Advanced Data Retrieval: Sorting, Aggregation, and Grouping in SQL
Sorting Query Results
The ORDER BY clause is utilized to arrange the output of a query. You can specify sorting based on one or multiple columns. By default, the sort order is ascending (ASC), but you can explicitly request descending order (DESC). When handling columns containing NULL values, the standard behavior dictates that in ascending so ...
Posted on Tue, 14 Jul 2026 17:33:46 +0000 by mahenderp
Mastering XSLT 2.0 Grouping with xsl:for-each-group
XSLT 2.0 introduced the xsl:for-each-group instruction, which enables powerful grouping operations on node sequences. This capability was a significant enhancement over XSLT 1.0, eliminating the need for the Muenchian method and complex key-based workarounds. The instruction processes a sequence of items by dividing them into groups based on sp ...
Posted on Thu, 28 May 2026 23:01:09 +0000 by dmIllithid