Sqlite "Select" statment memory cant release

I select the data from sqlite table with around 300-500 rows
however, i found the memory increase for few Mb where performs the following code.
I found the main problem was the looping of the records
##while(sqlite3_step(selectStatement) == SQLITE_ROW)
even, i did nothing during the while loop block, the memory still increase a lot
any one can teach me how to release the memory
if(sqlite3_open([dbPath UTF8String], &database) == SQLITE_OK)
int key =0;
//loop to check the restis
NSString *sqlString=@"Select * from table_name";
const char *sql_char=[sqlString UTF8String];
//prepare the select statement
int returnValue = sqlite3preparev2(database, sql_char, -1, &selectStatement, NULL);
if(returnValue == SQLITE_OK)
while(sqlite3_step(selectStatement) == SQLITE_ROW)
//do nothing here
sqlite3_reset(selectStatement);

sqlite3finalize(selectstatement);

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LR 2.3RC - Memory not released from Develop

I am running 2.3RC under Windows XP. It's going fine but it still has a memory issue that I observed under 2.2.
After going from Library Grid to Develop, then going back to Grid without doing any actions in Develop (actually, it doesn't matter whether you do anything or not), I see approximately an extra 180M in the VM size in Windows Task Manager. If I then go into Print the VM size stays about the same - about 180M bigger than it should be.
However, if instead, once I return to Grid from Develop, I then use the arrow key and select another image, the memory is released. I can then go back to the original image and the memory does not increase. Then I can go to Print and, once again, the memory does not increase (some minor change - in fact, on my machine, it goes down!).
Looks like as long as the original image is selected, memory from Develop is not being released. As I said at the outset, this is not new in 2.3RC - it also happened in 2.2.
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Anyone else see this on their machines?
Selby Shanly

Ian and Simon - you are correct, it is not a leak. Please note that is 180M - not 180K.
Of course, as users, we simply don't know whether or not it is cached information that actually gets reused, or just a mistake.
The Print Spooler under XP takes a good chunk of memory - why fight for it with LR? What about Photoshop? Often the next thing I do after Develop is go to PS to do soft proofing. PS could use that memory.
The question to Adobe is whether or not this is an oversight. If it is then they alone are in the position to evaluate the risks of changing the code - it might be utterly trivial. If it is deliberate and provides efficiencies then at least it would be interesting to know!
Even with the size of current machines, 180M of memory (YMMV) is still not something to use up lightly for no benefit. And for users who are tight on memory and at the knee of the performance curve, it might make a noticable difference.
But all of this is speculation on my part - let's see what Adobe says.
I do appeciate the comments. Thanks.
Selby

Selecting default memory

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Performace problem in a select statment how to imporve the performance

fist select statment
SELECT    a~extno
          a~guid_lclic       " for next select
          e~ctsim
          e~ctsex
*revised spec 3rd
          f~guid_pobj
          f~amnt_flt
          f~amcur
          f~guid_mobj
          e~srvll     "pk
          e~ctsty     "PK
          e~lgreg "PK
INTO TABLE gt_sagmeld
FROM /SAPSLL/LCLIC as a
INNER JOIN /sapsll/tlegsv as e on elgreg = algreg
* revised spec 3rd
inner join /sapsll/legcon as f on fguid_lclic = aguid_lclic   " for ccngn1 selection
inner join /sapsll/corcts as g on gguid_pobj = fguid_pobj
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sort gt_sagmeld by guid_lclic guid_pobj.
lgreg ctsty srvll
delete adjacent duplicates from gt_sagmeld comparing guid_lclic guid_pobj.
it selects about 20 lakh records
belos select statment whichs is taking time as it is based on the entreis of gt_sagmeld
select /sapsll/corpar~guid_mobj
            /sapsll/corpar~PAFCT
            but000~bpext
            but000~partner
            /sapsll/corpar~parno
            into table gt_but001
    from    /sapsll/corpar
    INNER join but000 on but000partner = /sapsll/corparparno
    for all entries in gt_sagmeld
    where /sapsll/corpar~guid_mobj = gt_sagmeld-guid_mobj
    and    /sapsll/corpar~PAFCT = 'SH'.
   SELECT /sapsll/cuit~guid_cuit         " PK
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          /sapsll/cuit~QUAUM             " to be displayed
          /sapsll/cuit~RPTDT             " to be displayed
         /sapsll/cuhd~guid_cuhd         " next select
          /sapsll/cuit~guid_pr           " next select
INTO table gt_sapsllcuit
FROM /sapsll/cuit
inner join /sapsll/cuhd on /sapsll/cuitguid_cuhd = /sapsll/cuhdguid_cuhd
FOR all entries in gt_sagmeld
WHERE /sapsll/cuit~guid_cuit = gt_sagmeld-guid_pobj.
Delete adjacent duplicates from gt_sapsllcuit[].
       if not gt_sapsllcuit[] is initial.

