django.db.utils.InternalError: (1050, "Table 'tb_content' already exists") 在goods应用里面写了tb_content数据表的模型类(不该写在这里的),进行了数据迁移,还导入了数据。 在contents应用里也写了tb_content数据表的模型类(应该写在这里的), 解决办吧: 代码上,删除goods里面的。 python manage.py migrate...
File"D:\python_learn\meiduo_project\env\lib\site-packages\django\db\utils.py", line 94,in__exit__six.reraise(dj_exc_type, dj_exc_value, traceback) File"D:\python_learn\meiduo_project\env\lib\site-packages\django\utils\six.py", line 685,inreraiseraisevalue.with_traceback(tb) File"...
File"D:\python_learn\meiduo_project\env\lib\site-packages\django\db\utils.py", line 94,in__exit__six.reraise(dj_exc_type, dj_exc_value, traceback) File"D:\python_learn\meiduo_project\env\lib\site-packages\django\utils\six.py", line 685,inreraiseraisevalue.with_traceback(tb) File"...
Table 1. Hypotheses tested by the attitudes of students. 2.3. Reliability and Validity of Scales Cronbach’s alpha reliability analysis was used to measure the environmental reliability of the scales used in the study, which were perceptions of academic education, their environmental education attitud...
Table 1. Core attributes of 2deo and LABe. Therefore, it should be highlighted that, on the one hand, 2deo–Basque Language Audiovisual Lab is a space dedicated to promoting audiovisual production and that on the other, LABe–Digital Gastronomy Lab is dedicated to promoting digital gastronomy...
The differences between the classical distance-learning system and the modern system of distance-learning technologies are presented in Table 2. Some other megatrends that help achieve sustainability through digitalization are discussed below. Digital platforms appear to serve as the primary mechanism that...
Table 2. Confusion matrix for land use/land cover (LULC) classes from crowdsourced and Landsat TM5 imagery. Observed Class from Crowdsourced Mapping Class of interest Non-class of interest Total Predicted Class from Landsat TM5 Class of Interest Non-Class of Interest Total TP FP TP + FP FN ...
Table 1 below shows the distribution of these companies according to their origin countries (i.e., the countries where companies' headquarters are located) and Table A1 in the Appendix A shows the specific industry within the manufacturing sector of these companies, the latter based on the ...
Sustainability 2016, 8, 742 19 of 28 Table 1. Summary of noise reduction by using TAL surfaces. Reference Used Vuye et al. [96] Thompson et al. [100] Bendtsen and Raaberg [101] Bendtsen and Raaberg [101] Reference Pavement Pavement Maximum Aggregate Size (mm) of TAL Air Void (%) ...
These simulations were performed on HP 450G ProBook with a 1 TB hard drive and 8 GB RAM. 9.2. Simulation Parameters Table 7 shows the average values of different simulation parameters that were used in the proposed work. These values are taken from the Electric Vehicle Database [46]. ...