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 not a valid name for a column

  

  

  

  

The "father" of MySQL is

  

  

  

  

MySQL Access security is controlled through?

  

  

  

  

Can DISTINCT command be used for more than one column?

  

  

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

  

  

  

  

MySQL runs on which operating systems?

  

  

  

  

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

  

  

  

  

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

  

  

  

  

Which of the following is not an SQL aggregate function?

  

  

  

  

  

The “Mysql command line tool” formats are bounded by

  

  

  

  

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

  

  

  

  

What is DML?

  

  

  

  

Commands passed to the MySQL daemon are written in.

  

  

  

  

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:

  

  

  

  

Transactions are used to treat sets of SQL statements atomically.

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

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

  

  

  

  

Which SQL statement is used to return only different values?

  

  

  

  

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

  

  

  

MySQL is

  

  

  

  

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

  

  

  

  

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

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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"?

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

How to view all Triggers in MySQL?

  

  

  

  

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

  

  

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

  

  

  

  

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  

  

  

  

  

A NULL value is treated as a blank or 0.

  

  

  

Which of the following is NOT available in MySQL?

  

  

  

  

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

  

  

  

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

  

  

  

  

  

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

  

  

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

  

  

  

  

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

  

  

  

  

The USE command?

  

  

  

  

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

  

  

  

  

The program called mysql is

  

  

  

  

  

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

  

  

  

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

  

  

  

  

Where is metadata stored in MySQL?

  

  

  

  

USE keyword is used to select a ___________

  

  

  

  

Which of the following is not a character manipulation function?

  

  

  

  

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

  

  

  

  

  

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

  

  

  

  

How much character are allowed to create database name?

  

  

  

  

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

  

  

  

  

What does SQL stand for?

  

  

  

  

You are required to buy a license for MySQL if

  

  

  

  

  

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

  

  

  

  

What is Table?

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

What is a candidate key?

  

  

  

  

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

  

  

  

  

  

What is DCL?

  

  

  

  

Can I define multiple unique constraints on a table?

  

  

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

  

  

  

  

If you want to undo a GRANT, you should use

  

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

  

What is Row?

  

  

  

  

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

  

  

  

  

MySql | Which of the following is available in MySQL:

  

  

  

  

  

Which of the following is not an SQL aggregate function?

  

  

  

  

  

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

  

  

  

  

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

  

  

  

  

BLOB data type can have default column value.

  

  

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

  

  

  

  

Enum values are stored according to their index numbers

  

  

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

  

  

  

  

  

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

  

  

  

  

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

  

  

  

  

Which of the following is NOT supported by MySQL

  

  

  

  

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

  

  

  

  

MySQL comes with as standard with client libraries for:

  

  

  

  

MySQL supports the complete SQL99 standard

  

  

Which function used to get the current time in mysql?

  

  

  

A SELECT command without a WHERE clause returns?

  

  

  

  

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

  

  

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

  

  

  

  

  

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

  

  

  

  

What is DDL?

  

  

  

  

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 valid aggregate function?

  

  

  

  

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

  

  

  

  

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

  

  

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

  

  

  

  

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