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Question about UPDATE query syntax

Question about UPDATE query syntax

2004-03-22       - By Zabach, Elke

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Reply:     1     2     3     4  

Andris Spruds wrote:
>
> Hello MaxDB list,
>
> I have problems understanding the correct syntax of a
> particular UPDATE
> statement. The query, which seems a pretty standard query for
> me, does not
> work:
>
> 'update ar_comments c set c.author = (select u.username from
> users u where
> u.id = c.author_id)'.
>

As ansered several times:
DO NOT USE a tablename in the SET-clause of an UPDATE-statement,
use just the columnname.
It does not matter if an alias or view-/tablename is written there, something
in front of the columnname will always cause a syntax-error.

In the reference manual it is described that only the columnname is allowed
there.

Elke
SAP Labs Berlin

> It complains about '-5016 Missing delimiter:='. The query,
> however, executes
> just fine if 'c.author' is replaced with just 'author'. Is
> this a bug or
> more likely, it's just my wrong understanding of SQL?
>
> Best regards,
> Andris Spruds
>
>
>
>
>
>
>
>
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