Oracle
1Z0-061 · Question #51
1Z0-061 Question #51: Real Exam Question with Answer & Explanation
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Question
You issue the following command to alter the country column in the departments table: Which statement is true?
Options
- AIt produces an error because column definitions cannot be altered to add default values.
- BIt executes successfully and all the rows that have a null value for the country column will be updated
- CIt executes successfully. The modification to add the default value takes effect only from subsequent
- DIt produces an error because the data type for the column is not specified.
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