I have a database that has two tables. On table is a date table that has all of the possible dates for a year within it. Within this table is a field ("concatenate") that contains a varchar data type specification that contains the date in the following format 201201010510. This represents the years, months, days, hours and minutes. This table is joined to a data table that contains the same varchar field named "concatenate". How do I query the data table to obtain the missing dates as well as the first prior matched date and the following matched date. Listed below is the format of the data.
The query would report