问题：单选题Given the following function: CREATE FUNCTION emplist （ ） RETURNS TABLE ( id CHAR(6) , firstname VARCHAR(12) , lastname VARCHAR(15) ) LANGUAGE SQL BEGIN ATOMIC RETURN SELECT EMPNO, FIRSTNME, LASTNAME FROM EMPLOYEE WHERE WORKDEPT IN ('A00', 'B00'); END ...
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问题：单选题Given the following requirements:Create a table named TESTTAB, which has an identity column named ACTIVITYNO. Define the identity column to generate the values for the column by default. Start the values at 10 and increment by 10. Make the identity col...
问题：单选题Which of the following privileges permits a user to update the comment on a sequence?（）A CONTROLB UPDATEC USAGED ALTER...
问题：单选题Which of the following is a characteristic of a schema?（）A Foreign key references cannot cross schema boundaries.B A DB2 user must be created before a schema with the same name can be created.C If no schema is specified when an object is created, the d...
问题：单选题Which of the following tools is used to view historical information about tasks, database changes, messages, and notifications?（）A JournalB Task CenterC Control CenterD Activity Monitor...
问题：单选题Which of the following DB2 products are required on an iSeries or System i server to enable an application running on that server to retrieve data from a DB2 database on a Linux server?（）A DB2 for i5/OSB DB2 Runtime ClientC DB2 Connect Enterprise Editi...
问题：单选题Application A holds an Update lock on a single row and application B is trying to read that row. If both applications are using isolation level UR, which of the following will occur?（）A Application B will read the row.B Applications A and B will cause ...
问题：单选题A user invoking a user-defined function requires which DB2 privilege?（）A CALLB USAGEC EXECUTED REFERENCES...
问题：单选题How does DB2 protect the integrity of indexes when data is updated?（）A Locks are acquired on the data.B Locks are acquired on index keys.C Locks are acquired on index pages.D Locks are acquired on index pointers....
问题：单选题Which of the following is a typical data warehouse query?（）A What is this customers address?B Does this customer have any unpaid bills?C What is the balance in this customers account?D What are the total sales for each of the last 6 months?...
问题：单选题A view is created with the following statement:CREATE VIEW v1 AS SELECT col1, col2, col3 FROM t1 WHERE col4 1000 ; When will DB2 access the data from table T1 for view V1?（）A When view V1 is createdB Each time the REFRESH VIEW v1 statement is executed...
问题：单选题If a unique constraint is defined on column COL1 of table TAB1, what are the characteristics of COL1?（）A COL1 will accept NULL values and can be referenced in another table's foreign key specification.B COL1 will not accept NULL values and cannot be re...
问题：单选题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 ...
问题：单选题Which tool must be used to analyze all of the database operations performed by an application against a DB2 for i5/OS database?（）A Visual ExplainB Activity MonitorC SQL Performance MonitorD DB2 Performance Monitor...
问题：单选题The following triggers were defined for table TAB1 in the order shown:CREATE TRIGGER trig_a AFTER UPDATE ON tab1 FOR EACH ROW UPDATE sale_tab SET sale_date = CURRENT DATE; CREATE TRIGGER trig_b AFTER UPDATE ON tab1 FOR EACH STATEMENT UPDATE invoice_tab...
问题：单选题Which of the following best describes the lock protection provided by DB2 for the current row of a cursor?（）A The cursor is only protected from updates and deletes by concurrent applications.B The row is only protected from positioned updates and delet...
问题：单选题A sequence was created with the DDL statement shown below:CREATE SEQUENCE my_sequence CACHE 10 ORDER The following statements are successfully executed in sequence through separate database connections: CONNECTION1 - VALUES NEXT VALUE FOR my_sequence I...
问题：单选题Given the following table definition: STOCK: item VARCHAR(30) status CHAR(1) quantity INT price DEC(7,2) If items are indicated to be out of stock by setting STATUS to NULL and QUANTITY and PRICE to zero, which of the following statements would be used...
问题：单选题Which of the following is a characteristic of a sequence?（）A A sequence will never generate duplicate valuesB The MAXVALUE of a sequence can be equal to the MINVALUEC It is not possible to create a sequence that generates a constant since the INCREMENT...
问题：单选题Which of the following best describes how locks are used in DB2?（）A To maintain control of updated rows for commit processingB To ensure only committed changes are altered by another applicationC To allow two applications to update the same row of data...
