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Knowledge organisers/GCSE Computer Science (J277)/Additional Programming Techniques

OCR J277 Paper 2 · 2.2.3

Additional Programming Techniques

String manipulation, arrays, functions, procedures, and basic SQL commands

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Revision notes

  • a.The use of basic string manipulation: Concatenation
  • b.The use of basic string manipulation: slicing
  • c.The use of basic file handling operations: Open, Read, Write, Close
  • d.The use of records to store data
  • e.The use of SQL to search for data
  • f.The use of arrays (or equivalent) when solving problems: one-dimensional (1D)
  • g.The use of arrays (or equivalent) when solving problems: two-dimensional arrays(2D)
  • h.How to use sub programs (functions and procedures) to produce structured code
  • i.Functions and Procedures: local variables
  • j.Functions and Procedures: global variables
  • k.Functions and Procedures: arrays
  • l.Random number generation