Empty resultset even though it shouldn't be empty

Dear experts,
today i did experience a behaviour of hana that i cannot understand.
In order to enable you to reenact the phenomenon i created the following demo code:
######################### PREPERATION
-- creating a copy of a sap demo content table
create column table "SAP_HANA_DEMO"."sap.hana.democontent.epm.data::EPM.MasterData.Addresses_TEST"
like "SAP_HANA_DEMO"."sap.hana.democontent.epm.data::EPM.MasterData.Addresses" with data;
-- set two columns to null
Update "SAP_HANA_DEMO"."sap.hana.democontent.epm.data::EPM.MasterData.Addresses_TEST"
set CITY = NULL;
Update "SAP_HANA_DEMO"."sap.hana.democontent.epm.data::EPM.MasterData.Addresses_TEST"
set POSTALCODE = NULL;
######################### / PREPERATION
######################### INITIAL
-- returns an empty resultset (initial version)
select col from (
select 'CITY' as col, count(*) i from "SAP_HANA_DEMO"."sap.hana.democontent.epm.data::EPM.MasterData.Addresses_TEST" where CITY is not NULL union all
select 'POSTALCODE', count(*) from "SAP_HANA_DEMO"."sap.hana.democontent.epm.data::EPM.MasterData.Addresses_TEST" where POSTALCODE is not NULL
) where i = 0;
######################### / INITIAL
######################### ALTERED VERSIONS
-- returns the expected resultset (outer select contains i)
select col, i from (
select 'CITY' as col, count(*) i from "SAP_HANA_DEMO"."sap.hana.democontent.epm.data::EPM.MasterData.Addresses_TEST" where CITY is not NULL union all
select 'POSTALCODE', count(*) from "SAP_HANA_DEMO"."sap.hana.democontent.epm.data::EPM.MasterData.Addresses_TEST" where POSTALCODE is not NULL
) where i = 0;
-- returns the expected resultset (check for "is null")
select col from (
select 'CITY' as col, count(*) i from "SAP_HANA_DEMO"."sap.hana.democontent.epm.data::EPM.MasterData.Addresses_TEST" where CITY is NULL union all
select 'POSTALCODE', count(*) from "SAP_HANA_DEMO"."sap.hana.democontent.epm.data::EPM.MasterData.Addresses_TEST" where POSTALCODE is NULL
) where i = (select count(*) from "SAP_HANA_DEMO"."sap.hana.democontent.epm.data::EPM.MasterData.Addresses_TEST");
-- returns the expected resultset (now without where)
select col from (
select 'CITY' as col, count(CITY) i from "SAP_HANA_DEMO"."sap.hana.democontent.epm.data::EPM.MasterData.Addresses_TEST" union all
select 'POSTALCODE', count(POSTALCODE) from "SAP_HANA_DEMO"."sap.hana.democontent.epm.data::EPM.MasterData.Addresses_TEST"
) where i = 0
######################### ALTERED VERSIONS
The question is why does the initial statement return an empty resultset?
And please consider that the initial version works just fine under rev68 (resultset is not empty), but returns an empty resultset when being executed on a rev70 system.
Many thanks in advance for your feedback.

