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.
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BLOB data type can have default column value.

  

  

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

  

  

  

  

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

  

  

  

  

A table may be joined to itself.

  

  

  

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

  

  

  

  

What does SQL stand for?

  

  

  

  

The "father" of MySQL is

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

Can I call a trigger directly called from an application?

  

  

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

  

  

  

  

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

  

  

  

  

  

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

  

  

  

  

How much character are allowed to create database name?

  

  

  

  

Commands passed to the MySQL daemon are written in.

  

  

  

  

Which statement is used to access an existing Database?

  

  

  

  

How to view all Triggers in MySQL?

  

  

  

  

Which of the following is NOT supported by MySQL

  

  

  

  

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

  

  

  

  

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

  

  

  

  

Can DISTINCT command be used for more than one column?

  

  

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 of the following is not a valid aggregate function?

  

  

  

  

Where is metadata stored in MySQL?

  

  

  

  

Which SQL statement is used to return only different values?

  

  

  

  

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

  

  

  

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

  

  

  

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

  

  

  

  

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

  

  

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

  

  

  

  

Can I define multiple unique constraints on a table?

  

  

What is DDL?

  

  

  

  

Can joins be nested?

  

  

Which of these is not a valid name for a column

  

  

  

  

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

  

  

  

  

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

  

  

  

  

Which of the following is not an SQL aggregate function?

  

  

  

  

  

The “Mysql command line tool” formats are bounded by

  

  

  

  

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

  

  

Which of the following is not a MySQL Operator?

  

  

  

  

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

  

  

  

  

When do we use a HAVING clause?

  

  

  

  

What is Column?

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

What is Table?

  

  

  

  

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 in Mysql command line tool to return to window command shell?

  

  

  

  

MySQL supports the complete SQL99 standard

  

  

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

  

  

  

  

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

  

  

  

  

What is Row?

  

  

  

  

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

  

  

  

  

MySQL Access security is controlled through?

  

  

  

  

How is structure of a table got in MySQL?

  

  

  

  

You are required to buy a license for MySQL if

  

  

  

  

  

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

  

  

  

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

  

  

  

  

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

  

  

  

  

With SQL, how do you select all the records from a table named "Persons" where the "FirstName" is "Aru" and the "LastName" is "Sum"?

  

  

  

  

Which of the following is not an SQL aggregate function?

  

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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:

  

  

  

  

A NULL value is treated as a blank or 0.

  

  

  

MySQL comes with as standard with client libraries for:

  

  

  

  

The USE command?

  

  

  

  

Which of the following is NOT available in MySQL?

  

  

  

  

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

  

  

  

  

  

A user with RELOAD priveliges can

  

  

  

  

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

  

  

  

  

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

  

  

  

  

  

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?

  

  

  

  

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

  

  

  

  

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

  

  

  

  

Which function used to get the current time in mysql?

  

  

  

How much storage space does DATETIME require?

  

  

  

  

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"?

  

  

  

  

  

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

  

  

  

  

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

  

  

  

  

MySQL is

  

  

  

  

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

  

  

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

  

  

  

  

  

MySQL runs on which operating systems?

  

  

  

  

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

  

  

  

  

What is DML?

  

  

  

  

MySql | Which of the following is available in MySQL:

  

  

  

  

  

Transactions are used to treat sets of SQL statements atomically.

  

  

What is DCL?

  

  

  

  

Which of the following is not a character manipulation function?

  

  

  

  

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

  

  

  

  

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