Possible result cache problem 11GR1;;Plz Help me :)
Hello,
I just finished installing Oracle 11g Enterprise Edition on my laptop,under windows XP 32 Bit,
Just run to test the result cache ,It seems the result cache does not work for me ;
Please see the demonstration below and help me to undertsand:
(I am the only person connected to the database and I only have one session conneted )
Connected to Oracle Database 11g Enterprise Edition Release 11.1.0.6.0
Connected as SYS
SQL> set timi on
SQL> select * from v$version;
BANNER
Oracle Database 11g Enterprise Edition Release 11.1.0.6.0 - Production
PL/SQL Release 11.1.0.6.0 - Production
CORE 11.1.0.6.0 Production
TNS for 32-bit Windows: Version 11.1.0.6.0 - Production
NLSRTL Version 11.1.0.6.0 - Production
Executed in 0.031 seconds
SQL> ----result cache demonstration
SQL> ----clear the server result cache
SQL> exec dbms_result_cache.Flush
PL/SQL procedure successfully completed
Executed in 0 seconds
SQL> ---run a query to load the server result cache
SQL>
SQL> SELECT /*+ result_cache */
2 H.DEPARTMENT_ID, H.DEPARTMENT_NAME, H.MANAGER_ID, COUNT(*)
3 FROM HR.DEPARTMENTS H
4 GROUP BY H.DEPARTMENT_ID, H.DEPARTMENT_NAME, H.MANAGER_ID
5 ;
DEPARTMENT_ID DEPARTMENT_NAME MANAGER_ID COUNT(*)
10 Administration 200 1
30 Purchasing 114 1
50 Shipping 121 1
60 IT 103 1
70 Public Relations 204 1
200 Operations 1
210 IT Support 1
230 IT Helpdesk 1
90 Executive 100 1
100 Finance 108 1
140 Control And Credit 1
150 Shareholder Services 1
160 Benefits 1
220 NOC 1
250 Retail Sales 1
130 Corporate Tax 1
110 Accounting 205 1
270 Payroll 1
40 Human Resources 203 1
170 Manufacturing 1
DEPARTMENT_ID DEPARTMENT_NAME MANAGER_ID COUNT(*)
260 Recruiting 1
20 Marketing 201 1
120 Treasury 1
80 Sales 145 1
180 Construction 1
190 Contracting 1
240 Government Sales 1
27 rows selected
Executed in 0.282 seconds
SQL> --*-response time is 0.282 seconds*
SQL> ---Show the result information from v$result_cache_objects : is the result cache is valid ?
SQL> --- The space used also?
SQL>
SQL> SELECT ID,
2 NAME,
3 TYPE,
4 STATUS,
5 BLOCK_COUNT,
6 ROW_COUNT * ROW_SIZE_AVG AS SPACE_FOR_ROWS,
7 SPACE_OVERHEAD
8 FROM V$RESULT_CACHE_OBJECTS V
9 ;
ID NAME TYPE STATUS BLOCK_COUNT SPACE_FOR_ROWS SPACE_OVERHEAD
0 HR.DEPARTMENTS Dependency Published 1 0 0
1 SELECT /*+ result_cache */ Result Published 1 675 320
H.DEPARTMENT_ID, H.DEPARTMENT_NAME, H.MANAGER_ID, COUNT(*)
FROM HR.DEPARTMENTS H
GROUP BY H.DEPAR
Executed in 0.141 seconds
SQL> ---we run again our query
SQL>
SQL> SELECT /*+ result_cache */
2 H.DEPARTMENT_ID, H.DEPARTMENT_NAME, H.MANAGER_ID, COUNT(*)
3 FROM HR.DEPARTMENTS H
4 GROUP BY H.DEPARTMENT_ID, H.DEPARTMENT_NAME, H.MANAGER_ID
5 ;
DEPARTMENT_ID DEPARTMENT_NAME MANAGER_ID COUNT(*)
10 Administration 200 1
30 Purchasing 114 1
50 Shipping 121 1
60 IT 103 1
70 Public Relations 204 1
200 Operations 1
210 IT Support 1
230 IT Helpdesk 1
90 Executive 100 1
100 Finance 108 1
140 Control And Credit 1
150 Shareholder Services 1
160 Benefits 1
220 NOC 1
250 Retail Sales 1
130 Corporate Tax 1
110 Accounting 205 1
270 Payroll 1
40 Human Resources 203 1
170 Manufacturing 1
DEPARTMENT_ID DEPARTMENT_NAME MANAGER_ID COUNT(*)
260 Recruiting 1
20 Marketing 201 1
120 Treasury 1
80 Sales 145 1
180 Construction 1
190 Contracting 1
240 Government Sales 1
27 rows selected
*Executed in 0.297 seconds*
SQL> Why the first is faster than the second?