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KRTEMP 9 2005-06-27 17:09:30.0 5436 SELECT VALUE FROM NLS_INSTANCE_PARAMETERS WH
ERE PARAMETER ='NLS_
KRTEMP 9 2005-06-27 17:09:30.0 5436 DATE_FORMAT'
KRTEMP 34 2005-06-26 18:51:01.0 3629 rename tstore to store
KRTEMP 37 2005-06-27 17:09:25.0 4209 SELECT VALUE FROM NLS_INSTANCE_PARAMETERS W
HERE PARAMETER ='NLS_
KRTEMP 37 2005-06-27 17:09:25.0 4209 DATE_FORMAT'
KRTEMP 74 2005-06-27 17:09:26.0 17625 select appId from profile_application_tabl
e wher
KRTEMP 74 2005-06-27 17:09:26.0 17625 e appName=:1 and appVersion=:2
KRTEMP 83 2005-06-27 17:09:25.0 1771 SELECT VALUE FROM NLS_INSTANCE_PARAMETERS W
HERE PARAMETER ='NLS_
KRTEMP 83 2005-06-27 17:09:25.0 1771 DATE_FORMAT'
KRTEMP 105 2005-06-27 17:09:30.0 3296 SELECT VALUE FROM NLS_INSTANCE_PARAMETERS
WHERE PARAMETER ='NLS_
KRTEMP 105 2005-06-27 17:09:30.0 3296 DATE_FORMAT'
KRTEMP 111 2005-06-27 17:09:25.0 4878 SELECT VALUE FROM NLS_INSTANCE_PARAMETERS
WHERE PARAMETER ='NLS_
KRTEMP 111 2005-06-27 17:09:25.0 4878 DATE_FORMAT'
KRTEMP 153 2005-06-27 17:09:30.0 31065 SELECT VALUE FROM NLS_INSTANCE_PARAMETERS
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KRTEMP 153 2005-06-27 17:09:30.0 31065 DATE_FORMAT'
KRTEMP 163 2005-06-27 17:09:30.0 3205 SELECT VALUE FROM NLS_INSTANCE_PARAMETERS
WHERE PARAMETER ='NLS_
KRTEMP 163 2005-06-27 17:09:30.0 3205 DATE_FORMAT'
KRTEMP 183 2005-06-27 17:09:30.0 3465 SELECT VALUE FROM NLS_INSTANCE_PARAMETERS
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erial#,sql.sql_text fr
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dress = s.sql_address
KRTEMP 256 2005-06-27 17:09:30.0 2718 and sql.hash_value = s.sql_hash_value and
upper(s.username) like
KRTEMP 256 2005-06-27 17:09:30.0 2718 'KRTEMP%' order by s.username ,s.sid ,s.s
erial# ,sql.piece
KRTEMP 9 2005-06-27 17:09:30.0 5436 SELECT VALUE FROM NLS_INSTANCE_PARAMETERS WH
ERE PARAMETER ='NLS_
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KRTEMP 37 2005-06-27 17:09:25.0 4209 SELECT VALUE FROM NLS_INSTANCE_PARAMETERS W
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e wher
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KRTEMP 83 2005-06-27 17:09:25.0 1771 SELECT VALUE FROM NLS_INSTANCE_PARAMETERS W
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KRTEMP 111 2005-06-27 17:09:25.0 4878 SELECT VALUE FROM NLS_INSTANCE_PARAMETERS
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KRTEMP 153 2005-06-27 17:09:30.0 31065 SELECT VALUE FROM NLS_INSTANCE_PARAMETERS
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e wher
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KRTEMP 232 2005-06-27 17:09:31.0 5893 select s.username,s.sid ,s.logon_time, s.s
erial#,sql.sql_text fr
KRTEMP 232 2005-06-27 17:09:31.0 5893 om v$session s, v$sqltext sql where sql.ad
dress = s.sql_address
KRTEMP 232 2005-06-27 17:09:31.0 5893 and sql.hash_value = s.sql_hash_value and
