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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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 many TRIGGERS are allowed in MySql table?

  

  

  

  

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

  

  

  

  

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

  

  

  

  

  

A NULL value is treated as a blank or 0.

  

  

  

Transactions are used to treat sets of SQL statements atomically.

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

Commands passed to the MySQL daemon are written in.

  

  

  

  

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

  

  

  

  

If you want to undo a GRANT, you should use

  

  

  

  

  

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

  

  

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

  

  

  

  

In a SELECT with a GROUP BY clause, a WHERE clause, and a HAVING clause, the WHERE conditions are applied before the HAVING conditions.

  

  

  

  

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

  

  

  

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

  

  

  

  

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.

  

  

What is Column?

  

  

  

  

Which of the following is not a valid aggregate function?

  

  

  

  

What does SQL stand for?

  

  

  

  

What kind of replication is supported by the MySQL server?

  

  

  

  

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

  

  

  

  

A table may be joined to itself.

  

  

  

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

  

  

  

  

Which of the following is not a MySQL Operator?

  

  

  

  

What is Row?

  

  

  

  

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

  

  

  

  

USE keyword is used to select a ___________

  

  

  

  

How is structure of a table got in MySQL?

  

  

  

  

Enum values are stored according to their index numbers

  

  

Which SQL statement is used to return only different values?

  

  

  

  

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

  

  

  

  

The program called mysql is

  

  

  

  

  

You are required to buy a license for MySQL if

  

  

  

  

  

Which function used to get the current time in mysql?

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

How much character are allowed to create database name?

  

  

  

  

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

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

When do we use a HAVING clause?

  

  

  

  

MySQL is

  

  

  

  

BLOB data type can have default column value.

  

  

MySQL supports the complete SQL99 standard

  

  

The “Mysql command line tool” formats are bounded by

  

  

  

  

MySql | Which of the following is available in MySQL:

  

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

MySQL comes with as standard with client libraries for:

  

  

  

  

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

  

  

  

  

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

  

  

  

  

MySQL runs on which operating systems?

  

  

  

  

Where is metadata stored in MySQL?

  

  

  

  

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

  

  

  

  

  

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 DDL?

  

  

  

  

A user with RELOAD priveliges can

  

  

  

  

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

  

  

  

  

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

  

  

  

  

The USE command?

  

  

  

  

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

  

  

  

  

Can DISTINCT command be used for more than one column?

  

  

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

  

  

  

  

  

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

  

  

What is a candidate key?

  

  

  

  

Which of the following is not a character manipulation function?

  

  

  

  

Which of the following is not an SQL aggregate function?

  

  

  

  

  

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

  

  

  

  

What is Table?

  

  

  

  

Can joins be nested?

  

  

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

  

  

  

Which of these is not a valid name for a column

  

  

  

  

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

  

  

  

  

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

  

  

  

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

  

  

  

  

The result of a SELECT statement can contain duplicate rows.

  

  

  

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

  

  

  

  

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

  

  

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

  

  

  

  

Which of the following is not an SQL aggregate function?

  

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

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  

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

The "father" of MySQL is

  

  

  

  

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

  

  

  

  

MySQL Access security is controlled through?

  

  

  

  

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