hi navenet
that didnt worked
we need to try ur range options
but not sure what you told in the last mail as not clear with range can u pls eloboragte more i am pasting the full code here
SELECT     a~extno
           a~guid_lclic       " for next select but000
           e~ctsim
           e~ctsex
           e~srvll
           e~ctsty
           e~lgreg
INTO TABLE gt_sagmeld
FROM /SAPSLL/LCLIC as a
INNER JOIN /sapsll/tlegsv as e on elgreg = algreg
                           where   a~extno in s_extno.
sort gt_sagmeld by guid_lclic.
delete adjacent duplicates from gt_sagmeld comparing all fields.
IF not gt_sagmeld[] is initial.
SELECT /sapsll/legcon~guid_lclic
          /sapsll/legcon~guid_pobj
          /sapsll/legcon~amnt_flt
          /sapsll/legcon~amcur
           but000~bpext
           *revised spec
           /sapsll/corpar~PAFCT
          /sapsll/legcon~guid_mobj
         /sapsll/cuit~guid_cuit
INTO TABLE gt_but000
FROM /SAPSLL/LEGCON
for all entries in gt_sagmeld
where /SAPSLL/legcon~guid_lclic = gt_sagmeld-guid_lclic.
        IF NOT GT_BUT000[] IS INITIAL.
       sort gt_but000 by guid_mobj.
       delete adjacent duplicates from gt_but000 comparing guid_mobj.
     select /sapsll/corpar~guid_mobj
            /sapsll/corpar~PAFCT
            /sapsll/corpar~parno
            into table gt_but001
    from    /sapsll/corpar
    for all entries in gt_but000
    where /sapsll/corpar~guid_mobj = gt_but000-guid_mobj.
   and    /sapsll/corpar~PAFCT = 'SH'.
DELETE gt_but001 where PAFCT <> 'SH'.
*sort gt_corpar by parno.
*delete adjacent duplicates from gt_corpar comparing parno.
*select gd000~partner
      gd000~bpext
     from gd000 into table gt_but001
for all entries in gt_corpar
where gd000~partner = gt_corpar-parno.
my ultimat aim is to select bpext from gd000
can u please explain how to use ranges here and what is the singnificance and how ill i read the data from the final table if we use ranges
regards
Nishant

Query in select statment

Hi ,
what is the difference between,select single and
select upto one row .
In a select statment .
Thanks ,
shankar.

According to SAP Performance course the SELECT UP TO 1 ROWS is faster than SELECT SINGLE because you are not
using all the primary key fields.
select single is a construct designed to read database records with primary key. In the absence of the primary key,
it might end up doing a sequential search, whereas the select up to 1 rows may assume that there is no primary key
supplied and will try to find most suitable index.
The best way to find out is through sql trace or runtime analysis.
Use "select up to 1 rows" only if you are sure that all the records returned will have the same value for the field(s)
you are interested in. If not, you will be reading only the first record which matches the criteria, but may be the
second or the third record has the value you are looking for.
The System test result showed that the variant Single * takes less time than Up to 1 rows as there is an additional
level for COUNT STOP KEY for SELECT ENDSELECT UP TO 1 ROWS.
The 'SELECT SINGLE' statement selects the first row in the database that it finds that fulfils the 'WHERE' clause
If this results in multiple records then only the first one will be returned and therefore may not be unique.
Mainly: to read data from
The 'SELECT .... UP TO 1 ROWS' statement is subtly different. The database selects all of the relevant records that
are defined by the WHERE clause, applies any aggregate, ordering or grouping functions to them and then returns
the first record of the result set.
Mainly: to check if entries exist.
You can refer to the below link..
http://www.sap-img.com/abap/difference-between-select-single-and-select-upto-one-rows.htm

