SQL:列计数与行计数不匹配

Question

以下查询:

INSERT INTO term_node( nid, vid, tid )
VALUES (
    (
     SELECT ctb.nid, ctb.vid, 35
     FROM content_type_bout AS ctb
     WHERE field_school_value_c = 'Lafayette'
    )
)

产生此错误:

#1136 - Column count doesn't match value count at row 1

term_node只有三列.我究竟做错了什么？

Answer 1

以下应该有效:

INSERT INTO term_node( nid, vid, tid )
 SELECT ctb.nid, ctb.vid, 35
 FROM content_type_bout AS ctb
 WHERE field_school_value_c = 'Lafayette'

您只在插入单行数据时使用VALUES子句.