upper(s.username) like
KRTEMP 232 2005-06-27 17:09:31.0 5893 'KRTEMP%' order by s.username ,s.sid ,s.s
erial# ,sql.piece
KRTEMP 34 2005-06-26 18:51:01.0 3629 rename tstore to store
KRTEMP 37 2005-06-27 17:09:25.0 4209 SELECT VALUE FROM NLS_INSTANCE_PARAMETERS W
HERE PARAMETER ='NLS_
KRTEMP 37 2005-06-27 17:09:25.0 4209 DATE_FORMAT'
KRTEMP 74 2005-06-27 17:09:26.0 17625 select appId from profile_application_tabl
e wher
KRTEMP 74 2005-06-27 17:09:26.0 17625 e appName=:1 and appVersion=:2
KRTEMP 83 2005-06-27 17:09:25.0 1771 SELECT VALUE FROM NLS_INSTANCE_PARAMETERS W
HERE PARAMETER ='NLS_
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KRTEMP 111 2005-06-27 17:09:25.0 4878 SELECT VALUE FROM NLS_INSTANCE_PARAMETERS
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KRTEMP 232 2005-06-27 17:09:31.0 5893 select s.username,s.sid ,s.logon_time, s.s
erial#,sql.sql_text fr
KRTEMP 232 2005-06-27 17:09:31.0 5893 om v$session s, v$sqltext sql where sql.ad
dress = s.sql_address
KRTEMP 232 2005-06-27 17:09:31.0 5893 and sql.hash_value = s.sql_hash_value and
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KRTEMP 256 2005-06-27 17:09:31.0 2783 select s.username,s.sid ,s.logon_time, s.s
erial#,sql.sql_text fr
KRTEMP 256 2005-06-27 17:09:31.0 2783 om v$session s, v$sqltext sql where sql.ad
dress = s.sql_address
KRTEMP 256 2005-06-27 17:09:31.0 2783 and sql.hash_value = s.sql_hash_value and
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KRTEMP 83 2005-06-27 17:09:25.0 1771 SELECT VALUE FROM NLS_INSTANCE_PARAMETERS W
HERE PARAMETER ='NLS_
KRTEMP 83 2005-06-27 17:09:25.0 1771 DATE_FORMAT'
KRTEMP 105 2005-06-27 17:09:30.0 3296 select * from contact
KRTEMP 111 2005-06-27 17:09:25.0 4878 SELECT VALUE FROM NLS_INSTANCE_PARAMETERS
WHERE PARAMETER ='NLS_
KRTEMP 111 2005-06-27 17:09:25.0 4878 DATE_FORMAT'
KRTEMP 153 2005-06-27 17:09:30.0 31065 select * from contact
KRTEMP 163 2005-06-27 17:09:30.0 3205 select * from contact
KRTEMP 173 2005-06-27 17:09:31.0 3922 select s.username,s.sid ,s.logon_time, s.s
erial#,sql.sql_text fr
KRTEMP 173 2005-06-27 17:09:31.0 3922 om v$session s, v$sqltext sql where sql.ad
dress = s.sql_address
KRTEMP 173 2005-06-27 17:09:31.0 3922 and sql.hash_value = s.sql_hash_value and
upper(s.username) like
KRTEMP 173 2005-06-27 17:09:31.0 3922 'KRTEMP%' order by s.username ,s.sid ,s.s
erial# ,sql.piece
KRTEMP 183 2005-06-27 17:09:30.0 3465 select * from contact
KRTEMP 191 2005-06-27 17:09:26.0 5438 select appId from profile_application_tabl
e wher
KRTEMP 191 2005-06-27 17:09:26.0 5438 e appName=:1 and appVersion=:2
KRTEMP 232 2005-06-27 17:09:31.0 5893 select s.username,s.sid ,s.logon_time, s.s
erial#,sql.sql_text fr
KRTEMP 232 2005-06-27 17:09:31.0 5893 om v$session s, v$sqltext sql where sql.ad
dress = s.sql_address
KRTEMP 232 2005-06-27 17:09:31.0 5893 and sql.hash_value = s.sql_hash_value and
