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

  

  

  

  

What kind of replication is supported by the MySQL server?

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

The “Mysql command line tool” formats are bounded by

  

  

  

  

The "father" of MySQL is

  

  

  

  

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

  

  

  

  

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

  

  

  

  

Which of the following can add a row to a 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.

  

  

  

  

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

  

  

  

  

  

If you want to undo a GRANT, you should use

  

  

  

  

  

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

  

  

  

  

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

  

  

  

  

Which of the following is NOT supported by MySQL

  

  

  

  

MySQL Access security is controlled through?

  

  

  

  

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"?

  

  

  

What is Table?

  

  

  

  

Which of the following is not a character manipulation function?

  

  

  

  

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

  

  

A SELECT command without a WHERE clause returns?

  

  

  

  

When do we use a HAVING clause?

  

  

  

  

MySql | Which of the following is available in MySQL:

  

  

  

  

  

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?

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

Which SQL statement is used to return only different values?

  

  

  

  

Which of the following is not a MySQL Operator?

  

  

  

  

USE keyword is used to select a ___________

  

  

  

  

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

  

  

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

  

  

  

  

Commands passed to the MySQL daemon are written in.

  

  

  

  

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

  

  

  

Which statement is used to access an existing Database?

  

  

  

  

What is DML?

  

  

  

  

MySQL supports the complete SQL99 standard

  

  

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.

  

  

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

  

  

  

  

________ 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?

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

A user with RELOAD priveliges can

  

  

  

  

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:

  

  

  

  

  

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

  

  

  

  

Which function used to get the current time in mysql?

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

Can joins be nested?

  

  

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

  

  

  

  

  

Can I define multiple unique constraints on a table?

  

  

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

  

  

  

  

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 all the records from a table named "Persons" where the value of the column "FirstName" starts with an "a"?

  

  

  

  

  

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

  

  

  

  

How many TRIGGERS are allowed in MySql table?

  

  

  

  

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

  

  

  

  

  

MySQL comes with as standard with client libraries for:

  

  

  

  

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

  

  

  

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

  

  

Which of these is not a valid name for a column

  

  

  

  

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

  

  

  

  

How much character are allowed to create database name?

  

  

  

  

What is DCL?

  

  

  

  

Transactions are used to treat sets of SQL statements atomically.

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

What is Row?

  

  

  

  

A NULL value is treated as a blank or 0.

  

  

  

How to view all Triggers in MySQL?

  

  

  

  

Which of the following is not an SQL aggregate function?

  

  

  

  

  

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

  

  

  

  

What is Column?

  

  

  

  

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

  

  

  

  

Enum values are stored according to their index numbers

  

  

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

  

  

  

  

MySQL runs on which operating systems?

  

  

  

  

What is a candidate key?

  

  

  

  

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

  

  

  

  

  

MySQL is

  

  

  

  

Where is metadata stored in MySQL?

  

  

  

  

Which of the following is not a valid aggregate function?

  

  

  

  

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

  

  

  

  

The result of a SELECT statement can contain duplicate rows.

  

  

  

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