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Designing the fields in the data base
The following are the considerations one has to remain in mind while designing the fields in the data base.
- Range control
- Null value control
- Referential integrity
- Trigger a report listing missing values
- Substitute an estimate of the missing value
- In programs, ignore missing data unless the value is significant.
What are the technique to define a schema completely ? A schema is completely define by DDL and DML query language.
WHAT IS DATABASE TECHNOLOGIES
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