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CBSE NCERT Exercise Solution of Class 11 Informatics Practices Chapter 8 – Introduction to Structured Query Language (SQL) A quick revision • Database is a collection of related tables. MySQL is a ‘relational’ DBMS. A table is a collection of rows and columns, where each row is a record and columns describe the feature of […]
CBSE NCERT Exercise Solution of Class 11 Informatics Practices Chapter 7 – Database Concepts A quick revision File : A file in a file system is a container to store data in a computer.Disadvantage of File System : File system suffers from Data Redundancy, Data Inconsistency, Data Isolation, Data Dependence and Controlled Data sharing.DBMS :
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NCERT Solution of Class 11 Informatics Practices Chapter 3 – Brief Overview of Python 1. Which of the following identifier names are invalid and why? (a) Serial_no. (b) 1st_Room (c) Hundred$ (d) Total Marks (e) Total_Marks (f) total-Marks (g) _Percentage (h) True Answer: – Valid Identifiers are : (e) Total_Marks and (g) _Percentage Invalids Identifiers
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NCERT Book Class 11 Computer Science Ch-1 Computer System solution, It is helpful for class 11 Computer Science students. Teachers can use it as reference material.
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