フリー問題

問題文

Two kinds of constraint are set aside upon the far tables before a load. What does the documentation say the operator may do with them once it has run its course?

選択肢

1. A copying of them over to the schema holding the tables of the definition history is what the documentation says the operator may do, and the two kinds of constraint set aside upon the far tables are what it bears upon once the load has run its course
2. A fresh bringing of them back into full force at the end of it is what the documentation says the operator may do, and the two kinds of constraint set aside upon the far tables are what it bears upon once the load has run its course
3. A folding of them into the mapping statements of the delivery side is what the documentation says the operator may do, and the two kinds of constraint set aside upon the far tables are what it bears upon once the load has run its course
4. A trimming of them down to the primary key columns is what the documentation says the operator may do, and the two kinds of constraint set aside upon the far tables are what it bears upon once the load has run its course