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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Where is metadata stored in MySQL?

  

  

  

  

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

  

  

  

  

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

  

  

  

  

Enum values are stored according to their index numbers

  

  

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

  

  

  

  

The result of a SELECT statement can contain duplicate rows.

  

  

  

Transactions are used to treat sets of SQL statements atomically.

  

  

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 an SQL aggregate function?

  

  

  

  

  

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

  

  

  

  

Which of the following is not an SQL aggregate function?

  

  

  

  

  

MySQL Access security is controlled through?

  

  

  

  

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

  

  

  

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

  

  

  

What is DCL?

  

  

  

  

The “Mysql command line tool” formats are bounded by

  

  

  

  

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

  

  

  

  

  

You are required to buy a license for MySQL if

  

  

  

  

  

The "father" of MySQL is

  

  

  

  

How many TRIGGERS are allowed in MySql table?

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

  

A SELECT command without a WHERE clause returns?

  

  

  

  

Can joins be nested?

  

  

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  

  

  

  

  

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 the following file extension is a valid MyISAM file extension?

  

  

  

  

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

  

  

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 "LastName" is alphabetically between (and including) "Hansen" and "Pettersen"?

  

  

  

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

  

  

  

  

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"?

  

  

  

  

  

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

  

  

  

  

Which function used to get the current time in mysql?

  

  

  

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

  

  

  

  

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

  

  

  

  

How is structure of a table got 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?

  

  

  

  

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

  

  

  

  

Commands passed to the MySQL daemon are written in.

  

  

  

  

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

  

  

  

A table may be joined to itself.

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

MySQL is

  

  

  

  

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

  

  

  

  

The USE command?

  

  

  

  

Which of the following is not a MySQL Operator?

  

  

  

  

Which of these is not a valid name for a column

  

  

  

  

What kind of replication is supported by the MySQL server?

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

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

  

  

  

  

Which SQL statement is used to return only different values?

  

  

  

  

Can I define multiple unique constraints on a table?

  

  

How to view all Triggers in MySQL?

  

  

  

  

MySQL runs on which operating systems?

  

  

  

  

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

  

  

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

  

  

  

  

How much storage space does DATETIME require?

  

  

  

  

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

  

  

  

  

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

  

  

Which statement is used to access an existing Database?

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

What is Table?

  

  

  

  

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

  

  

  

  

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

  

  

  

  

What does SQL stand for?

  

  

  

  

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

  

  

  

  

A user with RELOAD priveliges can

  

  

  

  

When do we use a HAVING clause?

  

  

  

  

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

  

  

MySql | Which of the following is available in MySQL:

  

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

  

Can DISTINCT command be used for more than one column?

  

  

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

  

  

  

  

  

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

  

  

  

Which of the following is NOT available in MySQL?

  

  

  

  

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

  

  

  

  

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

  

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

Can I call a trigger directly called from an application?

  

  

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

  

  

  

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

  

  

  

  

What is Row?

  

  

  

  

Which of the following is not a character manipulation function?

  

  

  

  

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

  

  

  

  

A NULL value is treated as a blank or 0.

  

  

  

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.

  

  

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