在Oracle中實(shí)現(xiàn)查詢第一條數(shù)據(jù)可以使用以下方法:
SELECT * FROM table_name WHERE ROWNUM = 1;
SELECT * FROM (
SELECT *, ROW_NUMBER() OVER (ORDER BY column_name) AS rn
FROM table_name
) WHERE rn = 1;
SELECT * FROM table_name FETCH FIRST 1 ROW ONLY;