Database - Sql Test

Test Instructions :

1. The Test is 1hr duration.
2. The Test Paper consists of 30 questions. The maximum marks are 30.
3. All the questions are multiple choice question type with three options for each question.
4. Out of the three options given for each question, only one option is the correct answer.
5. Each question is allotted 1 mark for each correct response.
6. 0.25 will be deducted for incorrect response of each question.
Start Test

   Time Left : 00 : 30    : 00

In a SELECT with a GROUP BY clause, a WHERE clause, and a HAVING clause, the WHERE conditions are applied before the HAVING conditions.

  

  

  

  

Commands passed to the MySQL daemon are written in.

  

  

  

  

With SQL, how do you select all the columns from a table named "Persons"?

  

  

  

  

With SQL, how do you select a column named "FirstName" from a table named "Persons"?

  

  

  

The result of a SELECT statement can contain duplicate rows.

  

  

  

Which of the following is the correct SQL statement to use to remove rows from a table?

  

  

  

  

How many TRIGGERS are allowed in MySql table?

  

  

  

  

Which command is used on Mysql command line tool to return to window command shell?

  

  

  

  

How do I find out all databases starting with ‘test to which I have access to?

  

  

  

  

How can we get the number of records or rows in a table?

  

  

  

  

An outer join requires each record in the two joined tables to have a matching record.

  

  

  

  

Which of the following ways below are the correct way to get the current date?

  

  

  

  

Which statement is used to access an existing Database?

  

  

  

  

Which of the following file extension is a valid MyISAM file extension?

  

  

  

  

How many distinct, different values can you hold in an enum field?

  

  

  

  

Which of the following is NOT supported by MySQL

  

  

  

  

What MySQL property is used to create a surrogate key in MySQL?

  

  

  

  

Can I call a trigger directly called from an application?

  

  

What is Column?

  

  

  

  

Which of the following is not a MySQL Operator?

  

  

  

  

Which is the default order of sort in ORDER BY clause?

  

  

Which of these commands will delete a table called XXX if you have appropriate authority:

  

  

  

  

How to view all Triggers in MySQL?

  

  

  

  

mysql_pconnect() is used to make a persistent connection to the database which means a SQL link that do not close when the execution of your script ends.

  

  

With SQL, how can you return all the records from a table named "Persons" sorted descending by "FirstName"?

  

  

  

  

If you want to undo a GRANT, you should use

  

  

  

  

  

What will happen at the end of the following sequence of SQL commands? BEGIN TRANSACTION DELETE FROM MYTABLE WHERE ID=1 DELETE FROM OTHERTABLE ROLLBACK TRANSACTION

  

  

  

  

  

Can DISTINCT command be used for more than one column?

  

  

MySQL is

  

  

  

  

Which of these field types would be best to hold a .jpg image?

  

  

  

  

________ is an open source DBMS product that runs on UNIX, Linux and Windows.

  

  

  

  

Sometimes the expression "select count(*)" will return fewer rows than the expression "select count(value)".

  

  

Transactions are used to treat sets of SQL statements atomically.

  

  

Which of the following can add a row to a table?

  

  

  

  

Which SQL statement is used to extract data from a database?

  

  

  

  

  

Which authentications are required for login into Mysql command line tool?

  

  

  

  

What is an open source DBMS product that runs on UNIX, Linux and Windows

  

  

  

  

With SQL, how can you delete the records where the "FirstName" is "Peter" in the Persons Table?

  

  

  

Which command is used for showing current date and time in Mysql command line tool?

  

  

  

  

To use MySQL on your computer, you'll need?

  

  

  

  

The program called mysql is

  

  

  

  

  

Which of the following is NOT available in MySQL?

  

  

  

  

With SQL, how do you select all the records from a table named "Persons" where the value of the column "FirstName" is "Peter"?

  

  

  

  

What is DCL?

  

  

  

  

Which of the following is not an SQL aggregate function?

  

  

  

  

  

With SQL, how can you insert a new record into the "Persons" table?

  

  

  

Internally information is held in tables. Which of these is NOT a valid format:

  

  

  

  

  

Can I define multiple unique constraints on a table?

