Introduction to Database System
A file produced by a spreadsheet

can be used as it by the DBMS
is generally stored on disk in an ASCII text format
all of the listed here
can be used for graphic

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Introduction to Database System
In SQL, the CREATE TABLE is used

All of these
to create a table, defining its columns, integrity constrains, and storage allocation
to add a column/integrity constraint to a table
to change a table's storage characteristics
to redefine a column

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