Advanced table with many columns
I have a advanced table with more or less 60 columns and the table is greater than the header image. How can I align the table with the advanced table?
Thanks.
Edited by: Vieira on 3-giu-2010 1.01
bedabrata wrote:
Hi,
I had a question. Can we fix the size of the lolumns in a table region. I was unable to do so using the property width of the items. So tried the below code:
// Set width for all the columns
OATableBean tableBean = (OATableBean)webBean.findIndexedChildRecursive("HeaderDetailsRN") ;
OAMessageStyledTextBean ColumnStyle;
ColumnStyle = (OAMessageStyledTextBean)tableBean.findIndexedChildRecursive("SblOrderNumber");
CSSStyle cellUpperCase = new CSSStyle();
cellUpperCase.setProperty("width","150px");
if (ColumnStyle != null)
ColumnStyle.setInlineStyle(cellUpperCase);
Now the width is getting set for the cloumn which has values (data) but it is not setting the width for columns which has null value or no data.
Could any of you guide me on how to set the width for every column of a table region.
Thanks
BedabrataOpen an other topic for this. ;-)
Edited by: Vieira on 3-giu-2010 9.27
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0 SELECT STATEMENT Optimizer=CHOOSE
1 0 SORT (AGGREGATE)
2 1 TABLE ACCESS (FULL) OF 'V_TFMC_3 _BLOCKTIME'
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0 db block gets
801 consistent gets
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0 redo size
388 bytes sent via SQL*Net to client
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2 SQL*Net roundtrips to/from client
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1 recursive calls
1 db block gets
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38791 physical reads
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No records in Azure databrowser viewing tables with many columns.
Yesterday I encountered an issue while browsing a table created in Azure.
I created a new database in Azure and in this database I created and populated several tables, containing one very big table.
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I succeeded in populating this table with our in-company table-data, means by a dtsx-package. No problem this far.
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However, the databrowser on the azure-site itself does not show any data for this table. That’s a little disappointing regarding the fact that there are more than 76000 records in this table. Refresh didn’t help.
When I browse smaller tables with less data-columns, I do get data in this data-browser.
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Kind regards,
Fred Silven
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Based on your description, you want to edit data of a large table in the Management Portal of SQL database, but it is not return rows in GUI Design tab. Can you get the data when select "TOP 200 rows"?
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TechNet Community Support -
