Using and Indexing Tables

Hi, I'm fairly new to LabVIEW and had a few questions in regards to a VI I'm building.
I would like to be able to enter in a pressure profile into a table (basically a pressure and time the system stays at that pressure). However, the built-in tables that I've found only use the string format. Is there a standard table for using numeric values, or do I have to build the table from scratch? I could not seem to find a way to format the table to use numeric values.
In addition, I'm trying to use a timer in order to look up the associated pressure value. For instance, if 10 minutes have passed, use that time to look up the pressure from the table. Is this most easily accomplished by indexing? I also saw a look-up table, but was unsure if there is a more appropriate tool to use.
Does anyone have some advice or could you point me in the right direction? Thanks in advance for your time.

Hi drfunkphd,
well a table is just a 2d array of strings...
There are other ways to store your time/pressure pairs. Maybe a 2d array of DBL would be ok? Or an array of clusters of [time, pressure] using different representation for each value?
To look up the pressure by time you have to add up the time values for each pressure value and the use "Threshold 1D Array" to find the index of the pressure value
Best regards,
GerdW
CLAD, using 2009SP1 + LV2011SP1 + LV2014SP1 on WinXP+Win7+cRIO
Kudos are welcome

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Name
Raghu
Raghu
Raghu
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Debasish
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Thanks

I also got that problem recently and after debuging for a while I figured out, that it was resulting from an error in my table's model: When the model received new items to display I
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Maybe you have also a faulty table model?...

SES and indexing table

Hi
I have a task, to use SES to create intarface (in ABAP) for search in one specyfic table. This table contains field with long description text and I would like to use SES to search over it. I read some documents and i checked SAP Help ... but i still don't know how to start. Is there any step by step tutorial for using SES? Do I have to create Business Object Type for this table? If i have to ... how to create it for to enable SES for it?
Regards
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Hi Marcin,
I don't know, what you have already read.
The official develper's guide is here:
http://help.sap.com/saphelp_nw70/helpdata/en/43/419742042fc86ae10000000a155106/frameset.htm
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http://help.sap.com/saphelp_nw70/helpdata/en/27/08ef417fc65f24e10000000a1550b0/frameset.htm
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Kind regards, Klaus

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Hiya,
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Cheers,
Lars

