Home > database > Er diagram 1, on the relationship between the multiple if specified at least 1 to several how to mar
Er diagram 1, on the relationship between the multiple if specified at least 1 to several how to mar
Time：09-22
The company's employees at least more than 5, for example, how to mark, there the condition of (0, n)? The great spirit guide, please. Er diagram is incorrect
the condition of (0, n)? The great spirit guide, please. Er diagram is incorrect 