The relationship between two entities is 'm : n', then change enitites to tables in data storage design. How many tables should be created in this case?
【单选题】Directions: After reading the following passage, you will find a question or unfinished statement. For each question or statement there are 4 choices marked A, B, C and D. You should make the correct ...
【单选题】Directions: After reading the following passage, you will find a question or unfinished statement. For each question or statement there are 4 choices marked A, B, C and D. You should make the correct ...
【单选题】Directions: After reading the following passage, you will find a question or unfinished statement. For each question or statement there are 4 choices marked A, B, C and D. You should make the correct ...