  

  

How much storage space does DATETIME require?

  

  

  

  

What's the difference between the DESCRIBE and SHOW FIELDS FROM commands?

  

  

  

What does the DESC keyword do in the following query? SELECT * FROM MY_TABLE WHERE ID > 0 ORDER BY ID, NAME DESC

  

  

  

  

  

Which of the following is not a character manipulation function?

  

  

  

  

With SQL, how do you select all the records from a table named "Persons" where the value of the column "FirstName" starts with an "a"?

  

  

  

  

  

Which of the following commands should be used to create a database named “student”?

  

  

  

  

The main MySQL program that does all the data handling is called?

  

  

  

  

How can you change "Hansen" into "Nilsen" in the "LastName" column in the Persons table?

  

  

  

  

Given an employees table as follows:   emp_id emp_name 1 Brush 2 Jerrin  what value will be return by below query ? Select count(*) from employees  

  

  

  

  

Which command is used for taking “server side help” in Mysql command line tool

  

  

  

  

Use the .............. to delete the data inside the table, and not the table itself?

  

  

  

  

One of the early proponents of relational database who laid down many of the principles we use to this day was:

  

  

  

  

  

MySQL comes with as standard with client libraries for:

  

  

  

  

What is Table?

  

  

  

  

With SQL, how do you select all the records from a table named "Persons" where the "LastName" is alphabetically between (and including) "Hansen" and "Pettersen"?

  

  

  

With SQL, how can you return the number of records in the "Persons" table?

  

  

  

  

In a LIKE clause, you can ask for any 6 letter value by writing?

  

  

  

  

MySQL runs on which operating systems?

  

  

  

  

The “Mysql command line tool” formats are bounded by

  

  

  

  

What is DDL?

  

  

  

  

If an ENUM column is declared NOT NULL, its default value is the first element of the list of allowed values.

  

  

  

  

Which of the following is not an SQL aggregate function?

  

  

  

  

  

The “Mysql command line tool” format the results in which of the following format:

  

  

  

  

Which SQL statement is used to delete data from a database?

  

  

  

  

Which one will delete the table data as well as table structure?

  

  

Enum values are stored according to their index numbers

  

  

Which function used to get the current time in mysql?

  

  

  

User() fucntion returns the current users user name and ___________

  

  

  

  

MySql | Which of the following is available in MySQL:

  

  

  

  

  

What is Row?

  

  

  

  

If you're writing a client using the C language API, your source code should include the following line at the top:

  

  

  

  

Primary Key does allow the Null Values. where as in Unique key doesn't accept the Null values.

  

  

The USE command?

  

  

  

  

When do we use a HAVING clause?

  

  

  

  

Which of these is not a valid name for a column

  

  

  

  

Which SQL statement is used to update data in a database?

  

  

  

  

MySQL Access security is controlled through?

  

  

  

  

What SQL clause is used to restrict the rows returned by a query?

  

  

  

  

With SQL, how can you insert "Olsen" as the "LastName" in the "Persons" table?

  

  

  

Which of these is a valid call to a function (watch the spaces carefully!)

  

  

  

  

What is a candidate key?

  

  

  

  

What is DML?

  

  

  

  

Which command is used in Mysql command line tool to return to window command shell?

  

  

  

  

In a LIKE clause, you can could ask for any value ending in "qpt" by writing

  

  

  

  

Where is metadata stored in MySQL?

  

  

  

  

Which of the following is used to delete an entire MYSQL database?

  

  

  

  

MySQL supports the complete SQL99 standard

  

  

Which of the following is not a valid aggregate function?

  

  

  

  

A SELECT command without a WHERE clause returns?

  

  

  

  

Which SQL statement is used to return only different values?

  

  

  

  

On executing DELETE command, if you get an error "foreign key constraint" what does it imply?

  

  

  

  

Mysql command line tool is used to show “how many rows are returned and how long SQL command took to execute”

  

  

  

  

Note:
  • Click the 'Submit Test' button given in the bottom of this page to Submit your answers.
  • Test will be submitted automatically if the time expired.
  • Don't refresh the page.