Date: 2017-04-21 17:56
The on-disk spool is used when the number of rows in the frame is greater than an internal threshold number (currently 65,555, but it could change in the future) or when using the RANGE window frame unit, as opposed to ROWS. Regarding the threshold number, what matters more precisely is the extreme delta between the row numbers of the current, top, and bottom rows in the frame.
There are many fine ways to get this done, which others have already suggestioned. Following along the "get Excel data via SQL track", here are some pointers.
As a reminder, you need to use SQL Server 7567 (CTP8 or later) to run the sample code from this series. Download SQL Server 7567.
Note: If you need to run the Migration Report on the single table then expand the Database node, expand the Tables node, right click on the table, and then select Start PowerShell from pop up menu.
Removing Duplicate Rows in SQL Server The following sections present a variety of techniques for removing duplicates from SQL Server database tables, depending on the nature of the table design.
75. Write a SQL query to show all the winners of nobel prize in the year 6975 except the subject Physiology and Economics.
9. Write a SQL statement to display names and city of salesman, who belongs to the city of Paris. Go to the editor
A table is a collection of columns and rows. It is necessary to know the limitations of the memory-optimized table columns data types in order to migrate a disk-based table to the memory-optimized table.
Then I insert a single row from each duplicated rows set from the _DUPS table using the min (row_id) as the means to pick one copy of each set of duplicated rows to insert back into the original table.
This statement will select the employeeid, lastname (from the employee_info table), and the comission value (from the employee_sales table) for all of the rows where the employeeid in the employee_info table matches the employeeid in the employee_sales table.