Help on Pinning Query into memory

Hi,
I have a very simple query which is as follows:
select col1, col2, col3
from table1
where <cond1> and <cond2>The query is hitting all the indexes and is tuned. The table is not a very big one but has around 700 rows.
Now, the problem.
My job which runs in UNIX for 15 hours uses this query. This query is executed every 10-15 seconds. So you can imagine the no of times its been executed in 15 hours.
Is there any way to put this query in memory at the start so that my performance is enhanced by some way and unnecessary hits are saved?
I know about the DBMS_SHARED_POOL.KEEP option. But is there any other way of doing it?
Thanks in advance.
Bharat

You could create your own kind of hash function.
Put the result of the query in a packaged pl/sql variable/array.
When the next call to your function is with the same values, then fetch the result from the array. if not get the result from the table and put it in the array.
The whole packaged including array is kept in memory for your session.
Of cause I'm assuming that the data in the table doesn't change.

Similar Messages

I need help making a query into a recordset

I have a detail page with a query that uses the "IN" statement to select from multiple states from the state_label field in my table
and display the zips, cities, and counties related to those states.
The query works great if I use regular menus with a single selection, but I need a comma separated menu
to be used to allow for multiple zips, cities and counties to be selected.
In order to make a texbox into a comma separated menu, I need to define my recordset to retrieve the values, I just can't figure out how to make amy query into a recordset.
This is the query.
<?php require_once('../Connections/duitop.php'); ?>
<?php $state_list = $_REQUEST['States_served']; ?>
<?php
mysql_select_db($database_duitop, $duitop);
$query_TONY = ("SELECT * FROM zip_code WHERE state_label IN (";
for ($i=0; $i<=count($state_list)-1; $i++) {
//echo $state_list[$i];
$query_TONY = $query_TONY . "'" . $state_list[$i] . "'";
if ($i < count($state_list)-1) {
$query_TONY = $query_TONY . ", ";
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CAn any one please help with this problem , I've been trying for a week with no luck.
This is the way my detail page looks like.
Cities, Counties, and Zipcodes in your states

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Help with SQL query into Crystal

Afternoon all,
I am trying to convert the following SQL query into Crystal by using the tables given in the query however the relationship given in the query is bit awkward, in a sense that I cannot create a relationship under Crystal desgin.
Here is the query
select count(order_progressed.order_no),reason_code
from order_progressed,lab_reasons, rework_groups
where
order_progressed.date_created=Today
and (order_progressed.order_status=from_gate
and lab_reasons.reason_code between from_reason and to_reason)
group by lab_reasons.reason_code
order by 2
We have three tables
1: Order_Progressed
2: Lab Reasons
3: Rework_Groups
Order_progressed can be linked with rework_group by Status (if you see the line order_progressed.order_status=from_gate)
However how to link the following line?
lab_reasons.reason_code between from_reason and to_reason
I mean when I try to link it by Lab Reasons.Reason Code to From_reason, to reason, it doesn't seem to work.
The report is grouped by Lab Reasons. Reason Code, so I really have to some how create a relationship between Lab Reasons table and Rework_Group table.
This is what I get when I run the same query into Crystal using the relationship
SELECT lab_reasons.reason_code, order_progressed.date_created, order_progressed.order_no
FROM maxmast.lab_reasons lab_reasons, kevin.order_progressed order_progressed,
roger.rework_groups rework_groups
WHERE (order_progressed.order_status=rework_groups.from_gate) AND
((lab_reasons.reason_code=rework_groups.from_reason) AND
(lab_reasons.reason_code=rework_groups.to_reason)) AND (order_progressed.date_created>={ts
'2008-01-01 00:00:00'} AND order_progressed.date_created<={ts '2008-12-17 00:00:00'})
Any ideas?
Many thanks
Kind Regards
Jehanzeb

