Here we added unique constraints on a set of columns. We can also add multiple unique constraints, meaning unique constraints on multiple sets of columns. We’ll do just that in the next section. 5.3. Multiple Unique Constraints on a Single Entity A table can have multiple unique constraints....
In this case, it has a single field called my_account, an Account struct that represents an instance of the MyAccount type defined below. The #[account(mut)] attribute on the my_account field indicates that it is a mutable account, meaning the function will modify its state....
where the intended meaning of fails1(P,Q1) is that P 6` Q 1 , where ...Henning Christiansen and Davide Martinenghi. Symbolic constraints for meta-logic programming. Applied Artificial Intelligence, 14(4):345-367, 2000.H. Christiansen and D. Martinenghi. Symbolic Constraints for Meta-Logic...
is adapted to the gelfand–tsetlin basis, meaning that each \(x_\lambda \) is expressed in this basis. each symmetry from definition 6.1 results in some simplification of the matrix variable x since each block \(x_\lambda \) assumes a special form. we discuss this in more detail in...
Furthermore, the setup times are sequence dependent, meaning that the setup time \(t^{setup}_{o_1,o_2}\) can differ significantly from the setup times \(t^{setup}_{o_3,o_2}\) and \(t^{setup}_{o_2,o_1}\) for \(o_1, o_2, o_3 \in O_m\). Likewise, the processing...
TheOrderIdandProductIdcolumns uniquely identify each row in theOrderProducttable. To give it a physical meaning, each product can be present in many orders; hence, theProductIdcolumn can store duplicate values. Also, each order can have many products; theOrderIdcolumn can also store duplicate ...
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The optimization returns alpha = -0.122 as the optimal value, meaning that the largest decay rate is 0.122. You can use dec2mat to convert popt to the value of P that achieves optimal result. Get Pval = dec2mat(lmisys,popt,P) Pval = 2×2 5.5789 -8.3503 -8.3503 18.6443 Input...
That's identical to the previous five, except for the VFL part. This time we're specifyingV:, meaning that these constraints are vertical. And we have multiple views inside the VFL, so lots of constraints will be generated. The new thing in the VFL this time is the-symbol, which means...
Anyway, you can see that we've used the POSSREP in the example to specify a type constraint (see the WHERE clause): Quantities must be such that they can be represented by, precisely, the integers 1, 2, ..., 5000 -- meaning (loosely) that legal quantities are just those five thousa...