如何通过此表的结果进行求和/分组
我有一张小时表，看起来像是：
我想仅对本周的hours_spent结果求和，并按created_by人对结果进行分组。我有这个查询返回正确的数据，只显示本周的结果：
SELECT staff_id, first_name, last_name, date_entered, `hours_spent` as total_hours FROM hours LEFT JOIN staff ON hours.created_by = staff.staff_id where yearweek(`date_entered`) = yearweek(curdate());
但是当我将SUM（hours_spent）添加为total_hours并按staff_id分组时，如下例所示，我得到0结果。
SELECT staff_id, date_entered, first_name, last_name, SUM(`hours_spent`) as total_hours FROM hours LEFT JOIN staff ON hours.created_by = staff.staff_id group by staff_id having yearweek(`date_entered`) = yearweek(curdate());
我假设它不起作用，因为我的声明的一部分没有返回单独的日期行，所以它会中断。
我觉得我这样做很难。我应该尝试对第一个查询的结果运行第二个求和查询，而不是将它们全部合并为一个（我希望清洁度）。或者我应该使用子查询来过滤掉本周不是的日期，然后将总数分组，如果是这样，我该如何实现？
1 个答案:
答案 0 :(得分：0)
我得到了我期待的东西：
SELECT staff.first_name，staff.last_name，sum（date_entered）
从几个小时
LEFT JOIN员工ON hours.created_by = staff.staff_id
在哪里年周（C:\Users\Primary User\Desktop\500lines-master\crawler\code>python test.py
C:\Users\Primary User\AppData\Local\Programs\Python\Python36-32\lib\site-packages\aiohttp\web.py:54: ResourceWarning: loop argument is deprecated
warnings.warn("loop argument is deprecated", ResourceWarning)
E.E..EEEEEEEEEE..
======================================================================
ERROR: test_content_type (__main__.TestCrawler)
----------------------------------------------------------------------
Traceback (most recent call last):
File "test.py", line 314, in test_content_type
self.add_page(content_type='foo')
File "test.py", line 93, in add_page
self.add_handler(url, handler)
File "test.py", line 76, in add_handler
self.app.router.add_route('GET', url, handler)
File "C:\Users\Primary User\AppData\Local\Programs\Python\Python36-32\lib\site-packages\aiohttp\web_urldispatcher.py", line 823, in add_route
resource = self.add_resource(path, name=name)
File "C:\Users\Primary User\AppData\Local\Programs\Python\Python36-32\lib\site-packages\aiohttp\web_urldispatcher.py", line 787, in add_resource
self.register_resource(resource)
File "C:\Users\Primary User\AppData\Local\Programs\Python\Python36-32\lib\site-packages\aiohttp\web_urldispatcher.py", line 762, in register_resource
"Cannot register a resource into frozen router.")
RuntimeError: Cannot register a resource into frozen router.
======================================================================
ERROR: test_encoding (__main__.TestCrawler)
----------------------------------------------------------------------
Traceback (most recent call last):
File "test.py", line 309, in test_encoding
test_charset('', 'utf-8')
File "test.py", line 305, in test_charset
self.add_page(url, content_type=content_type)
File "test.py", line 93, in add_page
self.add_handler(url, handler)
File "test.py", line 76, in add_handler
self.app.router.add_route('GET', url, handler)
File "C:\Users\Primary User\AppData\Local\Programs\Python\Python36-32\lib\site-packages\aiohttp\web_urldispatcher.py", line 823, in add_route
resource = self.add_resource(path, name=name)
File "C:\Users\Primary User\AppData\Local\Programs\Python\Python36-32\lib\site-packages\aiohttp\web_urldispatcher.py", line 787, in add_resource
self.register_resource(resource)
File "C:\Users\Primary User\AppData\Local\Programs\Python\Python36-32\lib\site-packages\aiohttp\web_urldispatcher.py", line 762, in register_resource
"Cannot register a resource into frozen router.")
RuntimeError: Cannot register a resource into frozen router.
======================================================================
ERROR: test_link (__main__.TestCrawler)
----------------------------------------------------------------------
Traceback (most recent call last):
File "test.py", line 126, in test_link
self.add_page('/', ['/foo'])
File "test.py", line 93, in add_page
self.add_handler(url, handler)
File "test.py", line 76, in add_handler
self.app.router.add_route('GET', url, handler)
File "C:\Users\Primary User\AppData\Local\Programs\Python\Python36-32\lib\site-packages\aiohttp\web_urldispatcher.py", line 823, in add_route
resource = self.add_resource(path, name=name)
File "C:\Users\Primary User\AppData\Local\Programs\Python\Python36-32\lib\site-packages\aiohttp\web_urldispatcher.py", line 787, in add_resource
self.register_resource(resource)
File "C:\Users\Primary User\AppData\Local\Programs\Python\Python36-32\lib\site-packages\aiohttp\web_urldispatcher.py", line 762, in register_resource
"Cannot register a resource into frozen router.")
