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 result of a SELECT statement can contain duplicate rows.

  

  

  

The “Mysql command line tool” formats are bounded by

  

  

  

  

Which of the following is not a MySQL Operator?

  

  

  

  

Which of these is not a valid name for a column

  

  

  

  

A table may be joined to itself.

  

  

  

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

  

  

  

  

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

  

  

  

  

MySQL comes with as standard with client libraries for:

  

  

  

  

Commands passed to the MySQL daemon are written in.

  

  

  

  

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

  

  

  

  

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 is NOT supported by MySQL

  

  

  

  

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

  

  

  

  

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

  

  

  

  

How much storage space does DATETIME require?

  

  

  

  

USE keyword is used to select a ___________

  

  

  

  

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

  

  

  

  

  

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 can you delete the records where the "FirstName" is "Peter" in the Persons Table?

  

  

  

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

  

  

  

  

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

  

  

  

  

  

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

  

  

  

  

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

  

  

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

  

  

  

  

Which of the following is NOT available in MySQL?

  

  

  

  

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

  

  

  

  

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.

  

  

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  

  

  

  

  

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

  

  

  

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

  

  

Which of the following is not a character manipulation function?

  

  

  

  

How much character are allowed to create database name?

  

  

  

  

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"?

  

  

  

MySQL supports the complete SQL99 standard

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

Can DISTINCT command be used for more than one column?

  

  

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

  

  

  

  

You are required to buy a license for MySQL if

  

  

  

  

  

Which of the following is not an SQL aggregate function?

  

  

  

  

  

A NULL value is treated as a blank or 0.

  

  

  

The USE command?

  

  

  

  

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

  

  

  

  

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

  

  

  

The "father" of MySQL is

  

  

  

  

How is structure of a table got in MySQL?

  

  

  

  

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?

  

  

  

  

MySql | Which of the following is available in MySQL:

  

  

  

  

  

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

  

  

  

  

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

  

  

  

  

What is Column?

  

  

  

  

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

  

  

  

  

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

  

  

Which function used to get the current time in mysql?

  

  

  

Transactions are used to treat sets of SQL statements atomically.

  

  

BLOB data type can have default column value.

  

  

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

  

  

  

  

What does SQL stand for?

  

  

  

  

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

  

  

  

  

What is DML?

  

  

  

  

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"?

  

  

  

  

  

What is a candidate key?

  

  

  

  

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

  

  

  

  

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

  

  

  

  

Which statement is used to access an existing Database?

  

  

  

  

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

  

  

Can joins be nested?

  

  

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

  

  

  

  

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

  

  

Which SQL statement is used to return only different values?

  

  

  

  

How many TRIGGERS are allowed in MySql table?

  

  

  

  

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

  

  

  

  

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

  

  

  

  

What is DCL?

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

What kind of replication is supported by the MySQL server?

  

  

  

  

How to view all Triggers in MySQL?

  

  

  

  

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

  

  

  

  

  

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

  

  

  

  

  

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

  

  

  

  

Where is metadata stored in MySQL?

  

  

  

  

Which of the following is not an SQL aggregate function?

  

  

  

  

  

What is DDL?

  

  

  

  

________ 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 "FirstName" is "Aru" and the "LastName" is "Sum"?

  

  

  

  

A user with RELOAD priveliges can

  

  

  

  

Can I define multiple unique constraints on a table?

  

  

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

  

  

  

  

  

What is Table?

  

  

  

  

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"?

  

  

  

  

When do we use a HAVING clause?

  

  

  

  

The program called mysql is

  

  

  

  

  

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

  

  

  

  

  

If you want to undo a GRANT, you should use

  

  

  

  

  

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