Select statment - fill internal table

Hi,
I have following situation:
TYPES: BEGIN OF q_data,
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         v_xxx(20) type c,
       END OF q_data.
DATA: a_data TYPE STANDARD TABLE OF q_data.
Now I would write a select statment and fill the table a_data.
select lqua~matnr lqua~werks... from lqua inner join mch1 into (i_lqua-matnr, i_lqua-werks.....)...
Is it possible to write a statement without writing the whole structure (all the names of columns) of lqua in the SQL-statement (lquamatnr lquawerks lqua~........)?
Thanks
Michael

1. you can write that but i think you have to write that in SELECT ...ENDSELECT.
select lquamatnr lquawerks... from lqua inner join mch1 into (i_lqua-matnr, i_lqua-werks.....
append i_lqua.
endselect.
2. OR you can use INTO CORRESPONDING FIELDS OF TABLE
   select lquamatnr lquawerks... from lqua inner join mch1 into corresponding fields of table i_lqua.

Using distinct and orderby in the select statment

Hi All,
Can anyone tell me what is the purpose of using distinct and orderby in the select statment.

Hi,
Using the distinct function with more than one column yields some substantial results. SQL will return the rows with distinct or unique combinations of those columns. Assume this same employee table has another column including the salary of each employee. With the use of the distinct function we can pull a list of unique job titles - salaries.
SQL Code:
SELECT DISTINCT job_titles, salary FROM employees;
SQL has returned all the rows with unique combinations of job titles and salaries. Any duplicate combinations of job titles and salaries will be ignored. For example if we had two CEOs in the table making the same salary each year, only one row would be returned but if we had two CEOs with different salaries, both rows would be returned.
Order by
The SQL ORDER BY clause comes in handy when you want to sort your SQL result sets by some column(s). For example if you want to select all the persons from the already familiar Customers table and order the result by date of birth, you will use the following statement:
SELECT * FROM Customers
ORDER BY DOB
As you can see the rows are sorted in ascending order by the DOB column, but what if you want to sort them in descending order? To do that you will have to add the DESC SQL keyword after your SQL ORDER BY clause:
SELECT * FROM Customers
ORDER BY DOB DESC
If you don't specify how to order your rows, alphabetically or reverse, than the result set is ordered alphabetically, hence the following to SQL expressions produce the same result:
SELECT * FROM Customers
ORDER BY DOB
SELECT * FROM Customers
ORDER BY DOB ASC
You can sort your result set by more than one column by specifying those columns in the SQL ORDER BY list. The following SQL expression will order by DOB and LastName:
SELECT * FROM Customers
ORDER BY DOB, LastName
if its useful reward points

Select statment - where clause

Hello experts,
I want to write a select statment,
e.g.
select * from pa0001 where ename like '%Rahul%'.
so this stamemt will give me all DB rows in which ename contains Rahul but i also want rows those are having rahul or rAhul or raHul or RAhul or RAHul or RaHul like wise....
can u plz help me on this ???

Hi
Find the below code which may be useful for your requirement
ranges:r_sel for lfa1-name1.
data:v_name(5) type c value 'laxmi'.
data:len type i,
v_num type i,
v_num1 type i,
v_num2 type i,
v_name1(5) type c,
v_name2(5) type c,
v_name_final(7) type c,
v_char type c.
len = strlen( v_name ).
clear:v_name1,v_name2,v_name_final,v_num,v_num1,v_num2.
v_num1 = len.
do len times.
v_num1 = v_num1 - 1.
v_char = v_name+v_num(1).
v_num2 = v_num.
v_num = v_num + 1.
if v_num1 is initial.
    clear:v_name1.
else.
    v_name1 = v_name+v_num(v_num1).
endif.
if v_num2 is not initial.
    v_name2 = v_name+0(v_num2).
endif.
translate v_char to upper case.
concatenate '' v_name2 v_char v_name1 '' into v_name_final.
r_sel-option = 'CP'.
r_sel-sign = 'I'.
r_sel-low = v_name_final.
clear:r_sel-high.
append r_sel.
translate v_char to lower case.
concatenate '' v_name2 v_char v_name1 '' into v_name_final.
r_sel-option = 'CP'.
r_sel-sign = 'I'.
r_sel-low = v_name_final.
clear:r_sel-high.
append r_sel.
enddo.
Use range parameter in your select statement.
Regards
Sripal

