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Asked: 2026-05-10T15:37:37+00:00

I’m trying to write a query that will pull back the two most recent

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I’m trying to write a query that will pull back the two most recent rows from the Bill table where the Estimated flag is true. The catch is that these need to be consecutive bills.

To put it shortly, I need to enter a row in another table if a Bill has been estimated for the last two bill cycles.

I’d like to do this without a cursor, if possible, since I am working with a sizable amount of data and this has to run fairly often.

Edit

There is an AUTOINCREMENT(1,1) column on the table. Without giving away too much of the table structure, the table is essentially of the structure:

 CREATE TABLE Bills (   BillId INT AUTOINCREMENT(1,1,) PRIMARY KEY,   Estimated BIT NOT NULL,   InvoiceDate DATETIME NOT NULL )

So you might have a set of results like:

 BillId               AccountId            Estimated InvoiceDate -------------------- -------------------- --------- ----------------------- 1111196              1234567              1         2008-09-03 00:00:00.000 1111195              1234567              0         2008-08-06 00:00:00.000 1111194              1234567              0         2008-07-03 00:00:00.000 1111193              1234567              0         2008-06-04 00:00:00.000 1111192              1234567              1         2008-05-05 00:00:00.000 1111191              1234567              0         2008-04-04 00:00:00.000 1111190              1234567              1         2008-03-05 00:00:00.000 1111189              1234567              0         2008-02-05 00:00:00.000 1111188              1234567              1         2008-01-07 00:00:00.000 1111187              1234567              1         2007-12-04 00:00:00.000 1111186              1234567              0         2007-11-01 00:00:00.000 1111185              1234567              0         2007-10-01 00:00:00.000 1111184              1234567              1         2007-08-30 00:00:00.000 1111183              1234567              0         2007-08-01 00:00:00.000 1111182              1234567              1         2007-07-02 00:00:00.000 1111181              1234567              0         2007-06-01 00:00:00.000 1111180              1234567              1         2007-05-02 00:00:00.000 1111179              1234567              0         2007-03-30 00:00:00.000 1111178              1234567              1         2007-03-02 00:00:00.000 1111177              1234567              0         2007-02-01 00:00:00.000 1111176              1234567              1         2007-01-03 00:00:00.000 1111175              1234567              0         2006-11-29 00:00:00.000

In this case, only records 1111188 and 1111187 would be consecutive.

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1 Answer

  1. Assuming the rows have sequential IDs, something like this may be what you’re looking for:

    select top 1 *  from  Bills b1 inner join Bills b2 on b1.id = b2.id - 1 where b1.IsEstimate = 1 and b2.IsEstimate = 1 order by b1.BillDate desc
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