Searching into a data block

I wanna know how to search for a specific record, if i have made a data block. with up and down arrows, i move to the next/last record. but how can i search? i don't know how to make at a specific time, all the fields blank, and i type a part of name in the name field, then i wanna search all records matching that part of name
Regards,

You could do it programatically by prompting the user for search criteria, then have them press a search button. The search button could build a where clause based on the criteria entered, then call
set_block_property('blockname',DEFAULT_WHERE, your_where_clause);
go_block('blockname');
execute_query;This way you can control what the user searches on, limit choices to dropdowns, add soundex capability if a checkbox is selected, etc.
Gary

Similar Messages

Inserting rows into a data block

Hi, how do i insert 'n' rows into a data block and after that commit the changes into the data base.
Thanks for any help.

You can use something like this:
Go_Block('my_block');
first_record;
LOOP
.... insert values to the items
next_record;
END LOOP;
- for commiting changes
Do_Key('Commit_Form');
I hope this will help you.
Helena

How to find a value into a data block

There is a way to find a value into a data block, like finding
one into a record group
null

Rafael Moreno (guest) wrote:
: There is a way to find a value into a data block, like finding
: one into a record group
Try something like this:
-- has to be in a when-button-pressed or key trigger
go_block('x_block');
first_record;
r_found:=false;
loop
if :x_block.search_field:=search_value then
r_found:=true;
exit;
end if;
down;
end loop;
if r_found=false then
first_record;
message('Value '

Inserting multiple records in a data block

Hi, how do i insert multiple rows from a record group into a data block. Thanks

You do it manually. Copy the values and move to the next record in the record group and in the block.
You might like the concept of basing a block on a stored procedure better. Check out the stored procedure based block sample that comes with the Oracle Forms demos.

Data Block Write Order

Hi All
In Which order Oracle writes data into the data blocks.Example I have 3 datablock (n1-n2-n3 block size 8k) n1 is half full
1-next write if new data 3k which block oracle write into ?(n1)
2-next write has 8k which block next,? (1k--> in n1 7k--> n2 or 8k in n2)
3-oracle uses block in order(next n2-next n3) or randomly ?
Best Regards...

Oracle will initially take in a sequential order database blocks. If you have manually managed segments, blocks will be taken in the order they are declared within the free list. If one block is half full it will still be eligible for insert until it reaches the PCTFREE limit. On a ASSM it is quite the same situation, the only difference is that ASSM uses BMB's (bitmap blocks) instead. This is valid for conventional path insert. If using direct path the half filled block will be skipped as direct path requires new empty blocks beyond the high water mark.
~ Madrid.

I can not put the data of a field(LONG RAW) consulted into a item of a data block

I want to query a field that is LONG RAW(it's a image) and put the data into a item of a data block (in Forms Builder), when i write ":BLOCK.FOTO:=vfoto" i recieve this errors: "bad bind variable ....". How can i put the data of field of my DB and put the data in a item of a data block(in Forms Builder)?.
I can store a image in a table of my DB, but i want to query a image stored in my DB and put it into anothers table, all this on FORMS BUILDER.

You have to base the image item on a base table and use EXECUTE_QUERY on that block. You can't do a direct select in PL/SQL into the item

How to enter the data into data block text item which has an LOV associated

Hi,
I have a data block, one of the data block text item has an LOV assigned. when I populate this text item using the LOV and do "execute_query", it is taking the value in the text item and adding it to the search criteria, but when I enter a value manually in that text item and do "execute_query" it is showing me an alert(which I created) "Please enter a value".
My question is, why is not taking the value that I enter manually? Looks like before executing the query, this field is getting empty
How to avoid this problem and make sure that the value entered in the text item is added in the where clause of the query?
Any advice?
Thanks in advance
R.G

Problem solved!
Before doing execute-query, all the text items are being cleared,so I used a global variable to store that value
Thanks anyway
R.G

Data Block, Extents, and Segments in Datafiles

I'm trying to understand the relationship of Data Blocks, Extents, and Segments in Datafiles. What is the simpliest explanation for their relationships.

