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

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
All of these
to redefine a column

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Introduction to Database System
A multiple-form file management system

lets you define different forms for different operations
lets you create a look-up form with an associated read-only password to prevent access by unauthorized users
allow you to entry data in all the forms
both (a) and (b)
None of these

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