Given the following value from a VARCHAR column that is used to store integer values: 12A Which of the following is the best way for a DBA to increase the data quality for this column?

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Database Management and Maintenance

Question

Given the following value from a VARCHAR column that is used to store integer values:

12A Which of the following is the best way for a DBA to increase the data quality for this column?

Options

AKeep the value and change the column to integer.
BCorrect the value and change it to integer.
CAdd a check constraint to the column and change it to int.
DKeep the column as VARCHAR and correct the value.

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Topics

#Check constraints#Data type conversion#Data quality validation#Integer validation

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