Why should avoid OLTP compression on tables with massive update/insert?
Dear expert,
We are planning oracle OLTP compression on a IS-U system, could you tell me
Why should avoid OLTP compression on tables with massive update/insert?
What kind of impact on the performance in the worst case?
Best regards,
Kate
Hi
When updating compressed data Oracle has to read it, uncompress it and update it.
The compression is then performed again later asynchronously. This does require a lot more CPU than for a simple update.
An other drawback is that compression on highly modified tables will generate a major increase in redo / undo log generation. I've experienced it on an DB where RFC tables where by mistake compressed, the redo increase was over 15%.
Check the remark at the end of Jonathan Lewis post.
Regards
http://allthingsoracle.com/compression-in-oracle-part-3-oltp-compression/
Possibly this is all part of the trade-off that helps to explain why Oracle doesn't end up compressing the last few rows that get inserted into the block.
The effect can be investigated fairly easily by inserting about 250 rows into the empty table - we see Oracle inserting 90 rows, then generating a lot of undo and redo as it compresses those 90 rows; then we insert another 40 rows, then generate a lot of undo and redo compressing the 130 rows. Ultimately, by the time the block is full we have processed the first 90 rows into the undo and redo four or five times.
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Af: table with dialog while insert
hi experts,
am using jdev 11.1.1.5.0
my usecase,
i want to show a datacontrol as af:table.
so i drag drop as table.
here give luk.
<af:table> appear like this
top of the table tool bar --- these are available. Insertbutton Commitbutton Deletebutton
column1 || column 2 column n
data1 || data2 Entry Complete command button - Each row has this button.
data3 || data4 Entry Complete command button - Each row has this button.
<af:table>i want to do. like this.
if i click insert button means one dialog wants to open in that dialog i want enter the all those details of table and save all those deatils in that area.
and save datas is to be display be in af: table which is exist. (as shown above).
important thing:
usually if i click insert button it provide a empty row for the user in my af:table. //this also restricted and i dont want like this.
usually if give a cursor to any of the column in af:table make some edit operation //and this also restricted and i dont want like this.
instead of this.
i want like this as i said ealier.
if i click insert button means one dialog wants to open in that dialog i want enter the all those details of table and save all those details in that area.
another thing:
as i said earlier top table hold af:table delete operation presents.
if i press delete button row level data in af:table should be deleted.
simple ,
insertion of af:table should be handled in af:dialog.
deletion of af:table should be handled in usual.
i hope u all understud.thankz for instant reply,
insert operation not performs . here something i wnet wrong pls correct me,
here want i did means.
step : i drag drop the datacontrol gllvlaccounts1 as af: table and drag drop insert and delete operation as revalent to that
step2: insert operation code is registered in bean.
step3: while insert operation for show the dialog. for this reason. i use popupbehavoiur n popup n af:dialog.
step4: in that dialog i drag n gllvlaccounts1 as af:panelformlayout in there is place commit operation.
step5: while running jspx page af:table appears, i select a row press insert operation. the dialog appears
with that row data. i can get empty form for insertion.
this my code while clicking insertion operation.
<af:commandButton text="Insert"
disabled="#{!bindings.CreateInsert6.enabled}"
binding="#{pageFlowScope.managedbean_GeneralLedger.cb22}"
id="cb22"
action="#{pageFlowScope.managedbean_GeneralLedger.cb22_action2}" >
