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Member Avatar for laokn
A difficult challenge-- How to calculate sum of earlier date records for each line?
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Can you help me with the following Mysql question? I get a table, say, three variables: ID, Date and Value, for example, ID Date Value 1 2001 2 2 2005 3 3 1986 7 4 1985 1 How can I add a variable, sum, to each line, with the condition …

Databases conditional date math mysql
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