What are the benefits of using default values-01329
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vu eng201 Business and Technical English Writing.
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vu eng201 Mid Term Solved Past Paper No. 6.
Default values are the values which are associated with a specific attribute and can help us to reduce the chances of inserting incorrect values in the attribute space. And also it can help us preventing the attribute value be left empty.
Default value
- Reduces the chances of entering incorrect attribute value
- Prevents attribute value to be left empty.
- Saves our time by reducing the typing works.
Range Control
Range control implemented over the data can be very easily achieved by using any data type. As the data type enforces the entry of data in the field according to the limitations of the data type.
Null Value Control
As we already know that a null value is an empty value and is distinct from zero and spaces, Databases can implement the null value control by using the different data types or their build in mechanisms.
Referential Integrity means to keep the input values for a specific attribute in specific limits in comparison to any other attribute of the same or any other relation.
