Yes, it is possible to implement SQL Server's STRING_AGG() function in queries that involve GROUP BY ROLLUP(). However, it requires some additional handling to concatenate the string values correctly for each group.
Here is an example query that uses the STRING_AGG() function with GROUP BY ROLLUP():
SELECT
COALESCE(col1, 'Total') AS col1,
COALESCE(col2, 'Total') AS col2,
STRING_AGG(col3, ', ') AS col3_agg
FROM table1
GROUP BY ROLLUP(col1, col2)
In this query, the COALESCE() function is used to replace NULL values in the grouping columns with a default value of 'Total'. The STRING_AGG() function is then applied to the col3 column to concatenate the string values for each group. The GROUP BY ROLLUP() clause is used to produce subtotals and a grand total for the result set.
Note that the order of the columns in the GROUP BY ROLLUP() clause determines the order of the subtotals and the grand total.
Please start posting anonymously - your entry will be published after you log in or create a new account. This space is reserved only for answers. If you would like to engage in a discussion, please instead post a comment under the question or an answer that you would like to discuss
Asked: 2023-05-29 07:03:31 +0000
Seen: 7 times
Last updated: May 29 '23
What is the method for programmatic access to a time series?
What is the procedure for using pg_restore on Windows with Docker?
Can SqlDependency be used in a programming language other than .NET, such as node js?
How can multiple queries be merged into a single stored procedure in MySQL?
How can I deal with Expression.Error related to a column in Power Query?
How can you implement pagination in Oracle for the LISTAGG() function?
What is the process for implementing a FutureBuilder on an OnTap function in Flutter?