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IST YEARLY EXAM REVISION (DATABASES (Components of a database (Record (One…
IST YEARLY EXAM REVISION
DATABASES
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SQL'S
SELECT
Field Names (Last name, first name age etc)
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DATA DICTIONARY
A Data Dictionary is used to help the database administrator and designer to illustrate and describe the fields and data types that will be required in the database. This is done to organise the data correctly as well as to assist the data entry operator to the specific data types required. Field sizes are also set correctly so that the size of the overall database can be determined for storage purposes.
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