Changing a value in a table column to null is prohibited if, when you created the table, you specified _____.
A) NOT NULL for the column
B) NULL for the column
C) a CHAR data type for the column
D) a NUMBER data type for the column
Correct Answer:
Verified
Q2: How do you use data from certain
Q3: You can use the existing value in
Q4: You can use the APPEND command to
Q5: Which command(s) can you use to delete
Q6: To add data from an existing table
Q8: Which command can you use to change
Q9: The DROP TABLE command creates an empty
Q10: Which command is used to display the
Q11: What command is used to delete rows
Q12: Using SQL, you can increase the length
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