thanks a lot,
Edited by: Ora-Wiss on Apr 3, 2010 2:17 PM
I have been using 11g from quite some time now in my sessions and already have started sessions over 11gr2 as well and I can't recall that I ever faced this thing. And I just did show the same to you on my personal system as well. But nevermind, here is one more run with the database being restarted and the same code being run.
SQL> select * from v$version;
BANNER
Oracle Database 11g Enterprise Edition Release 11.1.0.6.0 - Production
PL/SQL Release 11.1.0.6.0 - Production
CORE 11.1.0.6.0 Production
TNS for 32-bit Windows: Version 11.1.0.6.0 - Production
NLSRTL Version 11.1.0.6.0 - Production
Elapsed: 00:00:00.00
SQL> startup force
ORACLE instance started.
Total System Global Area 171573248 bytes
Fixed Size 1331936 bytes
Variable Size 125832480 bytes
Database Buffers 37748736 bytes
Redo Buffers 6660096 bytes
Database mounted.
Database opened.
SQL> exec dbms_result_cache.Flush;
PL/SQL procedure successfully completed.
Elapsed: 00:00:00.06
SQL> SELECT /*+ result_cache */ H.DEPARTMENT_ID, H.DEPARTMENT_NAME, H.MANAGER_ID, COUNT(*) FROM HR.DEPARTMENTS H GROUP BY H.DEP
ARTMENT_ID, H.DEPARTMENT_NAME, H.MANAGER_ID;
DEPARTMENT_ID DEPARTMENT_NAME MANAGER_ID COUNT(*)
10 Administration 200 1
30 Purchasing 114 1
50 Shipping 121 1
60 IT 103 1
70 Public Relations 204 1
200 Operations 1
210 IT Support 1
230 IT Helpdesk 1
90 Executive 100 1
100 Finance 108 1
140 Control And Credit 1
DEPARTMENT_ID DEPARTMENT_NAME MANAGER_ID COUNT(*)
150 Shareholder Services 1
160 Benefits 1
220 NOC 1
250 Retail Sales 1
130 Corporate Tax 1
110 Accounting 205 1
270 Payroll 1
40 Human Resources 203 1
170 Manufacturing 1
260 Recruiting 1
20 Marketing 201 1
DEPARTMENT_ID DEPARTMENT_NAME MANAGER_ID COUNT(*)
120 Treasury 1
80 Sales 145 1
180 Construction 1
190 Contracting 1
240 Government Sales 1
27 rows selected.
Elapsed: 00:00:00.15
SQL> SELECT /*+ result_cache */ H.DEPARTMENT_ID, H.DEPARTMENT_NAME, H.MANAGER_ID, COUNT(*) FROM HR.DEPARTMENTS H GROUP BY H.DEP
ARTMENT_ID, H.DEPARTMENT_NAME, H.MANAGER_ID;
DEPARTMENT_ID DEPARTMENT_NAME MANAGER_ID COUNT(*)
10 Administration 200 1
30 Purchasing 114 1
50 Shipping 121 1
60 IT 103 1
70 Public Relations 204 1
200 Operations 1
210 IT Support 1
230 IT Helpdesk 1
90 Executive 100 1
100 Finance 108 1
140 Control And Credit 1
DEPARTMENT_ID DEPARTMENT_NAME MANAGER_ID COUNT(*)
150 Shareholder Services 1
160 Benefits 1
220 NOC 1
250 Retail Sales 1
130 Corporate Tax 1
110 Accounting 205 1
270 Payroll 1
40 Human Resources 203 1
170 Manufacturing 1
260 Recruiting 1
20 Marketing 201 1
DEPARTMENT_ID DEPARTMENT_NAME MANAGER_ID COUNT(*)
120 Treasury 1
80 Sales 145 1
180 Construction 1
190 Contracting 1
240 Government Sales 1
27 rows selected.
