我有這樣的選擇查詢; select id, email from operators where op_code = 1如何連接oracle中同一列的查詢結果？
查詢結果如下;
ID EMAIL
-- -----
1 [email protected]
2 [email protected]
3 [email protected]
但我需要的電子郵件這樣的格式，[email protected],[email protected],[email protected]
我如何在Oracle中實現這一目標？
請嘗試以下查詢，在ORACLE 11G工作：
select
listagg(email, ',')
within group (order by id) as list
from operators
where op_code=1
OR
SELECT
(RTRIM(XMLAGG(xmlelement(X, EMAIL||',')order by id).extract('//text()'),',')) list
FROM operators
WHERE op_code=1
發出此錯誤：'ORA-00923：FROM關鍵字找不到預期的地方' –
哪個是您的數據庫版本？ – TechDo
'Oracle Database 10g企業版版本10.2.0.5.0 - 64bi' –
http://stackoverflow.com/questions/1614373/how-to-使用-coalesce-in-oracle-to-combine-data-from-two-rows –