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NEW QUESTION 25
Examine these statements issued from Session 1 which execute successfully:

Now, examine this statement issued from Session 2:

What is the outcome of the update statement in Session 2?

• A. A deadlock will occur.
• B. The transaction in Session 1 will be rolled back automatically.
• C. The statement will wait for the transaction in Session 1 to finish.
• D. The row will be updated immediately.

Answer: B

NEW QUESTION 26
Examine these statements which execute successfully:

Which two changes will improve this query performance?

• A. CREATE INDEX 1X2 ON locations (loc_mapping) USING HASH; fH
• B. CREATE INDEX 1X5 ON users (loc_id);
• C. CREATE INDEX 1X6 ON users (user_name);
• D. CREATE INDEX 1X3 ON locations <loc_site_id) ;
• E. CREATE INDEX IX1 ON locations (loc_shareci) ;
• F. CREATE INDEX 1X7 ON users (user_name) USING HASH;
• G. CREATE INDEX 1X4 ON Locations (site_id, loc_shared);

Answer: C,F

NEW QUESTION 27
You must reclaim memory used by a prepared statement named prep. Which two achieve this?

• A. SET @prep = NULL;
• B. DEALLOCATE PREPARE prep?
• C. SET @a = ''; EXECUTE prep USING @a;
• D. PREPARE prep FROM '';
• E. DROP PROCEDURE prep;
• F. DROP PREPARE prep;

Answer: A,E

NEW QUESTION 28
Examine these statements which execute successfully:

Now, examine this query:

What is the result?

• A. It inserts a row with a warning.
• B. It inserts a row with no error or warning.
• C. It fails with an error.
• D. It inserts a row with an error.
• E. It fails with a warning.

Answer: B

NEW QUESTION 29
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