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Title: When modifying data in existing columns, which of the following is correct? Post by: Micky5490! on Jan 31, 2018 When modifying data in existing columns, which of the following is correct?
a. A column must be as wide as the data it already contains. b. If a NUMBER column already contains data, its precision and scale can be decreased. c. Changing the default value of a column will change the values of data already in a table. d. If a NUMBER column is empty, its precision and scale cannot be changed. Title: When modifying data in existing columns, which of the following is correct? Post by: Beka128 on Jan 31, 2018 Content hidden
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