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Asked: 2026-05-11T09:07:32+00:00

What is the syntax to specify a Left Join using pre ANSI-92 syntax (i.e.

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What is the syntax to specify a Left Join using pre ANSI-92 syntax (i.e. *=) when part of the Where clause has an ‘equal to some constant’ condition ? (in this case 100 is the constant)

Example:

  SELECT t1.ID, t.*  FROM (select * from SybaseTable where ID=1) t, SqlServerTable t1 WHERE t1.ID *= 100 and t1.SeqNo *= t.SeqNo

In this case I want all records from derived table ‘t’, even if ‘t1’ has no match. I want t1.ID to return NULL in the Select clause when a matching row on SeqNo does not exist in ‘t’.

The error I am receiving is ‘Both terms of an outer join must contain columns’.

I am executing this query in SQL Server 2005 for now, but it will eventually be used against a Sybase implementation, which requires the old join syntax.

thanks in advance

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1 Answer

  1. I think this will do it, but you’ll have to test to be certain:

    SELECT t1.ID, t.*  FROM (select * from SybaseTable where ID=1) t, SqlServerTable t1 WHERE t.SeqNo *= t1.SeqNo AND 100 *= t1.ID

    Notice that I reversed the order on the SeqNo part, to better indicated which is the left side of the join.

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