Data Validation Command With Date || Data Validation || Data Validation with Date || Ahsan Mughal

Range validation: Validate that the date falls within an acceptable range. For example, you can check if the date is not too far in the past or future.
Format validation: Verify that the date is entered in the correct format. This includes checking if it follows a specific date format, such as "YYYY-MM-DD" or "MM/DD/YYYY."
Leap year handling: Take into account leap years when validating dates. Ensure that the date is valid within the context of a leap year, considering the presence of February 29.
Consistency validation: Check for consistency between related dates. For example, if you have a start date and an end date, validate that the end date is not earlier than the start date.
Business rule validation: Apply domain-specific rules to validate dates. This might involve checking if a date falls on a weekend, if it aligns with specific business requirements, or if it corresponds to a known holiday.
Cross-field validation: Perform validations that involve multiple date fields. For instance, ensuring that the end date of an event is after the start date.
Date parsing and error handling: Implement robust date parsing mechanisms to handle different date input formats. Provide clear error messages when invalid dates are encountered, helping users understand the issue and correct it.
Time zone considerations: If your application deals with dates across different time zones, ensure that date validation takes time zones into account. Handle conversions and daylight saving time adjustments correctly.
Integration with external data sources: When working with dates obtained from external sources, validate the data to ensure its accuracy and compatibility with your system's requirements.
Data cleansing and normalization: Perform data cleansing techniques to identify and correct any inconsistencies or anomalies in date values. Normalize dates to a standardized format for better data consistency.