Question

我正在尝试在Oracle SQL中运行以下查询，但它一直在修复“单行子查询返回多行”的错误。对DESCR254的查询获得了10个结果。

INSERT INTO PS_Z_TREND_NOW_TBL 
  VALUES(
 (SELECT DESCR254 
  FROM ( 
 SELECT DESCR254
 , COUNT(*) AS COUNT 
  FROM PS_IS_STATS_URLS 
  GROUP BY DESCR254 
  ORDER BY COUNT(*) DESC, DESCR254 ) 
 WHERE ROWNUM <= 10), ' ')

PS_Z_TREND_NOW_TBL有两列。我试图在第一列中插入子查询的结果，只是添加＆＃39; ＆＃39;在第二栏。有谁知道我做错了什么？

Answer 1

试试这个：

INSERT INTO PS_Z_TREND_NOW_TBL 
SELECT DESCR254,' '
  FROM ( 
 SELECT DESCR254
      , COUNT(*) AS COUNT 
   FROM PS_IS_STATS_URLS 
  GROUP BY DESCR254 
  ORDER BY COUNT(*) DESC, DESCR254
  ) 
 WHERE ROWNUM <= 10))

Oracle SQL Insert单行子查询返回多行

1 个答案: