12th Standard Syllabus & Materials
12th Standard
TN 12th Computer Applications மின்னணு தரவு பரிமாற்றம் Sample Question Papers Study Material - QB365 Set A
NEW12th Standard
TN 12th Computer Applications மின் - வணிக பாதுகாப்பு அமைப்புகள் Sample Question Papers Study Material - QB365 Set A
NEW12th Standard
TN 12th Computer Applications மின்னணு செலுத்தல் முறைகள் Sample Question Papers Study Material - QB365 Set A
NEW12th Standard
TN 12th Computer Applications மின் - வணிகம் Sample Question Papers Study Material - QB365 Set A
NEW12th Standard
TN 12th Computer Applications திறந்த மூல கருத்துருக்கள் Sample Question Papers Study Material - QB365 Set A
NEW12th Standard
TN 12th Computer Applications வலையமைப்பு வடமிடல் Sample Question Papers Study Material - QB365 Set A

Published on: 13/09/2022
QB365 provides a detailed and simple solution for every Possible Creative Questions in Class 12 Computer Science Subject - Data Manipulation Through SQL , English Medium. It will help Students to get more practice questions, Students can Practice these question papers in addition to score best marks.
Download Tamil Nadu 12th Standard Computer Science question papers, model tests, one-mark questions, important questions, and public exam papers in PDF format. Free study materials and answer keys for TN State Board students.
Questions + Answers key
Take MCQ Computer Science Test

1.
How cursor is performed in sqlite?
2.
What is symbol?
3.
How will you add the new record in the existing table?
4.
Write the features of the SQLite?
5.
What is SQLite?
6.
What is database?
7.
How the SQL DISTINCT class is helpful to you?
8.
How the cursor object is created?
9.
Write the placeholders which supported by SQlite3 module Execute.
10.
Write a note or cursor. description.
11.
What is the use of AND, OR operators combined with WHERE clause?
12.
How will you sort the data in a table in an ordered way?
13.
What is master table?
14.
What is the reason behind defining a SQL command with triple quotes?
15.
What is a cursor in SQL and databases?
1.
A cursor in SQL and databases is a control structure to traverse over the records in a database. So its used for the fetching of the resul. Cursor is used for performing all SQL commands.
2.
Symbol is used to print the list of all elements in a single line with space. To print all elements in newlines or separated by space use sep = "\n" or sep =", " respectively.
3.
To populate the table "INSERT" command is passed to SQLite."execute" method executes the SQL command to pertorm some action.
4.
SQLite is fast rigorously tested, and flexible, making it easier to work. Python has a native library for SQLite.
5.
SQLite is a simple relational database system, which saves its data in regular data files or even in the internal memory of the computer. It is designed to be embedded in applications.
6.
A database is an organized collection of data. The term "database" can both refer to the data themselves or to the database management system.
7.
The DISTINCT clause is helpful when there is need of avoiding the duplicate values present in any specific columns/table. When we use distinct keyword only the unique values are fetched.
8.
The cursor object is created by calling the cursor ( ) method of connection. The cursor is used to traverse the records from the result set.
9.
Execute (sql[, parameters]) :
(i) Executes a single SQL statement. The SQL statement may be parameterized (i.e. placeholders instead of SQL literals).
(ii) The SQlite3 module supports two kinds of placeholders: question marks? ("qmark style") and named placeholders: name ("named style").
10.
cursor. description contains the details of each column headings. It will be stored as a tuple and the first one that is 0(zero) index refers to the column name. Using this command you can display the table's Field names.
11.
(i) The WHERE clause can be combined with AND, OR, and NOT operators.
(ii) The AND and OR operators are used to filter records based on more than one condition.
12.
(i) The ORDER BY clause can be used along with the SELECT statement to sort the data of specific fields in an ordered way.
(ii) It is used to sort the result-set in ascending or descending order.
13.
SQlite_master is the master table which holds the key information about your database tables.
14.
The reason behind the triple quotes is sometime the values in the table might contain single or double quotes.
15.
(i) A cursor in SQL and databases is a control structure to traverse over the records in a database. So it's used for the fetching of the results.
(ii) The cursor object is created by calling the cursor( ) method of connection. The cursor is used to traverse the records from the result set.
12th Standard Syllabus & Materials
12th Standard
TN 12th Computer Applications களப்பெயர் முறைமை (DNS) Sample Question Papers Study Material - QB365 Set A
NEW12th Standard
TN 12th Computer Applications வலையமைப்பு எடுத்துக்காட்டுகள் மற்றும் நெறிமுறைகள் Sample Question Papers Study Material - QB365 Set A
NEW12th Standard
TN 12th Computer Applications கணினி வலையமைப்பு ஓர் அறிமுகம் Sample Question Papers Study Material - QB365 Set A
NEW12th Standard
TN 12th Computer Applications PHP-உடன் MySQL-ஐ இணைத்தல் Sample Question Papers Study Material - QB365 Set A
Tamilnadu Stateboard 12th Standard Subjects

Maths

Chemistry

Physics

Biology

Computer Science

Business Maths and Statistics

Economics

Commerce

Accountancy

History

Computer Applications

Biology

Computer Technology

Computer Applications

Computer Science

Business Maths and Statistics

Commerce

Economics

Maths

Chemistry

Physics

Computer Technology

History

Accountancy

Tamil

English

French
Tamilnadu Stateboard Standards