操作数应包含1列（S）约INSERT INTO和选择

Question

"insert into NodeProfileSections (profile_no, tpl_section_no) 
select (np.profile_no, tps.tpl_section_no) 
from NodeProfile np, TemplateProfileSection tps, TemplateProfile tp 
where np.hostname = '%s' AND np.role = '%s' AND tp.tpl_profile_no = tps.tpl_profile_no 
AND tp.tpl_name = '%s' AND tp.role = '%s' AND tps.tpl_section_name = '%s';" 
%(hostname, role, template_name, role, section_name) 

error_message = 'Operand should contain 1 column(s)'

如何解决这个问题呢？

Answer 1

从内部选择中删除括号。

q = """INSERT INTO 
      NodeProfileSections (profile_no,tpl_section_no) 
     SELECT 
      np.profile_no 
      ,tps.tpl_section_no 
     FROM 
      NodeProfile np 
      ,TemplateProfileSection tps 
      ,TemplateProfile tp 
     WHERE 
      np.hostname = '%s' 
      AND np.role = '%s' 
      AND tp.tpl_profile_no = tps.tpl_profile_no 
      AND tpl.tpl_name = '%s' 
      AND tp.role = '%s' 
      AND tps.tpl_section_name = '%s' 
"""