To highlight identical literals when selecting a string in a script in SQL Server Management Studio (SSMS), you can follow these steps:
- Open SSMS and go to Tools > Options.
- In the Options dialog box, expand Text Editor > Transact-SQL > General.
- Check the box next to "Enable highlighting of identical text" and click OK.
- To test this feature, open a query window and type a string literal (enclosed in single quotes) multiple times in the same query. Select one instance of the string by double-clicking on it.
- All other instances of the string will be highlighted with a yellow background, making it easy to identify and update multiple instances of the same value.
Note: This feature works for string literals only and not for other types of literals or variables.