我需要对行进行编号,以便具有相同 ID 的行号相同。例如:
甲骨文数据库。有任何想法吗?
使用DENSE_RANK
解析函数:
SELECT DENSE_RANK() OVER (ORDER BY id) AS row_number,
id
FROM your_table
其中,对于样本数据:
CREATE TABLE your_table ( id ) AS
SELECT 86325 FROM DUAL UNION ALL
SELECT 86325 FROM DUAL UNION ALL
SELECT 86326 FROM DUAL UNION ALL
SELECT 86326 FROM DUAL UNION ALL
SELECT 86352 FROM DUAL UNION ALL
SELECT 86353 FROM DUAL UNION ALL
SELECT 86354 FROM DUAL UNION ALL
SELECT 86354 FROM DUAL;
输出:
ROW_NUMBER ID 1 86325 1 86325 2 86326 2 86326 3 86352 4 86353 5 86354 5 86354
db<>在这里摆弄