In 2002, the National Kidney Foundation published treatment guidelines that identified five stages of Chronic Kidney Disease (CKD) based on declining GFR measurements. The guidelines recommend different actions based on the stage of kidney disease.
CSV (Comma Separated Value) was a file format devised to store tabular data. It uses commas to separate each entry in a row and the newline symbol to go to the next row. Excel is a more recent spreadsheet application from Microsoft and it saves the data with its own file format.
Comma-separated value (CSV) files are not supported by SQL Server bulk-import operations. However, in some cases, a CSV file can be used as the data file for a bulk import of data into SQL Server. Note that the field terminator of a CSV file does not have to be a comma.f that file name is already in use, the data that is being bulk copied to the data file overwrites the existing contents of the file. Bulk export from a table or view to a data file requires SELECT permission on the table or view that is being bulk copied. Microsoft SQL Server can use parallel scans to retrieve data.