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

  

  

  

  

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

  

  

  

  

Enum values are stored according to their index numbers

  

  

Which of the following is not an SQL aggregate function?

  

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

Which SQL statement is used to return only different values?

  

  

  

  

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

  

  

  

  

MySQL Access security is controlled through?

  

  

  

  

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

  

  

  

  

A table may be joined to itself.

  

  

  

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

  

  

  

  

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

  

  

  

  

What is Column?

  

  

  

  

Commands passed to the MySQL daemon are written in.

  

  

  

  

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

  

  

  

How much storage space does DATETIME require?

  

  

  

  

What is Table?

  

  

  

  

USE keyword is used to select a ___________

  

  

  

  

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

  

  

  

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

  

  

  

  

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

  

  

  

  

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 NOT available in MySQL?

  

  

  

  

MySQL supports the complete SQL99 standard

  

  

Which of the following is not a MySQL Operator?

  

  

  

  

MySQL comes with as standard with client libraries for:

  

  

  

  

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"?

  

  

  

  

  

A SELECT command without a WHERE clause returns?

  

  

  

  

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

  

  

  

  

Which of the following is not a character manipulation function?

  

  

  

  

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

  

  

  

The result of a SELECT statement can contain duplicate rows.

  

  

  

BLOB data type can have default column value.

  

  

What is a candidate key?

  

  

  

  

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

  

  

  

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

  

  

  

  

How to view all Triggers in MySQL?

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

What is DML?

  

  

  

  

What is DCL?

  

  

  

  

What is Row?

  

  

  

  

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"?

  

  

  

Can DISTINCT command be used for more than one column?

  

  

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

  

  

  

  

Which function used to get the current time in mysql?

  

  

  

Where is metadata stored in MySQL?

  

  

  

  

Which of the following is not a valid aggregate function?

  

  

  

  

The program called mysql is

  

  

  

  

  

What kind of replication is supported by the MySQL server?

  

  

  

  

Which statement is used to access an existing Database?

  

  

  

  

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

  

  

  

  

The “Mysql command line tool” formats are bounded by

  

  

  

  

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

  

  

  

  

How much character are allowed to create database name?

  

  

  

  

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

  

  

  

  

How is structure of a table got in MySQL?

  

  

  

  

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

  

  

  

  

Which of the following is NOT supported by MySQL

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

How many TRIGGERS are allowed in MySql table?

  

  

  

  

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

  

  

  

  

MySQL runs on which operating systems?

  

  

  

  

When do we use a HAVING clause?

  

  

  

  

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

  

  

  

  

A NULL value is treated as a blank or 0.

  

  

  

Can I define multiple unique constraints on a table?

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

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

  

  

  

  

The "father" of MySQL is

  

  

  

  

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

  

  

  

  

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.

  

  

Can I call a trigger directly called from an application?

  

  

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

  

  

  

  

What is DDL?

  

  

  

  

Which of the following is not an SQL aggregate function?

  

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

Can joins be nested?

  

  

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

  

  

  

  

You are required to buy a license for MySQL if

  

  

  

  

  

The USE command?

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

  

MySQL is

  

  

  

  

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 the correct SQL statement to use to remove rows from a table?

  

  

  

  

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

  

  

  

  

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