Hi,
Look at this (might be more readable if you paste it somewhere and use a font with fixed width):
SQL>CONNECT SYSTEM/MANAGER
ConnectÚ.
SQL> CREATE TABLE MyTable
2 (
3 CH1 VARCHAR2(10),
4 CH2 VARCHAR2(10)
5 ) TABLESPACE TOOLS;
Table crÚÚe.
SQL>SELECT * FROM DBA_SEGMENTS WHERE SEGMENT_NAME='MYTABLE';
OWNER SEGMENT_NAME PARTITION_NAME SEGMENT_TYPE TABLESPACE_NAME HEADER_FILE HEADER_BLOCK BYTES BLOCKS EXTENTS INITIAL_EXTENT NEXT_EXTENT MIN_EXTENTS MAX_EXTENTS PCT_INCREASE FREELISTS FREELIST_GROUPS RELATIVE_FNO BUFFER_
SYSTEM MYTABLE TABLE TOOLS 7 1555 65536 16 1 65536 1 2147483645 7 DEFAULT
SQL> SELECT * FROM DBA_EXTENTS WHERE SEGMENT_NAME='MYTABLE';
OWNER SEGMENT_NAME PARTITION_NAME SEGMENT_TYPE TABLESPACE_NAME EXTENT_ID FILE_ID BLOCK_ID BYTES BLOCKS RELATIVE_FNO
SYSTEM MYTABLE TABLE TOOLS 0 7 1553 65536 16 7
SQL> -- Give it another extent
SQL> ALTER TABLE MyTable ALLOCATE EXTENT;
Table modifiÚe.
SQL> SELECT * FROM DBA_EXTENTS WHERE SEGMENT_NAME='MYTABLE';
OWNER SEGMENT_NAME PARTITION_NAME SEGMENT_TYPE TABLESPACE_NAME EXTENT_ID FILE_ID BLOCK_ID BYTES BLOCKS RELATIVE_FNO
SYSTEM MYTABLE TABLE TOOLS 0 7 1553 65536 16 7
SYSTEM MYTABLE TABLE TOOLS 1 7 1569 65536 16 7
SQL> -- Note that in this particular case, Both extents are on the same datafile (7), and if you add the block_id (first block in the extent) of the extent 0 (first one) to the number
SQL> -- of blocks in the extent (16) = 1553 + 16 = 1569 = BLOCK_ID of the second extent (they are physically side by side)
SQL> -- THIS IS NOT ALWAYS TRUE, AND GENERALLY FALSE!
SQL>
SQL> -- Let's dump the first block and see what's in:
SQL> ALTER SYSTEM DUMP DATAFILE 7 BLOCK 1553;
SystÞme modifiÚ.
SQL> -- Now edit the trace file
/* Content:
Start dump data blocks tsn: 7 file#: 7 minblk 1553 maxblk 1553
buffer tsn: 7 rdba: 0x01c00611 (7/1553)
scn: 0x0000.0007b1fa seq: 0x02 flg: 0x00 tail: 0xb1fa2002
frmt: 0x02 chkval: 0x0000 type: 0x20=FIRST LEVEL BITMAP BLOCK
Dump of First Level Bitmap Block
nbits : 4 nranges: 1 parent dba: 0x01c00612 poffset: 0
unformatted: 13 total: 16 first useful block: 3
owning instance : 1
instance ownership changed at
Last successful Search
Freeness Status: nf1 0 nf2 0 nf3 0 nf4 0
Extent Map Block Offset: 4294967295
First free datablock : 3
Bitmap block lock opcode 0
Locker xid: : 0x0000.000.00000000
Highwater:: 0x01c00614 ext#: 0 blk#: 3 ext size: 16
#blocks in seg. hdr's freelists: 0
#blocks below: 0
mapblk 0x00000000 offset: 0
HWM Flag: HWM Set
DBA Ranges :
0x01c00611 Length: 16 Offset: 0
0:Metadata 1:Metadata 2:Metadata 3:unformatted
4:unformatted 5:unformatted 6:unformatted 7:unformatted
8:unformatted 9:unformatted 10:unformatted 11:unformatted
12:unformatted 13:unformatted 14:unformatted 15:unformatted
End dump data blocks tsn: 7 file#: 7 minblk 1553 maxblk 1553
SQL> -- Now add 2 lines
SQL> INSERT INTO MYTABLE VALUES ('ABC','123');
1 ligne crÚÚe.
SQL> COMMIT;
Validation effectuÚe.
SQL> INSERT INTO MYTABLE VALUES ('DEF','456');
1 ligne crÚÚe.
SQL> COMMIT;
Validation effectuÚe.
SQL> -- And get the ROWID (absolute line physical position) of these lines
SQL> SELECT ROWID FROM MYTABLE;
ROWID
AAAHotAAHAAAAYfAAA
AAAHotAAHAAAAYfAAB
SQL> -- Absolute file number of these 2 lines:
SQL> SELECT DBMS_ROWID.ROWID_TO_ABSOLUTE_FNO('AAAHotAAHAAAAYfAAA','SYSTEM','MYTABLE') FROM DUAL;
DBMS_ROWID.ROWID_TO_ABSOLUTE_FNO('AAAHOTAAHAAAAYFAAA','SYSTEM','MYTABLE')
