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

  

  

  

  

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

  

  

  

  

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 the following is not a MySQL Operator?

  

  

  

  

What is Row?

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

Which of the following is not a character manipulation function?

  

  

  

  

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

  

  

  

  

A NULL value is treated as a blank or 0.

  

  

  

How is structure of a table got in MySQL?

  

  

  

  

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

  

  

  

Can DISTINCT command be used for more than one column?

  

  

When do we use a HAVING clause?

  

  

  

  

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

  

  

  

  

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

  

  

  

  

A SELECT command without a WHERE clause returns?

  

  

  

  

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

  

  

  

  

If you want to undo a GRANT, you should use

  

  

  

  

  

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

  

  

  

  

  

Enum values are stored according to their index numbers

  

  

Where is metadata stored in MySQL?

  

  

  

  

A user with RELOAD priveliges can

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

Can I call a trigger directly called from an application?

  

  

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

  

  

  

  

The “Mysql command line tool” formats are bounded by

  

  

  

  

MySQL comes with as standard with client libraries for:

  

  

  

  

Which of these is not a valid name for a column

  

  

  

  

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

  

  

  

  

  

The USE command?

  

  

  

  

Which function used to get the current time in mysql?

  

  

  

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

  

  

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

  

  

  

  

Which statement is used to access an existing Database?

  

  

  

  

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

  

  

  

  

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

  

  

  

  

  

What is a candidate key?

  

  

  

  

MySQL Access security is controlled through?

  

  

  

  

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

  

  

  

  

  

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

  

  

  

  

Which SQL statement is used to return only different values?

  

  

  

  

MySQL supports the complete SQL99 standard

  

  

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

  

  

  

  

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

  

  

  

  

A table may be joined to itself.

  

  

  

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

  

  

  

BLOB data type can have default column value.

  

  

How much storage space does DATETIME require?

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

Transactions are used to treat sets of SQL statements atomically.

  

  

How to view all Triggers in MySQL?

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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"?

  

  

  

MySQL is

  

  

  

  

Commands passed to the MySQL daemon are written in.

  

  

  

  

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

  

  

Which of the following is not an SQL aggregate function?

  

  

  

  

  

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

  

  

You are required to buy a license for MySQL if

  

  

  

  

  

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

  

  

  

  

The program called mysql is

  

  

  

  

  

What is DDL?

  

  

  

  

Which of the following is NOT available in MySQL?

  

  

  

  

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

  

  

  

  

  

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

  

  

  

  

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

  

  

  

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

  

  

  

  

With SQL, how can you delete the records where the "FirstName" is "Peter" 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 one will delete the table data as well as table structure?

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

MySql | Which of the following is available in MySQL:

  

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

Can joins be nested?

  

  

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

  

  

  

  

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

  

  

  

  

What is Column?

  

  

  

  

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

  

  

  

The "father" of MySQL is

  

  

  

  

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