1z0-882 무료 덤프문제 온라인 액세스

What is true about the contents of the INFORMATION_SCHEMATA table?

• A.It contains information about the table structure for all databases.
• B.It contains information such as name, character set, and collation for all the databases on the server.
• C.It contains information about all the tables, triggers, and views for all databases.
• D.It contains information including tables, trigger, stored routines, and views for all databases

Consider the statement:
CREATE TABLE t1 (a INT) PARTITION BY KEY
/*150611 ALGORITHM = 1*/
What does this statement do?

• A.Create the t1 table partitioned by KEY with the default algorithm in all versions.
• B.Create the t1 table partitioned by KEY using algorithm 1 only in MYSQL version 5.6.11 and the default algorithm in
  other versions.
• C.Create the t1 table partitioned by KEY using algorithm 1 only if the preceding statement returned error condition
  50611.
• D.Create the t1 table partitioned by KEY using algorithm 1 only in MYSQL versions 5.6.11 or newer and the default
  algorithm in older versions.

What are two ways in which normalizing your tables helps improve performance In MySQL?

• A.Fewer nullable column improve index usage.
• B.Normalizing Improves the performance of innodb_file_per _table.
• C.Smaller table sizes and row lengths improve sorting operations.
• D.Separate tables allow indexing more columns.

You attempt to create a temporary table by using the following statement:
CREATE TEMPORARY TABLE employeesMAIN
SELECT * FROM employees1
UNION ALL
SELECT * FROM employees2;
What is the result?

• A.All rows from both tables exist in employeesMAIN.
• B.A unique list of employees exist in employeesMAIN.
• C.An error is produced because you cannot create a TEMPORARY TABLE with a UNION.
• D.The employees common to both tables exist in employees MAIN.

Which two PHP modules provide APIs for developing MYSQL applications?

• A.PDO_mysql
• B.Mysqli
• C.PDO
• D.Mysqlnd