An overflow tablespace must have been specified.D、The PCTTHRESHOLD option must have been specified.

考题 Given the following DDL for the PARTS table:CREATE TABLE parts (part_no INT(9) NOT NULL, part_name VARCHAR(24), part_remain INT(9));All part numbers entered will be different and all rows should be displayed in order of increasing part numbers whenever the table is queried. Which of the following create index statements will meet this criteria and require the least amount of storage for the index object?()A、CREATE UNIQUE INDEX idx_partno ON parts(part_no)B、CREATE UNIQUE INDEX idx_partno ON parts(part_name ASC)C、CREATE UNIQUE INDEX idx_partno ON parts(part_name, part_no ASC)D、CREATE UNIQUE INDEX idx_partno ON parts(part_no, part_name ASC)

考题 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.

考题 An application needs a table for each connection that tracks the ID and Name of all items previously ordered and committed within the connection. The table also needs to be cleaned up and automatically removed each time a connection is ended. Assuming the ITEMS table was created with the following SQL statement: CREATE TABLE items item_no INT, item_name CHAR(5), item_qty INT) Which of the following SQL statements will provide the table definition that meets the specified requirements?()A、DECLARE GLOBAL TEMPORARY TABLE tracker AS (SELECT item_no, item_name FROM items) WITH NO DATA ON COMMIT PRESERVE ROWS ON DISCONNECT DROP TABLEB、DECLARE GLOBAL TEMPORARY TABLE tracker AS (SELECT item_no, item_name FROM items) WITH NO DATA ON COMMIT PRESERVE ROWSC、CREATE TABLE systmp.tracker AS (SELECT item_num, item_name FROM items) WITH NO DATA ON COMMIT PRESERVE ROWSD、CREATE TABLE tracker AS (SELECT item_num, item_name FROM items) ON COMMIT PRESERVE ROWS ON DISCONNECT DROP TABLE

考题 Which two operations can be performed on an external table()A、Create a view on the table.B、Create an index on the table.C、Create a synonym on the table.D、Add a virtual column to the table.E、Update the table using the UPDATE statement.F、Delete rows in the table using the DELETE command.

考题 Examine the following steps performed on a database instance: 1. The DBA grants the CREATE TABLE system privilege to the SKD user with ADMIN OPTION. 2. The SKD user creates a table. 3. The SKD user grants the CREATE TABLE system privilege to the HR user. 4. The HR user creates a table. 5. The DBA revokes the CREATE TABLE system privilege from SKD.  Which statement is true after step 5 isperformed()A、The table created by SKD is not accessible and SKD cannot create new tables.B、The tables created by SKD and HR remain, but both cannot create new tables.C、The table created by HR remains and HR still has the CREATE TABLE system privilege.D、The table created by HR remains and HR can grant the CREATE TABLE system privilege to other users.

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 Examine the following commands executed in your database: SQL ALTER SESSION RECYCLEBIN=ON; Session altered  SQL  CREATE TABLE emp TABLESPACE tbsfd AS SELECT * FROM hr.employees;  Table created.  Further, you executed the following command to drop the table:  SQL DROP TABLE emp;Table dropped.  What happens in this scenario?()A、The table is moved to the SYSAUX tablespace.B、The table is moved to the SYSTEM tablespace.C、The table is removed from the database permanently.D、The table is renamed and remains in the TBSFD tablespace.

考题 Which two operations can be performed on an external table()A、Create a view on the table.B、Create an index on the table.C、Create a synonym on the table.D、Add a virtual column to the table.E、Update the table using the UPDATE statement.F、Delete rows in the table using the DELETE command

考题 Your company uses a SQL Server 2005 database. Customer data from your trading partners is imported into the Customers table every night. You need to ensure that the customer record is updated if it already exists in the Customers table. If the record does not exist, the data needs to be inserted into the Customers table. What should you do?()A、 Create a FOR trigger. B、 Create an INSTEAD OF trigger. C、 Create an AFTER trigger. D、 Create a DDL trigger.

考题 单选题View the Exhibit and examine the structure of the EMP table. You executed the following command to add a primary key to the EMP table:   ALTER TABLE emp   ADD CONSTRAINT emp_id_pk  PRIMARY KEY (emp_id)   USING INDEX emp_id_idx;   Which statement is true regarding the effect of the command?()A  The PRIMARY KEY is created along with a new index.B  The PRIMARY KEY is created and it would use an existing unique index.C  The PRIMARY KEY would be created in a disabled state because it is using an existing index.D  The statement produces an error because the USING clause is permitted only in the CREATE TABLE command.