upper(s.username) like
KRTEMP 232 2005-06-27 17:09:31.0 5893 'KRTEMP%' order by s.username ,s.sid ,s.s
erial# ,sql.piece
KRTEMP 256 2005-06-27 17:09:31.0 2783 select s.username,s.sid ,s.logon_time, s.s
erial#,sql.sql_text fr
KRTEMP 256 2005-06-27 17:09:31.0 2783 om v$session s, v$sqltext sql where sql.ad
dress = s.sql_address
KRTEMP 256 2005-06-27 17:09:31.0 2783 and sql.hash_value = s.sql_hash_value and
upper(s.username) like
KRTEMP 256 2005-06-27 17:09:31.0 2783 'KRTEMP%' order by s.username ,s.sid ,s.s
erial# ,sql.piece
KRTEMP 9 2005-06-27 17:09:30.0 5436 select * from contact
KRTEMP 34 2005-06-26 18:51:01.0 3629 rename tstore to store
KRTEMP 37 2005-06-27 17:09:25.0 4209 SELECT VALUE FROM NLS_INSTANCE_PARAMETERS W
HERE PARAMETER ='NLS_
KRTEMP 37 2005-06-27 17:09:25.0 4209 DATE_FORMAT'
KRTEMP 74 2005-06-27 17:09:26.0 17625 select appId from profile_application_tabl
e wher
KRTEMP 74 2005-06-27 17:09:26.0 17625 e appName=:1 and appVersion=:2
KRTEMP 83 2005-06-27 17:09:25.0 1771 SELECT VALUE FROM NLS_INSTANCE_PARAMETERS W
HERE PARAMETER ='NLS_
KRTEMP 83 2005-06-27 17:09:25.0 1771 DATE_FORMAT'
KRTEMP 105 2005-06-27 17:09:30.0 3296 select * from contact
KRTEMP 111 2005-06-27 17:09:25.0 4878 SELECT VALUE FROM NLS_INSTANCE_PARAMETERS
WHERE PARAMETER ='NLS_
KRTEMP 111 2005-06-27 17:09:25.0 4878 DATE_FORMAT'
KRTEMP 153 2005-06-27 17:09:30.0 31065 select * from contact
KRTEMP 163 2005-06-27 17:09:30.0 3205 select * from contact
KRTEMP 183 2005-06-27 17:09:30.0 3465 select * from contact
KRTEMP 191 2005-06-27 17:09:26.0 5438 select appId from profile_application_tabl
e wher
KRTEMP 191 2005-06-27 17:09:26.0 5438 e appName=:1 and appVersion=:2
KRTEMP 204 2005-06-27 17:09:32.0 1478 select s.username,s.sid ,s.logon_time, s.s
erial#,sql.sql_text fr
KRTEMP 204 2005-06-27 17:09:32.0 1478 om v$session s, v$sqltext sql where sql.ad
dress = s.sql_address
KRTEMP 204 2005-06-27 17:09:32.0 1478 and sql.hash_value = s.sql_hash_value and
upper(s.username) like
KRTEMP 204 2005-06-27 17:09:32.0 1478 'KRTEMP%' order by s.username ,s.sid ,s.s
erial# ,sql.piece
KRTEMP 232 2005-06-27 17:09:31.0 5893 select s.username,s.sid ,s.logon_time, s.s
erial#,sql.sql_text fr
KRTEMP 232 2005-06-27 17:09:31.0 5893 om v$session s, v$sqltext sql where sql.ad
dress = s.sql_address
KRTEMP 232 2005-06-27 17:09:31.0 5893 and sql.hash_value = s.sql_hash_value and
upper(s.username) like
KRTEMP 232 2005-06-27 17:09:31.0 5893 'KRTEMP%' order by s.username ,s.sid ,s.s
erial# ,sql.piece
KRTEMP 256 2005-06-27 17:09:31.0 2783 select s.username,s.sid ,s.logon_time, s.s
erial#,sql.sql_text fr
KRTEMP 256 2005-06-27 17:09:31.0 2783 om v$session s, v$sqltext sql where sql.ad
dress = s.sql_address
KRTEMP 256 2005-06-27 17:09:31.0 2783 and sql.hash_value = s.sql_hash_value and
upper(s.username) like
KRTEMP 256 2005-06-27 17:09:31.0 2783 'KRTEMP%' order by s.username ,s.sid ,s.s
erial# ,sql.piece

