☰ Contents · Computing

Databases and the DBMS

Lessons 20–21 · 2 lessons · N. I. Taylaqov (general editor), A. B. Akhmedov, M. D. Pardayeva, A. A. Abdug‘aniyev, U. M. Mirsanov. Informatics and Information Technologies, Grade 10, 1st edition. “Extremum-Press”, Tashkent, 2017
Answers are for parents and teachers.
1
Describe in text a hierarchical model tree for school students in 3 levels.
2
How many cells does a table with 8 columns and 25 rows have?
3
Give one example from life for a network model.
4
When is a DBMS chosen instead of Excel? Write two reasons.
5
Structure this unstructured entry: “Dilnoza Ergasheva, 10-A, 2010, Bukhara”.