System Analysis and Design
On a systems flowchart, the online manual keeping of input data is identified by using the

online keyboard symbol
keeping operation symbols
online keyboard symbol
manual operation symbols

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System Analysis and Design
Data Definition Language (DDL)

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

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