7
SQL> SELECT DBMS_ROWID.ROWID_TO_ABSOLUTE_FNO('AAAHotAAHAAAAYfAAB','SYSTEM','MYTABLE') FROM DUAL;
DBMS_ROWID.ROWID_TO_ABSOLUTE_FNO('AAAHOTAAHAAAAYFAAB','SYSTEM','MYTABLE')
7
SQL> -- Both in file 7: no surprise, in the extent.
SQL> -- Let's be curious and look up the block id:
SQL> SELECT DBMS_ROWID.ROWID_BLOCK_NUMBER('AAAHotAAHAAAAYfAAA') FROM DUAL;
DBMS_ROWID.ROWID_BLOCK_NUMBER('AAAHOTAAHAAAAYFAAA')
1567
SQL> SELECT DBMS_ROWID.ROWID_BLOCK_NUMBER('AAAHotAAHAAAAYfAAB') FROM DUAL;
DBMS_ROWID.ROWID_BLOCK_NUMBER('AAAHOTAAHAAAAYFAAB')
1567
SQL> -- Both lines are in block number 1567.. look again into the dump from block 1553 (First free datablock : 3)
SQL> -- Dump the block:
SQL> ALTER SYSTEM DUMP DATAFILE 7 BLOCK 1567;
SystÞme modifiÚ.
SQL>
/* Content:
Start dump data blocks tsn: 7 file#: 7 minblk 1567 maxblk 1567
buffer tsn: 7 rdba: 0x01c0061f (7/1567)
scn: 0x0000.0007b2fd seq: 0x01 flg: 0x02 tail: 0xb2fd0601
frmt: 0x02 chkval: 0x0000 type: 0x06=trans data
Block header dump: 0x01c0061f
Object id on Block? Y
seg/obj: 0x7a2d csc: 0x00.7b2f5 itc: 2 flg: E typ: 1 - DATA                                             <--------- Here is the objet ID. 0x7a2d = 31227 (check just below block dump)
brn: 0 bdba: 0x1c00611 ver: 0x01
inc: 0 exflg: 0
Itl Xid Uba Flag Lck Scn/Fsc
0x01 0x0006.003.000002f8 0x008000b7.0081.06 --U-    1 fsc 0x0000.0007b2f9
0x02 0x0005.000.000002fd 0x00800099.008f.16 --U-    1 fsc 0x0000.0007b2fd
data_block_dump,data header at 0x2ff1064
===============
tsiz: 0xf98
hsiz: 0x16
pbl: 0x02ff1064
bdba: 0x01c0061f
76543210
flag=--------
ntab=1
nrow=2                                                                                                                                                                                              <--------- 2 Lines in the block
frre=-1
fsbo=0x16
fseo=0xf82
avsp=0xf6c
tosp=0xf6c
0xe:pti[0]     nrow=2     offs=0
0x12:pri[0]     offs=0xf8d
0x14:pri[1]     offs=0xf82
block_row_dump:
tab 0, row 0, @0xf8d
tl: 11 fb: H-FL lb: 0x1 cc: 2                                                                                                                        <--------- First line header
col 0: [ 3] 41 42 43                                                                                                                                                      <--------- Here is 'ABC'
col 1: [ 3] 31 32 33                                                                                                                                                      <--------- Here is '123'
tab 0, row 1, @0xf82
tl: 11 fb: H-FL lb: 0x2 cc: 2                                                                                                                        <--------- Second line header
col 0: [ 3] 44 45 46                                                                                                                                                      <--------- Here is 'DEF'
col 1: [ 3] 34 35 36                                                                                                                                                      <--------- Here is '456'
end_of_block_dump
End dump data blocks tsn: 7 file#: 7 minblk 1567 maxblk 1567
SQL> SELECT OBJECT_ID FROM DBA_OBJECTS WHERE OBJECT_NAME='MYTABLE';
OBJECT_ID
31277
Sincerely hope this'll help you understand.
Regards,
Yoann.