Many to many join table with different column names
Hi have a joint table with different column names as foreign keys in the joining
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e.g. i have a many to many reltnshp btwn Table A and Table B ..and join table
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MaxDB: Table with many LONG fields does not allow an INSERT: ...?
Hi,
I have a table with many LONG fields (28). So far, everythings works fine.
However, if I add another LONG field I cannot insert a dataset anymore
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Does there exist a MaxDB parameter or anything else I can change to make inserts possible again?
Thanks in advance
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appendix:
- Create and Insert command and error message
- MaxDB version and its parameters
Create and Insert command and error message
CREATE TABLE "DBA"."AZ_Z_TEST02"
"ZTB_ID" Integer NOT NULL,
"ZTB_NAMEOFREPORT" Char (400) ASCII DEFAULT '',
"ZTB_LONG_COMMENT" LONG ASCII DEFAULT '',
"ZTB_LONG_TEXTBLOCK_00" LONG ASCII DEFAULT '',
"ZTB_LONG_TEXTBLOCK_01" LONG ASCII DEFAULT '',
"ZTB_LONG_TEXTBLOCK_02" LONG ASCII DEFAULT '',
"ZTB_LONG_TEXTBLOCK_03" LONG ASCII DEFAULT '',
"ZTB_LONG_TEXTBLOCK_04" LONG ASCII DEFAULT '',
"ZTB_LONG_TEXTBLOCK_05" LONG ASCII DEFAULT '',
"ZTB_LONG_TEXTBLOCK_06" LONG ASCII DEFAULT '',
"ZTB_LONG_TEXTBLOCK_07" LONG ASCII DEFAULT '',
"ZTB_LONG_TEXTBLOCK_08" LONG ASCII DEFAULT '',
"ZTB_LONG_TEXTBLOCK_09" LONG ASCII DEFAULT '',
"ZTB_LONG_TEXTBLOCK_10" LONG ASCII DEFAULT '',
"ZTB_LONG_TEXTBLOCK_11" LONG ASCII DEFAULT '',
"ZTB_LONG_TEXTBLOCK_12" LONG ASCII DEFAULT '',
"ZTB_LONG_TEXTBLOCK_13" LONG ASCII DEFAULT '',
"ZTB_LONG_TEXTBLOCK_14" LONG ASCII DEFAULT '',
"ZTB_LONG_TEXTBLOCK_15" LONG ASCII DEFAULT '',
"ZTB_LONG_TEXTBLOCK_16" LONG ASCII DEFAULT '',
"ZTB_LONG_TEXTBLOCK_17" LONG ASCII DEFAULT '',
"ZTB_LONG_TEXTBLOCK_18" LONG ASCII DEFAULT '',
"ZTB_LONG_TEXTBLOCK_19" LONG ASCII DEFAULT '',
"ZTB_LONG_TEXTBLOCK_20" LONG ASCII DEFAULT '',
"ZTB_LONG_TEXTBLOCK_21" LONG ASCII DEFAULT '',
"ZTB_LONG_TEXTBLOCK_22" LONG ASCII DEFAULT '',
"ZTB_LONG_TEXTBLOCK_23" LONG ASCII DEFAULT '',
"ZTB_LONG_TEXTBLOCK_24" LONG ASCII DEFAULT '',
"ZTB_LONG_TEXTBLOCK_25" LONG ASCII DEFAULT '',
"ZTB_LONG_TEXTBLOCK_26" LONG ASCII DEFAULT '',
PRIMARY KEY ("ZTB_ID")
The insert command
INSERT INTO AZ_Z_TEST02 SET ztb_id = 87
works fine. If I add the LONG field
"ZTB_LONG_TEXTBLOCK_27" LONG ASCII DEFAULT '',
the following error occurs:
Auto Commit: On, SQL Mode: Internal, Isolation Level: Committed
General error;-7032 POS(1) SQL statement not allowed for column of data type LONG
INSERT INTO AZ_Z_TEST02 SET ztb_id = 88
MaxDB version and its parameters
All db params given by
dbmcli -d myDB -u dbm,dbm param_directgetall > maxdb_params.txt
are
KERNELVERSION KERNEL 7.5.0 BUILD 026-123-094-430
INSTANCE_TYPE OLTP
MCOD NO
RESTART_SHUTDOWN MANUAL
SERVERDBFOR_SAP YES
_UNICODE NO
DEFAULT_CODE ASCII
