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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What kind of replication is supported by the MySQL server?

  

  

  

  

MySQL Access security is controlled through?

  

  

  

  

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

  

  

  

  

A SELECT command without a WHERE clause returns?

  

  

  

  

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

  

  

  

  

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

  

  

  

  

The “Mysql command line tool” formats are bounded by

  

  

  

  

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

  

  

  

  

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

  

  

  

  

  

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

  

  

  

  

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.

  

  

If you want to undo a GRANT, you should use

  

  

  

  

  

Which of the following is not a MySQL Operator?

  

  

  

  

You are required to buy a license for MySQL if

  

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

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

  

  

  

  

  

MySQL supports the complete SQL99 standard

  

  

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

  

  

  

  

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

  

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

  

Can I define multiple unique constraints on a table?

  

  

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

  

  

  

  

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

  

  

  

  

The result of a SELECT statement can contain duplicate rows.

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

How to view all Triggers in MySQL?

  

  

  

  

MySQL comes with as standard with client libraries for:

  

  

  

  

The USE command?

  

  

  

  

Which of the following is not an SQL aggregate function?

  

  

  

  

  

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

  

  

  

  

What is DCL?

  

  

  

  

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

  

  

  

  

Which of the following is NOT available in MySQL?

  

  

  

  

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

  

  

  

  

Enum values are stored according to their index numbers

  

  

What is a candidate key?

  

  

  

  

How much storage space does DATETIME require?

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

A user with RELOAD priveliges can

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

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

  

  

  

  

BLOB data type can have default column value.

  

  

What is Column?

  

  

  

  

Which function used to get the current time in mysql?

  

  

  

MySQL runs on which operating systems?

  

  

  

  

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

  

  

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

  

  

  

  

How many TRIGGERS are allowed in MySql table?

  

  

  

  

Which of the following is not a character manipulation function?

  

  

  

  

A NULL value is treated as a blank or 0.

  

  

  

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

  

  

  

  

How much character are allowed to create database name?

  

  

  

  

Transactions are used to treat sets of SQL statements atomically.

  

  

Which of the following is NOT supported by MySQL

  

  

  

  

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

  

  

Can joins be nested?

  

  

Which of the following is not a valid aggregate function?

  

  

  

  

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

  

  

  

  

Where is metadata stored in MySQL?

  

  

  

  

What is DDL?

  

  

  

  

A table may be joined to itself.

  

  

  

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

  

  

  

  

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

  

  

  

The "father" of MySQL is

  

  

  

  

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

  

  

  

  

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

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

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

  

  

  

  

What is DML?

  

  

  

  

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

  

  

  

  

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

  

  

  

  

Which statement is used to access an existing Database?

  

  

  

  

What 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 value of the column "FirstName" starts with an "a"?

  

  

  

  

  

What is Table?

  

  

  

  

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

  

  

  

  

What is Row?

  

  

  

  

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