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A few examples of this is to restrict the values of cells to be The data validation feature is found in the ‘Data’ tab as shown below.

Figure 1: Data Validation Menu Option In order to illustrate the different types of data validation options.

We’ll use the following data entry form: Figure 2: Sample Form The data validation types shown in this post are: Now users will be not allowed to type anything but whole numbers in B8.

Another possible application of validating entries with formulas is to avoid duplicate entries in a column.One of the great features that MS Excel has is the capability to restrict (validate) the input into certain cells.The name of this feature in MS Excel is Data Validation.Figure 13: Data Validation Rule (Text Length)User will be required to type text between 20 to 300 characters in B16.If user types less than 20 or more than 300 characters in B16 then an error dialog box will be displayed as shown in figure 14 below.A computed column expression can use data from other columns to calculate a value for the column to which it belongs.You can specify an expression for a computed column in in SQL Server 2017 by using SQL Server Management Studio or Transact-SQL.Figure 4: Default Error Dialog Box We can customize this window to display a more meaningful message following these steps: Figure 7: Data Validation Rule (Decimal Number)Now, if the user enters something different than a decimal number within the acceptance criteria in B10 then an error dialog box is displayed as shown in figure 8 below.This error message is created by following the same steps shown above in figure 5.The fixes for the following APARs were confirmed in this release after the fix list was initially published.A computed column is a virtual column that is not physically stored in the table, unless the column is marked PERSISTED.


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