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What is the use of Data validation commond. can you demonstare the example in common life?
Asked by Anil Kumar Last Modified
Answer 
Data validation is an important function available in Excel. It basically prevents any wrong input entry from the end of data entry operator or user. Most frequently used restrictions are as follows :
1) Enter the input data only through selection from a predetermined drop down list. This ensures zero spelling mistakes while entering.
2) Restrics data entry within a specified range of values (Say not below 10 or not more than 20). So, the said input data field rejects any input value entry which is not falling within that predefind data range.
3) Ensures Input data entry within specified dates or within a specified time period. So, the input data field acceps only the date entered which is falling in between the specified dates previously determined by the user (say within 01/01/18 to 30/09/18)
4) It ensures text data entry within a specified number of characters (Say upto 25 characters or letters).
Error message or warning messages can be displayed for any wrong input entry in data validated fields. It immensely helps the management to minimise error at the input data entry level while the volume of entry is huge and requires large number of persons to accomplish the job.
I have tried to explain the basic features of Data Validation and its usage, however handling some practical problems will bring more clarity about the concept.
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Awesh Bhornya
Certified Microsoft Office Specialist (Excel 2016) and Corporate Trainer with 10 yrs experience
Data validation is a very useful option while creating your spreadsheet or data model. It enables you to keep a check and avoid any wrong or unwanted entries right at the input level. To give you an example - during my consulting with a NGO the employees would enter names of the same hospital in different ways and with different spellings which became a hindrance to create reports and get the right idea of the operations of the NGO. In order to fix the problem I used List validation so as to make sure the user did not enter any wrong spelling and only those hospitals on the master list could be entered as an input
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Rajesh Pathak
Advanced Excel Corporate Trainer with 11+ years experience in corporate world in different domains.
Most common feature of data validation is 'list' which helps to create drop-down listing of texts or numbers. We can use this drop-down list separately or with functions and formulas. Data validation is also used to create restrictions on cell ranges for users to avoid erroneous entries.
I have a full course on data validation on my website www.specialskills.in
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