DATE_TIME_FORMAT INTERNAL
CONTROLUSERID DBM
CONTROLPASSWORD
MAXLOGVOLUMES 10
MAXDATAVOLUMES 11
LOG_VOLUME_NAME_001 LOG_001
LOG_VOLUME_TYPE_001 F
LOG_VOLUME_SIZE_001 64000
DATA_VOLUME_NAME_0001 DAT_0001
DATA_VOLUME_TYPE_0001 F
DATA_VOLUME_SIZE_0001 64000
DATA_VOLUME_MODE_0001 NORMAL
DATA_VOLUME_GROUPS 1
LOG_BACKUP_TO_PIPE NO
MAXBACKUPDEVS 2
BACKUP_BLOCK_CNT 8
LOG_MIRRORED NO
MAXVOLUMES 22
MULTIO_BLOCK_CNT 4
DELAYLOGWRITER 0
LOG_IO_QUEUE 50
RESTARTTIME 600
MAXCPU 1
MAXUSERTASKS 50
TRANSRGNS 8
TABRGNS 8
OMSREGIONS 0
OMSRGNS 25
OMS_HEAP_LIMIT 0
OMS_HEAP_COUNT 1
OMS_HEAP_BLOCKSIZE 10000
OMS_HEAP_THRESHOLD 100
OMS_VERS_THRESHOLD 2097152
HEAP_CHECK_LEVEL 0
ROWRGNS 8
MINSERVER_DESC 16
MAXSERVERTASKS 20
_MAXTRANS 288
MAXLOCKS 2880
LOCKSUPPLY_BLOCK 100
DEADLOCK_DETECTION 4
SESSION_TIMEOUT 900
OMS_STREAM_TIMEOUT 30
REQUEST_TIMEOUT 5000
USEASYNC_IO YES
IOPROCSPER_DEV 1
IOPROCSFOR_PRIO 1
USEIOPROCS_ONLY NO
IOPROCSSWITCH 2
LRU_FOR_SCAN NO
PAGESIZE 8192
PACKETSIZE 36864
MINREPLYSIZE 4096
MBLOCKDATA_SIZE 32768
MBLOCKQUAL_SIZE 16384
MBLOCKSTACK_SIZE 16384
MBLOCKSTRAT_SIZE 8192
WORKSTACKSIZE 16384
WORKDATASIZE 8192
CATCACHE_MINSIZE 262144
CAT_CACHE_SUPPLY 1632
INIT_ALLOCATORSIZE 229376
ALLOW_MULTIPLE_SERVERTASK_UKTS NO
TASKCLUSTER01 tw;al;ut;2000sv,100bup;10ev,10gc;
TASKCLUSTER02 ti,100dw;30000us;
TASKCLUSTER03 compress
MPRGN_QUEUE YES
MPRGN_DIRTY_READ NO
MPRGN_BUSY_WAIT NO
MPDISP_LOOPS 1
MPDISP_PRIO NO
XP_MP_RGN_LOOP 0
MP_RGN_LOOP 0
MPRGN_PRIO NO
MAXRGN_REQUEST 300
PRIOBASE_U2U 100
PRIOBASE_IOC 80
PRIOBASE_RAV 80
PRIOBASE_REX 40
PRIOBASE_COM 10
PRIOFACTOR 80
DELAYCOMMIT NO
SVP1_CONV_FLUSH NO
MAXGARBAGECOLL 0
MAXTASKSTACK 1024
MAX_SERVERTASK_STACK 100
MAX_SPECIALTASK_STACK 100
DWIO_AREA_SIZE 50
DWIO_AREA_FLUSH 50
FBM_VOLUME_COMPRESSION 50
FBM_VOLUME_BALANCE 10
FBMLOW_IO_RATE 10
CACHE_SIZE 10000
DWLRU_TAIL_FLUSH 25
XP_DATA_CACHE_RGNS 0
DATACACHE_RGNS 8
XP_CONVERTER_REGIONS 0
CONVERTER_REGIONS 8
XP_MAXPAGER 0
MAXPAGER 11
SEQUENCE_CACHE 1
IDXFILELIST_SIZE 2048
SERVERDESC_CACHE 73
SERVERCMD_CACHE 21
VOLUMENO_BIT_COUNT 8
OPTIM_MAX_MERGE 500
OPTIM_INV_ONLY YES
OPTIM_CACHE NO
OPTIM_JOIN_FETCH 0
JOIN_SEARCH_LEVEL 0
JOIN_MAXTAB_LEVEL4 16
JOIN_MAXTAB_LEVEL9 5
READAHEADBLOBS 25
RUNDIRECTORY E:\_mp\u_v_dbs\EVERW_C5
_KERNELDIAGFILE knldiag
KERNELDIAGSIZE 800
_EVENTFILE knldiag.evt
_EVENTSIZE 0
_MAXEVENTTASKS 1
_MAXEVENTS 100
_KERNELTRACEFILE knltrace
TRACE_PAGES_TI 2
TRACE_PAGES_GC 0
TRACE_PAGES_LW 5
TRACE_PAGES_PG 3
TRACE_PAGES_US 10
TRACE_PAGES_UT 5
TRACE_PAGES_SV 5
TRACE_PAGES_EV 2
TRACE_PAGES_BUP 0
KERNELTRACESIZE 648
EXTERNAL_DUMP_REQUEST NO
AKDUMP_ALLOWED YES
_KERNELDUMPFILE knldump
_RTEDUMPFILE rtedump
UTILITYPROTFILE dbm.utl
UTILITY_PROTSIZE 100
BACKUPHISTFILE dbm.knl
BACKUPMED_DEF dbm.mdf
MAXMESSAGE_FILES 0
EVENTALIVE_CYCLE 0
_SHAREDDYNDATA 10280
_SHAREDDYNPOOL 3607
USE_MEM_ENHANCE NO
MEM_ENHANCE_LIMIT 0
__PARAM_CHANGED___ 0
__PARAM_VERIFIED__ 2008-05-13 13:47:17
DIAG_HISTORY_NUM 2
DIAG_HISTORY_PATH E:\_mp\u_v_dbs\EVERW_C5\DIAGHISTORY
DIAGSEM 1
SHOW_MAX_STACK_USE NO
