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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How much storage space does DATETIME require?

  

  

  

  

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

  

  

  

  

What is DCL?

  

  

  

  

Which SQL statement is used to return only different values?

  

  

  

  

Can I call a trigger directly called from an application?

  

  

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

  

  

  

  

You are required to buy a license for MySQL if

  

  

  

  

  

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

  

  

  

  

Which of the following is NOT supported by MySQL

  

  

  

  

BLOB data type can have default column value.

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

A SELECT command without a WHERE clause returns?

  

  

  

  

Which function used to get the current time in mysql?

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

Can DISTINCT command be used for more than one column?

  

  

Which statement is used to access an existing Database?

  

  

  

  

A NULL value is treated as a blank or 0.

  

  

  

If you want to undo a GRANT, you should use

  

  

  

  

  

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?

  

  

  

  

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

  

  

  

  

  

What is Column?

  

  

  

  

MySQL Access security is controlled through?

  

  

  

  

Can I define multiple unique constraints on a table?

  

  

Which of the following is NOT available in MySQL?

  

  

  

  

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

  

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

The USE command?

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

  

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

  

  

  

  

  

Transactions are used to treat sets of SQL statements atomically.

  

  

What kind of replication is supported by the MySQL server?

  

  

  

  

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

  

  

  

  

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 film title?

  

  

  

  

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

  

  

  

  

A table may be joined to itself.

  

  

  

The “Mysql command line tool” formats are bounded by

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

MySQL is

  

  

  

  

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

  

  

  

  

Which of the following is not a MySQL Operator?

  

  

  

  

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

  

  

  

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

  

  

  

  

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.

  

  

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

  

  

  

  

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

  

  

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

  

  

  

  

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

  

  

  

  

Which of the following is not an SQL aggregate function?

  

  

  

  

  

How is structure of a table got in MySQL?

  

  

  

  

What is DDL?

  

  

  

  

Where is metadata stored in MySQL?

  

  

  

  

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

  

  

  

  

The program called mysql is

  

  

  

  

  

How many TRIGGERS are allowed in MySql table?

  

  

  

  

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

  

  

  

  

  

MySQL comes with as standard with client libraries for:

  

  

  

  

Which of the following is not a character manipulation function?

  

  

  

  

A user with RELOAD priveliges can

  

  

  

  

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

  

  

  

  

MySQL supports the complete SQL99 standard

  

  

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

  

  

  

  

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

  

  

  

  

What is a candidate key?

  

  

  

  

Enum values are stored according to their index numbers

  

  

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

  

  

  

  

The result of a SELECT statement can contain duplicate rows.

  

  

  

MySql | Which of the following is available in MySQL:

  

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

What is DML?

  

  

  

  

Which of the following is not a valid aggregate function?

  

  

  

  

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

  

  

  

  

What does SQL stand for?

  

  

  

  

The "father" of MySQL is

  

  

  

  

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"?

  

  

  

  

  

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

  

  

  

  

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  

  

  

  

  

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

  

  

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

  

  

  

  

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

  

  

  

  

What is Row?

  

  

  

  

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

  

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

How much character are allowed to create database name?

  

  

  

  

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