NO.1 In MYSQL 5.6 you have the table t1:
CREATE TABLE t1 (
id int
unsigned NOT NULL PRIMARY key) ENGINE = InnoDB;
There are two connections to
the server. They execute in this order:
Connection 1> SET TRANSACTION
ISOLATION LEVEL REPEATABLE READ;
Connection 1> START
TRANSACTION;
Connection 1> SELECT * FROM t1 WHERE id =1;
Connection
2> TRUNCATE TABLE t1;
What happens to the TRUNCATE TABLE command in
connection 2?
A. It runs concurrently with the transaction in connection 1 as
each connection has its own view of
the data in the t1 table.
B. It blocks
waiting for a metadata lock until the transaction in connection 1 ends.
C. It
blocks waiting for a table lock until the transaction in connection 1
ends.
D. It immediately proceeds and causes an implicit commit of the
transaction in connection1.
Answer: B
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NO.2 You have created your connector/Net object to connect
to MySQL.
What are three valid database operations you can call?
A.
PreformReadonly, performNonQuery,perforIndexRead
B. Query, Execute.MySql,
Read. Execute. MySQl, Execute,Mysql
C. Insert Mysql,
UpdateMysql,DeleteMysql
D. ExecuteReader, ExecuteNonQuery,
ExecuteScalar
E. Query .Apply ,Mysql.Delete.Mysql,Query. Update
.Mysql
Answer: D
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Reference:http://dev.mysql.com/doc/connector-net/en/connector-net-tutorials-sqlcommand.html
NO.3
Consider the statements:
Mysql> drop function foo;
ERROR 1305 (420000):
FUNCTION test, foo does not exist
Mysql > show warnings;
Mysql> get
diagnostics condition 2 @msg=MESSAGE_TEXT;
What is the result of the final
statement?
A. An empty result is returned.@msg is set to message of the
warning.
B. A line will be an output to the error log that contains the
warning message details from the failed
command.
C. An error is generated
as only one condition can exist in the diagnostics area.
D. A warning message
is generated that adds error 1758 (invalid condition number) to the
diagnostics
area.
Answer: B
(Imagine your friend comes to your house with red, puffy eyes. You might say, "Your eyes are red. Have you been crying?"
Or you notice that a co-worker is looking tanned. You might ask, "You look tanned. Have you have been sunbathing?"
Remember that stative verbs cannot be used in any progressive tense. A stative verb describes unchanging situations, often mental states such as realize, appear and seem.
You should not say, "I've been knowing you for a long time." If you have a stative verb, use the present perfect: "I have known you for a long time."
Almost all native speakers will contract, or shorten the pronoun that comes before have or has. "I have been" will sound like, "I've been."
Expert grammarian and teacher Betty Azar tells English learners: "Don't expect slow, careful pronunciation of helping verbs in normal conversation.")
1z0-882
exam 1z0-882 Practice Exam
NO.4 A table (t1)
contains 1000 random integer values in the first column (col1).The random
values
are in the range of 0-1000.
Examine this query:
SELECT col1 FROM
t1 WHERE col1 <=100 UNION
SELECT col1 FROM t1 WHERE col1 >=900 ORDER BY
col1 DESC
What is the expected output?
A. A list of all random unsorted
values, including duplicates, in the range of 0-100 followed by the list
of
all values, including in the range of 900-1000 sorted in descending order
B.
A list of unique random values in the range of 0-100 followed by the list of
unique values in the
range of 900-1000 sorted in descending order
C. A
list of all unique values sorted in descending order within the ranges of 0-100
and 900
D. A list of all values, including duplicates, sorted in descending
order in the ranges of 0100 and 900-
1000
Answer: A
NO.5 You are
connected to a MySQL server and using a prepared statement. You accidentally
exit
your session.
What will happen if you log back in to use your
prepared statement?
A. The statement exists, but will need to be deallocated
and re-created.
B. The statement exists, but the user variables need to be
redefined.
C. The statement no longer exists.
D. The statement can be
used, if the MySQL server hasn't been restarted.
Answer:
A
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Reference:http://dev.mysql.com/doc/refman/5.0/en/sql-syntax-prepared-statements.html
NO.6
Assume that none of the databases exist.
Which statement results in an
error?
A. CREATE DATABASE $test
B. CREATE DATABASE $
C. CREATE DATABASE
1$
D. CREATE DATABASE _
E. CREATE DATABASE 12
Answer:
A
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NO.7 You want to load data
directly from a file into MYSQL by using the SOURCE command.
Which types of
data can the file contains to perform this?
A. Tab-delimited data
B.
MyISAM or InnoDB data files
C. SQL commands
D. Comma-delimited
data
Answer: D
NO.8 Given the table City:
SELECT Name FROM City
WHERE CountryCode = 'USA" OR WHERE CountryCode= 'JPN'
What does this
statementprocedure?
A. Two result sets each containing a single column with
the names of cities from country codes USA
and JPN.
B. A single result set
with two columns containing the names from country codes USA and JPN.
C. A
single result set with one column that contains the names of cities from country
codes USA and
JPN.
D. No result set is returned and an error message is
given.
Answer: C
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(Let us move on to the past perfect progressive. The past perfect progressive emphasizes the duration of a past action before another action happened.
For example, "I had been smoking for 10 years before I quit."
You form the past perfect progressive by using had been followed by an –ing verb.
Notice how the past perfect progressive often includes the adverbs for and since to express duration. You will also see the adverbs before, when or by the time used to introduce a second action.
The second action uses the simple past tense. Here are some more examples:
I had been studying for 12 years by the time I graduated from high school.
She had been living there since she was a child.
He had been teaching for 12 years before he was certified.
The past perfect progressive can also describe a recently completed action. For instance:
My clothes were wet because it had been raining.
He was talking loudly because he had been drinking.)