IBM DB2 9.7 Application Development 認定 C2090-543 試験問題:
1. Given the two tables shown below: TAB1 LETTER GRADE A 80 B 70 C 60 TAB2 LETTER GPA A 4 C 2 D 1 and the successful execution of the following query: SELECT * FROM tab1 FULL OUTER JOIN tab2 ON tab1.letter = tab2.letter; How many rows will be returned?
A) 4
B) 6
C) 2
D) 3
2. Click the Exhibit button.
UPDATE DBM CFG USING FEDERATED YES;
db2stop;
db2start;
CONNECT TO test;
CREATE WRAPPER oledb LIBRARY 'db2oledb';
CREATE SERVER nwind
WRAPPER oledb
OPTIONS (CONNECTSTRING 'Provider=Microsoft.Jet.OLEDB.4.0;
Data Source=f:Northwind.mdb;', COLLATING_SEQUENCE 'Y');
CREATE FUNCTION nwind.customers()
RETURNS TABLE (customerid CHAR(5),
companynameVARCHAR(40),
contactnameVARCHAR(30),
contacttitleVARCHAR(30),
address VARCHAR(60),
city VARCHAR(15),
region VARCHAR(15),
postalcodeVARCHAR(15),
country VARCHAR(24),
phone VARCHAR(24),
fax VARCHAR(24))
LANGUAGE OLEDB
EXTERNAL NAME 'nwind!customers';
COMMIT;
CONNECT RESET;
A DB2 Command Line Processor script file containing the commands and statements shown in
the exhibit was executed successfully.
Which statement can be used to verify that an OLE DB table function designed to retrieve data
from the CUSTOMERS table of the NORTHWIND Microsoft Access database was created
successfully?
A) SELECTcompanyname FROM oledb.nwind.customers()
B) SELECTcompanyname FROM TABLE (nwind.customers()) AS t
C) SELECTcompanyname FROM TABLE (oledb.nwind.customers()) AS t
D) SELECTcompanyname FROM nwind.customers()
3. While developing a Java JDBC application, you use the set of statements shown below:
Connection con;
PreparedStatementpstmt;
intnumUpd;
pstmt= con.prepareStatement("UPDATE EMPLOYEE SET PHONENO='4657' WHERE
EMPNO=?");
pstmt.setString(0, "000010");
numUpd= pstmt.executeUpdate();
pstmt.close();
Assuming a connection has already been established, which statement is true?
A) Statements will execute successfully, but will not update rows in the database.
B) Statements will give a syntax error.
C) Statements will give a runtime exception.
D) Statements will be executed successfully.
4. Which return codes will be returned by SQLFetch() when there are no more records to be retrieved in a result data set?
A) SQL_SUCCESS
B) SQL_NO_DATA_FOUND
C) SQL_WARNING
D) SQL_NO_MORE_DATA
5. Given the table shown below:
COURSES
ID CODE NAME
1 ECE100 Operating Systems
2 ECE101 Programming Languages
User USER1 executes the following statements:
DECLARE GLOBAL TEMPORARY TABLE tempcourses
LIKE db2user.courses
ON COMMIT PRESERVE ROWS;
INSERT INTO session.tempcourses SELECT * FROM db2user.courses;
INSERT INTO session.tempcourses VALUES (3, 'ECE102', 'Databases');
SELECT max(ID) FROM db2user.courses;
User USER2 executes the following statements:
DECLARE GLOBAL TEMPORARY TABLE tempcourses
LIKE db2user.courses;
ON COMMIT PRESERVE ROWS;
INSERT INTO session.tempcourses SELECT * FROM db2user.courses;
INSERT INTO session.tempcourses VALUES (4, 'ECE103', 'Algorithms');
SELECT max(ID) FROM session.tempcourses;
Which results do USER1 and USER2 obtain?
A) User USER1 obtains the value 2; User USER2 obtains the value 4
B) User USER1 obtains the value 2; User USER2 obtains the value 2
C) User USER1 obtains the value 2; User USER2 obtains the value 3
D) User USER1 obtains the value 3; User USER2 obtains the value 4
E) User USER1 obtains no value; User USER2 obtains no value
質問と回答：
| 質問 # 1 正解： A | 質問 # 2 正解： B | 質問 # 3 正解： C | 質問 # 4 正解： B | 質問 # 5 正解： A |
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