How to use and edit Outlines

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Thanks,
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1. SQL profile is not an alternative to stored outline. Oracle implemented SQL plan baseline as an alternative to stored outline.
2. Stored outline can be used as an way of chaning execution plan without modifying the origincal SQL text(OP seems to find the way of doing this, am I right?).
I call it "switching outline".
See following test case which demonstrate how to use stored outline to fix execution plan without chaning SQL text.
UKJA@ukja102> -- create objects
UKJA@ukja102> drop table t1 purge;
Table dropped.
Elapsed: 00:00:00.12
UKJA@ukja102>
UKJA@ukja102> create table t1(c1 int, c2 int);
Table created.
Elapsed: 00:00:00.01
UKJA@ukja102>
UKJA@ukja102> create index t1_n1 on t1(c1);
Index created.
Elapsed: 00:00:00.03
UKJA@ukja102> create index t1_n2 on t1(c2);
Index created.
Elapsed: 00:00:00.01
UKJA@ukja102>
UKJA@ukja102> insert into t1
2 select level, level
3 from dual
4 connect by level <= 1000
5 ;
1000 rows created.
Elapsed: 00:00:00.04
UKJA@ukja102>
UKJA@ukja102> exec dbms_stats.gather_table_stats(user, '&1', no_invalidate=>false);
PL/SQL procedure successfully completed.
Elapsed: 00:00:00.42
UKJA@ukja102>
UKJA@ukja102>
UKJA@ukja102> --------------------------------------------------
UKJA@ukja102> -- case1: switching outline
UKJA@ukja102>
UKJA@ukja102> -- this is "current" plan
UKJA@ukja102> explain plan for
2 select /*+ full(t1) */
3    *
4 from t1
5 where c1 = 1 or c2 = 2
6 ;
Explained.
Elapsed: 00:00:00.04
UKJA@ukja102>
UKJA@ukja102> @plan
UKJA@ukja102> select * from table(dbms_xplan.display)
2 /
PLAN_TABLE_OUTPUT
Plan hash value: 3617692013
| Id | Operation         | Name | Rows | Bytes | Cost (%CPU)| Time     |
|   0 | SELECT STATEMENT |      |     2 |    14 |     3   (0)| 00:00:01 |
|* 1 | TABLE ACCESS FULL| T1   |     2 |    14 |     3   (0)| 00:00:01 |
Predicate Information (identified by operation id):
   1 - filter("C1"=1 OR "C2"=2)
13 rows selected.
Elapsed: 00:00:00.14
UKJA@ukja102>
UKJA@ukja102> -- want to change to this
UKJA@ukja102> explain plan for
2 select /*+ use_concat */
3    *
4 from t1
5 where c1 = 1 or c2 = 2
6 ;
Explained.
Elapsed: 00:00:00.01
UKJA@ukja102>
UKJA@ukja102> @plan
UKJA@ukja102> select * from table(dbms_xplan.display)
2 /
PLAN_TABLE_OUTPUT
Plan hash value: 82564388
| Id | Operation                    | Name | Rows | Bytes | Cost (%CPU)| Time
     |
|   0 | SELECT STATEMENT             |       |     2 |    14 |     4   (0)| 00:0
0:01 |
|   1 | CONCATENATION               |       |       |       |            |
     |
|   2 |   TABLE ACCESS BY INDEX ROWID| T1    |     1 |     7 |     2   (0)| 00:0
0:01 |
|* 3 |    INDEX RANGE SCAN          | T1_N2 |     1 |       |     1   (0)| 00:0
0:01 |
|* 4 |   TABLE ACCESS BY INDEX ROWID| T1    |     1 |     7 |     2   (0)| 00:0
0:01 |
|* 5 |    INDEX RANGE SCAN          | T1_N1 |     1 |       |     1   (0)| 00:0
0:01 |
Predicate Information (identified by operation id):
   3 - access("C2"=2)
   4 - filter(LNNVL("C2"=2))
   5 - access("C1"=1)
19 rows selected.
Elapsed: 00:00:00.04
UKJA@ukja102>
UKJA@ukja102> -- create "bad" outline
UKJA@ukja102> create or replace outline test_outln1
2 on
3 select /*+ full(t1) */
4    *
5 from t1
6 where c1 = 1 or c2 = 2
7 ;
Outline created.
Elapsed: 00:00:00.18
UKJA@ukja102>
UKJA@ukja102>
UKJA@ukja102> -- create "good" outline
UKJA@ukja102> create or replace outline test_outln2
2 on
3 select /*+ use_concat */
4    *
5 from t1
6 where c1 = 1 or c2 = 2
7 ;
Outline created.
Elapsed: 00:00:00.01
UKJA@ukja102>
UKJA@ukja102> -- check outline
UKJA@ukja102> select hint
2 from user_outline_hints
3 where name = 'TEST_OUTLN2'
4 ;
HINT
INDEX(@"SEL$1_2" "T1"@"SEL$1_2" ("T1"."C1"))
INDEX(@"SEL$1_1" "T1"@"SEL$1" ("T1"."C2"))
OUTLINE(@"SEL$1")
OUTLINE_LEAF(@"SEL$1_2")
USE_CONCAT(@"SEL$1" 8)
OUTLINE_LEAF(@"SEL$1_1")
OUTLINE_LEAF(@"SEL$1")
ALL_ROWS
OPTIMIZER_FEATURES_ENABLE('10.2.0.1')
IGNORE_OPTIM_EMBEDDED_HINTS
10 rows selected.
Elapsed: 00:00:00.11
UKJA@ukja102>
UKJA@ukja102>
UKJA@ukja102> -- update outline
UKJA@ukja102> update outln.ol$
2 set hintcount = (
3    select hintcount
4    from outln.ol$
5    where ol_name = 'TEST_OUTLN2')
6 where
7    ol_name = 'TEST_OUTLN1'
8 ;
1 row updated.
Elapsed: 00:00:00.01
UKJA@ukja102>
UKJA@ukja102> delete from outln.ol$hints
2 where ol_name = 'TEST_OUTLN1'
3 ;
5 rows deleted.
Elapsed: 00:00:00.00
UKJA@ukja102>
UKJA@ukja102> update outln.ol$hints
2 set ol_name = 'TEST_OUTLN1'
3 where ol_name = 'TEST_OUTLN2'
4 ;
10 rows updated.
Elapsed: 00:00:00.03
UKJA@ukja102>
UKJA@ukja102> delete from outln.ol$nodes
2 where ol_name = 'TEST_OUTLN1'
3 ;
1 row deleted.
Elapsed: 00:00:00.01
UKJA@ukja102>
UKJA@ukja102> update outln.ol$nodes
2 set ol_name = 'TEST_OUTLN1'
3 where ol_name = 'TEST_OUTLN2'
4 ;
3 rows updated.
Elapsed: 00:00:00.01
UKJA@ukja102>
UKJA@ukja102> commit;
Commit complete.
Elapsed: 00:00:00.00
UKJA@ukja102>
UKJA@ukja102> -- see that stored outline is used in explain plan
UKJA@ukja102> alter session set use_stored_outlines = true;
Session altered.
Elapsed: 00:00:00.04
UKJA@ukja102>
UKJA@ukja102> explain plan for
2 select /*+ full(t1) */
3    *
4 from t1
5 where c1 = 1 or c2 = 2
6 ;
Explained.
Elapsed: 00:00:00.03
UKJA@ukja102>
UKJA@ukja102> @plan
UKJA@ukja102> select * from table(dbms_xplan.display)
2 /
PLAN_TABLE_OUTPUT
Plan hash value: 82564388
| Id | Operation                    | Name | Rows | Bytes | Cost (%CPU)| Time
     |
|   0 | SELECT STATEMENT             |       |     2 |    14 |     4   (0)| 00:0
0:01 |
|   1 | CONCATENATION               |       |       |       |            |
     |
|   2 |   TABLE ACCESS BY INDEX ROWID| T1    |     1 |     7 |     2   (0)| 00:0
0:01 |
|* 3 |    INDEX RANGE SCAN          | T1_N2 |     1 |       |     1   (0)| 00:0
0:01 |
|* 4 |   TABLE ACCESS BY INDEX ROWID| T1    |     1 |     7 |     2   (0)| 00:0
0:01 |
|* 5 |    INDEX RANGE SCAN          | T1_N1 |     1 |       |     1   (0)| 00:0
0:01 |
Predicate Information (identified by operation id):
   3 - access("C2"=2)
   4 - filter(LNNVL("C2"=2))
   5 - access("C1"=1)
Note
   - outline "TEST_OUTLN1" used for this statement
23 rows selected.
Elapsed: 00:00:00.06
UKJA@ukja102>
UKJA@ukja102> drop outline test_outln1;
Outline dropped.
Elapsed: 00:00:00.04
UKJA@ukja102> drop outline test_outln2;
Outline dropped.================================
Dion Cho - Oracle Performance Storyteller
http://dioncho.wordpress.com (english)
http://ukja.tistory.com (korean)
================================
Edited by: Dion_Cho on Jan 29, 2009 8:25 PM
Typo...

