Calculating rowlength of oracle table

Experts,
Can you please let me know how to calculate rowlength for each table in oracle?

ALL_TABLES view
AVG_ROW_LEN* NUMBER Average length of a row in the table (in bytes)For more info:
http://docs.oracle.com/cd/B19306_01/server.102/b14237/statviews_2105.htm#i1592091

Similar Messages

Can you have a calculated column in a table not a view?

We have a table which contains a series of rows
Key   Effective Date   Value
1       10/Feb/2006     123
1       23/Oct/2006      456
...We have a requirement to store an indicator that tells us which row is the most current and what the end date of the preceding row was so that we get something along the lines of:
Key   Effective Date   Value   Status         End Date
1       10/Feb/2006     123      HISTORY    22/Oct/2006
1       23/Oct/2006      456     CURRENT   NULL
...I can produce this result quite easily using the analytic function LEAD. My question is, is the answer to this problem to create a view over the table that includes the analytic function or is it possible to define a calculated column in a table that would populate/maintain this vale as part of a table definition?
And as I finish writing this I feel I've answered my own question but hey, there's no harm in asking how others have handled this kind of situation.
Cheers
Richard

My bias would be to create a view that did the calculation.
In theory, you could add those additional columns to a table and maintain the data via a set of triggers, but that would be substantially more complicated than the alternatives for little or no benefit.
A third option would be a materialized view. That might be easier to deal with if you want to have different indexing strategies for current and historical records or if the historical data is queried often enough and updated infrequently enough that it ends up being cheaper to do the calculation once during the update rather than every time the query is run.
A fourth option would be to use stored procedures to maintain the data and have that stored procedure expire the current row and add the new row.
Finally, you might consider version-enabling your table using Workspace Manager rather than writing your own code since Oracle has already written all this code for you.
Justin

Shrink Oracle Table after Deletion

A few database tables are very big. An Oracle table still holds the disk space occupied by deleted records according to http://stackoverflow.com/questions/6540546/oracle-10g-table-size-after-deletion-of-multiple-rows. Re: shrink table after delete teaches the following commands to release the idle space from the table.
ALTER TABLE TABLE1 DEALLOCATE UNUSED;
ALTER TABLE TABLE1 ENABLE ROW MOVEMENT;
ALTER TABLE TABLE1 SHRINK SPACE;
ALTER TABLE TABLE1 MOVE;
1. Are the commands feasible?
2. Are they safe?
3. What will be the impacts of running the commands?
4. Is there any other workable safe approach shrinking a table?

Hi,
I advise using shrink table operation.
The tablespace which belong to your table must be in ASSM (Automatic segment space management) to use shrink.
Shrink is safe but you need to run two commands :
1)ALTER TABLE TABLE1 SHRINK SPACE COMPACT; (This is long operation which moves data, but can be done online)
2)ALTER TABLE TABLE1 SHRINK SPACE; (this is quick if you run SHRINK SPACE COMPACT before, it only shift the High Water Mark. Be carreful if you don't run SHRINK SPACE COMPACT before your table will be locked for a long time)
Another point, is that execution plans are calculed using the HWM so SHRINK the table (The 2nd command) will invalidate all the cursors in shared pool where the table is in. So execution plan need to be recalculated (often not a problem).
Regards,

Oracle Table Recomendations

Hello All,
We have source data for prepaid system like voice calls, sms etc.
Oracle database 10G is our target database.
Average number of records for voice is 20 million and sms is having 10 million records per day.
We have two options for loading data in oracle tables.
1. Load the source data into separate tables like voice calls data into voice_calls partitioned(call_date)
and sms data into sms_data table (also partitioned on date).
2. Second way is that we load all calculated columns into one table.
Columns like call_type(voice/sms),mobile_number,call_date,duration,balance_used etc
Partition the table based on call_type and sub partitioned on call_date column
And (if possible) further sub partition on call_dir i.e either incomingcall/outgoingcall
And place the remaining columns from source data (which are not required for analysis) into separate tables.
Benefit of adopting the second technique is that during analysis of revenue, we can get all information from one table and we don’t need to join multiple tables.
Now my questions are:
Is it feasible to create the calculated columns table having data from different sources as its size will increase apx 10GB per day or it is recommended to create different calculated tables?
Which method will give us performance and retrieval benefits?
Any performance issue while inserting/selecting data from such fact table with large data volume and sub partitions?
Any problem during analyzing of such table?
Thanks

hi~
1. tablespace coalesce(공간 병합) 을 권장합니다.
2. index rebuild : 이것은 Table에 Index가 걸려있는 상황에서 DML이 자주 발생하면 delete marking된 index entry가 많아지는데 이것을 제거하여 공간 및 검색 효율을 향상시킬수 있습니다.

