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26 wrz 2012 · Here's stored procedure, which will generate the table based on data from one table and column and data from other table and column. The function 'sum(if(col = value, 1,0)) as value ' is used. You can choose from different functions like MAX(if()) etc.
17 cze 2024 · Pivoting a table in MySQL involves transforming rows into columns, which can be particularly useful for data analysis and reporting. While MySQL does not have a native PIVOT function like some other database systems, you can achieve pivoting using conditional aggregation with the CASE statement.
17 lut 2017 · GROUP BY and using MAX or SUM is the most used standard pivot way. SELECT results.sims_id , results.subject , MAX(CASE WHEN results.progress_check = "C1" THEN results.result END) "C1" , MAX(CASE WHEN results.progress_check = "C2" THEN results.result END) "C2" , MAX(CASE WHEN results.progress_check = "C3" THEN results.result END) "C3" FROM ...
26 sty 2024 · One powerful data summarization tool is a pivot table, which allows you to transform rows into columns, aggregating data in the process. This can be particularly useful for reporting purposes.
13 maj 2015 · If you really want to pivot your data, that's how you would do it: SELECT p.ID, p.Name, max(case when controlId = 1 then value end) AS controlId1 /* age */, max(case when controlId = 2 then value end) AS controlId2 /* allergy */ FROM patients p JOIN controlvalues cv ON cv.PatientId = p.ID GROUP BY p.ID ;
1 sie 2018 · dynamic pivot table using mysql, mysql rows to columns, mysql transpose. All the above links use some expression or the other to generate the columns. My original resulting rows are result of simple select on multiple joined tables, and has no calculation or expression scope. Kindly suggest some pointer or hint on how to achieve this.
22 kwi 2022 · SET @pivot_sql = NULL; SELECT GROUP_CONCAT(DISTINCT CONCAT (' SUM(CASE WHEN collector = "', ` collector `, '" THEN quantity ELSE 0 end) AS "', ` collector `, ' " ')) INTO @pivot_sql FROM bin_quantity; SET @pivot_sql = CONCAT (' SELECT bin, ', @pivot_sql, ' FROM bin_quantity GROUP BY bin '); PREPARE stmt FROM @pivot_sql; EXECUTE stmt; DEALLOCATE ...
