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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A user with RELOAD priveliges can

  

  

  

  

Which of these is not a valid name for a column

  

  

  

  

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

  

  

  

  

How many TRIGGERS are allowed in MySql table?

  

  

  

  

BLOB data type can have default column value.

  

  

Which statement is used to access an existing Database?

  

  

  

  

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

  

  

  

  

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

  

  

  

  

USE keyword is used to select a ___________

  

  

  

  

Commands passed to the MySQL daemon are written in.

  

  

  

  

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

  

  

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

  

  

  

  

  

Where is metadata stored in MySQL?

  

  

  

  

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

  

  

  

  

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

  

  

  

  

Transactions are used to treat sets of SQL statements atomically.

  

  

The “Mysql command line tool” formats are bounded by

  

  

  

  

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

  

  

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

  

  

  

  

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

  

  

  

  

  

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

  

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

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

  

  

  

  

How to view all Triggers 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"?

  

  

  

How much storage space does DATETIME require?

  

  

  

  

The result of a SELECT statement can contain duplicate rows.

  

  

  

What is Column?

  

  

  

  

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

  

  

  

  

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

  

  

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

  

  

  

  

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 DDL?

  

  

  

  

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

  

  

  

  

Which SQL statement is used to return only different values?

  

  

  

  

MySQL comes with as standard with client libraries for:

  

  

  

  

When do we use a HAVING clause?

  

  

  

  

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

  

  

  

  

  

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

  

  

  

  

Can I call a trigger directly called from an application?

  

  

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

  

  

  

  

Can joins be nested?

  

  

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

  

  

  

  

What is Row?

  

  

  

  

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

  

  

  

  

Can I define multiple unique constraints on a table?

  

  

Which of the following is NOT supported by MySQL

  

  

  

  

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

  

  

  

How is structure of a table got in MySQL?

  

  

  

  

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

  

  

  

  

MySQL is

  

  

  

  

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

  

  

  

  

Which of the following is not an SQL aggregate function?

  

  

  

  

  

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.

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

MySql | Which of the following is available in MySQL:

  

  

  

  

  

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

  

  

  

  

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

  

  

  

  

What is a candidate key?

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

Which of the following is not a valid aggregate function?

  

  

  

  

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

  

  

  

  

What does SQL stand for?

  

  

  

  

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

  

  

  

  

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

  

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

Which of the following is not a MySQL Operator?

  

  

  

  

MySQL supports the complete SQL99 standard

  

  

If you want to undo a GRANT, you should use

  

  

  

  

  

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 of the following is not a character manipulation function?

  

  

  

  

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

  

  

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

  

  

  

How much character are allowed to create database name?

  

  

  

  

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

  

  

  

  

MySQL Access security is controlled through?

  

  

  

  

MySQL runs on which operating systems?

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

What kind of replication is supported by the MySQL server?

  

  

  

  

Which of the following is not an SQL aggregate function?

  

  

  

  

  

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

  

  

  

  

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

  

  

  

  

Enum values are stored according to their index numbers

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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