Should we use LOGGING or NOLOGGING for table, lob segment, and indexes?

We have some DML performance issue on cf contention over the tables that also include LOB segments. In this case, should we define LOGGING on tables, lob segments, and/or INDEXES?
Based on the metalink note < Performance Degradation as a Result of 'enq: CF - contention' [ID 1072417.1]> It looks we need to turn on logging for at least table and lob segment. What about the indexes?
Thanks!

>
These tables that have nologging are likely from the application team. Yes, we need to turn on the logging from nologging for tables and lob segments. What about the indexes?
>
Indexes only get modified when the underlying table is modified. When you need recovery you don't want to do things that can interfere with Oracle's ability to perform its normal recovery. For indexes there will never be loss of data that can't be recovered by rebuilding the index.
But use of NOLOGGING means that NO RECOVERY is possible. For production objects you should ALWAYS use LOGGING. And even for those use cases where use of NOLOGGING is appropriate for a table (loading a large amount of data into a staging table) the indexes are typically dropped (or at least disabled) before the load and then rebuilt afterward. When they are rebuilt NOLOGGING is used during the rebuild. Normal index operations will be logged anyway so for these 'offline' staging tables the setting for the indexes doesn't really matter. Still, as a rule of thumb you only use NOLOGGING during the specific load (for a table) or rebuild (for an index) and then you would ALTER the setting to LOGGING again.
This is from Tom Kyte in his AskTom blog from over 10 years ago and it still applies today.
http://asktom.oracle.com/pls/asktom/f?p=100:11:0::::P11_QUESTION_ID:5280714813869
>
NO NO NO -- it does not make sense to leave objects in NOLOGGING mode in a production
instance!!!! it should be used CAREFULLY, and only in close coordination with the guys
responsible for doing backups -- every non-logged operation performed makes media
recovery for that segment IMPOSSIBLE until you back it up.
>
Use of NOLOGGING is a special-case operation. It is mainly used in Datawarehouse (OLAP systems) data processing during truncate-and-load operations on staging tables. Those are background or even offline operations and the tables are NOT accessible by end users; they are work tables used to prepare the data that will be merged to the production tables.
1. TRUNCATE a table
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3. process the data in the table
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How Find space Used by Tables and Indexes

