Sum rows from different conditions in Mysql -


मूल तालिका बड़ी है इसलिए मैं इसे सरल कर दूंगा:

mytable: 

   
 एक प्रश्न के समान  
  का चयन करें जब हालत = 1 फिर 'ठीक' या स्थिति के रूप में 'बीएडी' अंत, मामला (मामला जब आकार = 10 से 1 साल पहले 0) छोटा, मामला (मामला तब होगा जब मामला = 20 तब 1 या 0 पूर्वाह्न) मध्यम, एसयूएम (मामले में जब   
 तो हमारे पास यह परिणाम है  
  स्थिति छोटे मध्यम बड़े ठीक 1 2 1 बीएडी 2 1 0   
 प्राप्त करने के लिए उचित कोड क्या है:  
  स्थिति छोटे मध्यम बड़े ठीक 1 2 1 बीएडी 2 1 0 कुल 3 3 1    
 
 
 आप  को रोलअप के साथ  जोड़ सकते हैं < कोड> ग्रुप BY  इस तरह की स्थिति:  
  स्थिति का चयन करें जब हालत = 1 'स्थिति' के रूप में 'ठीक' या 'खराब' अंत, मामला (मामला जब = 10 फिर 1 0 अंत ) के रूप में छोटा, एसएम (मामला जब आकार = 20 तब 1 ELSE 0 ईडीडी) के रूप में मध्यम, एसएम (मामला तब होता है जब = 30 THEN 1 ELSE 0 END) बड़ा, रोबले के साथ स्थित स्थिति से मेराटेबल समूह से   
 यह एक परिणाम सेट की तरह उत्पन्न करेगा:  
  स्थिति छोटे मध्यम बड़ा ठीक 1 2 1 खराब 2 1 0 [NULL] 3 3 1   
 आपको व्यवहार को समझना होगा कि स्थिति कॉलम में कोई भी  कुल  मान नहीं होगा। इसके बजाय स्थिति कॉलम में एक नल मूल्य होगा जो दर्शाता है कि यह वह जगह है जहां रोलअप किया जाता है।  
 अधिक जानकारी के लिए आप यहां दस्तावेज पढ़ सकते हैं:

Comments

Post a Comment

Popular posts from this blog

c - Performance of System() -

After the function in C, for the system (), it affects the hardware counters, so how do you order that The example displayed for the example you are trying to view lets the IM use the display API (PAPI) and the program is a precompiled matrix multiplication application. PAPI_start_counters (); System ("./matmul"); PAPI_read_counters (); // Print the values ​​PAPI_stop_counters (); I'm clearly missing a bit, but I'm trying to figure out what it is possible to say, counter receiving a program im running Is through use. With my tests I will get wild numbers like below, they are clearly wrong, just want to find out why total bicycle =========== 140733358872510 instructions complete =========== 4203968 Floating Point Instructions =========== Floating Point Operations =========== 4,196,867 Weight ======= ==== 140733358872804 store ======= ==== 4204037 branches taken =========== 15774436 System () Normally it is a very slow function, on Linux, it is ...
Read more

python - how we can use ajax() in views.py in django? -

I have a little code here. Could you please tell me what this code really does? please. Here in the AJAX call: $ .ajax ({url: "{% url} upload_document '%}", type: "POST", data : {Csrfmiddletoken: document.getElementsByName ('csrfmiddletoken') [0] Price, Title: document.getElementById ('title'). Value, // document: document: document.getElementById ('document'),}, datatype: "Jason", success: function (feedback) {if (feedback == "true") {// success} other {// attachment errors}}}); How AJAX works in the Django and how we can see the AJAX request. Here is the idea of ​​my thoughts def upload_document (requested): Print request. POTT print request FILES if request.is_ajax (): If request.method == 'POST': form = UploadForm (request.POST, request.FILES, user = request.user) if form.is_valid (): Form.save () return HTTPPCS (SimpleJason Dumps ('True'), Mime Type = 'App / Jason') Other:...
Read more

python - Sequence Pattern recognition with Pybrain -

Image
I am constantly trying to use recurrent neural networks to classify a series of data. To be more specific, I have a sequence of sensor reading (which is continuous over time), I have to learn an algorithm which can detect the state related to this pattern, given the readings change. Example: Time step_1: 1.4 Time step_2: 1 Time step_3: 0.8 State = New Sequence: Time Phase 1: 0.4 Time Phase 2: 0.3 Time Phase 3: 0.1 State = Sitting I actually have 12 censors, I'm just showing a sequence of numbers for convenience. (Numbers are not real, I'm just trying to fulfill this idea)! I am trying to make my network with PyBrain RNN, however, I can not get a Data Set Container that can detect it, like information I tried to use sequential data But after some testing I came to know that this number is the next element in the sequence of numbers. Here's how I prepare my dataset: self.alldata = SequentialDataSet (ds.num_features, 1) # Now add samples to the dat...
Read more