Practice Free 1z0-909 MySQL 8.0 Database Developer Exam Questions Answers With Explanation

db.country. fields ( [ 'Name ' , 'Population* ] ) .where ( 'Name LIKE "United%',,) -select ()-limit(5)

db . country, select ( [ ' Name LIKE "united%" ' , ' Population>^0 ' ] ) - limit (5)

db . country. fields ( [ ' Name ' , 'Population']) . select (' limit=5 ' ) .where('Name LIKE "United%" ' )

db. country-select(['Name',’Population']) .where('Name LIKE :param’) -bind ('param' , 'United*') -limit(5)

db . country. Select ([Name' , 'Population.'] ) -limit (5) .where('Name LIKE "United%"')

The engine is disabled.

The set local_infile option has not been enabled.

The database user does not have sufficient privilege.

The database server process does not have sufficient privilege.

The database client process does not have sufficient privilege.

The database server is running in read-only mode.

start_time TIMESTAMP duration TIMESTAMP

start_time TIMESTAMP duration TIME

start_time DATETIME duration DATETIME

start_time TIME duration TIME

start__time DATETIME duration TIME

SELECT Name, Gender, Sport, REPEAT('# 'Y GPA*10) AS GPA_Graph FROM players ORDER BY GPA DESC;

SELECT Name, Gender, Sport, LENGTH (GPA*10, '# ') AS GPA_Graph FROM players ORDER BY GPA DESC;

SELECT Name, Gender, Sport, CHAR_LENGTH ('# ' GPA*10) AS GPA_Graph FROM players ORDER BY GPA DESC;

SELECT Name, Gender, Sport, RPAD ('# ' GPA*10) AS GPA_Graph FROM players ORDER BY GPA DESC;

SELECT Name, Gender, Sport, CONCAT ('# ' GPA*10) AS GPA_Graph FROM players ORDER BY GPA DESC;

The column must be a generated column referencing any attribute of doc.

The column must have a default value.

The column must be used in a unique constraint.

The column must be a generated column referencing only an existing attribute of doc.

The column must be indexed.

SELECT last_name + ', ' + first_name FROM employees;

SELECT CONCAT_WS(', ',last_name,first_name) FROM employees;

SELECT GROUP_CONCAT(last_name, first_name) FROM employees;

SELECT last_name, ‘ , ',first_name FROM employees;

SELECT CONCAT(last name,', ',first_name) FROM employees;

The select requires json_unquoteo in the where clause.

The virtual values in the name column must be accessed using functions.

The JSON datatype cannot be used in virtual columns.

The json_extract() function requires a length value that matches the field length in the schema.

Table statistics must be updated to generate values for the name column.

Option A

Option B

Option C

Option D

Inserting COMMIT; SET @m :=: before line 4

user who creates the procedure needing the create and execute privileges

user who creates the procedure needing the create routine privilege

inserting USE ; before line 3

Inserting DEFINER 'username '@' localhost' clause into the CREATE PROCEDURE statement

SELECT 'Car' REGEXP('Ca?') >= 0 INTO @r;

SELECT STRCMP(‘Car'/Ca?') >= 0 INTO @r;

SELECT 'Car' LIKE 'Ca?' INTO @r;

SELECT 'Car' RLIKE 'Ca?' INTO @r;

It inserts a row with a warning.

It inserts a row with no error or warning.

It inserts a row with an error.

It fails with an error.

It fails with a warning.

Session 1 takes a shared lock on all the rows in the band table.

Session 1 must commit before the update in Session 2 can complete.

Session 1 does not block Session 2.

Statements in Session 2 are committed.

Session 2 takes an exclusive lock on all the rows in the band table.

Session 2 does not start a transaction.

SELECT NULL <> NULL;

SELECT NULL <=> NULL;

SELECT NULL = NULL;

SELECT NULL := NULL;

Option A

Option B

Option C

Option D