I'm trying to port an application from SQL Server to MySQL (5.6.4) and running into performance issues. MySQL happens to be running on OS X Server, but this seems more like a UNIX question. SELECT ...
I need to get SUMs from two different related tables, and I'm stumped as to how (and haven't managed to successfully slog through the documentation). SELECT si_invoices.index_id, si_invoices.date, ...
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