Null or not null, that is the question. ;)
SELECT [Regi No],[DD_ReceiptNo],[WO Date]
FROM [Master Data]
WHERE [DD_ReceiptNo] IS NULL
SELECT [Regi No],[DD_ReceiptNo],[WO Date]
FROM [Master Data]
WHERE [DD_ReceiptNo] IS NOT NULL
If varchar:
SELECT [Regi No],[DD_ReceiptNo],[WO Date]
FROM [Master...