ORA-10561: block type 'TRANSACTION MANAGED DATA BLOCK', data object# 237

Hello,
I encountered ORA-10561 while I was recovering my DB.
Problem Background :-
I took a hotbakup of my DB running in Windows, I edited the Pfile and recreated the control file
I was able to succesfully mount the DB
The I gave the below command to apply the redologs and recover the DB
And the errors followed as mentioned.
The HOTBACKUP was copied and restored using a USB-PENdrive. I suspect that the datafiles and / or ARCHIVE LOGS would have had some format issues due to O/S {WINXP ---> RHEL5}
If this is the case ? then I would like to know how to convert the format of the files(Datafiles and or Redologs)
into acceptable format
>
SQL> recover database until time '2010-03-15:18:08:05' using backup controlfile;
ORA-00279: change 3447582 generated at 03/15/2010 17:41:42 needed for thread 1
ORA-00289: suggestion : /home/oracle/NEW/ARCHIVE/ARC0000000144_0706577643.0001
ORA-00280: change 3447582 for thread 1 is in sequence #144
Specify log: {<RET>=suggested | filename | AUTO | CANCEL}
/home/oracle/NEW/ARCHIVE/ARC00144_0706577643.001
ORA-00283: recovery session canceled due to errors
ORA-10562: Error occurred while applying redo to data block (file# 1, block#
1658)
ORA-10564: tablespace SYSTEM
ORA-01110: data file 1: '/home/oracle/NEW/oradata/O1_MF_SYSTEM_5M9ZKSSW_.DBF'
ORA-10561: block type 'TRANSACTION MANAGED DATA BLOCK', data object# 237
ORA-00600: internal error code, arguments: [4502], [0], [], [], [], [], [], []
>
Thanks in advance.
Regards,
Valli

You need to give much more information:
What version of Oracle? 10gR2 is not a version, 10.2.0.1 is a version.
What version of Windows, exactly? What version of linux?
ORA-600 means you need to talk to Oracle support. There is an ora-600 lookup tool, which basically searches the knowledge base (for ora-600[4502] in your case, which brings up a bunch of really, really, really old docs).
How exactly did you take the "hot backup?" There are a number of ways to do things with that name, some of which are just plain wrong.
How exactly did you get the backup from one machine to another? Which exact commands did you use to copy the files to the usb and from the usb? Did you do it more than once?
Why are you using the backup controlfile syntax? There are valid reasons, and invalid reasons to do that.
What exactly did you change in the pfile?
What does the alert log say about all this?

Insert and update a data block which is based on view--urgent help required

Hi experts,
I created a view(A_VIEW) which is based on a union select. I have created a data block A_VIW_BLOCK which is based on this view. I need to insert/update one of the base tablesfor A_VIEW through this data block. I also need to be able to make a query through all the fields in the view.
The questions are:
1.Can it be done at all?
2. What properties need to be set?
3. If can't be done, what the best approach to achieve this?
Thanks in advance!!
Michael

hi
try something like this.
CREATE TABLE demo_tab (
person_id NUMBER(3),
first_name VARCHAR2(20),
last_name VARCHAR2(20));
CREATE OR REPLACE VIEW upd_view AS
SELECT * FROM demo_tab;
INSERT INTO demo_tab
(person_id, first_name, last_name)
VALUES
(1, 'Daniel', 'Morgan');
INSERT INTO demo_tab
(person_id, first_name, last_name)
VALUES
(2, 'Helen', 'Lofstrom');
COMMIT;
SELECT * FROM upd_view;
UPDATE upd_view
SET person_id = person_id * 10;
SELECT * FROM upd_view;
desc user_updatable_columns
SELECT table_name, column_name, updatable, insertable, deletable
FROM user_updatable_columns
WHERE table_name IN (
   SELECT view_name
   FROM user_views);
SQL> create table dummy (f1 number);
Table created.
SQL> create view dummy_v
2 as
3 select f1 from dummy
4 union all
5 select f1 from dummy;
View created.
SQL> create trigger dummy_v_it
2 instead of insert
3 on dummy_v
4 for each row
5 begin
6    insert into dummy values (:NEW.f1);
7 end;
8 /
Trigger created.
SQL> insert into dummy_v values (1);
1 row created.
SQL> select * from dummy_v;
F1
1
1
SQL> select *
2 from user_updatable_columns
3 where table_name = 'DUMMY_V';
OWNER    TABLE_NAME   COLUMN_NAME UPD INS DEL
FORBESC DUMMY_V      F1            NO NO NOforms settings.
Enforce Primary Key - No
Query Allowed - Yes
Query datasource Name - V_TSFDETAIL
Insert Allowed - Yes
Update Allowed - Yes
Delete Allowed - Yes
Locking Mode - Automatic
Key Mode - Automatic
do not forget to create synonyms.
hope this helps.
sarah

