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SQLDaily
sqldaily.bsky.social
did:plc:blmnab373idbogizdn742doc
Convert rows to a comma-separated list of de-duplicated values in Oracle #SQL with
LISTAGG ( DISTINCT val, ', ' ) WITHIN GROUP ( ORDER BY ... )
LISTAGG was introduced in 11g Release 2
The DISTINCT clause was added in 19c
2025-09-11T11:01:55.908Z