Get the alternative even odd rows records from a table sql server

Описание: #sqlserver #even

Get the alternative even odd rows records from a table sql server

To retrieve alternative even and odd rows from a SQL Server table without using the ROW_NUMBER() function or similar methods, you can use the modulo operator (%) to filter rows based on their position. Here's a high-level description of the approach in 80 words:

To get alternate even and odd rows, use a self-join or a subquery to join the table with itself. In the join condition, compare the row numbers, which are derived from the count of rows with lower row numbers, to the total number of rows in the table. By checking if the row number modulo 2 equals 0 for even rows and 1 for odd rows, you can filter the desired records. This method helps select alternating rows without using ROW_NUMBER().