how can I filter in Django to get a data row one times if the same value in on column?
如果列中的值相同,我如何在Django中过滤以获取一次数据行?
columns:
a | b
x | y
a | y
y | s
Want one data row set with y (b) and one data row set with s (b).
想要使用y(b)设置一个数据行,使用s(b)设置一个数据行。
If not clear what I mean I edit with SQL script... EDIT: SELECT DISTINCT b FROM table;
如果不清楚我的意思我用SQL脚本编辑...编辑:SELECT DISTINCT b FROM table;
1 个解决方案
#1
1
Sorry to be blind... http://docs.djangoproject.com/en/dev/ref/models/querysets/
抱歉是失明的... http://docs.djangoproject.com/en/dev/ref/models/querysets/
Have a nice day.
祝你今天愉快。
#1
1
Sorry to be blind... http://docs.djangoproject.com/en/dev/ref/models/querysets/
抱歉是失明的... http://docs.djangoproject.com/en/dev/ref/models/querysets/
Have a nice day.
祝你今天愉快。