LOG_SEGMENT_SIZE 21333
SUPPRESS_CORE YES
FORMATTING_MODE PARALLEL
FORMAT_DATAVOLUME YES
HIRES_TIMER_TYPE CPU
LOAD_BALANCING_CHK 0
LOAD_BALANCING_DIF 10
LOAD_BALANCING_EQ 5
HS_STORAGE_DLL libhsscopy
HS_SYNC_INTERVAL 50
USE_OPEN_DIRECT NO
SYMBOL_DEMANGLING NO
EXPAND_COM_TRACE NO
OPTIMIZE_OPERATOR_JOIN_COSTFUNC YES
OPTIMIZE_JOIN_PARALLEL_SERVERS 0
OPTIMIZE_JOIN_OPERATOR_SORT YES
OPTIMIZE_JOIN_OUTER YES
JOIN_OPERATOR_IMPLEMENTATION IMPROVED
JOIN_TABLEBUFFER 128
OPTIMIZE_FETCH_REVERSE YES
SET_VOLUME_LOCK YES
SHAREDSQL NO
SHAREDSQL_EXPECTEDSTATEMENTCOUNT 1500
SHAREDSQL_COMMANDCACHESIZE 32768
MEMORY_ALLOCATION_LIMIT 0
USE_SYSTEM_PAGE_CACHE YES
USE_COROUTINES YES
MIN_RETENTION_TIME 60
MAX_RETENTION_TIME 480
MAX_SINGLE_HASHTABLE_SIZE 512
MAX_HASHTABLE_MEMORY 5120
HASHED_RESULTSET NO
HASHED_RESULTSET_CACHESIZE 262144
AUTO_RECREATE_BAD_INDEXES NO
LOCAL_REDO_LOG_BUFFER_SIZE 0
FORBID_LOAD_BALANCING NO>
Lars Breddemann wrote:
> Hi Michael,
>
> this really looks like one of those "Find-the-5-errors-in-the-picture" riddles to me.
> Really.
>
> Ok, first to your question: this seems to be a bug - I could reproduce it with my 7.5. Build 48.
> Anyhow, when I use
>
> insert into "AZ_Z_TEST02" values (87,'','','','','','','','','','','','','','','',''
> ,'','','','','','','','','','','','','','','','')
>
> it works fine.
It solves my problem. Thanks a lot. -- I hardly can believe that this is all needed to solve the bug. This may be the reason why I have not given it a try.
>
Since explicitely specifying all values for an insert is a good idea anyhow (you can see directly, what value the new tupel will have), you may want to change your code to this.
>
> Now to the other errors:
> - 28 Long values per row?
> What the heck is wrong with the data design here?
> Honestly, you can save data up to 2 GB in a BLOB/CLOB.
> Currently, your data design allows 56 GB per row.
> Moreover 26 of those columns seems to belong together originally - why do you split them up at all?
>
> - The "ZTB_NAMEOFREPORT" looks like something the users see -
> still there is no unique constraint preventing that you get 10000 of reports with the same name...
You are right. This table looks a bit strange. The story behind it is: Each crystal report in the application has a few textblocks which are the same for all the e.g. persons the e.g. letter is created for. Principally, the textblocks could be directy added to the crystal report. However, as it is often the case, these textblocks may change once in a while. Thus, I put the texts of the textblock into this "strange" db table (one row for each report, one field for each textblock, the name of the report is given by "ztb_nameofreport"). And the application offers a menue by which these textblocks can be changed. Of course, the fields in the table could be of type CHAR, but LONG has the advantage that I do not have to think about the length of the field, since sometime the texts are short and sometimes they are really long.