Sastry I didn't understand why did you use Lab_reasons.reason_code twice in your SQL.
What I have done since I posted this thread,
I created a command like this
Select *
from rework_groups,lab_reasons
where
lab_reasons.reason_code between from_reason and to_reason
Then I took out the lab_reasons table and rework_groups table, then I linked the order_status from Order_progressed table to From_gate of the newly created table (I called it Reason_Code).
This made the report running but it is crunching quite allot of numbers. I wonder if I made a mistake somewhere?
Oh and please note, I'd like to create an SQL (if need be) without the date entry which was done in the original SQL because I'd like to setup my own date range within Crystal Reports instead of getting passed by SQL itself.
This is how it looks like in Crystal now.
sae1_live
SELECT order_progressed.date_created, order_progressed.order_no, order_progressed.order_status
FROM kevin.order_progressed order_progressed
WHERE (order_progressed.date_created>={ts '2008-01-01 00:00:00'} AND
order_progressed.date_created<={ts '2008-12-17 00:00:00'})
EXTERNAL JOIN order_progressed.order_status={?sae1_live: Reason_Code.from_gate}
sae1_live
Select *
from rework_groups, lab_reasons
where lab_reasons.reason_code between from_reason and to_reason
EXTERNAL JOIN Reason_Code.from_gate={?sae1_live: order_progressed.order_status}
Regards
Jehanzeb

Complete novice needs help getting SQL Query into Crystal Reports XI

Post Author: MissMarnie
CA Forum: Data Connectivity and SQL
So I was given an intro level web course and a monster reference guide in prep to format a report. One of our developers wrote me everything I need for the report into a SQL Query and now I'm supposed to format it in CR XII literally do not know what to do from here. I'm able to set up the correct server as a datasource, if that's useful, but I don't know how to make the querey into a bunch of formattable fields in CR. If anyone can walk me through this, I'd be so grateful. I've attempted to look up SQL query in both the help and the book but I keep hitting a wall. The help dialog says things like "press this button" with no reference to what "this button" is. I'm sure it's obvious to the knowledgeable but I'm in a complete fog. Thanks in advance

Post Author: synapsevampire
CA Forum: Data Connectivity and SQL
IF you're trying to get assistance with setting up a query as the source for a report, try posting your Crystal version and the database type.
Different software works differently.
In CR 9 and above, under the connection to the database you'll see Add Command. Select that and you can paste the query in.
As for not knowing how to generate a report, that requires experience, there's no generic solution of course..
-k

Help! Help! Help! Why is DPV and LACS not loading into memory ?

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I tried it unchecked and it is the same speed.
How do I fix this problem?????

Tim,
Please make sure to post any "classic Firstlogic software" questions under the Business Objects Enterprise Information Management (EIM) forum and you will get a much faster response. Also you can log a case for support by going to the Help and Support tab on the SAP website, then click on Report A Product Error to log a case for support. Just make sure to choose BOJ-EIM-COM for the component when logging a case for DeskTop Mailer or Business Edition.
Steve is correct.... we are aware of the slow speed issue with address correction when using DPV and LACS in DeskTop Mailer and Business Edition 7.90. Rev 4 should be out by the end of this week. This will correct the speed issue. Please make sure to have the auto update option turned on in the software so you get this update.
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HELP! How to make RRI from BEX query into Workbook with one report???

How to make RRI from query into Workbook???

Hi Alex,
A workbook is a set format of queries, so when you try to jump to another query , you will definitely open another session and hence another excel file. This is the same for web templates also though you have an option of opening the new result in the same window.
You would have to use some macros and open the query on the same page. A RRI is a query jump and not a drill down . A drill down would be getting more of the dimensions into the query.
Regards
CSM Reddy

Process of initalization of DB into memory for timesten

Hi
Can i know the internal process of initialization of DB into memory in timesten , when a new connection is establishing ?
Will timesten create tables and indexes in RAM when first connection is established if the RAM policy is default?
want to know the internal functional flow of timesten when any command is fired against it.
Regards
Siva Kumar

TimesTen is a fully persistent database. The database contents, including tables, indexes and other objects along with the data exist both in memory (the operational database) and in the checkpoint files on disk (a persistent copy). When the database is started up (ramLoaded) the most recent checkpoint fikle is loaded into memory. There is no need to 'create' any structures etc. at this point since they are already present in the checkpoint image loaded from disk. Although it is possible to have a TimesTen database that gets loaded into memory when the first application connection occurs and gets unloaded from memory when the last application connection disconnects in general we recommend that you explicitly control when the database is ramLoaded/ramUnloaded using the 'manual' ramPolicy and the ttAdmin -ramLoad / -ramUnload commands. In this way you can avoid excessive loading and unloading of the database to/from memory.
TimesTen works similarly to other databases; when a SQL statement is prepared (parsed in Oracle database parlance) the TimesTen optimiser used the information in the data dictionary tables to generate a query plan. There is no concept of a data dictionary 'cache' since all data in TimesTen is permanently in memory. Active query plans are cached within TimesTen memory since they are transient data. When executing a query (using a plan) TimesTen accesses index and table data directly in memory. There is no 'buffer cache' since all data stored in TimesTen is permanently resident in memory. In general, for OLTP type queries, a query is parameterised, prepared just once and then executed many, many times. This is the way to achieve maximum performance with any SQL database.
As a result of these (and many other) optimisations/simplifications Timesten can achieve very high performance through simpler algorithms that require less CPU cycles to do the same work as in a more complex database.
Does that help?
Chris

