I need a SQL query to detect and delete duplicate records, that is records where firstname and lastname are identical (if the case is different, would still be duplicate). Detection and deletion could be in separate steps.
Microsoft Access has a limit of 255 columns in a single table; SQL Server allows tables with over 255 columns, but reading that data is not necessarily simple. The final solution for this task involved creating a custom text parser and then reading…
Using examples as well as descriptions, and references to Books Online, show the documentation available for date manipulation functions and by using a select few of these functions, show how date based data can be manipulated with these functions.