RuntimeError: Cannot register a resource into frozen router.
======================================================================
ERROR: test_link_cycle (__main__.TestCrawler)
----------------------------------------------------------------------
Traceback (most recent call last):
File "test.py", line 137, in test_link_cycle
url = self.add_page('/foo', ['/bar'])
File "test.py", line 93, in add_page
self.add_handler(url, handler)
File "test.py", line 76, in add_handler
self.app.router.add_route('GET', url, handler)
File "C:\Users\Primary User\AppData\Local\Programs\Python\Python36-32\lib\site-packages\aiohttp\web_urldispatcher.py", line 823, in add_route
resource = self.add_resource(path, name=name)
File "C:\Users\Primary User\AppData\Local\Programs\Python\Python36-32\lib\site-packages\aiohttp\web_urldispatcher.py", line 787, in add_resource
self.register_resource(resource)
File "C:\Users\Primary User\AppData\Local\Programs\Python\Python36-32\lib\site-packages\aiohttp\web_urldispatcher.py", line 762, in register_resource
"Cannot register a resource into frozen router.")
RuntimeError: Cannot register a resource into frozen router.
======================================================================
ERROR: test_max_tasks (__main__.TestCrawler)
----------------------------------------------------------------------
Traceback (most recent call last):
File "test.py", line 264, in test_max_tasks
self.add_handler(url, handler)
File "test.py", line 76, in add_handler
self.app.router.add_route('GET', url, handler)
File "C:\Users\Primary User\AppData\Local\Programs\Python\Python36-32\lib\site-packages\aiohttp\web_urldispatcher.py", line 823, in add_route
resource = self.add_resource(path, name=name)
File "C:\Users\Primary User\AppData\Local\Programs\Python\Python36-32\lib\site-packages\aiohttp\web_urldispatcher.py", line 787, in add_resource
self.register_resource(resource)
File "C:\Users\Primary User\AppData\Local\Programs\Python\Python36-32\lib\site-packages\aiohttp\web_urldispatcher.py", line 762, in register_resource
"Cannot register a resource into frozen router.")
RuntimeError: Cannot register a resource into frozen router.
======================================================================
ERROR: test_max_tries (__main__.TestCrawler)
----------------------------------------------------------------------
Traceback (most recent call last):
File "test.py", line 281, in test_max_tries
self.add_handler('/', handler)
File "test.py", line 76, in add_handler
self.app.router.add_route('GET', url, handler)
File "C:\Users\Primary User\AppData\Local\Programs\Python\Python36-32\lib\site-packages\aiohttp\web_urldispatcher.py", line 823, in add_route
resource = self.add_resource(path, name=name)
File "C:\Users\Primary User\AppData\Local\Programs\Python\Python36-32\lib\site-packages\aiohttp\web_urldispatcher.py", line 787, in add_resource
self.register_resource(resource)
File "C:\Users\Primary User\AppData\Local\Programs\Python\Python36-32\lib\site-packages\aiohttp\web_urldispatcher.py", line 762, in register_resource
"Cannot register a resource into frozen router.")
RuntimeError: Cannot register a resource into frozen router.
======================================================================
ERROR: test_non_html (__main__.TestCrawler)
----------------------------------------------------------------------
Traceback (most recent call last):
File "test.py", line 322, in test_non_html
self.add_page('/xml', body=body, content_type='application/xml')
File "test.py", line 93, in add_page
self.add_handler(url, handler)
File "test.py", line 76, in add_handler
self.app.router.add_route('GET', url, handler)
File "C:\Users\Primary User\AppData\Local\Programs\Python\Python36-32\lib\site-packages\aiohttp\web_urldispatcher.py", line 823, in add_route
resource = self.add_resource(path, name=name)
File "C:\Users\Primary User\AppData\Local\Programs\Python\Python36-32\lib\site-packages\aiohttp\web_urldispatcher.py", line 787, in add_resource
self.register_resource(resource)
File "C:\Users\Primary User\AppData\Local\Programs\Python\Python36-32\lib\site-packages\aiohttp\web_urldispatcher.py", line 762, in register_resource
"Cannot register a resource into frozen router.")
RuntimeError: Cannot register a resource into frozen router.
======================================================================
ERROR: test_non_http (__main__.TestCrawler)
----------------------------------------------------------------------
Traceback (most recent call last):
File "test.py", line 333, in test_non_http
self.add_page(body=body)
File "test.py", line 93, in add_page
self.add_handler(url, handler)
File "test.py", line 76, in add_handler
self.app.router.add_route('GET', url, handler)
File "C:\Users\Primary User\AppData\Local\Programs\Python\Python36-32\lib\site-packages\aiohttp\web_urldispatcher.py", line 823, in add_route
resource = self.add_resource(path, name=name)
File "C:\Users\Primary User\AppData\Local\Programs\Python\Python36-32\lib\site-packages\aiohttp\web_urldispatcher.py", line 787, in add_resource
self.register_resource(resource)
File "C:\Users\Primary User\AppData\Local\Programs\Python\Python36-32\lib\site-packages\aiohttp\web_urldispatcher.py", line 762, in register_resource
"Cannot register a resource into frozen router.")