Load an existing Berkeley DB file into memory

Dear Experts,
I have created some Berkeley DB (BDB) files onto disk.
I noticed that when I issue key-value retrievals, the page faults are substantial, and the CPU utilization is low.
One sample of the time command line output is as follow:
1.36user 1.45system 0:10.83elapsed 26%CPU (0avgtext+0avgdata 723504maxresident)k
108224inputs+528outputs (581major+76329minor)pagefaults 0swaps
I suspect that the bottleneck is the high frequency of file I/O.
This may be because of page faults of the BDB file, and the pages are loaded in/out of disk fairly frequently.
I wish to explore how to reduce this page fault, and hence expedite the retrieval time.
One way I have read is to load the entire BDB file into main memory.
There are some example programs on docs.oracle.com, under the heading "Writing In-Memory Berkeley DB Applications".
However, I could not get them to work.
I enclosed below my code:
--------------- start of code snippets ---------------
/* Initialize our handles */
DB *dbp = NULL;
DB_ENV *envp = NULL;
DB_MPOOLFILE *mpf = NULL;
const char *db_name = "db.id_url"; // A BDB file on disk, size 66,813,952
u_int32_t open_flags;
/* Create the environment */
db_env_create(&envp, 0);
open_flags =
DB_CREATE | /* Create the environment if it does not exist */
DB_INIT_LOCK | /* Initialize the locking subsystem */
DB_INIT_LOG | /* Initialize the logging subsystem */
DB_INIT_MPOOL | /* Initialize the memory pool (in-memory cache) */
DB_INIT_TXN |
DB_PRIVATE; /* Region files are not backed by the filesystem.
* Instead, they are backed by heap memory. */
* Specify the size of the in-memory cache.
envp->set_cachesize(envp, 0, 70 * 1024 * 1024, 1); // 70 Mbytes, more than the BDB file size of 66,813,952
* Now actually open the environment. Notice that the environment home
* directory is NULL. This is required for an in-memory only application.
envp->open(envp, NULL, open_flags, 0);
/* Open the MPOOL file in the environment. */
envp->memp_fcreate(envp, &mpf, 0);
int pagesize = 4096;
if ((ret = mpf->open(mpf, "db.id_url", 0, 0, pagesize)) != 0) {
envp->err(envp, ret, "DB_MPOOLFILE->open: ");
goto err;
int cnt, hits = 66813952/pagesize;
void *p=0;
for (cnt = 0; cnt < hits; ++cnt) {
db_pgno_t pageno = cnt;
mpf->get(mpf, &pageno, NULL, 0, &p);
fprintf(stderr,"\n\nretrieve %5d pages\n",cnt);
/* Initialize the DB handle */
db_create(&dbp, envp, 0);
* Set the database open flags. Autocommit is used because we are
* transactional.
open_flags = DB_CREATE | DB_AUTO_COMMIT;
dbp->open(dbp, // Pointer to the database
NULL, // Txn pointer
NULL, // File name -- NULL for inmemory
db_name, // Logical db name
DB_BTREE, // Database type (using btree)
open_flags, // Open flags
0); // File mode. defaults is 0
DBT key,data; int test_key=103456;
memset(&key, 0, sizeof(key));
memset(&data, 0, sizeof(data));
key.data = (int*)&test_key;
key.size = sizeof(test_key);
dbp->get(dbp, NULL, &key, &data, 0);
printf("%d --> %s ", *((int*)key.data),(char*)data.data );
/* Close our database handle, if it was opened. */
if (dbp != NULL) {
dbp->close(dbp, 0);
if (mpf != NULL) (void)mpf->close(mpf, 0);
/* Close our environment, if it was opened. */
if (envp != NULL) {
envp->close(envp, 0);
/* Final status message and return. */
printf("I'm all done.\n");
--------------- end of code snippets ---------------
After compilation, the code output is:
retrieve 16312 pages
103456 --> (null) I'm all done.
However, the test_key input did not get the correct value retrieval.
I have been reading and trying this for the past 3 days.
I will appreciate any help/tips.
Thank you for your kind attention.
WAN
Singapore