(These texts would blow up the sql select command of the crystal report very much if they were integrated into the this select command. Thus it is realized in another way: the texts are read before the crystal report is loaded, then the texts are "given" to the crystal report (by its parameters), and finally the crystal report is loaded.)
>
- MaxDB 7.5 Build 26 ?? Where have you been the last years?
> Really - download the 7.6.03 Version [here|https://www.sdn.sap.com/irj/sdn/maxdb-downloads] from SDN and upgrade.
> With 7.6. I was not able to reproduce your issue at all.
The customer still has Win98 clients. MaxDB odbc driver 7.5.00.26 does not work for them. I got the hint to use odbc driver 7.3 (see [lists.mysql.com/maxdb/25667|lists.mysql.com/maxdb/25667]). Do MaxDB 7.6 and odbc driver 7.3 work together?
All Win98 clients may be replaced by WinXP clients in the near future. Then, an upgrade may be reasonable.
>
- Are you really putting your data into the DBA schema? Don't do that, ever.
> DBM/SUPERDBA (the sysdba-schemas) are reserved for the MaxDB system tables.
> Create a user/schema for your application data and put your tables into that.
>
> KR Lars
In the first MaxDB version I used, schemas were not available. I haven't changed it afterwards. Is there an easy way to "move an existing table into a new schema"?
Michael -
Error while importing a table with BLOB column
Hi,
I am having a table with BLOB column. When I export such a table it gets exported correctly, but when I import the same in different schema having different tablespace it throws error
IMP-00017: following statement failed with ORACLE error 959:
"CREATE TABLE "CMM_PARTY_DOC" ("PDOC_DOC_ID" VARCHAR2(10), "PDOC_PTY_ID" VAR"
"CHAR2(10), "PDOC_DOCDTL_ID" VARCHAR2(10), "PDOC_DOC_DESC" VARCHAR2(100), "P"
"DOC_DOC_DTL_DESC" VARCHAR2(100), "PDOC_RCVD_YN" VARCHAR2(1), "PDOC_UPLOAD_D"
"ATA" BLOB, "PDOC_UPD_USER" VARCHAR2(10), "PDOC_UPD_DATE" DATE, "PDOC_CRE_US"
"ER" VARCHAR2(10) NOT NULL ENABLE, "PDOC_CRE_DATE" DATE NOT NULL ENABLE) PC"
"TFREE 10 PCTUSED 40 INITRANS 1 MAXTRANS 255 STORAGE(INITIAL 65536 FREELISTS"
" 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT) TABLESPACE "TS_AGIMSAPPOLOLIVE030"
"4" LOGGING NOCOMPRESS LOB ("PDOC_UPLOAD_DATA") STORE AS (TABLESPACE "TS_AG"
"IMSAPPOLOLIVE0304" ENABLE STORAGE IN ROW CHUNK 8192 PCTVERSION 10 NOCACHE L"
"OGGING STORAGE(INITIAL 65536 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEF"
"AULT))"
IMP-00003: ORACLE error 959 encountered
ORA-00959: tablespace 'TS_AGIMSAPPOLOLIVE0304' does not exist
I used the import command as follows :
imp <user/pwd@conn> file=<dmpfile.dmp> fromuser=<fromuser> touser=<touser> log=<logfile.log>
What can I do so that this table gets imported correctly?
Also tell me "whether the BLOB is stored in different tablespace than the default tablespace of the user?"
Thanks in advance.Hello,
U can either
1) create a tablespace with the same name in destination where you are trying to import.
2) get the ddl of the table, modify the tablespace name to reflect the existing tablespace name in destination and run the ddl in the destination database, and run your import command with option ignore=y--> which will ignore all the create errors.
Regards,
Vinay -
How to get current row of Advanced table with no submit
I have an advanced table with an 'Add another button'. When an empty row is created by clicking this button, LOV is used on the first column to populate other fields of the row. The rows of the table carry a button called "Add dependencies" whose functionality is to take the user to a different table to add rows to a different VO. This button is just a button and not a submitButton. I am passing the row's primary key as part of the URI as Vo attribute FdTaskId={@FdTaskId}
The button works perfectly fine for database fetched rows (rows already present in the database), but, for the rows created using 'Add Another button', though LOV populates all fields including the primary key, the URI parameter passes null to the next page. That means, the VO attribute is not set. This works fine only when a 'submit' happens in the first page. For example, if I click Add another row again, then the previously inserted row passes the primary key fine as part of {@FdTaskId}.
