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&nbsp; &nbsp; &nbsp; &nbsp;As we all now that using the database oriented programming software such as vfp , vb..... can implement the concept of primary key, secondary key or even foreign key in order to reduce the redundancy of data. That means this can simplyied our way of storing data. Is there any keywords or fucntions that allow such features to be implemented in pascal?<br />
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&nbsp; &nbsp; &nbsp; Another question is that, is it possible to implement the concept of &nbsp;relations (e.g. one to one, one to many or many to many) in pascal. That is my question, i hope someone can give me a comment regarding this issue. Thanks!!!!!! &nbsp;<br />
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       As we all now that using the database oriented programming software such as vfp , vb..... can implement the concept of primary key, secondary key or even foreign key in order to reduce the redundancy of data. That means this can simplyied our way of storing data. Is there any keywords or fucntions that allow such features to be implemented in pascal?

      Another question is that, is it possible to implement the concept of  relations (e.g. one to one, one to many or many to many) in pascal. That is my question, i hope someone can give me a comment regarding this issue. Thanks!!!!!!  



Is it possible to implement primary, foreign key concept in pascal?

Pascal is an influential imperative and procedural programming language, largely (but not exclusively) intended to teach students structured programming and data structuring. Pasca was implemented on a wide range of architectures, from early PCs to mainframes. Pascal derivatives include OOP-based Object Pascal (used in Delphi and Lazarus/Free Pascal). Pascal is a purely procedural language and includes control statements with reserved words, but has many data structuring facilities and other abstractions like type definitions, records, pointers, enumerations, and sets.