QCE Digital Solutions Unit 3: Data structures and file formats
Students compare flat-file and relational data structures, learn the TXT, CSV, XML and JSON file formats and the array and record data structures, and choose formats and structures to suit a context.
One content description from the full QCE Digital Solutions Unit 3 — Real-World Problems and Solution Requirements journey. All 16 modules below are in that journey too, with the same content — add just these to a class, or the whole strand.
Modules (16)
1
What a single-table database is
2
The repeated-data problem in one big table
3
What is a relational database?
4
Primary key
5
Foreign key and table relationships
6
One-to-many relationships between tables
7
Why use a database instead of a spreadsheet
8
Plain text (TXT) files: structure
9
Delimited (CSV) files: structure
10
XML files: structure
11
JSON files: structure
12
Reasons for using TXT, CSV and XML data sources
13
One-dimensional arrays
14
Records: fields with different data types
15
Two-dimensional arrays
16
Choosing a data structure
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