Domanda di colloquio di OpenText
duplicate count from database
Risposta di colloquio
Anonimo
17 nov 2020
SELECT col1, col2, COUNT(*) FROM tbl_name GROUP BY col1, col2 HAVING COUNT(*) > 1
2
duplicate count from database
Anonimo
SELECT col1, col2, COUNT(*) FROM tbl_name GROUP BY col1, col2 HAVING COUNT(*) > 1