System Analysis and Design
The mistake, committed by interchanging two digits in a numeric held, during data entry, is called

Beta testing error
transcription error
Alpha testing error
transposition error

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System Analysis and Design
Data manipulation language (DML)

all of the listed here
determine how data must be structured to produce the user's view
describes how data are structured in the data base
specifies for the DBMS what is required; the techniques used to process data

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