Does the 'default where clause' query select the ROWID by default ?
Hi ,
The query in default where property of a data block is as follows:
global.prim_lang = :global.user_lang
and upper(group_name) like upper('%' || :B_apply_inclusions.TI_group_desc || '%')
UNION ALL
select g.rowid, g.group_no
from table1 t,
table 2 g
where :global.prim_lang != :global.user_lang
and upper(g.group_name) = t.key(+)
and :global.user_lang = t.lang(+)
and upper(nvl(t.translated_value, g.group_name)) like upper('%' || :B_apply_inclusions.TI_group_desc || '%')
The g.rowid was added in the UNIONALL portion of the query because the first part of the query was bringing rowid as well.
We are in 10.1.2.3.0 forms version.
However for a user in forms verion 10.1.2.0.2, the query is giving an error " Unable to perform query " - due to mismatch in the number of columns selected in the query union.
because for this user, rowid is not selected as part of default where clause query( 1st part of the query before the unionalll).
If g.rowid is removed from the 2nd part of the query , it errors out in 10.1.2.3.0 forms version.
Could you kindly clarify when this rowid will also be selected by the default where clause of a block and why this issue is occuring?Is this issue related to forms version or any other property of the block? Is it is version based, is there a patch available to deal with the same?
Thanks in Advance.
You normally change the default_where block property just when you want to chnage the filter conditions for what is selected from a given block data source.
Querries with union or minus will confuse forms as to the rowid and will no longer be albe to perform the default insert/update/delete, not knowing the rowid and the table to perform the dml on.
A from clause query will be the best way to change dynamically the tables you select from and also the where. But, by using that, if you wish to insert/update/delete, you will have to use on-insert/update/delete triggers where the processing will have to rely on some primary key columns and not on rowid.
Or, instead of a from-clause, you may use a view, but that will definitely be less flexible than a from clause query.
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