Elapsed: 00:00:00.01
SQL>As you can see, I can't reproduce.
HTH
Aman....
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If a sad iPod icon or an exclamation point and folder icon appears on your iPod’s screen, or with sounds of clicking or HD whirring, it is usually the sign of a hard drive problem and you have the power to do something about it now. Your silver bullet of resolving your iPod issue – is to restore your iPod to factory settings.
http://docs.info.apple.com/article.html?artnum=60983
If you're having trouble, try these steps at different levels one at a time until the issue is resolved. These steps will often whip your iPod back into shape.
Make sure you do all the following “TRYs”
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C. Try another FireWire or USB port on your computer .
D. Try to disconnect all devices from your computer's FireWire and USB ports.
E. Try to download and install the latest version of iPod software and iTunes
http://www.apple.com/itunes/download/
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http://www.ipodwizard.net/showthread.php?t=7369
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http://www.apple.com/support/ipod/five_rs/
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http://docs.info.apple.com/article.html?artnum=93651
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Intermediate Level
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You are prepared to buy a new one
You can’t accept the re-sell value of your broken iPod
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Last Resort Level
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http://discussions.apple.com/thread.jspa?messageID=2438774#2438774
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Exclamation point and folder and nothing else
http://discussions.apple.com/thread.jspa?messageID=2831962#2831962
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Sad Face on iPod for no apparent reason
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Sad faced iPod, but my computer won’t recognize it
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Sad iPod solution
http://discussions.apple.com/thread.jspa?threadID=412033&tstart=0
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http://discussions.apple.com/thread.jspa?threadID=443659&tstart=30
iPod making clicking noise and is frozen
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I am not suggesting that you should follow as well, but just read them as your reference. You are the person to make the call.
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<td><a href="select_date.jsp" >${queryResult.name}</a></td>
<c:if test="${status.index % 2==1)"></tr></c:if>
</c:forEach> -
hi
i have made a simple servlet..compile it and put the .class file into web INF's classes folder..set the classpath to servlet. jar file ..the servlets java code is in root folder..i had also put jar file into web inf's lib folder..all the enviroment variables are setted ok.. but still when i am running it, it gives error 404..the url ,i am using for browser is ..http://localhost:8080/servlet/HelloServlet..
please help me to resolve this problem.
thanx
gyanweb xml file is..
<?xml version="1.0" encoding="ISO-8859-1" ?>
- <!-- Copyright 2004 The Apache Software Foundation
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
- <web-app xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd" version="2.4">
<display-name>Welcome to Tomcat</display-name>
<description>Welcome to Tomcat</description>
- <!-- JSPC servlet mappings start
-->
- <servlet>
<servlet-name>org.apache.jsp.index_jsp</servlet-name>
<servlet-class>org.apache.jsp.index_jsp</servlet-class>
</servlet>
- <servlet-mapping>
<servlet-name>org.apache.jsp.index_jsp</servlet-name>
<url-pattern>/index.jsp</url-pattern>
</servlet-mapping>
- <!-- JSPC servlet mappings end
-->
</web-app> -
K7N2G Sound problem! PLZ HELP!
hi!
While i am watching moviesor playing games on my PC,after like 10 minutes the sound disappears.
i am using the integrated sound device with the newest update and WIndows XP. WHat the problem can be.
please help!try using th realtek drivers..........here is link to a post that may hlep you
http://www.msi.com.tw/program/service/forum/index.php?threadid=14649&boardid=14&styleid=1
let me know if it helps......GL -
Strange problem. PLZ help!! Servlet+Excel
Hello,
I have a problem downloading excel files, I generate a excel file in the server using jakarta, i download the file and when i open it, it tells me that "File error: file may have been lost", but i can open it .