Dear All(s)
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Can I use shrink for Tables and Indexes

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Hi;
Please see:
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Why cant we use sy-index in loop and endloop?where exactly we used sy-index

hi
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Hi...
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DB02 view is empty on Table and Index analyses DB2 9.7 after system copy

Dear All,
I did the Quality refresh by System copy export/import method. ECC6 on HP-UX DB29.7.
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b) Automatic runstats are enabled in db2 parameters
c) Reorgchk all scheduled periodically from db13 and already ran twice.
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Regards
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Hi Deepak,
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select a.somecolumns, b.othercolumns
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|   0 | SELECT STATEMENT   |              |   613 | 81529 |   578   (1)| 00:00:07 |
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So why system did not pick up the index?

Because Oracle believes, for any number of possible reasons, that the use of the index would be less efficient.
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How to make use of Index of a table in report to fetch data?

Hi,
I need a sample code for select statement which is making use of INDEX of a table
to fetch data.
Doubt:
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Hi Raja,
1) Mention the fields that you wish from database table (incase you don't need all the fields from the database table).
2) Don't use the INTO CORRESPONDING FIELDS OF TABLE ztable clause.
3)Instead use INTO TABLE ztable (But take care that during the declaration of the ztable, the fields declared are in order that in database table to fetch the Records in sequence).
Please Find the Syntax and Code Below..
SELECT * FROM <TABLE>
WHERE <WHERE>
%_HINTS ORACLE 'INDEX("<TABLE>~<INDEX ID")'.
SELECT carrid
INTO TABLE t_spfli
FROM spfli
WHERE carrud IN s_carrid AND
connid IN s_connid
%_HINTS ORACLE 'INDEX("&SPFLI&" "SPFLI~XXX")'.
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Missing Tables and Indexes greyed out in DBACOCKPIT

Hi All,
I use Solution Manager 7.01 with MS SQL Server 2008 DB.
I want to monitor with DBACOCKPIT a MS SQL Server 2005 DataBase of a SAP BPC 5.1.
I connected the DB but in DBACOCKPIT some functionality are greyed out.
I want to use in Diagnostics section the "MISSING TABLES AND INDEXES" function but this command is greyed out.
Is it possible to use this function?
Please, help me!
Regards,
Alessandro

Hi,
Gray color means that screen is disabled for any reason (authorization, SQL Server release, monitoring remote, etc).
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Please refer to the Document "The SAP DBA Cockpit for Microsoft SQL Server" in SDN.
You can get the status about the restriction in the bottom of dbacockpit screen.
Thanks,
Jagan
Edited by: jagadheeshan govindasamy on Sep 16, 2009 1:03 PM

DB02 = Missing Tables and Indexes = Unknown objects in ABAP Dictionary = DB views

Hi SAP Gurus,
on our SAP NetWeaver 7.x BW (based on AIX/Oracle) I find via transaction DB02 (path = Diagnostics => Missing Tables and Indexes) under "Unknown objects in ABAP Dictionary" under DB views a BW object /BI0/.....
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Best regards
Carlos

Hello Carlos
The database view in question is a temporary database object created during a query execution.
Please read this SAP note 449891 - Temporary database objects in BW 3.x to understand what that view is all about and impact if those views are removed.
The SAP notes 449891 and 1139396 suggests to run the report SAP_DROP_TMPTABLES to drop these temporary objects. Whether the objects are still required or not is a question to be put across to the BW team. If the temporary objects are removed when they are used by a query, then the query will fail.
Have a nice day
RB

Import dumpfile with seperate tablespaces for table and index

Hi,
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Regards,
Abbasi

Hi,
I hope you created the same tablespace structure on the target side if not so remap_tablespace option you have to use for specifying different tablespaces.Oracle will take care of putting data and index.Any how if a index is moved from one tablespace to other you have to rebuild them,once you rebuild them than only stattistics are gathered otherwise you
might face some performance issue.
Better option is to keep same tablespace structures in source and target environment.
Best regards,
Rafi.
http://rafioracledba.blogspot.com
Edited by: Rafi (Oracle DBA) on May 9, 2011 7:07 AM

Using and Indexing Tables

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