What is Object Relational Impedance Mismatch?

Object Relational Impedance Mismatch (ORIM) is also known as paradigm mismatch. It means that Object model and Relational model do not work well with each other.

Relational model or a RDBMS represents data in tabular format like a spreadsheet. Object model or OOPS represents the data as an inter-connected graph of objects.

Mixing these two models leads to various problems. The common name for these issues is Object Relational Impedance Mismatch.

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