Read and download free pdf of CBSE Class 12 Informatics Practices MYSQL Revision Tour Assignment. Get printable school Assignments for Class 12 Informatics Practices. Class 12 students should practise questions and answers given here for Mysql Informatics Practices in Class 12 which will help them to strengthen their understanding of all important topics. Students should also download free pdf of Printable Worksheets for Class 12 Informatics Practices prepared as per the latest books and syllabus issued by NCERT, CBSE, KVS and do problems daily to score better marks in tests and examinations
Assignment for Class 12 Informatics Practices Mysql
Class 12 Informatics Practices students should refer to the following printable assignment in Pdf for Mysql in Class 12. This test paper with questions and answers for Class 12 Informatics Practices will be very useful for exams and help you to score good marks
Mysql Class 12 Informatics Practices Assignment
MYSQL REVISION TOUR
SOLVED QUESTIONS
1. What do you mean by a Database Management System?
Ans- Database Management is a collection of programs and files that allow a user to define structure of a database, store data into it, modify the structure and manipulate the data.
2. What do you mean by Relational database?
Ans-Relational Database is a type of database in which relation is used as its basic element.Row and columns are used to store data.
3. What is a foreign key?
Ans If a key is available in a table as a primary key then this key is called foreign key in another table.
4. What is primary key?
Ans-Primary key is a unique key in a relation which can uniquely identifies a tuple (row) in a given relation.
5. What is SQL?
Ans-SQL is stands for structured query language. This language is used to manipulate data stored in a table.
6. What is referential integrity?
Ans-This is a rule which ensures that in DBMS relationships between records in related tables are valid. And that user don’t accidently delete or change related data.
7. What is MySql?
Ans-Mysql is an open source RDBMS which uses SQL.
8. What is DDL?
Ans- DDL provides commands to define or redefine the schema of a table.Table is created,altered and dropped using DDL.
9. What are DML commands?
Ans- DML commands are used to manipulate data stored in a table.Insertion, deletion and modifications are possible using DML commands.
10. Maximum how many characters can be stored in a (i) text literals (ii) numeric literal
Ans-(i) Text literals can have 4000 bytes (ii) A numeric literals can store 53 digits.
11. What is null value in MySql?
Ans-If a column in a row has no value, then column is said to be null.
12. Which keyword eliminates redundant data in from a query result?
Ans- DISTINCT
13. How would you display system date as the result of a query?
Ans- CURDATE()
14. What is NOW() function in MySql?
Ans- It returns the current date and time.
15. What is NOT NULL constraint?
Ans- NOT NULL constraints impose a condition that value of a row cannot be left blank.
16. What is error in following statement? UPDATE EMPL;
Ans- WHERE clause is missing in given query.
Please refer to attached file for CBSE Class 12 Informatics Practices MYSQL Revision Tour Assignment
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CBSE Class 12 Informatics Practices Mysql Assignment
We hope you liked the above assignment for Mysql which has been designed as per the latest syllabus for Class 12 Informatics Practices released by CBSE. Students of Class 12 should download and practice the above Assignments for Class 12 Informatics Practices regularly. We have provided all types of questions like MCQs, short answer questions, objective questions and long answer questions in the Class 12 Informatics Practices practice sheet in Pdf. All questions have been designed for Informatics Practices by looking into the pattern of problems asked in previous year examinations.
Assignment for Informatics Practices CBSE Class 12 Mysql
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Mysql Assignment Informatics Practices CBSE Class 12
All questions and their answers for the assignment given above for Class 12 Informatics Practices have been developed as per the latest curriculum and books issued for the current academic year. The students of Class 12 can rest assured that the best teachers have designed the questions of Informatics Practices so that you are able to revise the entire syllabus if you do the assignments. Lot of MCQ questions for Class 12 Informatics Practices have also been given in the worksheets and assignments for regular use. All study material for Class 12 Informatics Practices students have been given on studiestoday.
Mysql Assignment CBSE Class 12 Informatics Practices
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CBSE Informatics Practices Class 12 Mysql Assignment
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