Oracle，从子查询中插入多行，且该行多于一行 [英] Oracle, insert multirows from subquery with more than one row

问题描述

我正在尝试将表中的某些字段复制到其他字段，我想通过将insert与这样的子查询一起使用来完成操作:

Im trying to copy some field from a table to other, I want to do iy by using insert with a subquery like this:

insert into sed_reporte_generico 
(srg_usuario, 
srg_nombres,
srg_ape_paterno,
srg_ape_materno,
srg_objetivo,
srg_peso_ob,
srg_calf_ob)
values
(
(select us.su_st_usuario, us.su_st_nombres, us.su_st_ap_paterno, us.su_st_ap_materno,     ob.soc_st_descripcion, ob.soc_nr_peso,ob.soc_nr_calificacion 
from sed_objetivo ob, sed_usuarios us, sed_evaluacion ev 
where ob.se_evaluacion_pk = ev.se_evaluacion_pk and ev.su_colaborador_fk =     us.su_usuarios_pk)
);

但是我得到了这个错误:

but I got this error:

01427. 00000 -  "single-row subquery returns more than one row"

知道我该怎么做吗?

谢谢

推荐答案

认为您必须在两者之间进行选择

Think you got to choose between

insert into table (a, b, c) VALUES(1, 2, 3)

和

insert into table (a, b, c) 
(SELECT x, y, z from table2)

您只能将VALUES和SELECT混合使用(正如一个失常的马所指出的那样) 当您的选择查询仅返回一列和一行！

You can have VALUES and SELECT mixed only (as pointed by an anomyous horse) when your select query returns only one column and one row !

顺便说一句，使用JOIN ...联接表(使用WHERE子句联接表是一种坏习惯):

By the way, use JOIN... to Join your tables (use of the WHERE clauses to join tables is rather a bad habit) :

INSERT INTO sed_reporte_generico 
(srg_usuario, 
srg_nombres,
srg_ape_paterno,
srg_ape_materno,
srg_objetivo,
srg_peso_ob,
srg_calf_ob)

(select us.su_st_usuario, us.su_st_nombres, us.su_st_ap_paterno, us.su_st_ap_materno,     ob.soc_st_descripcion, ob.soc_nr_peso,ob.soc_nr_calificacion 
FROM sed_objetivo ob 
JOIN sed_evaluacion ev  ON ob.se_evaluacion_pk = ev.se_evaluacion_pk
JOIN sed_usuarios us on  ev.su_colaborador_fk =     us.su_usuarios_pk)
);

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