]+ '] ' + ' as Y ' [email protected] SET @sql2 =rtrim (@sql2) + ', [' [Email protected]+ '] ' NEXT from Cur_expyear to @sn, @expyear END --2.4. Close the cursor and release the cursor CLOSE Cur_expyear Deallocate cur_expyear --3. Achieving goals SET @sql =rtrim (@sql) + ' from (SELECT dptno,year (indate) as Expyear from Tb_employee with (NOLOCK)) T PIVOT (' [emai
Tags: take out stage table number and so on and end the original nbsp column careerThis article is guided by: in T-SQL statements, the pivot operator is used to rotate or pivot data between columns and rows, and the pivot command can implement a column change of a data
Original: Row to column: SQL SERVER pivot and usage explanationIn database operations, there are times when we encounter the need to implement "row-to-column", for example, a table for a weekly income statement for a store:VARCHAR (Ten) DECIMAL)Let's insert some simulation data first:INSERT intoWeek_incomeSELECT 'Monday', +UNION AllSELECT 'Tuesday', -UNION All
SQL Server row and column transformation hidden groupPivot has a hidden group group, except for pivot column and value column, and other columns as groupingsExample:IF not EXISTS (SELECT * from sys.tables where name = ' Pivot_test ')CREATE TABLE Pivot_test(ID1 int,Id2 int,Pivot_column varchar (50),Value char (50))INSERT into pivot_test values (A, ' A ', ' A_v '),
aggregate function sum indicates how you want to handle the value of the converted column, whether it is the sum (sum), average (avg), Min,max, and so on. For example, if the Week_income table has two data and its week is "Monday", one of the income is 1000 and the other income is 500, then the sum is used here, and the value of the column "Monday" After row to column is of course 1500. After for [week] in ([Monday],[Tuesday] ...) In for [week] means
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
Pivot row and column conversions in SQLThis article is guided by: in T-SQL statements, the pivot operator is used to rotate or pivot data between columns and rows, and the pivot command can implement a column change of a data table
]+ ', [' [emailprotected]+ '],[' [emailprotected]+ '] ' + ' from [' [email protected]+ ']) p PIVOT (SUM ([' [emailprotected]+ ']) for [' [emailprotected]+ '] in (' + @sql_col + ')) as Pvt Where Pvt.hx_fzone is not null for ORDER by ' [Emailprotected]--print (@sql_str) EXEC (@sql_str) drop table #t_estimateamo Untreasondrop Table #t_ Estimateamountreasontotalend-
Pivot rotates a table-valued expression by converting the unique value in a column of an expression to multiple columns in the output, and performs an aggregation if necessary on any remaining column values that are required in the final output. Unpivot performs the opposite operation with Pivot, converting the column of the
Tags: is sele into font an int BSP inline insertPivot data is actually a row state to an example stateAdd a test sheet firstIF object_id('dbo. Orders','U') is not NULL DROP TABLEdbo. Orders;GOCREATE TABLEdbo. Orders (OrderIDINT not NULL, OrderDate DATE not NULL, EmpidINT not NULL, CustIDVARCHAR(5) not NULL, QtyINT not NULL, CONSTRAINTPk_ordersPRIMARY KEY(OrderID));INSERT intodbo. Orders (OrderID, OrderDate, Empid, CustID, qty)VALUES (30001,'20070802',3,'A',Ten), (100
When it comes to statistics, it is often a problem to change rows and columns. Case when mode is too cumbersome, and scalability is not strong, you can use Pivot,unpivot to quickly achieve row to column, column change, and Scalability strongFirst, row to column1. Test data PreparationCREATE TABLE [Studentscores]( [UserName] NVARCHAR( -),--Student Name [Subject] NVARCHAR( -),--Subjects
Tags: Need convenient many year-over. com IDT Time Order salesIn general, when you use a form to view data, a pivot table is involved from a different dimension. For example, analyze sales data from product and time dimensions.When the need to analyze from the time dimension, but also want to have a year, the chain data, then the time dimension of the design column will greatly facilitate the writing of SQL
Simple tutorial on SQL statements in linux --- simple tutorial on table connection and SQL
Now we will introduce the concept of Join. To understand the connection, we need to use a lot of commands we have introduced before. Let's assume that we have the following two tables,
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 fromSt
Label:A data table in the field of years, months, days, amounts, payment methods and other fields, and now want to write a SQL statement, each day of the payment method amount (The payment method has multiple) row in the same line, Finally, add a column subtotal to the amount of all the current payment methods. Such as: The result of the original SQL query is thi
', '
insert INTO [studentscores] select ' yards ', ' maths ', ' math ',
To [Studentscores] select ' yards ', ' English ', '
INSERT into [studentscores] select ' yards ', ' creature ', 78 2. Row to column SQL SELECT * FROM [studentscores]/* Data source */As
P
PIVOT
(
SUM (Value of column after score/* row to column */)
for p.subject/* columns that require row-to-column * /In ([Language],[math],
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