This SQL Server tutorial explains how to use the PIVOT clause in SQL Server (Transact-SQL) with syntax and examples. Description The SQL Server (Transact-SQL) PIVOT clause allows you to write a cross-tabulation.

A literal expression with a type that shares a least common type with the respective column_name. The number of expressions in each tuple must match the number of column_names in column_list. column_alias. An optional alias specifying the name of the generated column. If no alias is specified PIVOT generates an alias based on the expression s.
This command is useful when you want to cross-tabulate a set of data. This means using data in a list to create a table-like structure - each cell contains the result of some aggregate function (SUM, COUNT etc). We need to know the number of columns in advance (SQL always needs to know the number of columns in advance).
New to SQL. I have an unindexed table of about 20 million records, that has one row per task, I need one row per job, with each job row containing the task and task dates. I use a pivot to accomplish this which is working. I am having some huge tempdb growth which is problemeatic. I need help tuning this query.
2 Answers. You could just use UNION ALL to combine the two results, you would need to convert the roles from the top query from int to VARCHAR though: DECLARE @ID INT = 1; WITH Ans AS ( SELECT DISTINCT SessionID,ItemID_FK,Roles FROM tbl_Answers WHERE ID_FK = @ID ), PivotData AS ( SELECT items.ItemID_PK, items.ItemName, cntRoles = COUNT (ans Sorted by: 2. Since you are using SQL Server you can implement the PIVOT function. If you have a known number of values then you can hard code the query using the following: select device_name, App1, App2, App3, App4, App5 from ( select device_name, app_id, 'App'+ cast (row_number () over (partition by device_name order by device_name) as oDJa2I.
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    • how to use pivot in sql