pivot and unpivot in sql

: Table_source Pivot (aggregate function (Value_column) pivot_column for (columnlist)) A little explanation: Table_source: Is the table we want to convert. Pivot_column: Is the column name for row to column. Value_column: Is the value of the column after the conversion. Columnlist is the column to be generated. This is also the case with pivot, which can be used to write the same result: Select Studentname,

Label:Original: SQL Pivot, Unpivot, and partition by usageDemo Script IF not exists(SELECT 1 fromSys.sysobjectswhereName= 'Student' andType= 'U') BEGIN CREATE TableStudent (IDint Identity Primary Key, ClassIDint default 0,--class IDCoursenamenvarchar( -) ,--CoursesNamenvarchar( -)

Tags: style blog http color ar using SP for strongOriginal: SQL row to Column PIVOT column career UNPIVOTOne:Existing table one (T_TABLE1), want to convert to table two (t_table2) format.Table I: year company revenue 2013 Company 1 12 2013 Company 2 22 2013

[Studentscores] SELECT 'Yard Farm','English', theINSERT into [Studentscores] SELECT 'Yard Farm','Biological', +2. Row to column SQLSELECT * from [Studentscores] /*Data Source*/ asPpivot (SUM(Score/*value of column after row to column*/) forP.subject/*columns that require row to column*/ inch([language],[Mathematics],[English],[Biological]/*the value of the column*/)) asTExecution Result:Second, the list of career change1. Test data PreparationCREATE TABLEProgrectdetail (ProgrectnameNVARCHAR(

PRODUCT. Name as Product_Name, product. Color as Product_color, product. ReorderPoint, Product_inventory. Quantity as product_quantity from production.product product left JOIN Production . ProductInventory product_inventory on PRODUCT. ProductID = Product_inventory. ProductID) SELECT * from Product_data PIVOT (SUM (product_quantity) for Product_color in ('; withcolorlist as(SELECT DISTINCTProduct.color asColor_name fromproduction.productWHEREProduct

Tags: font order weight sel math ble tab sum ROM1. Pivot usage (row to column) Select * from as a pivot (sum for in ([ language ],[ Mathematics ],[ Foreign Language ], [ Literature ],[ Comprehensive Management ] as B Data: ID name score 1 language 2 Mathematics 95 3 Foreign languages 4 5 Management of the comprehensive Results: ID Chinese Mathematics Foreign Langua

,'English','Little Li',98 EndGOView CodeOne row to the other pivot and UnpivotMSDN ReferenceMethod 1:SELECTName,sum( CaseCoursename when 'Mathematics' ThenScoreELSE 0 END) as 'Mathematics',sum( CaseCoursename when 'language' ThenScoreELSE 0 END) as 'language',sum( CaseCoursename when 'English' ThenScoreELSE 0 END) as 'English' fromStudentGroup byNameMethod 2:SELECTT.name,sum(T. Mathematics) asMathematics,sum(T. Language) aslanguages,sum(T. Engl

Tags: note span print log spin BER TTY aggregate GroupThe pivot clause is a new feature of Oracle database 11g that enables you to rotate rows into columns in the query output and use aggregate functions on the data. The UNPIVOT clause is also added, and he can rotate columns into rows in the query output;IntroducedThe following table data is now available: (not shown completely ...) ） Now we want to observ

the original table, The inverse perspective does not lose any information. (because there is no aggregate operation)You need to borrow the result set from the perspective transformation. The code is as follows:With CC as(SelectStuname,isnull (Mathematics,0) asMathematics, IsNull (Chinese,0) asChinese, isnull (English,0) asEnglish from(SelectStuname,isnull (Chinese,0) asChinese, isnull (mathematics,0) asMathematics, IsNull (English,0) asEnglish fromStudent P