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"...
They produced Table 2, which defined the source locations and depth, magnitudes (Mb and Ms) and the azimuth of the T wave generating earthquakes together with the velocities and the wave path(s) in the Tasman Sea area of the S-W Pacific Ocean. No consistent relationship with known tsunami...
Table 1. Literature review results according to the stated requirements of DTs for the future power system (✓, ✗ and ❍ indicate that requirements were “met”, “not met” and “partially met”, respectively). The main outcome of the review is that a generalized hierarchical structure...
2 Department of Sustainable Design Engineering, Faculty of Industrial Design Engineering, Delft University of Technology, 2628 CE Delft, The Netherlands * Correspondence: joren.vanloon@uantwerp.be (J.V.L.); els.dubois@uantwerp.be (E.D.B.) Abstract: The current COVID-19 pandemic has resulted...
Satisfaction of Entrepreneurs with the Business Environment of Rural Areas The entrepreneurs of the rural areas of the Serres RU, as shown in Table 3; Table 4, expressed high satisfaction with the road access (mean = 4.7, GC(general characterization) = quite a lot to very) that exists in ...
Table 1. Matching accuracy. The reason the scenarios have different accuracy is twofold. The first reason is the type of entities and their density. The urban scenario is the most challenging one due to the presence of many pedestrians which are harder to predict than vehicles and are often...
Table 1. Industrial chain of graphene technology. Industrial Chain Upstream industry Mid-stream industry Downstream industry Technological Field Graphite; CVD graphene preparation method; Carbonaceous gas, e.g., methane Graphene film; Graphene powder; Graphene-based compound New energy industry: Lithium-...
sustainability Article Conceptualizing the Sharing Economy through Presenting a Comprehensive Framework Meisam Ranjbari * ID , Gustavo Morales-Alonso and Ruth Carrasco-Gallego ID Department of Organization Engineering, Business Administration and Statistics, Escuela Técnica Superior de Ingenieros Industriales, ...
3. Results and Discussions The projected amount and NPVs of forest ecosystem services such as timber and mushroom for each strategy at the end of the planning horizon can be seen in Table 3 and Figure 2. Obviously, the O3 and O6 strategies produced the highest total NPV of timber and ...