Dear all,
I'm trying to do a selective deletion from an 'Archive' table based on
dates.
Here is the setup:
Table 'Archive' has a date field ( [DateArchive] ).
Another table ('Cutoffs') defines the Low and High Cut-off dates
(fields: [DateCutoff_Low], [DateCutoff_Hi] respectively).
The logic is:
We want to delete all the records from the Archive table where:
[DateArchive] >= [DateCutoff_Low] OR [DateArchive] <=
[DateCutoff_Hi]
The closest I've got (using the Access GUI) generates this SQL:
DELETE
Archive.*, Archive.DateArc hive
FROM
Archive, Cutoffs
WHERE
(((Archive.Date Archive)>=[Cutoffs]![DateCutOff_Low]
Or
(Archive.DateAr chive)<=[Cutoffs]![Date_CutOff_Hi]));
This generates a 'Could not delete from specified tables' error.
Any insights for this?
Many thanks,
Alex
4  3161 
On Feb 23, 8:02 am, "alex.hatzisava s" <alex.hatzisa.. .@gmail.com>
wrote:
Dear all,
I'm trying to do a selective deletion from an 'Archive' table based on
dates.
Here is the setup:
Table 'Archive' has a date field ( [DateArchive] ).
Another table ('Cutoffs') defines the Low and High Cut-off dates
(fields: [DateCutoff_Low], [DateCutoff_Hi] respectively).
The logic is:
We want to delete all the records from the Archive table where:
[DateArchive] >= [DateCutoff_Low] OR [DateArchive] <=
[DateCutoff_Hi]
The closest I've got (using the Access GUI) generates this SQL:
DELETE
Archive.*, Archive.DateArc hive
FROM
Archive, Cutoffs
WHERE
(((Archive.Date Archive)>=[Cutoffs]![DateCutOff_Low]
Or
(Archive.DateAr chive)<=[Cutoffs]![Date_CutOff_Hi]));
This generates a 'Could not delete from specified tables' error.
Any insights for this?
Many thanks,
Alex
Check your syntax for field name consistency.
On Feb 24, 6:55 pm, lgeastw...@gmai l.com wrote:
On Feb 23, 8:02 am, "alex.hatzisava s" <alex.hatzisa.. .@gmail.com>
wrote:
Dear all,
I'm trying to do a selective deletion from an 'Archive' table based on
dates.
Here is the setup:
Table 'Archive' has a date field ( [DateArchive] ).
Another table ('Cutoffs') defines the Low and High Cut-off dates
(fields: [DateCutoff_Low], [DateCutoff_Hi] respectively).
The logic is:
We want to delete all the records from the Archive table where:
[DateArchive] >= [DateCutoff_Low] OR [DateArchive] <=
[DateCutoff_Hi]
The closest I've got (using the Access GUI) generates this SQL:
DELETE
Archive.*, Archive.DateArc hive
FROM
Archive, Cutoffs
WHERE
(((Archive.Date Archive)>=[Cutoffs]![DateCutOff_Low]
Or
(Archive.DateAr chive)<=[Cutoffs]![Date_CutOff_Hi]));
This generates a 'Could not delete from specified tables' error.
Any insights for this?
Many thanks,
Alex
Check your syntax for field name consistency.
The above is just an example to demonstrate the logic, it does not
include the real field names.
Anyhow i believe this has nothing to do with field syntax, but is
related to how Jet SQL handles selective deletions.
On Feb 25, 10:58 am, "alex.hatzisava s" <alex.hatzisa.. .@gmail.com>
wrote:
On Feb 24, 6:55 pm, lgeastw...@gmai l.com wrote:
On Feb 23, 8:02 am, "alex.hatzisava s" <alex.hatzisa.. .@gmail.com>
wrote:
Dear all,
I'm trying to do a selective deletion from an 'Archive' table based on
dates.
Here is the setup:
Table 'Archive' has a date field ( [DateArchive] ).
Another table ('Cutoffs') defines the Low and High Cut-off dates
(fields: [DateCutoff_Low], [DateCutoff_Hi] respectively).
The logic is:
We want to delete all the records from the Archive table where:
[DateArchive] >= [DateCutoff_Low] OR [DateArchive] <=
[DateCutoff_Hi]
The closest I've got (using the Access GUI) generates this SQL:
DELETE
Archive.*, Archive.DateArc hive
FROM
Archive, Cutoffs
WHERE
(((Archive.Date Archive)>=[Cutoffs]![DateCutOff_Low]
Or
(Archive.DateAr chive)<=[Cutoffs]![Date_CutOff_Hi]));
This generates a 'Could not delete from specified tables' error.
Any insights for this?
Many thanks,
Alex
Check your syntax for field name consistency.
The above is just an example to demonstrate the logic, it does not
include the real field names.
Anyhow i believe this has nothing to do with field syntax, but is
related to how Jet SQL handles selective deletions.- Hide quoted text -
- Show quoted text -
Ok the trick is to use an SQL Select statement in the Criteria of the
Delete query, for example as follows:
>=(SELECT tbl_000b_Date_C utoffs.Date_Cut Off_Low FROM tbl_000b_Date_C utoffs)
Or
<=(SELECT tbl_000b_Date_C utoffs.Date_Cut Off_Hi FROM
tbl_000b_Date_C utoffs)
On Feb 25, 10:58 am, "alex.hatzisava s" <alex.hatzisa.. .@gmail.com>
wrote:
On Feb 24, 6:55 pm, lgeastw...@gmai l.com wrote:
On Feb 23, 8:02 am, "alex.hatzisava s" <alex.hatzisa.. .@gmail.com>
wrote:
Dear all,
I'm trying to do a selective deletion from an 'Archive' table based on
dates.
Here is the setup:
Table 'Archive' has a date field ( [DateArchive] ).
Another table ('Cutoffs') defines the Low and High Cut-off dates
(fields: [DateCutoff_Low], [DateCutoff_Hi] respectively).
The logic is:
We want to delete all the records from the Archive table where:
[DateArchive] >= [DateCutoff_Low] OR [DateArchive] <=
[DateCutoff_Hi]
The closest I've got (using the Access GUI) generates this SQL:
DELETE
Archive.*, Archive.DateArc hive
FROM
Archive, Cutoffs
WHERE
(((Archive.Date Archive)>=[Cutoffs]![DateCutOff_Low]
Or
(Archive.DateAr chive)<=[Cutoffs]![Date_CutOff_Hi]));
This generates a 'Could not delete from specified tables' error.
Any insights for this?
Many thanks,
Alex
Check your syntax for field name consistency.
The above is just an example to demonstrate the logic, it does not
include the real field names.
Anyhow i believe this has nothing to do with field syntax, but is
related to how Jet SQL handles selective deletions.- Hide quoted text -
- Show quoted text -
Hi folks
Try
Between DateCutoff_Low And DateCutoff_Hi
in the criteria! Usually works for me! This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics | |
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