Using Teradata SQL, how can I merge rows by ID to combine names into a comma-separated list? I’ve tried PARTITION but need an alternative method.
hey sam, have u tried the GROUP_CONCAT function? its pretty neat for this kinda thing. u can use it like GROUP_CONCAT(name, ‘,’) GROUP BY id. might be worth a shot if the other suggestions didnt work out. lmk if u need more help!
ooh, that’s an interesting challenge! have u considered using the LISTAGG function? it’s super handy for combining rows into a single string. what kinda data are you working with? maybe we could brainstorm some creative solutions together!
For this task, I’d recommend using the STRING_AGG function in Teradata SQL. It’s specifically designed for concatenating strings from multiple rows into a single string, which aligns perfectly with your requirement. The syntax is straightforward: STRING_AGG(column_name, ‘,’) WITHIN GROUP (ORDER BY column_name). This approach is efficient and doesn’t require complex subqueries or temporary tables. Remember to include a GROUP BY clause for your ID column to ensure proper aggregation. If you’re working with an older Teradata version that doesn’t support STRING_AGG, you could alternatively use XML Path as a workaround, though it’s a bit more complex to implement.