RuntimeError: Cannot register a resource into frozen router.
======================================================================
ERROR: test_prohibited_host (__main__.TestCrawler)
----------------------------------------------------------------------
Traceback (most recent call last):
File "test.py", line 152, in test_prohibited_host
self.add_page('/', ['http://example.com'])
File "test.py", line 93, in add_page
self.add_handler(url, handler)
File "test.py", line 76, in add_handler
self.app.router.add_route('GET', url, handler)
File "C:\Users\Primary User\AppData\Local\Programs\Python\Python36-32\lib\site-packages\aiohttp\web_urldispatcher.py", line 823, in add_route
resource = self.add_resource(path, name=name)
File "C:\Users\Primary User\AppData\Local\Programs\Python\Python36-32\lib\site-packages\aiohttp\web_urldispatcher.py", line 787, in add_resource
self.register_resource(resource)
File "C:\Users\Primary User\AppData\Local\Programs\Python\Python36-32\lib\site-packages\aiohttp\web_urldispatcher.py", line 762, in register_resource
"Cannot register a resource into frozen router.")
RuntimeError: Cannot register a resource into frozen router.
======================================================================
ERROR: test_redirect (__main__.TestCrawler)
----------------------------------------------------------------------
Traceback (most recent call last):
File "test.py", line 196, in test_redirect
url = self.add_redirect('/', foo)
File "test.py", line 101, in add_redirect
self.add_handler(url, handler)
File "test.py", line 76, in add_handler
self.app.router.add_route('GET', url, handler)
File "C:\Users\Primary User\AppData\Local\Programs\Python\Python36-32\lib\site-packages\aiohttp\web_urldispatcher.py", line 823, in add_route
resource = self.add_resource(path, name=name)
File "C:\Users\Primary User\AppData\Local\Programs\Python\Python36-32\lib\site-packages\aiohttp\web_urldispatcher.py", line 787, in add_resource
self.register_resource(resource)
File "C:\Users\Primary User\AppData\Local\Programs\Python\Python36-32\lib\site-packages\aiohttp\web_urldispatcher.py", line 762, in register_resource
"Cannot register a resource into frozen router.")
RuntimeError: Cannot register a resource into frozen router.
======================================================================
ERROR: test_redirect_cycle (__main__.TestCrawler)
----------------------------------------------------------------------
Traceback (most recent call last):
File "test.py", line 214, in test_redirect_cycle
url = self.add_redirect('/bar', foo)
File "test.py", line 101, in add_redirect
self.add_handler(url, handler)
File "test.py", line 76, in add_handler
self.app.router.add_route('GET', url, handler)
File "C:\Users\Primary User\AppData\Local\Programs\Python\Python36-32\lib\site-packages\aiohttp\web_urldispatcher.py", line 823, in add_route
resource = self.add_resource(path, name=name)
File "C:\Users\Primary User\AppData\Local\Programs\Python\Python36-32\lib\site-packages\aiohttp\web_urldispatcher.py", line 787, in add_resource
self.register_resource(resource)
File "C:\Users\Primary User\AppData\Local\Programs\Python\Python36-32\lib\site-packages\aiohttp\web_urldispatcher.py", line 762, in register_resource
"Cannot register a resource into frozen router.")
RuntimeError: Cannot register a resource into frozen router.
======================================================================
ERROR: test_redirect_join (__main__.TestCrawler)
----------------------------------------------------------------------
Traceback (most recent call last):
File "test.py", line 230, in test_redirect_join
self.add_redirect('/foo', baz)
File "test.py", line 101, in add_redirect
self.add_handler(url, handler)
File "test.py", line 76, in add_handler
self.app.router.add_route('GET', url, handler)
File "C:\Users\Primary User\AppData\Local\Programs\Python\Python36-32\lib\site-packages\aiohttp\web_urldispatcher.py", line 823, in add_route
resource = self.add_resource(path, name=name)
File "C:\Users\Primary User\AppData\Local\Programs\Python\Python36-32\lib\site-packages\aiohttp\web_urldispatcher.py", line 787, in add_resource
self.register_resource(resource)
File "C:\Users\Primary User\AppData\Local\Programs\Python\Python36-32\lib\site-packages\aiohttp\web_urldispatcher.py", line 762, in register_resource
"Cannot register a resource into frozen router.")
RuntimeError: Cannot register a resource into frozen router.
----------------------------------------------------------------------
Ran 17 tests in 0.034s
FAILED (errors=12)
C:\Users\Primary User\Desktop\500lines-master\crawler\code>
，1）=（年周（curdate（），1）-1）
GROUP BY created_by
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