SQL Server处理表中的每一行-游标或While循环

Question

I am dumping all the file names in directory into a temp table using xp_dirtree.

CREATE TABLE #TempTable (Subdirectory VARCHAR(512), Depth INT, xFile INT);

INSERT INTO #TempTable (Subdirectory, Depth, xFile)
   EXEC xp_dirtree 'D:\log\Day_20140301',0,1

SELECT Subdirectory AS Filename 
FROM #TempTable 
WHERE subdirectory LIKE '%.log';

SELECT * FROM #TempTable

I use each file names in this table for Bulk insert.

Would a cursor be good or a while loop?

Currently using while loop to loop through each record.

Heard many negative things about cursor. Open to all suggestion for the same.

Answer 1

In this case, "No matter" is probably the right answer. While or cursor over 1k records will cost you approximately nothing comparing to the IO latency and CPU used by bulk insert. I suppose, optimizing loaded files structure and corresponding tables should take the lead.