How to call two data blocks at a time.

hi all
i want to call two data blocks at a time on function when button pressed.
how can I it?
many thanks

Many thanks that you people reply,
I am working in oracle form developer 6i and database 10g.
I have a form that have three data blocks,
first block have text boxes and search button,and next two blocks display records on the basis of search criteria that is inserted in the first block and when is clicked on save button.
the data that is to b displayed is from two different tables.
i used Go_block('my_block')
and call other block with the same method.
kindly guide me how can i do it.
Thanks in advance

Updating record in a data block based on view in oracle forms

hi all ,
We have two data blocks in our custom oracle form.The first data block is for search criteria provided with buttons 'GO' and 'ADD ROW' and the second data block is based on a view that fetches record when user clicks on GO based on the the criteria specified in the above block. The Below block contains one SAVE button too.
We have a requirement when GO button is pressed and corresponding records are shown in the below block, user should be able to edit the record. Want to know how to make it editable?
Help appreciated....!!!

Your view is based on how many tables and does it include all NOT NULL fields from all tables?

How to query two data blocks simultaneously?

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.
Requirement:
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.
Thanks,
Amit

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 ?
What i don't understand, what is block C used for?
An idea for the querying of block B's data: Create Non-database-items items in block A for the search-criteria you need on block B and make them Queryable.
In the PRE-QUERY-trigger on block A build a WHERE-condition if that search-criteria is entered, something like
IF :BLOCK_A.SEARCH_CRITERIA_FOR_BLOCK_B IS NOT NULL THEN
SET_BLOCK_PROPERTY('BLOCK_A', ONETIME_WHERE, 'WHERE PKVALUE IN (SELECT FKVALUE_TO_A FROM TABLE_B WHERE FIELDVALUE=' ||:BLOCK_A.SEARCH_CRITERIA_FOR_BLOCK_B)');
END IF;This would query also records to A for which you want to have the B-records. So you could keep block-structure up to master-detail.

What is the meaning of data blocks ?

hi,
What is the exact meaning of "data blocks" in the following paragraph ?
Index records and table records are organized in data blocks.
If you dispatch an SQL statement from an ABAP program to the database, the program searches for the data records requested either in the database table itself (full table scan) or by using an index (index unique scan or index range scan). If all fields requested are found in the index using an index scan, the table records do not need to be accessed.
A data block shows the level of detail in which data is written to the hard disk or read from the hard disk. Data blocks may contain multiple data records, but a single data record may be spread across several data blocks.
thanks
bhakti

Hi ,
As Per oracle , data is stored in database in form of Data blocks , extent and Segments .
Physical space of memory is allocated to store data .
first level is called BLOCKS ,nexxt is extent and last is SEGMENT .
each block can store multiple data records and Conversly large no of data records can be stored in data Blocks .
data is stored in DATA BLOCKS which is smallest unit in oracle where data is stored in bytes .
regards
Deepak.

File Sender / Separating a variable number of data blocks

Hi all,
I have a problem regarding the content conversion in a file sender adapter.
The source data has a fixed length of 10 chars, but is contained in one big line without any newlines or other sepators.
Example source data:
0123456789012345678901234567890123456789
The number of occurences can vary; that is the next file might contain more or less data blocks of 10 chars each.
Another example:
01234567890123456789
Is it possible to create a content conversion that handles this kind of data? We have already tried several configurations (for example using "fieldFixedLengths = 10") but didn't succeed. In most cases only the first data block is read an the rest is ignored. Therefore it seems to me that the adapter requires a newline in order to recognise data blocks.
The target xml structure should look like:
<Structure>
<Line>0123456789</Line>
<Line>0123456789</Line>
</Structure>
Do you have some hints on this one?
Thanks and regards,
lars

Hi Satish,
hello Ravi,
thanks for your replies.
If I understand it right, you would need two message mappings in order for this solution to work, resulting in the following steps:
- Read File into one big record using content conversion.
- Perform the first message mapping, splitting the content using the UDF.
- Perform the second message mapping, containing the "business-mapping".
Is this correct or is there a way to achive this in one single message mapping?
Thx,
lars

Searching into a data block

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