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NEW QUESTION 35
Examine this statement and output:
CREATE TABLE geom (g GEOMETRY NOT NOLL, SPATIAL INDEX(g) ) ; Query OK, 0 rows affected, 1 warning (0.01 sec) An attempt is made to add an SRID attribute to the column using the statement:
ALTER TABLE geom MODIFY COLUMN g geometry NOT NULL SRID 0;
Which is true?

  • A. An error is generated because the index prevents changes to the column.
  • B. Execution succeeds and allows the use of the index by the optimizer.
  • C. An error is generated because srid o is an invalid identifier value.
  • D. Execution succeeds with a warning.

Answer: A

 

NEW QUESTION 36
Examine the Test.php script which is numbered for clarity, and its output:

PHP Fatal error: Uncaught Error: call to underined function mysqli_connect () in Test.php:2 Which action will fix this error?

  • A. Enable the mysqli extension in the php.ini file.
  • B. Install the PHP executable in the path used by the MySQL installation.
  • C. Replace line 2 with Slink = mysql.connect {“localhost: 3306n, “username”, “pas “schema”) ;
  • D. Replace line 2 With: Slink = mysql_xdevapi\getSession
    (“mysqlx://username:[email protected]:3306″,”schema”);

Answer: D

 

NEW QUESTION 37
The variables c and d are declared as integer types.
Examine these initialization statements with placeholder value <p1>, which execute successfully:
Now, examine this loop which executes successfully:

Which loop results in the same value of d for all valid values of <p1>?
A)

B)

C)

  • A. Option D
  • B. Option C
  • C. Option A
  • D. Option B

Answer: C

 

NEW QUESTION 38
Which two differences exist between the timestamp and date time data types?

  • A. timestamp has larger range of values.
  • B. timestamp stores more decimal points in seconds
  • C. timestamp converts the value based on the session time zone.
  • D. timestamp uses less storage space.
  • E. timestamp stores the interval between two dates.

Answer: C,D

 

NEW QUESTION 39
Examine this statement which has executed successfully:

  • A. The statement takes advantage of index description_idx.
  • B. Execution performance can be improved by adding an index on column description.
  • C. No index will improve statement performance.
  • D. Execution performance can be improved by, using a composite index with column description as the leftmost prefix column description.
  • E. Execution performance can be improved by using like instead of RLIKE.

Answer: D

 

NEW QUESTION 40
……

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