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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Transactions are used to treat sets of SQL statements atomically.

  

  

MySQL runs on which operating systems?

  

  

  

  

The USE command?

  

  

  

  

What is Table?

  

  

  

  

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

  

  

  

  

Can DISTINCT command be used for more than one column?

  

  

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

  

  

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

  

  

  

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

  

  

  

  

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

  

  

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

  

  

  

  

Which of the following is not a MySQL Operator?

  

  

  

  

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

  

  

  

  

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 taking “server side help” in Mysql command line tool

  

  

  

  

Enum values are stored according to their index numbers

  

  

How much character are allowed to create database name?

  

  

  

  

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

  

  

  

  

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

  

  

  

  

What is Column?

  

  

  

  

Can I call a trigger directly called from an application?

  

  

Which of the following is not an SQL aggregate function?

  

  

  

  

  

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

  

  

  

  

  

USE keyword is used to select a ___________

  

  

  

  

Which of the following is not a valid aggregate function?

  

  

  

  

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

  

  

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

  

  

  

  

MySql | Which of the following is available in MySQL:

  

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

Which of the following is NOT supported by MySQL

  

  

  

  

A NULL value is treated as a blank or 0.

  

  

  

The “Mysql command line tool” formats are bounded by

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

Which of the following is not an SQL aggregate function?

  

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

BLOB data type can have default column value.

  

  

A table may be joined to itself.

  

  

  

The result of a SELECT statement can contain duplicate rows.

  

  

  

What kind of replication is supported by the MySQL server?

  

  

  

  

How is structure of a table got in MySQL?

  

  

  

  

The "father" of MySQL is

  

  

  

  

Which SQL statement is used to return only different values?

  

  

  

  

What is DML?

  

  

  

  

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

  

  

  

  

A SELECT command without a WHERE clause returns?

  

  

  

  

What is DCL?

  

  

  

  

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

  

  

  

  

How to view all Triggers in MySQL?

  

  

  

  

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 function used to get the current time in mysql?

  

  

  

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

  

  

  

  

  

MySQL is

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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?

  

  

What is Row?

  

  

  

  

Commands passed to the MySQL daemon are written in.

  

  

  

  

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

  

  

  

  

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

  

  

  

  

  

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

  

  

  

  

If you want to undo a GRANT, you should use

  

  

  

  

  

The program called mysql is

  

  

  

  

  

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

  

  

  

  

What does SQL stand for?

  

  

  

  

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

  

  

  

  

MySQL Access security is controlled through?

  

  

  

  

You are required to buy a license for MySQL if

  

  

  

  

  

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

  

  

  

  

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

  

  

  

  

  

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

  

  

  

  

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

  

  

  

  

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

  

  

  

  

How many TRIGGERS are allowed in MySql table?

  

  

  

  

Which statement is used to access an existing Database?

  

  

  

  

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

  

  

  

  

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

  

  

  

Can joins be nested?

  

  

MySQL comes with as standard with client libraries for:

  

  

  

  

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 SQL statement is used to update data in a database?

  

  

  

  

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

  

  

  

  

How much storage space does DATETIME require?

  

  

  

  

MySQL supports the complete SQL99 standard

  

  

What is DDL?

  

  

  

  

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

  

  

  

  

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

  

  

  

  

Where is metadata stored in MySQL?

  

  

  

  

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