NO.1: where rownum = 1
NO.2: where rownum = 1 sql
NO.3: where rownum = 1 sql server
NO.4: where rownum 10
NO.5: where rownum 100
NO.6: where rownum 1 postgres
NO.7: where row_number = 1
NO.8: where row_number 1 sql
NO.9: postgresql row_number=1
NO.10: oracle update where rownum 1