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

Which of the following is not an SQL aggregate function?

  

  

  

  

  

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

  

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

SQL is not case sensitive. SELECT is the same as select.

  

  

USE keyword is used to select a ___________

  

  

  

  

A view is nothing but a ________ table or a stored query

  

  

  

  

A NULL value is treated as a blank or 0.

  

  

  

MySQL Access security is controlled through?

  

  

  

  

Commands passed to the MySQL daemon are written in.

  

  

  

  

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

  

  

  

  

The USE command?

  

  

  

  

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

  

  

  

  

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

  

  

  

  

Which of the following is NOT supported by MySQL

  

  

  

  

Which function used to get the current time in mysql?

  

  

  

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

  

  

  

  

What is a candidate key?

  

  

  

  

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

  

  

  

  

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

  

  

  

  

What type of lock will deny users any access to a table?

  

  

  

  

  

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

  

  

  

The "father" of MySQL is

  

  

  

  

The program called mysql is

  

  

  

  

  

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

  

  

Can I call a trigger directly called from an application?

  

  

Which of the following is not an SQL aggregate function?

  

  

  

  

  

A table may be joined to itself.

  

  

  

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

  

  

  

The ............. statement is used to delete a table.

  

  

  

  

What is the command for counting all the rows in a table in MySQL?

  

  

  

  

In PHP in order to access MySQL database you will use:

  

  

  

  

BLOB data type can have default column value.

  

  

Which of the following is not a MySQL Operator?

  

  

  

  

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

  

  

You are required to buy a license for MySQL if

  

  

  

  

  

MySQL comes with as standard with client libraries for:

  

  

  

  

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

  

  

  

  

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

  

  

How much character are allowed to create database name?

  

  

  

  

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

  

  

  

  

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

  

  

  

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

  

  

  

  

MySQL runs on which operating systems?

  

  

  

  

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

  

  

  

  

Which of these field types would be best to hold a film title?

  

  

  

  

Which of the following is NOT available in MySQL?

  

  

  

  

What does SQL stand for?

  

  

  

  

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

  

  

  

  

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

  

  

  

  

Which SQL statement is used to return only different values?

  

  

  

  

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

  

  

  

  

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.

  

  

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

  

  

  

  

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

  

  

  

  

The result of a SELECT statement can contain duplicate rows.

  

  

  

Which of the following DBMSs do not have a native PHP extension?

  

  

  

  

  

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

  

  

  

  

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

  

  

  

  

Which SQL statement is used to insert a new data in a database?

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

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

  

  

  

  

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

  

  

  

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

  

  

  

  

  

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

  

  

  

  

Which of the following is not a valid aggregate function?

  

  

  

  

Where is metadata stored in MySQL?

  

  

  

  

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

  

  

  

  

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

  

  

  

  

What is Table?

  

  

  

  

How to view all Triggers in MySQL?

  

  

  

  

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

  

  

  

  

The “Mysql command line tool” formats are bounded by

  

  

  

  

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

  

  

  

  

How is structure of a table got in MySQL?

  

  

  

  

Which of these is not a valid name for a column

  

  

  

  

Can joins be nested?

  

  

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

  

  

  

  

Enum values are stored according to their index numbers

  

  

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

  

  

  

  

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

  

  

  

  

MySql | Which of the following is available in MySQL:

  

  

  

  

  

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

  

  

  

  

MySQL supports the complete SQL99 standard

  

  

Which SQL keyword is used to sort the result-set?

  

  

  

  

Transactions are used to treat sets of SQL statements atomically.

  

  

What is Row?

  

  

  

  

To remove duplicate rows from the result set of a SELECT use the following keyword:

  

  

  

  

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

  

  

  

  

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

  

  

  

  

MySQL is

  

  

  

  

A user with RELOAD priveliges can

  

  

  

  

What is Column?

  

  

  

  

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

  

  

  

  

Which statement is used to access an existing Database?

  

  

  

  

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"?

  

  

  

  

  

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

  

  

  

  

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.