2.2 programming V2

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Mindmap am 2.2 programming V2, erstellt von liam oneill am 24/01/2019.
liam oneill
Mindmap von liam oneill, aktualisiert more than 1 year ago
liam oneill
Erstellt von liam oneill vor mehr als 6 Jahre
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Zusammenfassung der Ressource

2.2 programming V2
  1. variables, inputs, outputs and assignment
    1. programs accept inputs from the user
      1. processes it using constants and outputs to user
      2. we can label various inputs and constants
        1. this is known as assignment
          1. information is stored in locations called 'identifiers'
        2. it is called a 'variable' if it changes throughout the program
          1. allow programs to have different purposes
          2. but a 'constant' if it doesn't change
            1. any information that a program makes use of is stored in RAM
              1. RAM is divided in memory locations with long hexadecimal addresses
              2. example of a computer processing an input:
                1. input - people getting on bus
                  1. processing - bus moving along route
                    1. output - people getting off the bus for work
                2. parameters
                  1. used to pass information between functions or procedures
                3. variables : operators
                  1. Boolean - AND, OR, NOT
                    1. AND - two conditions must be true for statement to be true
                      1. OR - at least one of the values has to be correct
                        1. NOT - inverts the results
                        2. addition
                          1. subtraction
                            1. division
                              1. left
                                1. mid
                                  1. right
                                    1. modular division - how many times a number can go into another with a remainder
                                      1. integer division ignores the remainder
                                      2. SPLIT
                                        1. join
                                        2. iteration
                                          1. while
                                            1. for
                                              1. counter
                                                1. condition
                                                  1. boolean
                                                    1. iteration
                                                      1. break
                                                        1. nested iteration
                                                          1. stepping
                                                          2. Text files are used to store a variety of data: lists of names, logs of events, tables of data
                                                            1. String handling: to get the length of the string, to get a substring, the string will start with the 0th character, ascii conversion
                                                              1. Procedure: are sets of instructions stored under one name
                                                                1. Functions: are similar to procedures but always return a value to the main program.
                                                                  1. SQL- Standard Query Language
                                                                    1. SELECT
                                                                      1. FROM
                                                                        1. WHERE
                                                                          1. SCRUD
                                                                            1. search
                                                                              1. create
                                                                                1. read
                                                                                  1. update
                                                                                    1. delete
                                                                                2. Arrays
                                                                                  1. index
                                                                                    1. elements/items
                                                                                      1. dimensions
                                                                                        1. split
                                                                                          1. iterating
                                                                                            1. zero-based
                                                                                              1. empty array
                                                                                                1. removing
                                                                                                  1. overflow
                                                                                                    1. adding/removing data
                                                                                                    2. sub programs
                                                                                                      1. parameter
                                                                                                        1. function
                                                                                                          1. procedure
                                                                                                            1. argument
                                                                                                              1. variable
                                                                                                                1. program
                                                                                                                2. data types
                                                                                                                  1. variable
                                                                                                                    1. integer
                                                                                                                      1. real
                                                                                                                        1. boolean
                                                                                                                          1. character and string
                                                                                                                            1. casting
                                                                                                                              1. data types
                                                                                                                                1. character sets
                                                                                                                                  1. ASCII
                                                                                                                                    1. unicode
                                                                                                                                    2. file handling
                                                                                                                                      1. EOF-end of line
                                                                                                                                        1. EOL-end of line
                                                                                                                                          1. new line character
                                                                                                                                            1. file mode
                                                                                                                                              1. commit
                                                                                                                                                1. append
                                                                                                                                                  1. overwrite
                                                                                                                                                    1. tabulation
                                                                                                                                                      1. serialise
                                                                                                                                                        1. deserialise
                                                                                                                                                          1. delimeter
                                                                                                                                                            1. schema
                                                                                                                                                              1. SELECT
                                                                                                                                                                1. WHERE
                                                                                                                                                                  1. LIKE
                                                                                                                                                                    1. ORDER BY
                                                                                                                                                                      1. ascending
                                                                                                                                                                        1. descending
                                                                                                                                                                          1. SQL
                                                                                                                                                                            1. query
                                                                                                                                                                              1. criteria
                                                                                                                                                                                1. count
                                                                                                                                                                                  1. pattern
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