考题 单选题While creating a database using Database Configuration Assistant tool, you created a database default temporary tablespace. Which activity would cause the default temporary tablespace of the database to be used?()A the CREATE TABLE .. commandB sorting of the SYSTEM tablespace’s dataC sorting of data required by recursive SQL statementsD the CREATE TABLE .. ORGANIZATION EXTERNAL .. commandE sorting of data if the users have not been allocated temporary tablespace explicitlyF sorting of data if the users have been allocated temporary tablespace explicitly

考题 单选题Your company uses a SQL Server 2005 database. Customer data from your trading partners is imported into the Customers table every night. You need to ensure that the customer record is updated if it already exists in the Customers table. If the record does not exist, the data needs to be inserted into the Customers table. What should you do?()A  Create a FOR trigger. B  Create an INSTEAD OF trigger. C  Create an AFTER trigger. D  Create a DDL trigger.

考题 单选题Examine the following steps performed on a database instance:  1:The DBA grants the CREATE TABLE system privilege to the SKD user with ADMIN OPTION.  2:The SKD usercreates a table.  3:The SKD user grants theCREATETABLE system privilege to the HR user.  4:The HR user creates a table.  5:The DBA revokes the CREATE TABLE system privilege from SKD.  Which statement is true after step 5 is performed()A The table created by SKD isnot accessibleand SKD cannot create new tables.B The tables created by SKD and HR remain, but both cannot create new tables.C The table created by HR remains and HR still has the CREATE TABLE system privilege.D The table created by HR remains and HR can grant the CREATE TABLE system privilege to other users.

考题 单选题Examine the commands executed in the following sequence:  1:SQL CREATE ROLE mgrrole;  2:SQL GRANT create user,select any table,connect,resource TO mgrrole;  3:SQL GRANT select,update ON sh.sales TO mgrrole;  4:SQL CREATE ROLE ceo IDENTIFIED BY boss;  5:SQL GRANT mgrrole,drop any table,create any directory TO ceo;  6:SQL GRANT ceo TO mgrrole;  Which statement is true about the above commands()A The commands execute successfully.B Command 6 produces an error because of circular role grant.C Command 5 produces an error because a role cannot be granted to another role.D Command 3 produces an error because the MGRROLE role already contains system privileges.E The table created by HR remains and HR still has the CREATE TABLE system privilege.F The table created by HR remains and HR can grant the CREATE TABLE system privilege to other users.

考题 多选题Examine the command that is used to create a table: SQL CREATE TABLE orders(oid NUMBER(6) PRIMARY KEY, odate DATE, ccode NUMBER (6), oamtNUMBER(10,2)) TABLESPACE users; Which two statements are true about the effect of the above command()AA CHECK constraint is created on the OID column.BA NOT NULL constraint is created on the OID column.CThe ORDERS table is the only object created in the USERS tablespace.DThe ORDERS table and a unique index are created in the USERS tablespace.EThe ORDERS table is created in the USERS tablespace and a unique index is created on the OID columnin the SYSTEM tablespace.

考题 单选题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.

考题 单选题Which describes the default behavior when you create a table? ()A The table is accessible to all users.B Tables are created in the public schema.C Tables are created in your schema.D Tables are created in the DBA schema.E You must specify the schema when the table is created.

考题 单选题You have created an Oracle 10g database named SALES, which will be used by an application named SalesOrders. Users of the SalesOrders application complain that application response time is slow when they generate reports. The SalesOrders application accesses a table that contains 10 million rows. You decide to create an index on this table using the NOLOGGING option so that the index creation process is completed in the least amount of time. Which of the following is NOT true about an index created with the NOLOGGING option?()A  The index can be changed from NOLOGGING to LOGGINGB  The index cannot be recovered even in the ARCHIVELOG mode.C  The index can only be created if the base table is created with the NOLOGGING option.D  The index can be recovered if you perform a backup after the CREATE INDEX statement.

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 want to create a temporary table while executing a procedure in a form. Which statement is true?()A You cannot create a table form within Forms. B You must use the FORMS_DDL built-in to create the table. C You must use the DBMS_DYNAMIC_DDL package to create the table. D You can write the CREATE TABLE statement directly into the trigger.

考题 单选题Examine the following commands executed in your database: SQL ALTER SESSION RECYCLEBIN=ON; Session altered  SQL  CREATE TABLE emp TABLESPACE tbsfd AS SELECT * FROM hr.employees;  Table created.  Further, you executed the following command to drop the table:  SQL DROP TABLE emp;Table dropped.  What happens in this scenario?()A The table is moved to the SYSAUX tablespace.B The table is moved to the SYSTEM tablespace.C The table is removed from the database permanently.D The table is renamed and remains in the TBSFD tablespace.

考题 单选题Examine the following steps performed on a database instance: 1. The DBA grants the CREATE TABLE system privilege to the SKD user with ADMIN OPTION. 2. The SKD user creates a table. 3. The SKD user grants the CREATE TABLE system privilege to the HR user. 4. The HR user creates a table. 5. The DBA revokes the CREATE TABLE system privilege from SKD.  Which statement is true after step 5 isperformed()A The table created by SKD is not accessible and SKD cannot create new tables.B The tables created by SKD and HR remain, but both cannot create new tables.C The table created by HR remains and HR still has the CREATE TABLE system privilege.D The table created by HR remains and HR can grant the CREATE TABLE system privilege to other users.