My code:
res.setContentType("application/vnd.ms-excel");
res.addHeader("Content-Disposition",
"attachment;filename="+fileName+".xls");
ServletOutputStream out = res.getOutputStream();
HSSFWorkbook wb = new HSSFWorkbook();
HSSFSheet sheet = wb.createSheet("sheet1");
HSSFRow headerRow = sheet.createRow((short) 0);
sheet.addMergedRegion(new Region(0, (short) 0, 2,
(short) 10));
HSSFCell headerCell =
headerRow.createCell((short) 0);
//add the date to the header cell
headerCell.setCellValue("The Bowling Score");
wb.write(out);
out.flush();
res.flushBuffer();
Anyone can help me?
ThanksI had a similar porblem....
I got some help from...http://www.javaworld.com/javaworld/jw-10-2006/jw-1019-xmlexcel.html?page=1...
This is my code in servlet...
HSSFWorkbook wb = new HSSFWorkbook();
HSSFSheet spreadSheet = wb.createSheet("Users");
spreadSheet.setColumnWidth((short) 0, (short) (256 * 25));
spreadSheet.setColumnWidth((short) 1, (short) (256 * 25));
// Creating Rows
HSSFRow row = spreadSheet.createRow(0);
HSSFCell cell = row.createCell((short) 1);
cell.setCellValue("Year 2005");
cell = row.createCell((short) 2);
cell.setCellValue("Year 2004");
HSSFRow row1 = spreadSheet.createRow(1);
HSSFCellStyle cellStyle = wb.createCellStyle();
cellStyle.setBorderRight(HSSFCellStyle.BORDER_MEDIUM);
cellStyle.setBorderTop(HSSFCellStyle.BORDER_MEDIUM);
cellStyle.setBorderLeft(HSSFCellStyle.BORDER_MEDIUM);
cellStyle.setBorderBottom(HSSFCellStyle.BORDER_MEDIUM);
cell = row1.createCell((short) 0);
cell.setCellValue("Revenue ($)");
cell = row1.createCell((short) 1);
cell.setCellValue("25656");
cell = row1.createCell((short) 2);
cell.setCellValue("15457");
FileOutputStream output = new FileOutputStream(new File("/tmp/Users.xls"));
response.setContentType("application/vnd.ms-excel");
response.setHeader("Content-Disposition", "attachment;filename=Users.xls");
ServletOutputStream out = response.getOutputStream();
wb.write(output);
output.flush();
output.close();
forward = null;
In firefox i get the download dialog box but not able to open in from there,i need to save it and then open. In IE i dont get the dialog box instead the excell open inside the browser......Please help me to open a excel sheet onclick on a link "Export to excel" in jsp......
Thanks in advance... -
JTree Selection problem. Plz help...
Hi All,
I hv designed a JTree with DefaultMutableTreeNode. And i hv added TreeSelectionListener to it. When i select the nodes of the tree i hv to display the RootNode name of the tree in a label. I'm able to achieve it using
DefaultMutableTreeNode node =(DefaultMutableTreeNode) mBalanceInfoTree.getLastSelectedPathComponent();
TextField.setText(node.getParent());
the problem is when i click on the RootNode it is displaying as "RootNode" but not the node name.
Can anyone help me on this.
Thanks in advance
ssHi Frank,
Atlast i made it to work.
TreePath tp = mBalanceInfoTree.getSelectionPath();
StringTokenizer st = new StringTokenizer(tp.toString(), ",");
String bal_Grp[] = new String[st.countTokens()];
int count = 0;
while (st.hasMoreElements()) {
bal_Grp[count] = st.nextToken();
count++;
Thanks for your replies..
N correct me if there is any wrong in this approach.
Cheers
SS -
Calendar problems.. plz help!!!
Hi, I have some questions about the blackberry calendar. We have different calendar groups sorted according to our email ids registered to the bb; I wanted to know if you can shift multiple or all entries from one group to another. 2nd question, is it possible to change multiple reminders in the calendar? For e.g. all my calendar entries reminders are set to 84 hours earlier is it possible to change all the reminders at once? And last question, is it possible to add a calendar group to the calendar. as in create our own cical in the service book?
Hello, please see my post entitled "Is it this simple?" This worked for me today. If this helps, please post back to my post. Thanks.
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