Hi Mike
Thank you for your 3 steps:
-- create the database
-- load the database
-- run you retrievals
Recall that my original intention is to load in an existing BDB file (70Mbytes) completely into memory.
So following your 3 steps above, this is what I did:
Step-1 (create the database)
I have followed the oracle article on http://docs.oracle.com/cd/E17076_02/html/articles/inmemory/C/index.html
In this step, I have created the environment, set the cachesize to be bigger than the BDB file.
However, I have some problem with the code that opens the DB handle.
The code on the oracle page is as follow:
* Open the database. Note that the file name is NULL.
* This forces the database to be stored in the cache only.
* Also note that the database has a name, even though its
* file name is NULL.
ret = dbp->open(dbp, /* Pointer to the database */
NULL, /* Txn pointer */
NULL, /* File name is not specified on purpose */
db_name, /* Logical db name. */
DB_BTREE, /* Database type (using btree) */
db_flags, /* Open flags */
0); /* File mode. Using defaults */
Note that the open(..) API does not include the BDB file name.
The documentation says that this is so that the API will know that it needs an in-memory database.
However, how do I tell the API the source of the existing BDB file from which I wish to load entirely into memory ?
Do I need to create another DB handle (non-in-memory, with a file name as argument) that reads from this BDB file, and then call DB->put(.) that inserts the records into the in-memory DB ?
Step-2 (load the database)
My question in this step-2 is the same as my last question in step-1, on how do I tell the API to load in my existing BDB file into memory?
That is, should I create another DB handle (non-in-memory) that reads from the existing BDB file, use a cursor to read in EVERY key-value pair, and then insert into the in-memory DB?
Am I correct to say that by using the cursor to read in EVERY key-value pair, I am effectively warming the file cache, so that the BDB retrieval performance can be maximized ?
Step-3 (run your retrievals)
Are the retrieval API, e.g. c_get(..), get(..), for the in-memory DB, the same as the file-based DB ?
Thank you and always appreciative for your tips.
WAN
Singapore

How to insert a query into a NEW workbook ?

Hi Friends,
Could some one tell me how to insert a query into a new workbook? i am trying to run query in NW2004S BEx Query Designer, which always open the query on web when executed. i want to run the query in NW2004S BEx Query Designer and want it to open the result in Excell.
If i am not wrong then to do the same, i need to embed the query into workbook. Correct me if i am wrong. If i am right then plzz tell me the steps to insert the query into workbook.
Ur help will be rewarded in terms of points.
Thanks,

Hello,
If you open the BEx Query Designer from the desktop, you cannot execute the query directly to the BEx Analyzer for an Excel view. You can only execute it directly to the Web. This is true for the SAP BW 3.x version as well as the SAP NetWeaver 2004s version.
If you open the BEx Query Designer from within BEx Analyzer, once you select (or create) your query, you will have a green check mark icon that will then allow you to deploy the query directly to the BEx Analyzer for the Excel view.
However, this would only make sense if you are creating or modifying the query. If not, you would simply open BEx Analyzer and use the Open Query option in this tool to see your query in an Excel format, as has been previously suggested by the other respondents to this posting.
Regards,
Katie Beavers
SAP NetWeaver Product Management

Reading Lots of Objects into Memory

I need to read thousands of fairly large objects from an object database to the point that the JMV memory runs out.
A solution is to: read, use and discard as opposed to loading all the objects into memory at once -pretty simple but I want to do it right. I have a general idea on how to implement the approach but I need your help in locating some reading materials, code snipplets and/or best practices.
Thanks!

If you're using thousands of objects you might look into the Flyweight Pattern (depending on what these objects are and what state they have). You might also look into increasing the amount of memory available to the JVM via that -Xms switch.
Aside from that, if you reuse the same reference name (variable name)(s) you'll allow the Garbage Collector to recover that memory.
Good Luck
Lee

Reading entire txt file into memory?