Why do the connections stay open? Because you haven't closed them.
You answered your own question: obviously closing the ResultSet is NOT the same thing as closing the connection.
When you do a query, you want to get the connection, statement, and result set, load the data from the result set into an object or data structure, and then immediately close them all again in reverse order of creation. You want to keep the scope as narrow as possible. You want to use a connection pool to keep the cost of obtaining a connection down. You should leave caching of the PreparedStatements to the JDBC driver.
%

IPhoto asked to upgrade library and has now come up empty even though my iPhoto file is over 130GB. How do I get back my photos?

iPhoto asked to upgrade library and has now come up empty even though my iPhoto file is over 130GB. How do I get back my photos? I am using OS X Yosemite 10.10.1 with Mavericks. My iPhoto is 9.6. I am very concerned as this file has all my photos for the last 15 years!

If the iPhoto Library is still 130 GB large, your photos are probably still inside; perhaps the library has a corruption.
Or the iPhoto Library is on drive, that is incompatible with iPhoto. Where is your iPhoto Library stored?
To check for a library corruption: Ctrl-click or right-click the iPhoto library and select "Show Package Contents". This will show the folders inside the library package.
Are there folders called "Masters" or "Old Masters"?
If there is a folder "Old Masters", you are having a problem with recent bug, that corrupts iPhoto Libraries when upgrading. In that case, it would be best to restore your iPhoto Library from a backup you made before you upgraded to Yosemite.
Or, if no backup is available, copy the "old Masters" folder to a folder on your Desktop and create a new iPhoto library and import the Old Masters folder.
If there is no folder "old Masters" try to rebuild your iPhoto Library with the First Aid tools :
Make a backup copy of your iPhoto Library, but don't overwrite any older backups.
To launch the "First Aid Tools" hold down the options-command keys ⌥⌘ while double clicking your iPhoto Library.
Keep the keys held down firmly until the First Aid panel appears.
Select "Rebuild Database".

IPod seems to be full even though I emptied everything...

Hi,
I have deleted all the songs in my iPod Shuffle and deleted all the files in it as well. However it only gives 1.2 MB available space and I can not move anything to it anymore. This happened after I stuffed it with loads of files until it was full. I moved all of them to the trash (and it does not seem to have anymore data in it) but iPod still seems to be full. I tried to restore it to factory settings but my iPod software updater does not recognize my iPod, no matter how many times I tried to "reset" it as shown on the iPod support homepage. This is even though iTunes can see my iPod and I can access it on the finder as well. It is the updater software only that seem to be unable to see the iPod. (I tried all the versions from 1.3 to 2.0.1.)
Please help...
g3 laptop no-firewire Mac OS X (10.2.x)
g3 laptop no-firewire Mac OS X (10.2.x)

Thanks,
Emptying the trash solved the problem of space.
Now I am happily listening to my music again.
The iPod Software Updater is still not seeing the iPod though.
The version numbers I gave refered to the updater software.
I will try it on another computer.
Thanks again...
pturk
g3 laptop no-firewire Mac OS X (10.2.x)

Some genres are empty even though all titles have been synchronized.

Some genres are empty, other genres do not show all titles - even though all titles have been synchronized. I have already reset my ipod but the problem remains. Can anybody help me out?

Only the songs or playlists or selections that you have checked for syncing will be copied to the iPod. It is, therefore, natural that if you browes your iPod it will not contain all the Genres you see in iTunes.
If you did select the Genres in iTunes for syncing (and they are actually populated with songs), then there's something else that's wrong. One step at a time...

TS1702 i can not use my master card card anymore even though it is not empty

i have bought a master card which can be used to purchase apps on the app store, 5 days ago the billing info is rejected even though i am sure that the card is not empty, so what shall i do? callimg the bank where i bought it from, deactivate my account,.....
and if i change my apple id how can i get the apps that i spent money on ???

Contact iTunes Billing Support. Here's how:
iTunes Store: Contacting billing support

Me and my collegue have different versions of InDesign CC even though it is in the cloud - shouldn´t we automatically have the same?

Me and my collegue have different versions of InDesign CC even though it is in the cloud - shouldn´t we automatically have the same?

Without exact system info and version info nobody can tell you anything. From failed updates to simple compatibility issues and one of the machines not meeting the requirements for a newer version this could be anything.
Mylenium

HT4557 I have music on my second Iphone, but when I hook myphone to my computer the library is empty even though there is music on the phone. When I try to add music to the phone I et an errror message that says it can not be moved because the phone can

I can not manage music on an additional device. Thephone has music from my library on it. But when I connect the phone to my computer it shows there is nothing on the phone. When I gry to add a song, I get an error message that says can not be copied to IPhone Helen(name of the phone) because it can not be found, even though it shows on the coputer

See this excellent user tip from another forum member turingtest2 outlining the different methods and software available to help you copy content from your iPod back to your new Mac and into iTunes.
Recovering your iTunes library from your iPod or iOS device
Then proceed to do the Erase and Sync or restore the device.
B-rock

Empty resultset even though it shouldn't be empty

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