I've got a batch etl process in which I typically wrap DML with selects
in order to capture the number of rows affected. For example:
SELECT 'rows updated', COUNT(*)
FROM NEW TABLE
( UPDATE stage_asset
SET ip_int = ip_to_bigint(ip _string)
WHERE ip_int IS NULL )
How can I do this for a merge? For example:
MERGE INTO asset_component comp
USING stage_asset stag
ON comp.asset_id = stag.core_asset _id
AND comp.asset_comp onent_type = 'os'
WHEN MATCHED THEN
UPDATE SET
comp.os_name = stag.core_os_na me ,
comp.os_id = stag.core_os_id
,
comp.asset_comp onent_name = stag.core_os_na me
WHEN NOT MATCHED THEN
INSERT (asset_id,
asset_component _type,
asset_component _name,
os_name,
os_id )
VALUES (stag.core_asse t_id,
'os',
stag.core_os_na me,
stag.core_os_id )
Thanks in advance!
Ken 4 7058
kenfar wrote:
I've got a batch etl process in which I typically wrap DML with selects
in order to capture the number of rows affected. For example:
SELECT 'rows updated', COUNT(*)
FROM NEW TABLE
( UPDATE stage_asset
SET ip_int = ip_to_bigint(ip _string)
WHERE ip_int IS NULL )
How can I do this for a merge? For example:
MERGE INTO asset_component comp
USING stage_asset stag
ON comp.asset_id = stag.core_asset _id
AND comp.asset_comp onent_type = 'os'
WHEN MATCHED THEN
UPDATE SET
comp.os_name = stag.core_os_na me ,
comp.os_id = stag.core_os_id
,
comp.asset_comp onent_name = stag.core_os_na me
WHEN NOT MATCHED THEN
INSERT (asset_id,
asset_component _type,
asset_component _name,
os_name,
os_id )
VALUES (stag.core_asse t_id,
'os',
stag.core_os_na me,
stag.core_os_id )
Unfortunately no can do.
FWIW, SELECT FROM MERGE is on my personal wish-list too.
Cheers
Serge
--
Serge Rielau
DB2 Solutions Development
IBM Toronto Lab
IOD Conference http://www.ibm.com/software/data/ond...ness/conf2006/
Serge Rielau wrote:
kenfar wrote:
>I've got a batch etl process in which I typically wrap DML with selects in order to capture the number of rows affected. For example: SELECT 'rows updated', COUNT(*) FROM NEW TABLE ( UPDATE stage_asset SET ip_int = ip_to_bigint(ip _string) WHERE ip_int IS NULL )
How can I do this for a merge? For example:
MERGE INTO asset_component comp USING stage_asset stag ON comp.asset_id = stag.core_asset _id AND comp.asset_comp onent_type = 'os' WHEN MATCHED THEN UPDATE SET comp.os_name = stag.core_os_na me ,
comp.os_id = stag.core_os_id , comp.asset_comp onent_name = stag.core_os_na me WHEN NOT MATCHED THEN INSERT (asset_id, asset_component _type, asset_component _name, os_name, os_id ) VALUES (stag.core_asse t_id, 'os', stag.core_os_na me, stag.core_os_id )
Unfortunately no can do.
FWIW, SELECT FROM MERGE is on my personal wish-list too.
BTW, you are aware that you can retrieve the rows affected from the
SQLCA.ERRD[3] or in SQL PL: GET DIAGNOSTICS rcnt = ROW_COUNT
And that, of course, works also with MERGE
Cheers
Serge
--
Serge Rielau
DB2 Solutions Development
IBM Toronto Lab
IOD Conference http://www.ibm.com/software/data/ond...ness/conf2006/
Serge Rielau wrote:
BTW, you are aware that you can retrieve the rows affected from the
SQLCA.ERRD[3] or in SQL PL: GET DIAGNOSTICS rcnt = ROW_COUNT
And that, of course, works also with MERGE
Thanks Serge. I'm piloting this process within a bash shell, and so
calling it like this:
sql="SELECT 'rows updated: ', COUNT(*) \
FROM NEW TABLE \
( UPDATE core.stage_asse t \
SET core_org_id = $org_id \
WHERE LOWER(account) = '$account' ) "
db2 -x "$sql"
rc=$?
if [ "$rc" != "0" ]; then
abort $rc
fi
Is there a way to get to the SQLCA from bash (or any shell
interpreter)?
Thanks again,
Ken
kenfar wrote:
Serge Rielau wrote:
>BTW, you are aware that you can retrieve the rows affected from the SQLCA.ERRD[3] or in SQL PL: GET DIAGNOSTICS rcnt = ROW_COUNT
And that, of course, works also with MERGE
Thanks Serge. I'm piloting this process within a bash shell, and so
calling it like this:
sql="SELECT 'rows updated: ', COUNT(*) \
FROM NEW TABLE \
( UPDATE core.stage_asse t \
SET core_org_id = $org_id \
WHERE LOWER(account) = '$account' ) "
db2 -x "$sql"
rc=$?
if [ "$rc" != "0" ]; then
abort $rc
fi
Is there a way to get to the SQLCA from bash (or any shell
interpreter)?
Try the -a option.
--
Serge Rielau
DB2 Solutions Development
IBM Toronto Lab
IOD Conference http://www.ibm.com/software/data/ond...ness/conf2006/ This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics |
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