1z0-882 Oracle Certified Professional, MySQL 5.6 Developer Questions and Answers

Provides a simple, well supported method for accessing and updating data.

Provides a total in –memory storage system that eliminates disk1/0 overhead.

Bypasses the SQL layer thus avoiding extra processing.

Implements a fast caching mechanism to replace the query cache.

Provides protection via InnoDB buffers and crash recovery.

By the default SQL_MODE of the server

By the current SQL _MODE of the session

By the SQL_MODE that was set when the routine was defined

By using TRADITTIONAL regardless of any other settings

ExecuteReader, ExecuteNonQuery, ExecuteScalar

PreformReadonly, performNonQuery,perforIndexRead

Query, Execute.MySql, Read. Execute. MySQl, Execute,Mysql

Insert Mysql, UpdateMysql,DeleteMysql

Query .Apply ,Mysql.Delete.Mysql,Query. Update .Mysql

The mysql extension supports only client-side emulation.

The mysql1 extension support client-side emulation.

The PDO_MySQL extension supports both client –side and server –side emulation.

The PDO_MySQL extension supports only server –side emulation.

Option A

Option B

Option C

Option D

PREPARE STATEMENT countrycode FROM ‘SELECT code FROM counyry WHERE Name =?.;

PREPARE countrycode As ‘SELECT code FROM country WHERE Name =?.;

PREPARE countrycode FROM ‘SELECT code FROM country WHERE Name =?.;

PREPARE STATEMENT countrycode As ‘SELECT code FROM country WHERE Name =?.;

An error message

One row with 5 columns

One row with 10 columns

One row with 15 columns

You can do this one command:

ALTER DATABASE test CHARACTER SET latin1 COLLATE latin1_german_ci

You can only do this with two separate commands:

ALTER DATABASE ‘test’ CHARACTER SET latin1

ALTER DATABASE ‘test’ COLLATE latin_german1_ci

You cannot change the CHARACTER set or COLLATION value on an existing database.

Databases do not have CHARACTER SET or COLLATION attributes.

The optimizer processes only the JOINs in the sequence listed in the query.

The optimizer will only JOIN the tables by using their PRIMARY KEYS or UNIQUE constraints.

The optimizer will only JOIN the tables in sequence from smallest to largest.

The optimizer ignores all terms in the WHERE clause until all JOINs have been completed.

The query need an index on the emp-no column.

The query cannot be optimized as an index is already used.

The query needs an index that includes the title column.

The query cannot be optimized as count () must read all rows.

SELECT GROUP_IMPLODE (Language) As Lang FROM countrylanguage WHERE countrycode= ‘GBR’;

SELECT GROUP_CAT(Language) As Lang FROM countrylanguage WHERE countrycode=’GBR’;

SELECT GROUP_CSV(Language) As Lang FROM countrylanguage WHERE countrycode=’GBR’;

SELECT GROUP_CONCAT (Language) As Lang FROM countrylanguage WHERE countrycode=’GBR’;

SELECT * FROM tableA. tableB

SELECT * FROM tableA JOIN tableB

SELECT * FROM table A INNER JOIN tableB

SELECT * FROM tableA NATURAL JOIN tableB

SELECT & FROM tableA STRAIGHT JOIN tableB