使用连接创建视图

CREATE VIEW tcs.meter_data_eb2 AS 
select ar.created_date AS created_date, 
p.id AS parameter_id, 
p.parameter_name AS parameter_name, 
ar.parameter_value AS parameter_value, 
m.meter_primary_id AS meter_id, 
m.meter_name AS meter_name 
m.meter_code As meter_code 
from tcs.parameter_values_archieve ar 
inner join tcs.parameter_master p on p.id = ar.parameter_id 
inner join tcs.meter_primary_master m on m.meter_primary_id = ar.meter_id 
inner join tcs.meter_master mm on mm.meter_primary_id = m.meter_primary_id;

此查询有什么问题？使用连接创建视图

它给错误：

You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'm.meter_code As meter_code from tcs.parameter_values_archieve ar inner join tc' at line 8

来源

2013-01-22 user1896796

的，什么是错误消息 –

它的错误给你？ –

@jw错误消息....“您的SQL语法错误;检查与您的MySQL服务器版本相对应的手册，以便在'm.meter_code'附近使用正确的语法作为来自tcs.parameter_values_archieve ar的内部连接tc的meter_code '在第8行“ – user1896796

你只是缺乏m.meter_name和m.meter_code

, m.meter_name AS meter_name, m.meter_code AS meter_code

完全视图查询之间的逗号，

CREATE VIEW tcs.meter_data_eb2 
AS 
SELECT ar.created_date AS created_date , 
     p.id AS parameter_id , 
     p.parameter_name AS parameter_name , 
     ar.parameter_value AS parameter_value , 
     m.meter_primary_id AS meter_id , 
     m.meter_name AS meter_name, 
     m.meter_code AS meter_code 
FROM tcs.parameter_values_archieve ar 
     INNER JOIN tcs.parameter_master p 
      ON p.id = ar.parameter_id 
     INNER JOIN tcs.meter_primary_master m 
      ON m.meter_primary_id = ar.meter_id 
     INNER JOIN tcs.meter_master mm 
      ON mm.meter_primary_id = m.meter_primary_id;

来源

2013-01-22 07:03:11

使用连接创建视图

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