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Code d'Examen: C2090-733
Nom d'Examen: IBM (DB2 9 Application Developer)
Questions et réponses: 140 Q&As
Code d'Examen: A2180-373
Nom d'Examen: IBM (Assessment: IBM WebSphere Business Monitor V6.2, Solution Development)
Questions et réponses: 112 Q&As
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NO.1 Given the following table definition:CREATE TABLE staff ( id SMALLINT NOT NULL,
name
VARCHAR(9), dept SMALLINT, job CHAR(5)) Assuming that the following statements
execute
successfully:Dim cmdStaff As DB2Command = cnDb2.CreateCommand()
cmdStaff.CommandText =
"SELECT name FROM staff WHERE (job = @job)" Which of the following is the correct way
to provide a
value for the parameter marker used?
A. cmdStaff.Parameters.Add("@job", "Mgr", CType(5, Char))
B. cmdStaff.Parameters.Add("@job", "Mgr", DB2Type.Char, 5)
C. cmdStaff.Parameters.Add(New DB2Parameter("@job", CType(5, Char))
cmdStaff.Parameters("@job").Value = "Mgr"
D. cmdStaff.Parameters.Add(New DB2Parameter("@job", DB2Type.Char, 5)
cmdStaff.Parameters("@job").Value ="Mgr"
Answer: D
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NO.2 An SQL procedure has been developed with several inline SQL PL statements
encapsulated in a
dynamic compound SQL statement. The procedure had been tested and performed well.
After making a
change to the last SQL statement the procedure not only failed to complete, but did not
produce output
from any statements which were not modified. What is the best explanation for this behavior?
A. The dynamic compound SQL is atomic.
B. The procedure doesn't have any savepoints.
C. The procedure has not been correctly re-cataloged.
D. The dynamic compound SQL individual statements are logically dependent on each other.
Answer: A
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NO.3 Which of the following is a characteristic of an application that uses a Distributed Unit of
Work
(DUOW)?
A. A single transaction can only read and/or modify data stored on one database server.
B. Multiple transactions can only read and/or modify data stored on one database server.
C. A single transaction can read and/or modify data stored across multiple database servers.
D. Multiple transactions can read and/or modify data stored on multiple database servers
provided each
transaction only accesses a single server.
Answer: C
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NO.4 Given following table:
EMP
EMPNO NAME DEPTNO SALARY
=====
==== ======
======
0010 JOSH D95 30000
0020 JENNA D98 25000
0030 DYLAN
D95 10000
0040 TRACY D90 33000
and the following trigger definition:CREATE TRIGGER track_chgsAFTER UPDATE OF
salary, name,
empno ON emp REFERENCING NEW_TABLE AS ntable FOR EACH STATEMENT MODE
DB2SQLBEGIN ATOMIC INSERT INTO changes SELECT empno, CURRENT TIMESTAMP
FROM
ntable; END; After executing the following SQL statements:DELETE FROM changes;
UPDATE emp SET
deptno = 'D98' WHERE deptno = 'D95'; INSERT INTO emp VALUES('0050', 'KEN', 'D90',
35000);
UPDATE emp SET salary = salary - 500 WHERE salary > 35000;UPDATE emp SET salary =
salary +
1000 WHERE salary <= 25000;What value will be returned by this query?SELECT count(*)
FROM
changes
A. 2
B. 3 C. 4
D. 6
Answer: A
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NO.5 Table EMPLOYEE contains the following rows: EMPNO FIRSTNME LASTNAME
WORKDEPT
000010.CHRISTINE HAAS A00 000020 MICHAEL THOMPSON B01 000030 SALLY KWAN
C01 The
isolation level for Application 1 is set to CS and autocommit is disabled. The isolation level for
Application
2 is set to CS and the autocommit is enabled. The following statements are executed in
sequence:
Application 1:
DECLARE c1 CURSOR FOR SELECT * FROM employee ORDER BY empno OPEN C1
FETCH C1
FETCH C1 Application 2:
UPDATE employee SET lastname = 'MILLFORD' WHERE empno = '000020' Which of the
following
statements is correct?
A. The UPDATE succeeds because Application 2 runs with autocommit enabled so no row
level locks are
necessary for the update.
B. The UPDATE succeeds because Application 1 holds a row level lock that is compatible
with the lock
required by Application 2.
C. The UPDATE fails because Application 1 holds a row level read lock that is in conflict with
the lock
required by Application 2.C.
D. The UPDATE fails because the row level locks held by Application 1 have been escalated
to table lock
so updates by other connections are disallowed.
Answer: B
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NO.6 Parameter markers are NOT permitted for which of the following statements?
A. CALL
B. DELETE C. EXECUTE IMMEDIATE
D. SET CURRENT SQLID
Answer: C
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NO.7 Which of the following restrictions pertains to embedded SQL external routines?
A. Environment variables with names that start with 'DB2' are not allowed.
B. Executing statements or commands that are connection related is not allowed.
C. Environment variable values that were set before the DB2 database manager is started
are not
available.
D. When returning result sets from external nested stored procedures, a cursor cannot be
opened with
the same name onmultiple nesting levels.
Answer: B
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NO.8 An application running against a DB2 for AIX database needs to execute the following
query:SELECT
t2.c2, t1.c3 FROM t1 INNER JOIN t2 ON t1.c1 = t2.c1 If table T1 resides in the DB2 for AIX
database and
table T2 resides in a DB2 for i5/OS database, which of the followingDB2 object types must
the identifier
T2 represent in order for this SQL statement to run successfully?
A. ALIAS
B. NICKNAME
C. SERVER TABLE
D. TABLE WRAPPER
Answer: B
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