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.. (לתיקייה המכילה) | |
in Q2,when we are required to write SQL query , is at allowed to write several queries? e.g. create view then select from that view, or it has to be one long query? | |
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It is highly preferred to write as one command using use sub-queries instead of creating views. still you may write several quires without loosing points. |
Is it possible that we draw 2 lines between an entity set and a relationship set and also put arrows on those two lines? | |
| Yes , it is possible. |
in Q1 , written "every manager is in charge of one group" does that mean at most one group or exactly one? | |
| Exactly one. |