When you are using BufferedReader to read info into a buffer, that means you are reading the file into memory, correct? (Is that what buffer means?)
I want to look for pattern matches in text files (about 1000 of them) using the regex utils. But I don't want to read and examine the text files line by line. I want to read in the entire text file into memory first and then look for the pattern matches. The text files generally don't exceed about 15K in size. I'm only going one file at a time, too, so this won't give me any out of memory errors, will it?
And more importantly, how do I do it? I mean the "reading in the file" part only. I have my RegEx, I have my array of files to examine already. I just can't figure out the right code to use to read each file into memory before I look for pattern matches.
Could someone help, please?

When you are using BufferedReader to read info into a
buffer, that means you are reading the file into
memory, correct? (Is that what buffer means?)Yes.
I want to look for pattern matches in text files
(about 1000 of them) using the regex utils. But I
don't want to read and examine the text files line by
line.Why not?
I want to read in the entire text file into
memory first and then look for the pattern matches.Why?
The text files generally don't exceed about 15K in
size. I'm only going one file at a time, too, so
this won't give me any out of memory errors, will
it?Depends on how much memory you've given the VM and how much of that it's using already at the time you read the files, but in general, probably not a problem.
And more importantly, how do I do it? I mean the
"reading in the file" part only.Use BufferedReader to read line by line and then append each line (plus a newline, since BR.readLine() strips those off) to a StringBuilder.
Or use a BufferedInputStream and and array that's as big as the file, and in a loop, try to read as much as is left into that array at an offset equal to how much has been read so far.
I still think this is probably not a good approach though.

Reading a text data file into memory

hi,
I have a text file which contains data, The text file is parsed and objects are created. The problem is the text file is quite huge measuring upto 1.8~2 Mb. The format of the text file is as follows
Units: METRIC (atm, m3)
* Step: 1 Time: 0.00
* Average Field Pressure : 204.14
* Region 1 Pressure : 204.14
Well GROUP Layer Blk_Pressure BHP ResRate OilRate WaterRate GasRate KhProd Windex PindeWELLTYPE
1 FIELD 1 204.14 49.33 6601.22 6568.10 37.14 538.07 99999.00 260.35 99999.00 P
1 FIELD 2 204.14 50.34 6558.13 6525.23 36.90 534.56 99999.00 260.35 99999.00 P
1 FIELD 3 204.14 51.35 6515.04 6482.36 36.65 531.04 99999.00 260.35 99999.00 P
1 FIELD Tot 204.14 50.34 19674.40 19575.69 110.69 1603.67 99999.00 99999.00 99999.00 P
2 FIELD 1 204.14 377.66 7573.96 0.00 7403.68 0.00 99999.00 260.35 99999.00 I
2 FIELD 2 204.14 378.40 7606.33 0.00 7435.32 0.00 99999.00 260.35 99999.00 I
2 FIELD 3 204.14 379.14 7638.70 0.00 7466.96 0.00 99999.00 260.35 99999.00 I
2 FIELD Tot 204.14 378.40 22818.99 0.00 22305.95 0.00 99999.00 99999.00 99999.00 I
* Step: 2 Time: 20.23
* Average Field Pressure : 300.11
* Region 1 Pressure : 300.11
Well GROUP Layer Blk_Pressure BHP ResRate OilRate WaterRate GasRate KhProd Windex PindeWELLTYPE
1 FIELD 1 194.20 49.33 858.83 853.40 5.36 68.22 99999.00 260.35 99999.00 P
1 FIELD 2 194.48 50.34 871.71 866.22 5.42 69.35 99999.00 260.35 99999.00 P
1 FIELD 3 194.76 51.35 884.86 879.29 5.48 70.49 99999.00 260.35 99999.00 P
1 FIELD Tot 194.48 50.34 2615.40 2598.91 16.26 208.06 99999.00 99999.00 99999.00 P
2 FIELD 1 370.40 377.66 912.25 0.00 891.74 0.00 99999.00 260.35 99999.00 I
2 FIELD 2 371.26 378.40 895.75 0.00 875.61 0.00 99999.00 260.35 99999.00 I
2 FIELD 3 372.12 379.14 879.29 0.00 859.52 0.00 99999.00 260.35 99999.00 I
2 FIELD Tot 371.26 378.40 2687.28 0.00 2626.86 0.00 99999.00 99999.00 99999.00 I
The Step goes on till like 3000, I am creating an object for each step which inturn has nested object for each well and the well in turn for each layer. In the above case of step 3 the object would be
class Step 2{
inner class well
{ //for well 1
inner class layer { // for layer 1 }
inner class layer {/ for layer 2 }
inner class layer {/ for layer 3 }
inner class well
{ //for well 2
inner class layer { // for layer 1 }
inner class layer {/ for layer 2 }
inner class layer {/ for layer 3 }
This architecture of mine is proving to be heavy as I would end up with around 9000 Java objects in memory, though my classes only have have int, float, String data items. I am using this data to plot graphs, so I guess it wouldnt be optimal to read data from text file for each plot.
So in short the problem is can anyone tell a better way to read the data into memory ? given that there could be 3000 steps in the format given above.
Thanks
AM