Select statment Query

Hi,
I am devloping Query with the table DBERCHZ1
it having two fields
    V_ ABRMENGE        value 456
   N_ ABRMENGE        value   0.67899
Here i want to print as 456.67899 with one select statment.
is any way to sum in select statment.
Thanks

Hi,
I have just given a code snippet similar to your requirement.
DATA:   average TYPE p DECIMALS 2,
        sum     TYPE p DECIMALS 2.
SELECT AVG( luggweight ) SUM( luggweight )
INTO (average, sum)
FROM sbook.
WRITE: / 'Average:', average,
       / 'Sum    :', sum.
Just replace with your variables and let me know if it works.
Thanks,
Harini

Dynamic field in select statment.

Hello,
I created a report in which i have two checkboxes in the selection screen. The first checkbox is for the option to bring or not, initial purchase requisitions (BANFN) from EKPO and the second is to bring initial or not, RFQs
(ANFNR). I want the select statment to have this form:
select ...
from ekpo
into g_table
where ..
and dynamic field = " ".
Can this be done ?
i tried to put it as a string but it didnt work. (data: dynamic field type string value "EKPO-BANFN")
P.S i know that it can be by writing the same select code twice.
I just wonder if this can be done by this way
\Regards.

Hey Nick,
I have more conditions than the one i said before , should all be in the lv_where_clause ?
check my code.
DATA: G_CHBFLD type STRING.
G_CHBFLD = 'P~BANFN = '' " '.
FORM SELECT_DATA_EKPO_EKKO.
SELECT .....
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        ON PEBELN = KEBELN
          INTO CORRESPONDING FIELDS OF TABLE GT_EKPOEKKO
            WHERE K~EBELN IN S_EBELN
            AND K~AEDAT IN S_AEDAT
            AND K~BSTYP IN S_BSTYP
            and ( G_CHBFLD ) .   -
> //DEBUGER ")" is not a valid comparison operator. comparison operator.

Fix Variable in select statment

Hi,
Can we define a variable in select statment .
Example :
Select firstname , lastname
from employees;
in this simple select statment can we define x as number ?

Maybe
SQL> variable x number
SQL> exec :x := 3
PL/SQL procedure successfully completed.
SQL> select :x x, last_name from employees where rownum <= 3
X                                LAST_NAME
3                                King
3                                Kochhar
3                                De Haan
3 rows selected.

Problem in select statment & loop of itab.

Hi all,
      I am having on ITAB1 for, ex which is having five line items or more .
iam also using select statment SINGLE statment for 7 times ,to select values for
different data base table.
for ex,
loop at itab.
   1---> SELECT SINGLE Z_CTRY_ORIG INTO LS_PSHDESN-Z_CTRY_ORIG FROM ZLE_PART_MST
WHERE                           WERKS        = ITAB1-LGNUM
AND                                 MATNR        = ITAB1-MATNR .
2---
3---
4---
endloop
i want to remove from the loop statment and i have to select the datas ..
can any one sugesset some possible ways....
regards
veera

hi,
Solution:
Never use select single in loop at itab!! for that :
Solution 1:
say ur main table is ITAB and rferring this u want to select data from other tables.
SELECT SINGLE Z_CTRY_ORIG INTO LS_PSHDESN-Z_CTRY_ORIG FROM ZLE_PART_MST
into table itab2
FOR ALL ENTRIES IN ITAB
WHERE WERKS = ITAB-LGNUM
AND MATNR = ITAB-MATNR.
With this what will hapeen , u will get all records in itab2 which u can update itab1(master) using loop.
solution 2:
Instead of all this use JOINs in select statement properly and u can fetch data in one shot this will reduce database load as well as abap load ( More than 3 joins in SELECT stmt are not recommeded but can be used)
I believe this is perfect solution if and only if u are giving joins on KEY fields only. Same is applied for wherer clause.
Hope this will help u, if not revert.
Jogdand M B

Running DBMS_SQL.EXECUTE in Oracle Select Statment

HI i have table Emp which has 3 column namely name,st_date and end_date. table has 3 records as below:
name st_date end_date
X sysdate+10 sysdate+50
Y sysdate+12 sysdate+30
Z sysdate+15 sysdate+35
Now if i run the run select statment select * from emp, it will show above values. but i need the values in the columns to be executed and shown in the select statemtn with alias column i.e. assign sysdate is : 01-jan-2013
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Advance Thanks for your help!!
i have restriction not able to create function, so i need to try in the sql statment only!!

