SQL pivot/transpose/row-column non-proprietary

Maybe this question has been asked already (it should be quite simple). I've Googled loads of phrases (PIVOT, ROWS to COLUMNS, TRANSPOSE &c.) and all I get is TSQL this, TSQL that and or Oracle this, Oracle that, proprietary function this, proprietary function that well, you get the picture.

I have a simple table structure - if it was any simpler, it'd be a list :-) - i.e. it's two columns.

stock_date       sku ----------       --- 2016-06-01         0 2016-06-02       123 2016-06-03       123 2016-06-04       123 2016-06-06       123 2016-06-07       123 2016-06-03       245 <... &c...> 

There may be many thousands of sku's but the date range will be at most a month or so, but can vary, so the code needs to cater for that.

So, I want to make the stock_date field a column.

sku     1   2   3   4   5   6   7 ---     -   -   -   -   -   -   -  123     0   Y   Y   Y   0   Y   Y 245     0   0   Y.... &c. 

Ideally, the code would be dynamic and would work with any server (even MySQL).

But if it has to use common table expressions and/or window functions, that's OK but not proprietary crosstab or pivot functions.


Category: sql Time: 2016-07-29 Views: 0
Tags: pivot sql

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