InterRob wrote:
Dear List, I am trying to implement the following: [snip] All suggestions are very much appreciated, regards, Rob
It's not clear to me what you're asking, but I suspect the suggestion you need is the same as if you had asked how to best implement an Entity-Attribute-Value scheme: don't do it. Why it may be possible, performance is going to go into the toilet, constraints are going to be difficult to enforce, and maintenance will be difficult at best. Spending the effort upfront to define a schema will have drastic long-term payoffs. It can be tempting to believe an application can define the appropriate schema for itself at runtime if you just give it a big enough sandbox, but this rarely works out well.
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