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SQL Pivot, multiple columns to rows
Part of the problem with retrieving the data is the fact that I don't have a ton of information/tools. I know the tables are big, but don't know the specifics. And the normal queries that I run finish in about 6-7 hours time. Of course these probably could be quicker, but we have not say in... -
SQL Pivot, multiple columns to rows
I am trying to create a table that has the following structure: SSN, ICD9 From a table with the following structure: SSN, ICD9_1, ICD9_2, ..., ICD9_8 The only way I can see accomplishing this now is by using a massive union statement: SELECT DISTINCT SSN, ICD9 FROM ( SELECT SSN, ICD9_1 AS...
