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

  

  

  

  

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

  

  

  

  

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?

  

  

  

  

  

MySQL is

  

  

  

  

What is Column?

  

  

  

  

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

  

  

  

  

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 is a candidate key?

  

  

  

  

How much storage space does DATETIME require?

  

  

  

  

Can DISTINCT command be used for more than one column?

  

  

BLOB data type can have default column value.

  

  

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

  

  

  

  

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

  

  

  

  

MySQL comes with as standard with client libraries for:

  

  

  

  

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

  

  

  

  

You are required to buy a license for MySQL if

  

  

  

  

  

How much character are allowed to create database name?

  

  

  

  

The result of a SELECT statement can contain duplicate rows.

  

  

  

MySQL supports the complete SQL99 standard

  

  

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

  

  

  

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

  

  

  

  

  

Commands passed to the MySQL daemon are written in.

  

  

  

  

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

  

  

  

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

  

  

Which authentications are required for login into 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" starts with an "a"?

  

  

  

  

  

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

  

  

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

  

  

  

  

How many TRIGGERS are allowed in MySql table?

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

How to view all Triggers in MySQL?

  

  

  

  

How is structure of a table got in MySQL?

  

  

  

  

What is Row?

  

  

  

  

Can I define multiple unique constraints on a table?

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

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

  

  

The "father" of MySQL is

  

  

  

  

What is DCL?

  

  

  

  

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

  

  

  

  

  

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

  

  

  

  

Which of the following is NOT available in MySQL?

  

  

  

  

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

  

  

  

  

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

  

  

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 a column named "FirstName" from a table named "Persons"?

  

  

  

Where is metadata stored in MySQL?

  

  

  

  

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

  

  

  

  

  

Can joins be nested?

  

  

Transactions are used to treat sets of SQL statements atomically.

  

  

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

  

  

  

  

The USE command?

  

  

  

  

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

  

  

  

  

MySql | Which of the following is available in MySQL:

  

  

  

  

  

A table may be joined to itself.

  

  

  

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

  

  

  

  

  

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

  

  

  

  

MySQL runs on which operating systems?

  

  

  

  

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

  

  

  

  

  

If you want to undo a GRANT, you should use

  

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

Which of the following is NOT supported by MySQL

  

  

  

  

The program called mysql is

  

  

  

  

  

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

  

  

  

  

Which of the following is not a character manipulation function?

  

  

  

  

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

  

  

  

  

When do we use a HAVING clause?

  

  

  

  

A NULL value is treated as a blank or 0.

  

  

  

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

  

  

  

  

MySQL Access security is controlled through?

  

  

  

  

A SELECT command without a WHERE clause returns?

  

  

  

  

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

  

  

  

  

Which of the following is not a MySQL Operator?

  

  

  

  

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

  

  

  

  

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

  

  

  

  

What does SQL stand for?

  

  

  

  

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

  

  

  

  

Which of the following is not an SQL aggregate function?

  

  

  

  

  

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

  

  

  

  

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

  

  

  

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

  

  

  

  

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.

  

  

Enum values are stored according to their index numbers

  

  

What is Table?

  

  

  

  

What is DDL?

  

  

  

  

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

  

  

  

  

Which statement is used to access an existing Database?

  

  

  

  

The “Mysql command line tool” formats are bounded by

  

  

  

  

What is DML?

  

  

  

  

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"?

  

  

  

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