mysql - SQL loop with data aggregation -

-

इस सवाल का पहले से ही एक उत्तर है: < / p>

  • 8 जवाब

    मैं MySQL 5.5 का उपयोग कर रहा हूँ .38 और निम्न तालिका मिली (यह सिर्फ एक स्निपेट है, वास्तविक में ~ 500 उत्पाद हैं): 

      + ------ + ------- + - -------- + ------- + -------- + | आईडी | तिथि | उत्पाद | प्रकार | बिक्री | + ------ + ------- + ---------- + ------- + -------- + | 4513 | 14958 | XXXXXXX | 1 | 3 | | 4514 | 14958 | XXXXXXX | 2 | 5 | | 4519 | 14958 | YYYYYYY | 1 | 10 | | 4531 | 14958 | YYYYYYY | 3 | 150 | | 4534 | 14 9 559 | ZZZZZZZ | 1 | 5 | | 4536 | 14 9 559 | ZZZZZZZ | 2 | 5 | | + ------ + ------- + ---------- + ------- + -------- +  < / प्री> 
     जिससे मुझे उत्पाद द्वारा दैनिक बिक्री की मात्रा उत्पन्न करने की आवश्यकता है:  
      + ------- + ---------- + - -------- + ---------- + | तिथि | XXXXXXX | YYYYYYY | ZZZZZZZ | + ------- + ---------- + ---------- + ---------- + | 14958 | 8 | 110 | 0 | + ------- + ---------- + ---------- + ---------- + | 14 9 559 | 0 | 0 | 10 | | + ------ + ---------- + ---------- + ---------- +   
     परिणाम तालिका को ऊपर की तरह दिखना है - स्तंभों और पंक्ति के दिनों में उत्पादों के साथ।  
     बस कुछ बिंदुओं की तलाश करते हुए, कार्य समाधान नहीं। धन्यवाद, पावेल।   
     
     
     गतिशील एकत्रीकरण के लिए,  
      SET @sql = NULL; चुनें GROUP_CONCAT (अलग कंकाट ('SUM (मामले जब उत्पाद = एक' 'उत्पाद, एक' 'तब एक विक्रय होगा, एक उत्पाद)), मेरे @table से @ sql में; SET @sql = CONCAT ('SELECT date,', @sql, 'my_table ग्रुप बाय डेट'); एसएसएमएएम से एसटीएमटी तैयार करें; EXTUTE STMT; डेलॉलिकेट तैयार करें STMT;   
     सशर्त  केस  का उपयोग करके  समूह  के साथ (स्थिर के लिए)  
      SELECT s.date, एसएम (मामला जब एस। प्रोडक्ट = 'एक्स XXXXXXX' तो एस एसएसएलएसई ELSE 0 END) एएस 'XXXXXXX' के रूप में, एसएम (मामला जब एस। प्रोडक्ट = 'वाई वाई य्यय्याय' तो एसएसएसएलएसई ELSE 0 एडीडी) एएस 'वाई वाई य्याय्याय', एसएम ( मामले में जब s.product = 'ZZZZZZ' तो एस एसएसएलएसई ELSE 0 END) के रूप में 'ZZZZZZZ' से my_table एस ग्रुप द्वारा s.date;

Comments

Post a Comment

Popular posts from this blog

php - PDO bindParam() fatal error -

-
I am trying to learn PDO, now I have written this small code, but it gives me a serious error: < P> Fatal error: Call a member function at a non-object dot () ... $ con = new mysqli ("127.0.0.1", "root", "", "csvdangercheck"); $ Query = $ con- & gt; ("Id,` var1`, `var2`) values ​​(" id,: var1,: var2) ";); $ query- & gt; bypass pattern (': id', $ id); $ query- & gt; BindParam (': var1', $ VAL1); $ Query- & gt; bindParam (': var2', $ val2); $ Query-> Executed (); I Trying to use print_r ($ con-> errorInfo ()) but Fatal error: Undefined method mysqli :: errorInfo ( ) ... can someone tell me what am I missing? Flaffeh said, you have PDO Missing Mysqy, try it: $ con = new PDO ('mysql: host = 127.0.0.1; dbname = csvdangercheck', 'root', '');
Read more

logging - How can I log both the Request.InputStream and Response.OutputStream traffic in my ASP.NET MVC3 Application for specific Actions? -

-
For a specific set of tasks, I need to log in to the incoming request inputstream as well as outgoing response. is. I am using an ActionFilterAttribute for this and overriding the OnActionExecuted and OnResultExecuted methods. So I'm starting with this idea ... Public category ActionLoggerAttribute: ActionFilterArrbit {Public Override Zero On-Offed Execution (ActionActioned Contact Filter Filter) {base.OnActionAxecuted (FilterContext); HttpRequestBase request = filterContext.HttpContext.Request; // TODO: Log the request. InputStream} Public Override Zero OnResultExecuted (ResultExecutedContext FilterContext) {base.OnResultExecuted (filterContext); HTTPRPSPointBase Response = FilterContacts Hpptex response; // TODO: Log on Response.OutputStream}} Ideally I'll hook it up with enterprise library logging because I'm already using it for error logging. Am I reaching the input and output stream at the right time? Can I easily use the Enterprise Library to log i
Read more

java - Why my included JSP file won't get processed correctly? -

-
I am trying to create Java web framework (and learning), and on the basis of 'Code Generator In the process of making the material view of the database in the process of development, I stumbled into a difficulty, which I do not know how to solve it. First of all, I want the following index.jsp : & lt; Body & gt; Use all pages to be created. & Lt;% @ include file = "header.jsp"% & gt; & Lt; Hours / & gt; & Lt;% @ included file = "body.jsp"%> & Lt; Hours / & gt; & Lt;% @ include file = "footer.jsp"% & gt; & Lt; / Body & gt; And, in body.jsp , I should have it like this: & lt; Jsp: include page = "$ {Application_modul}"%> Where application_modul is an attribute defined in its controller: request.setAttribute ("application_modul", "USER_ACCOUNT \\ ' View_user_account.jsp "); This file can be found properly, but the processed JSP does
Read more