当前分类: IBM(000-730)
问题:单选题If an application issues the same query more than once in the same Unit of Work, which isolation level will not permit this application to see additional rows inserted by other applications?()A Read Stability (RS)B Repeatable Read (RR)C Uncommitted Rea...
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问题:单选题Given the following two tables: TAB1 C1 C2 1 Antarctica 2 Africa 3 Asia 4 Australia TAB2 CX CY 5 Europe 6 North America 7 South America Which of the following SQL statements will insert all rows found in table TAB2 into table TAB1?()A INSERT INTO tab1 ...
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 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Given that tables T1 and T2 contain the following rows: Table T1: C1 C2 1 4 1 3 1 2 Table T2: C1 C2 1 1 1 2 1 3 Which of the following queries will return only those rows that exist in both T1 and T2?()A SELECT * FROM t1 UNION SELECT * FROM t2B SELECT ...
问题:单选题The opening of cursor CSR01 produces the following result set: STUDENT LASTNM FIRSTNM CLASSNO 123 Brown John T100 213 Bailey James T100 312 Carter Arlene T210 465 Chas Devon T305 546 Davis Steven T405 If this Fetch statement is executed: FETCH csr01 IN...
问题:A DRDA host database resides on a z/OS or an i5/OS system an...
问题:单选题A "trusted" client needs to communicate with a server that has been configured to use CLIENT authentication. Which of the following will be used to verify passwords?()A User ID/password fileB Communications layerC Client applicationsD Operating system...
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 database objects can be used to raise an error if a table is updated?()A PackageB TriggerC Stored ProcedureD Informational Constraint...
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 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Which product must be installed on z/OS to allow a COBOL program running on that machine to access data on a remote DB2 for z/OS server?()A DB2 for z/OSB DB2 Run-Time Client for z/OSC DB2 Connect Enterprise Edition for z/OSD z/OS Application Connectivi...
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 ...