I have implemented and it takes around 30-45 sec to parse and also the GUI has become very slow. I query the objects for multiple combinations of graphs.
The data from the objects is being used to feed the graphs on my GUI. I have a number of options on my GUI for different kinds of graphs, for each combination chosen the Objects are queried for the data. The GUI is written using Swing.
So is there anyway I can fine tune the application, any tips about the object architecture or how to improve the speed. I am also explicitly running the garbage collector a few times in my program. Also how can I make JVM occupy lesser memory so that my program can have more memory.
Thanks
am

Missing/empty symbols, "Could not load scene into memory. Your document may be damaged." CS6

Hey folks,
we've been getting this problem a lot. We had it in Flash CS5.5 and still have it CS6.
We're animating a series in Flash and this problem keeps cropping up way to often, but seems totally random.
Basically I'll be working on a .fla saving regular versions through out the day, no problems. I'll close the file down. Then I (or someone else on a different computer) will open it up and I'll get the error msg "Could not load scene into memory. Your document may be damaged." Everything will be fine except for a few missing graphic symbols. Sometimes just the one, sometimes a whole bunch. So where the symbol should be on the stage, instead you get a small white square, but it still contains the animation information. So it will still move about the stage. If I bring in the same symbol from an old scene I can swap them out and the problem is fixed, (until it does it again on a totally different graphic symbol).
If i select the symbol in the library the preview is white/blank and i can't go into it to edit. When I select the symbol on the stage, the "instance of:" gives me a blank "_ _ _" in the properties tab. How ever if i right click show in library it does show me the correct (although broken as in blank) symbol in the library.
I havent been able to reproduce this problem on purpose but I'd say it happens in roughly one scene out of 10. Its seems to happen at random, I know there must be something in common but i havent figured out what. Its going on in heavy scenes (large library multipule characters), lite scenes (just the one character). Its not like it happens to the same symbol, different ones each time. Everything is local to the scene, all elements are created in flash. We are working across a network but as everything is local to the scene i don't see how that would be a problem. Also we don't have duplicate named symbols. It also won't necessarily affect something that has been changed since the last version. could be a background element thats been there, untouched since the first version of the scene.
One point on how we set up our scenes which may be relevant. Start with empty scene, copy and paste symbols from other scenes to populate. Save.
The problem could appear on say version 4 or version 36. Older versions are usually fine.
So to sum up. Flash file is fine when we save it, open it up again later and a symbol will have disappeared. It's happening far too often.
I know how to fix the problem, thats not what I'm asking. I need to know WHY its doing it so we can stop this from happening in the first place.
Phew! Thanks for reading this far. Any help would be highly appreciated.
Sander/

Can you elaborate on how you use the network? Are you working from FLA/XFLs stored on a machine across a network (and saving them across the network)? I had plenty of those issues and Adobe has always warned not to work across a network. I just fell into the habit of copying over what I need to work on locally, then updating the file servers at the end of the day. Nothing was corrupt after that.
Also lately in CS5.5 (not CS6 yet) I had noticed that I could change some graphics assets, close the document in OS X and open in Windows only to find freshly updated graphics reverted back. What's even more odd is if the OS X machine that made the changes opens it the changes are still made. This happens vice versa as well. My only solution on that was not to work cross-platform with other machines on a network unless absolutely necessary.