<af:showPopupBehavior popupId="p2"/>
</af:commandButton>
<af:popup binding="#{pageFlowScope.managedbean_GeneralLedger.p2}"
id="p2">
<af:dialog binding="#{pageFlowScope.managedbean_GeneralLedger.d3}"
id="d3" type="cancel">
<af:panelFormLayout binding="#{pageFlowScope.managedbean_GeneralLedger.pfl1}"
id="pfl1">
<af:inputListOfValues id="inputListOfValues1"
popupTitle="Search and Select: #{bindings.GlalPlant.hints.label}"
value="#{bindings.GlalPlant.inputValue}"
label="#{bindings.GlalPlant.hints.label}"
model="#{bindings.GlalPlant.listOfValuesModel}"
required="#{bindings.GlalPlant.hints.mandatory}"
columns="#{bindings.GlalPlant.hints.displayWidth}"
shortDesc="#{bindings.GlalPlant.hints.tooltip}"
binding="#{pageFlowScope.managedbean_GeneralLedger.inputListOfValues1}">
<f:validator binding="#{bindings.GlalPlant.validator}"/>
</af:inputListOfValues>
<af:inputText value="#{bindings.GlalPlantDesc.inputValue}"
label="#{bindings.GlalPlantDesc.hints.label}"
required="#{bindings.GlalPlantDesc.hints.mandatory}"
columns="#{bindings.GlalPlantDesc.hints.displayWidth}"
maximumLength="#{bindings.GlalPlantDesc.hints.precision}"
shortDesc="#{bindings.GlalPlantDesc.hints.tooltip}"
partialTriggers="glalPlantId"
binding="#{pageFlowScope.managedbean_GeneralLedger.it38}"
id="it38">
<f:validator binding="#{bindings.GlalPlantDesc.validator}"/>
</af:inputText>
<af:inputListOfValues id="inputListOfValues2"
popupTitle="Search and Select: #{bindings.GlalLvl1.hints.label}"
value="#{bindings.GlalLvl1.inputValue}"
label="#{bindings.GlalLvl1.hints.label}"
model="#{bindings.GlalLvl1.listOfValuesModel}"
required="#{bindings.GlalLvl1.hints.mandatory}"
columns="#{bindings.GlalLvl1.hints.displayWidth}"
shortDesc="#{bindings.GlalLvl1.hints.tooltip}"
binding="#{pageFlowScope.managedbean_GeneralLedger.inputListOfValues2}">
<f:validator binding="#{bindings.GlalLvl1.validator}"/>
</af:inputListOfValues>
<af:inputText value="#{bindings.GlalLvl1Desc.inputValue}"
label="#{bindings.GlalLvl1Desc.hints.label}"
required="#{bindings.GlalLvl1Desc.hints.mandatory}"
columns="#{bindings.GlalLvl1Desc.hints.displayWidth}"
maximumLength="#{bindings.GlalLvl1Desc.hints.precision}"
shortDesc="#{bindings.GlalLvl1Desc.hints.tooltip}"
partialTriggers="glalLvl1Id"
binding="#{pageFlowScope.managedbean_GeneralLedger.it39}"
id="it39">
<f:validator binding="#{bindings.GlalLvl1Desc.validator}"/>
</af:inputText>
<af:inputListOfValues id="inputListOfValues3"
popupTitle="Search and Select: #{bindings.GlalLvl2.hints.label}"
value="#{bindings.GlalLvl2.inputValue}"
label="#{bindings.GlalLvl2.hints.label}"
model="#{bindings.GlalLvl2.listOfValuesModel}"
required="#{bindings.GlalLvl2.hints.mandatory}"
columns="#{bindings.GlalLvl2.hints.displayWidth}"
shortDesc="#{bindings.GlalLvl2.hints.tooltip}"
binding="#{pageFlowScope.managedbean_GeneralLedger.inputListOfValues3}">
<f:validator binding="#{bindings.GlalLvl2.validator}"/>
</af:inputListOfValues>
<af:inputText value="#{bindings.GlalLvl2Desc.inputValue}"
label="#{bindings.GlalLvl2Desc.hints.label}"
required="#{bindings.GlalLvl2Desc.hints.mandatory}"
columns="#{bindings.GlalLvl2Desc.hints.displayWidth}"
maximumLength="#{bindings.GlalLvl2Desc.hints.precision}"
shortDesc="#{bindings.GlalLvl2Desc.hints.tooltip}"
partialTriggers="glalLvl2Id"
binding="#{pageFlowScope.managedbean_GeneralLedger.it40}"
id="it40">
<f:validator binding="#{bindings.GlalLvl2Desc.validator}"/>
</af:inputText>
<af:inputListOfValues id="inputListOfValues4"
popupTitle="Search and Select: #{bindings.GlalLvl3.hints.label}"
value="#{bindings.GlalLvl3.inputValue}"
label="#{bindings.GlalLvl3.hints.label}"
model="#{bindings.GlalLvl3.listOfValuesModel}"
required="#{bindings.GlalLvl3.hints.mandatory}"
columns="#{bindings.GlalLvl3.hints.displayWidth}"
shortDesc="#{bindings.GlalLvl3.hints.tooltip}"
binding="#{pageFlowScope.managedbean_GeneralLedger.inputListOfValues4}">
<f:validator binding="#{bindings.GlalLvl3.validator}"/>
</af:inputListOfValues>
<af:inputText value="#{bindings.GlalLvl3Desc.inputValue}"
label="#{bindings.GlalLvl3Desc.hints.label}"
required="#{bindings.GlalLvl3Desc.hints.mandatory}"
columns="#{bindings.GlalLvl3Desc.hints.displayWidth}"
maximumLength="#{bindings.GlalLvl3Desc.hints.precision}"
shortDesc="#{bindings.GlalLvl3Desc.hints.tooltip}"
partialTriggers="glalLvl3Id"
binding="#{pageFlowScope.managedbean_GeneralLedger.it41}"
id="it41">
<f:validator binding="#{bindings.GlalLvl3Desc.validator}"/>
</af:inputText>
<af:inputListOfValues id="inputListOfValues5"
popupTitle="Search and Select: #{bindings.GlalLvl4.hints.label}"
value="#{bindings.GlalLvl4.inputValue}"
label="#{bindings.GlalLvl4.hints.label}"
model="#{bindings.GlalLvl4.listOfValuesModel}"
required="#{bindings.GlalLvl4.hints.mandatory}"
columns="#{bindings.GlalLvl4.hints.displayWidth}"
shortDesc="#{bindings.GlalLvl4.hints.tooltip}"
binding="#{pageFlowScope.managedbean_GeneralLedger.inputListOfValues5}">
<f:validator binding="#{bindings.GlalLvl4.validator}"/>
</af:inputListOfValues>
<af:inputText value="#{bindings.GlalLvl4Desc.inputValue}"
label="#{bindings.GlalLvl4Desc.hints.label}"
required="#{bindings.GlalLvl4Desc.hints.mandatory}"
columns="#{bindings.GlalLvl4Desc.hints.displayWidth}"
maximumLength="#{bindings.GlalLvl4Desc.hints.precision}"
shortDesc="#{bindings.GlalLvl4Desc.hints.tooltip}"
partialTriggers="glalLvl4Id"
binding="#{pageFlowScope.managedbean_GeneralLedger.it42}"
id="it42">
<f:validator binding="#{bindings.GlalLvl4Desc.validator}"/>
</af:inputText>
<af:inputListOfValues id="inputListOfValues6"
popupTitle="Search and Select: #{bindings.GlalAcct.hints.label}"
value="#{bindings.GlalAcct.inputValue}"
label="#{bindings.GlalAcct.hints.label}"
model="#{bindings.GlalAcct.listOfValuesModel}"
required="#{bindings.GlalAcct.hints.mandatory}"
columns="#{bindings.GlalAcct.hints.displayWidth}"
shortDesc="#{bindings.GlalAcct.hints.tooltip}"
binding="#{pageFlowScope.managedbean_GeneralLedger.inputListOfValues6}">
<f:validator binding="#{bindings.GlalAcct.validator}"/>
</af:inputListOfValues>
<af:inputText value="#{bindings.GlalAcctDesc.inputValue}"
label="#{bindings.GlalAcctDesc.hints.label}"
required="#{bindings.GlalAcctDesc.hints.mandatory}"
columns="#{bindings.GlalAcctDesc.hints.displayWidth}"
maximumLength="#{bindings.GlalAcctDesc.hints.precision}"
shortDesc="#{bindings.GlalAcctDesc.hints.tooltip}"
partialTriggers="glalAcctId"
binding="#{pageFlowScope.managedbean_GeneralLedger.it43}"
id="it43">
<f:validator binding="#{bindings.GlalAcctDesc.validator}"/>
</af:inputText>
<af:inputText value="#{bindings.GlalDesc1.inputValue}"
label="#{bindings.GlalDesc1.hints.label}"
required="#{bindings.GlalDesc1.hints.mandatory}"
columns="#{bindings.GlalDesc1.hints.displayWidth}"
maximumLength="#{bindings.GlalDesc1.hints.precision}"
shortDesc="#{bindings.GlalDesc1.hints.tooltip}"
binding="#{pageFlowScope.managedbean_GeneralLedger.it44}"
id="it44">
<f:validator binding="#{bindings.GlalDesc1.validator}"/>
</af:inputText>
<af:inputListOfValues id="inputListOfValues7"
popupTitle="Search and Select: #{bindings.GlalClId.hints.label}"
value="#{bindings.GlalClId.inputValue}"
label="#{bindings.GlalClId.hints.label}"
model="#{bindings.GlalClId.listOfValuesModel}"
required="#{bindings.GlalClId.hints.mandatory}"
columns="#{bindings.GlalClId.hints.displayWidth}"
shortDesc="#{bindings.GlalClId.hints.tooltip}"
binding="#{pageFlowScope.managedbean_GeneralLedger.inputListOfValues7}">
<f:validator binding="#{bindings.GlalClId.validator}"/>
</af:inputListOfValues>
<af:inputText value="#{bindings.GlalClassDesc.inputValue}"
label="#{bindings.GlalClassDesc.hints.label}"
required="#{bindings.GlalClassDesc.hints.mandatory}"
columns="#{bindings.GlalClassDesc.hints.displayWidth}"
maximumLength="#{bindings.GlalClassDesc.hints.precision}"
shortDesc="#{bindings.GlalClassDesc.hints.tooltip}"
partialTriggers="glalClIdId"
