SAVE THE TABLE DATA AT ONCE THROUGH ODATA FROM UI5?

Hi All ,

I have created an FM with read_flag and save_flag as input parameters,form UI5 i will pass read_flag for reading the data which is displayed in table form and after displaying if i make changes and click on save button the paramter save_flag should be passed to FM and all the data in table should be saved in the backend table at one go .Can you please suggest how to do it?