How do I get this query into Discoverer Plus

Hi all,
I have the following query:
SELECT h.hrs, NVL(Quantity, 0) Quantity
FROM (SELECT TRIM(to_char(LEVEL - 1, '00')) hrs
FROM dual
CONNECT BY LEVEL < 25) h
LEFT JOIN (SELECT TO_CHAR(event_date, 'HH24') AS during_hour,
COUNT(*) Quantity
FROM user_activity u
WHERE event_date BETWEEN
to_date('15-JUN-2010 14:00:00', 'DD-MON-YYYY HH24:MI:SS') AND
to_date('16-JUN-2010 13:59:59', 'DD-MON-YYYY HH24:MI:SS')
AND event = 'user.login'
GROUP BY TO_CHAR(event_date, 'HH24')) t
ON (h.hrs = t.during_hour)
ORDER BY h.hrs;
Which produces the number of actions performed (from an event table, user_activity) grouped by the hour of the day they occurred (including displaying hours that have zero records - this bit is important!). I want to be able to put this into Discoverer plus as a worksheet, but I'm having trouble trying to figure out how.
I was able to create a custom folder in Administrator for the select from DUAL, but I cannot link it to the user_activity table because there's no relationship between to two tables to create a join.
The user_activity table is:
USER_ID - VARCHAR2(8 CHAR)
EVENT_DATE - DATE
EVENT - VARCHAR2(100 CHAR)
The custom folder is this part of the SQL:
SELECT TRIM(to_char(LEVEL - 1, '00')) hrs FROM dual CONNECT BY LEVEL < 25
Any suggestions would be greatly appreciated.
Thanks.
Edited by: Cyntech on Aug 12, 2010 10:41 AM

KK wrote:
hi,
In the custom folder we can join tables,but the thing is you said ther is no join between them.
I would suggest you to built this query into a view and use this view in the DUAL table by writing inline query or subquery what ever way.
This is the only possibility i can think off.
Hope it helps you.
By,
KKHi,
Thanks for the reply, though I'm not sure that I understand what you are suggesting.
Which query would you turn into a view? If you are referring to the select from dual, then how would the view be any different from the custom folder? You still would not be able to join it to user_activity as there are no common columns.
Edited by: Cyntech on Aug 12, 2010 2:49 PM

How to convert an sql query into a recordset?

HI, I'm having a hard time building a locations of service form for users to insert, update the cities, counties, zip codes based on the states selected.
so I found this query that works great if I use basic menus and text boxes, but can't use to make comma separated menus because it is nat a record set.
The problem is that I have a table called zip_codes, with the following fields: state_label, Zip_b, county, city.
zip codes correspond to the cities, counties and states.
example:
Colorado, Colorado Springs, El Paso, 80918
Users make a selection of state or states and the recordset is filtered by user selection.
I manage the part of making a select mutiple drop menu that passes the values to my query page like this.
<form action="litsTA.php"; method="post">
<h3>Choose State(s)</h3>
<p>hold Control key to select multiple states</p>
<select name="States_served[]_<?php echo $cnt1; ?>" multiple="multiple" onchange='showselection()'>
<?php
do {
?>
<option value="<?php echo $row_state['state_label']?>"><?php echo $row_state['state_label']?></option>
<?php
} while ($row_state = mysql_fetch_assoc($state));
$rows = mysql_num_rows($state);
if($rows > 0) {
mysql_data_seek($state, 0);
$row_state = mysql_fetch_assoc($state);
?>
</select>
<p>
<input type="submit" value="submit" />
</p>
</form>
And the query I need to convert into a recordset looks like this
mysql_select_db($database_duitop, $duitop);
$query_TONY = "SELECT * FROM zip_code WHERE state_label IN (";
for ($i=0; $i<=count($state_list)-1; $i++) {
//echo $state_list[$i];
$query_TONY = $query_TONY . "'" . $state_list[$i] . "'";
if ($i < count($state_list)-1) {
$query_TONY = $query_TONY . ", ";
$query_TONY = $query_TONY . ") GROUP BY county ORDER BY state_label, city ASC";
Any way that was my attempt to converting the query into a recordset.
any help, or samples will be appreciated.

Use Tcode SQ01.
Give the query name press Enter.
The query will be listed in the table below.
Select the Query => From the Main menu select QUERY => More Functions => Display Report Name.
You will get the program name, now go to Se38 and display the program...

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