997199 wrote:
HI i have table Emp which has 3 column namely name,st_date and end_date. table has 3 records as below:
name st_date end_date
X sysdate+10 sysdate+50
Y sysdate+12 sysdate+30
Z sysdate+15 sysdate+35
Now if i run the run select statment select * from emp, it will show above values. but i need the values in the columns to be executed and shown in the select statemtn with alias column i.e. assign sysdate is : 01-jan-2013
so i need the o/p to be:
X 20-Jan-2013 19-Feb-2013
Y 22-Jan-2013 30-Jan-2013
Z 15-Jan-2013 04-feb-2013
i dont want to create a function in plsql and pass the values to it. if u use select name,dbms_sql.execute(dbms_sql.parse(dbms_sql.open(),'select st_date from emp'))) is ok for me.
Advance Thanks for your help!!
i have restriction not able to create function, so i need to try in the sql statment only!!How do I ask a question on the forums?
SQL and PL/SQL FAQ
what datatype are st_date & end_date?

Dynamic memory not released to host

Dear Techies,
Ours is a small Hyper V virtual server infrastructure with three DELL power-edge physical hosts(Windows server 2012 Datacenter) and around 15 virtual machines running on top of it. The hosts are added to fail-over cluster. Each host has 95 GB RAM. All the
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We have installed terminal services(TS licensing, TS connection broker, TS session host) in four VMs with the following dynamic memory settings:
Start-up RAM : 2048 MB
Minimum RAM : 2048 MB
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FTPs communication allowed for File Transfer
McAfee Agent is configured (Virus Scanner)
Nimsoft Robot Agent Configured – Monitoring
Terminal Service
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monitoring tools look 80% (3.2 GB out of 4 GB).
As a result, the memory utilization report is always based on the current dynamically allocated RAM and not calculated based on the maximum assigned RAM(8GB in this case). To make it clear: If the
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Is there any way to release the driver locked memory from the VM.?
Regards,
Auditya N

I am not really clear on the point of your question.
Allocated RAM is what is currently in use / allocated to a VM out of the physical RAM pool. It is Demand + Buffer. The demand is based on the applications in the VM and what they think they need and how efficiently they return unused memory
to the machine. This has nothing to do with in-application paging (which happens a lot with Terminal Servers).
So yes, the memory utilization is accurate in relation to physical RAM utilization.
Dynamic Memory is about efficiency, not about over-allocation. Hyper-V can never give VMs more RAM than is in the physical RAM pool. The VMs can be configured to have more RAM than is in the physical RAM pool - but the VMs will hit the top of
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So, you maximum allocated could go beyond what is possible. But that would mean that your utilization would be artificially low if this was used in the calculation.
Brian Ehlert
http://ITProctology.blogspot.com
Learn. Apply. Repeat.

Table list for select statment

hello all,
I been trying to setup a plsql statment to run a select statment from tables that are in a list.
this is what I have done so far as a test and it is not letting me do it and I don't know why can anyone point me in the right direction.
declare
cursor main_log is
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cml main_log%rowtype;
var1 varchar2(35);
var2 varchar2(35;
begin
open main_log;
fetch main_log into cml;
var1 := cml.schema_name;
var2 := cml.table_name;
select *
from var1.var2;
close main_log;
end;
thanks

In PL/SQL you cannot just "select", as PL/SQL is a server sided language. You must use a record or variable to hold the selected data. Anyway, for selecting from different tables dynamically, you can use (Native) Dynamic SQL or Ref Cursors. Take a look at the documentation, especially the "PL/SQL User's Guide and Reference":
http://www.oracle.com/pls/db102/portal.portal_db?selected=1
Regards,
Gerd

Sqlite "Select" statment memory cant release

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