Could you please help me how I can resolve this issue?
Thanks,
DattaI am doing exactly that. My issues is that, VO attribute is passed correct for the table rows which are fetched from the database. For the table rows which got created through 'Add Another button', the VO attribute passed through URI as {@FdTaskId} is returning null. The VO attribute sets only when a form submit happens. For example, after adding a row through 'Add another row' button, click the same button again to add one more row and now go back to previously added row and now you can see that its VO attribute is set ({@FdTaskId} carries value )
-
How to create a table with editable column values.
Hi everyone,
I think this is very simple but i'm not able to find how to do this. This is my requirement. I need to create a table with n columns and 1 row initially. user should be able to enter data into this table and click of a button should insert data into the data base table. Also there should be a button at the bottom of the table to add 1 row to the table.
I know how to do the insert to database, but can anyone please let me know how to create a table that allows user to enter data and how to create a add 1 row button?
Thanks in Advance!Raghu,
Go through the ToolBox tutorial Create Page & Advanced table section of OAF Guide.
Step 1 - You require to create EO & a VO based on this EO. This EO will be of DataBase table where you want to insert the data.
Step 2 - Create a Advanced table region. (Refer this Adavanced table section for more on this)
Step 3 - Attach this VO in the BC4J component of Adavanced Table region.
Regards,
Gyan -
While talking with a friend, he was telling me that sometimes he uses tables with 300 columns which will only be accessed once for information extraction. For me this is a bit strange because 300 columns looks like a lot of columns for me...
Having tables with so many columns is a common practice in Data Warehousing? If yes, can you explain me on which situations this can happen and how often?
RegardsWe have tables with cca 150 columns.
You need to know that we are not talking about relational systems that are normalized. Its common practise when bilding data warehouse. Number of columns in your tables will depend on complexity and size of your warehouse, and number, size and complexity of your source systems.
Point is that even now, when data warehouse is "finished", we still add/remove columns as warehouse changes as the source systems change. -
BI Answers - need 2 compound layouts with tables with different columns
Hi,
I need 2 tables in the same report with different columns displaying. Is this possible?
I wanted to put them in their own compound layout and call each one with a view selector,
but it seems impossible to create a 2nd table with different columns in the one report.
Each time I try and replace one of the columns in the 2nd table with a different column,
a message appears saying the deleted column will be deleted from all views.
Many thanks for anyone's help.
- JennyAs per my knowledge - your requirement can be done with Pivot view but not with regular table view.
We dont have exclude column - functionality in table view.
Else, instead of creating in same report create the req. with 2 separ. reports but place them on single dashboard in 2 sep. sections. -
ORA-00939 when creating XML table with Virtual Columns
Getting error on creating table with VIRTUAL COLUMNS:
Error at Command Line:4 Column:31
Error report:
SQL Error: ORA-00939: too many arguments for function
00939. 00000 - "too many arguments for function"
Without VIRTUAL COLUMNS works fine.
Where to start?
Is it possible to add Virtual Columns after a table is created?
CREATE TABLE TDS_XML OF XMLType
XMLSCHEMA "http://xmlns.abc.com/tds/TDSSchemaGen2.xsd"
ELEMENT "TDSTestData"
VIRTUAL COLUMNS
TESTID AS (
XMLCast(
XMLQuery('declare default element namespace "http://xmlns.abc.com/tds/TDSSchemaGen2.xsd"; /TDSTestData/TestID' PASSING OBJECT_VALUE RETURNING CONTENT) AS VARCHAR2(32)
)SQL*Plus: Release 11.2.0.2.0 Production on Mon Apr 30 20:17:29 2012
Copyright (c) 1982, 2010, Oracle. All rights reserved.
Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.2.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
SQL> select * from v$version;
BANNER
Oracle Database 11g Enterprise Edition Release 11.2.0.2.0 - 64bit Production
PL/SQL Release 11.2.0.2.0 - Production
CORE 11.2.0.2.0 Production
TNS for 64-bit Windows: Version 11.2.0.2.0 - Production
NLSRTL Version 11.2.0.2.0 - Production
SQL>victor_shostak wrote:
Figured, Virtual Columns work only for Binary XML.They are only supported, currently, for Binary XML. -
Performance of large tables with ADT columns
Hello,
We are planning to build a large table ( 1 billion+ rows) with one of the columns being an Advanced Data Type (ADT) column. The ADT column will be based on a TYPE that will have approximately (250 attributes).
We are using Oracle 10g R2
Can you please tell me the following:
1. How will Oracle store the data in the ADT column?
2. Will the entire ADT record fit in one block?
3. Is it still possible to partition a table on an attribute that is part of the ADT?
4. How will the performace be affected if Oracle does a full table scan of such a table?
5. How much space will Oracle take, if any, for storing a NULL in an ADT?
I think we can create indexes on the attribute of the ADT column. Please let me know if this is not true.
Thanks for your help.I agree with D.Morgan that object type with 250 attributes is doubtful.
I don't like object tables (tables with "row objects") too.
But, your table is a relational table with object column ("column object").
C.J.Date in An introduction to Database Systems (2004, page 885) says:
"... object/relational systems ... are, or should be, basically just relational systems
that support the relational domain concept (i.e., types) properly - in other words, true relational systems,
meaning in particular systems that allow users to define their own types."
1. How will Oracle store the data in the ADT column?...
For some answers see:
“OR(DBMS) or R(DBMS), That is the Question”
http://www.quest-pipelines.com/pipelines/plsql/tips.htm#OCTOBER
and (of course):
"Oracle® Database Application Developer's Guide - Object-Relational Features" 10g Release 2 (10.2)
http://download-uk.oracle.com/docs/cd/B19306_01/appdev.102/b14260/adobjadv.htm#i1006903
Regards,
Zlatko -
Troubles when trying to transfer a table with hierarchical column to a tree
In WD for ABAP, I encounter many troubles when trying to transfer a table with hierarchical column to an actual tree. In my UI, the tree is in the left pane and the detail for a node is in the right.
1. With hierarchical table, I can bind the dataSource of the table directly to the context node in View which is mapped to a context node in component controller which is a DDIC structure. But with a tree, is it possible to map the dataSource of the tree or node in tree to context node in component controller?
2. With hierarchical table, when lead selection changed, the detail info in the right pane will change automatically. But with a tree, it seems to have to be implemented via action by myself.
Can anyone give some suggestions to overcome these troubles?Wei,
<i>With tree table, the dataSource of the table is just bound to the context node ORG_UNIT</i>
Hmmm... You said, that this node resides in component controller, not in view controller. Or does it?
Any recursive node that can be displayed with tree table can be displayed with tree as well. Period.
1. Create tree and bind data source to the same node as table data source.
2. Create tree node type and bind it to the same node again.
3. Create one additional calculated attribute in forementioned node (type boolean) that inverts/negates attribute for table column "hasChildren" to tree node "isLeaf".
4. That's all.
VS -
ASSM and table with LOB column
I have a tablespace created with ASSM option. I've heard about that tables with LOB columns can't take the advantage of ASSM.
I made a test : create a table T with BLOB column in a ASSM tablespace. I succeeded!
Now I have some questions:
1. Since the segments of table T can't use ASSM to manage its blocks, what's the actrual approach? The traditional freelists??
2. Will there be some bad impacts on the usage of the tablespace if table T becomes larger and larger and is used frequently?
Thanks in advance.Can you explain what you mean by #1 because I believe it is incorrect and it does not make sense in my personal opinion. You can create a table in an ASSM tablespace that has a LOB column from 9iR2 on I believe (could be wrong). LOBs don't follow the traditional PCTFREE/PCTUSED scenario. They allocate data in what are called "chunks" that you can define at the time you create the table. In fact I think the new SECUREFILE LOBs actually require ASSM tablespaces.
HTH!
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