Data validation refers to the process of ensuring the accuracy and quality of data by building checks into systems or reports to verify logical consistency. There are several types of data validation including data type checks, code checks, range checks, format checks, consistency checks, and uniqueness checks to validate input and stored data meets requirements.

1. What is Data Validation?
•Data validation refers to the process of
ensuring the accuracy and quality of data. It is
implemented by building several checks into
a system or report to ensure the logical
consistency of input and stored data.
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2. Types of Data Validation
• Data Type Check
• Code Check
• Range Check
• Format Check
• Consistency Check
• Uniqueness Check
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