SQL Server :: Comparing Rows In A Table?
Mar 11, 2011
I have a large database of user profile data. I need to be able to compare 1 row against all of the other rows, for all columns to find the best match.There are around 30 columns of data for each row. I need to be able to find the 5 best matching rows.
I.E.
Row 1 matches on 2 column's
Row 2 matches on 12 column's
Row 3 matches on 7 column's
Row 4 matches on 4 column's
Row 5 matches on 9 column's
Row 6 matches on 23 column's
Row 7 matches on 29 column's
In the end it will show me the data for rows 7, 6, 2, 5, 3 Now to make it even harder, Some of the columns are bit, some are varchar.Some of them may be a direct match, some will need to search if the column for row2 contains the text of row 1.
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