Question

任何帮助表示赞赏，现在一周，我被困 -

如果可以，非常感谢。

我添加了问题的图像，但它已经消失了

    WITH SITESmin as (
SELECT public.acc.Location_Easting_OSGR,    public.acc.Location_Northing_OSGR
FROM   acc Sites ,
ORDER BY  ( acc.Location_Easting_OSGR - Sites.SITE_ETG ) * ( acc.Location_Easting_OSGR - Sites.SITE_ETG ) + (acc.Location_Northing_OSGR - "public"."Sites"."SITE_ETG" ) * (     acc.Location_Northing_OSGR - "public"."Sites"."SITE_NTG" )
LIMIT 1
)
UPDATE ACC
SET acc.Location_Easting_OSGR = SITESmin.acc.Location_Easting_OSGR,
acc.Location_Northing_OSGR = SITESmin.acc.Location_Northing_OSGR
FROM SITESmin;

这是错误：

Error : ERROR:  syntax error at or near "ORDER"
LINE 4:     ORDER BY  ( acc.Location_Easting_OSGR - Sites.SITE_ETG )...

^克拉出现在第4行：冒号

之后

Answer 1

第二次看我注意到这个查询有几个问题。如果你使用别名然后坚持这个别名，你有很多错误地定义了字段，或者你发布的查询有一些缺失的部分，并且在你的例子中不存在。和更新部分看起来像缺少条件.... 例如

SELECT public.acc.Location_Easting_OSGR,    public.acc.Location_Northing_OSGR

然而你定义了别名＆＃34;网站＆＃34;，顺便说一下，＃34;＆＃34; as＆＃34;语法，应该是

FROM   acc as Sites 


WITH SITESmin as (
SELECT Sites.Location_Easting_OSGR,    Sites.Location_Northing_OSGR
FROM   acc as Sites --,  <--- this coma was is causing that error, it does not belong there or some code is missing
ORDER BY  (Sites.Location_Easting_OSGR - Sites.SITE_ETG ) * ( Sites.Location_Easting_OSGR - Sites.SITE_ETG ) + (Sites.Location_Northing_OSGR -  Sites.SITE_ETG ) * (     Sites.Location_Northing_OSGR - Sites.SITE_NTG )
LIMIT 1
)
UPDATE ACC
SET acc.Location_Easting_OSGR = SITESmin.Location_Easting_OSGR,
acc.Location_Northing_OSGR = SITESmin.Location_Northing_OSGR
FROM SITESmin

---  missing where condition?
 ;

Postgresql查询将无法正常工作

1 个答案: