Query on data block and Operating system block

Hi ,
Does data base requests data in term's of Data blocks or operating system block's . If data block's , how an data block get accessed the operating system block . what are the advantages over separating the data blocks from the operating system block's . can any one please explain the what happens once the data base requests the data ?
Thank You

sybrand_b wrote:
This place is called 'Oracle Forum' It does not offer the Oracle University curriculum for free, nor does it offer free abstracts of the Oracle Concepts Manual.
Kindly read the Concepts Manual of your unmentioned version yourself.
Thank you.
Sybrand Bakker
Senior Oracle DBADear Sybrand
As you said, this place is called Forum. If you know answer, then answer the question. If you know the documentation, then refer to documentation. If you don't know the answer, then don't answer in such rough manner! Just stop. Just don't type anything. Just be polity

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regards
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waynesworld57 wrote:
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Dan_58 wrote:
hallo,
I would like to move our oracle's database 10.2g from server in a datacenter with Vmware environment, where the net admin will install windows 2008 with 64 bit.
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Dear all,
Need your inputs on the following problem statement...
Existing Functionality:
We have two data blocks A (Parent) and B (Child) in a relationship. Both data blocks refer to different tables.
Data block A is the query data block and for a single record in block A we can have multiple records in block B. Multiple records in block B are shown one at a time after executing a query, this is implemented by using a list item C (belongs to a third block).
For example
Let us say block B can have 5 different types of entries for each record in block A. In this case the list item C will have 5 values corresponding to these entries. Once the query is executed, block B will show the default entry for the queried record in block A. To see other entries for the record user can select the required value in list item C and corresponding entry in block B will be fetched.
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Our requirement now is to enable querying upon both data blocks A and B simultaneously. To implement this I replaced data blocks A and B with a single data block X which is based on the join of the two tables referred by the Data blocks A and B earlier. As the fields should allow insert, update, delete operations we did not use a view here.
Issue:
Now the problem is, each record in block A for which block B had multiple entries earlier is now getting listed multiple times because of the join.
I have tried but could not find any solution for this. I would appreciate if any of you can suggest how we can query both blocks simultaneously without affecting the existing functionality.
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I don't understand your requirement in detail. I try to repeat what i understood so far.
You have a master-block A based on a table A and a detail-block B based on a table B. So far so good. You can now query based on conditions just the datablock A, because B is a detail and therefore can only be queryied in context of block A.
Your reuirement is to query on both blocks A and B and find block in B also without giving conditions for the relevant block A.
Is it that ?
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Hi,
I am new to forms and am trying to modify an existing form which currently works in the following way :
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Thanks
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Thanks for the replies.
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ORA-01733: virtual column not allowed here
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select a.*,
B.vendor_name as Supplier_name,
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pa_projects_all p,
po_headers_all ph
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AND A.vendor_site_Id (+) = C.vendor_site_id
AND A.VIA_ARCHITECT_VENDOR_ID = ARCH.VENDOR_ID (+)
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I know I have to do something on either the data block property palette or the individual item property palette and clicking on any field within the form in order to update it results in the error mentioned above.
Shd I have all the item props as Query Only set to Yes ? or the ones for Table A as Query Only set to N and the other table columns as Y ?
Thanks
Preeti

Query on data block and Operating system block

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