binding="#{pageFlowScope.managedbean_GeneralLedger.it45}"
id="it45">
<f:validator binding="#{bindings.GlalClassDesc.validator}"/>
</af:inputText>
<af:selectOneChoice value="#{bindings.GlalOptType.inputValue}"
label="#{bindings.GlalOptType.label}"
required="#{bindings.GlalOptType.hints.mandatory}"
shortDesc="#{bindings.GlalOptType.hints.tooltip}"
binding="#{pageFlowScope.managedbean_GeneralLedger.soc4}"
id="soc4">
<f:selectItems value="#{bindings.GlalOptType.items}"
binding="#{pageFlowScope.managedbean_GeneralLedger.si4}"
id="si4"/>
</af:selectOneChoice>
<af:selectOneChoice value="#{bindings.GlalStatus.inputValue}"
label="#{bindings.GlalStatus.label}"
required="#{bindings.GlalStatus.hints.mandatory}"
shortDesc="#{bindings.GlalStatus.hints.tooltip}"
binding="#{pageFlowScope.managedbean_GeneralLedger.soc5}"
id="soc5">
<f:selectItems value="#{bindings.GlalStatus.items}"
binding="#{pageFlowScope.managedbean_GeneralLedger.si5}"
id="si5"/>
</af:selectOneChoice>
<af:selectBooleanCheckbox value="#{bindings.GlalBudFlag.inputValue}"
label="#{bindings.GlalBudFlag.label}"
shortDesc="#{bindings.GlalBudFlag.hints.tooltip}"
binding="#{pageFlowScope.managedbean_GeneralLedger.sbc4}"
id="sbc4"/>
<f:facet name="footer">
<af:panelGroupLayout layout="vertical"
binding="#{pageFlowScope.managedbean_GeneralLedger.pgl8}"
id="pgl8">
<af:commandButton text="Commit"
binding="#{pageFlowScope.managedbean_GeneralLedger.cb29}"
id="cb29"
actionListener="#{bindings.Commit.execute}"
disabled="#{!bindings.Commit.enabled}"/>
</af:panelGroupLayout>
</f:facet>
</af:panelFormLayout>
</af:dialog>
</af:popup>
bean - insert code
public String cb22_action2() {
BindingContainer bindings = getBindings();
OperationBinding operationBinding = bindings.getOperationBinding("CreateInsert6");
Object result = operationBinding.execute();
if (!operationBinding.getErrors().isEmpty()) {
return null;
return null;
here i want mention out. important thing .
in the af:dialog i dont want any createinsert operation.
thing is while am pressing createinsert operation on af:table the af:diaog sould be apperad as empty row for flling datas and pressing save.
save data appered in af:table. this is usecase reapeted out clearly.
Edited by: Erp on Oct 12, 2011 4:28 AM -
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Captivate5: Why should I use a pause option with a button?
I am sure this is a rookie question, but the book I got with my training does not explain it, just hand holds me through examples. I would appreciate any resource you use that goes over the basics of Captivate and the WHY and HOW behind each application within the software. I just want to look up something like "button" and read about what I should think about when implementing a button.
So, can someone please explain what the pause is used for when using a button. I am guessing that it is use to pause the slide so the user can take his/her time to choose a button to click on. I appreciate you helping me with my rookie question.Hi there
In addition to what was offered there is often a misunderstanding about the button pause point and the associated action.
Imagine the Captivate playhead as being like a boat floating along a river. When a pause is encountered the boat is stationary and doesnt float further down the river. Now the default action associated with the interactive objects is to "Continue". So lets assume that each entry point to a slide is similar to a port the boat may stop at. When the pause is released, the boat may float along to the next port (continue). Or, if you have selected the action of "Go to the next slide" it's like a helicopter picks up the boat and carries it over the remaining river bit and it is placed at the next port where it will then continue.
Hopefully this helps... Rick
Helpful and Handy Links
Captivate Wish Form/Bug Reporting Form
Adobe Certified Captivate Training
SorcererStone Blog
Captivate eBooks -
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