by AD Tejpal
This sample db demonstrates identification of data blocks as well as missing portions in a sequential series. Three types of source data are covered:
(a) Number series.
(b) Alpha-numeric series.
(c) Date series.
Subform on left shows all records, duly highlighting the start of each new block of sequential series. Subform at right depicts group-wise gist (for each PersonID) of sequential blocks as well as missing portions, duly indicating the start and end values for each set. Missing blocks are highlighted in light grey.
Version: Access 2000 file format.
You can find the sample here: http://www.rogersaccesslibrary.com/forum/query-grpsequentialsandmissing_topic556.html
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