Jython error while updating a oracle table based on file count

Hi,
i have jython procedure for counting counting records in a flat file
Here is the code(took from odiexperts) modified and am getting errors, somebody take a look and let me know what is the sql exception in this code
COMMAND on target: Jython
Command on source : Oracle --and specified the logical schema
Without connecting to the database using the jdbc connection i can see the output successfully, but i want to update the oracle table with count. any help is greatly appreciated
---------------------------------Error-----------------------------
org.apache.bsf.BSFException: exception from Jython:
Traceback (innermost last):
File "<string>", line 45, in ?
java.sql.SQLException: ORA-00936: missing expression
---------------------------------------Code--------------------------------------------------
import java.sql.Connection
import java.sql.Statement
import java.sql.DriverManager
import java.sql.ResultSet
import java.sql.ResultSetMetaData
import os
import string
import java.sql as sql
import java.lang as lang
import re
filesrc = open('c:\mm\xyz.csv','r')
first=filesrc.readline()
lines = 0
while first:
#get the no of lines in the file
lines += 1
first=filesrc.readline()
#print lines
## THE ABOVE PART OF THE PROGRAM IS TO COUNT THE NUMBER OF LINES
## AND STORE IT INTO THE VARIABLE `LINES `
def intWithCommas(x):
if type(x) not in [type(0), type(0L)]:
raise TypeError("Parameter must be an integer.")
if x < 0:
return '-' + intWithCommas(-x)
result = ''
while x >= 1000:
x, r = divmod(x, 1000)
result = ",%03d%s" % (r, result)
return "%d%s" % (x, result)
## THE ABOVE PROGRAM IS TO DISPLAY THE NUMBERS
sourceConnection = odiRef.getJDBCConnection("SRC")
sqlstring = sourceConnection.createStatement()
sqlstmt="update tab1 set tot_coll_amt = to_number( "#lines ") where load_audit_key=418507"
sqlstring.executeQuery(sqlstmt)
sourceConnection.close()
s0=' \n\nThe Number of Lines in the File are ->> '
s1=str(intWithCommas(lines))
s2=' \n\nand the First Line of the File is ->> '
filesrc.seek(0)
s3=str(filesrc.readline())
final=s0 + s1 + s2 + s3
filesrc.close()
raise final

i changed as you adviced ankit
am getting the following error now
org.apache.bsf.BSFException: exception from Jython:
Traceback (innermost last):
File "<string>", line 37, in ?
java.sql.SQLException: ORA-00911: invalid character
here is the modified code
sourceConnection = odiRef.getJDBCConnection("SRC")
sqlstring = sourceConnection.createStatement()
sqlstmt="update tab1 set tot_coll_amt = to_number('#lines') where load_audit_key=418507;"
result=sqlstring.executeUpdate(sqlstmt)
sourceConnection.close()
Any ideas
Edited by: Sunny on Dec 3, 2010 1:04 PM

Best Practice to fetch SQL Server data and Insert into Oracle Tables

Hello,
I want to read sqlserver data everry half an hour and write into oracle tables ( in two different databases). What is the best practice for doing this?
We do not have any database dblinks from oracle to sqlserver and vice versa.
Any help is highly appreciable?
Thanks

Well, that's easy:
use a TimerTask to do the following every half an hour:
- open a connection to sql server
- open two connections to the oracle databases
- for each row you read from the sql server, do the inserts into the oracle databases
- commit
- close all connections

Insert /delete data from SAP Z table to Oracle table and opposite

Hi,
Can u help me write this FM from the SAP side?
So, I have two tables ZTABLE in SAP and Oracle table ORAC.
Let's put three columns in each of them, for example
TEL1
TEL2
ADRESS
NAME
where TEL field is primary from ZTABLE to ORAC...
(in FM there shoud be abap code for writing data in ZTABLE after we press some pushbutton made in sap screen painter..)
for example, when we write new record in ZTABLE
00
112233
Street 4
Name1
this data shoud be inserted in Oracle table ORAC.
when we write new record in Oracle table for example
01
445566
New Street
Name2
this data shoud be inserted in ZTABLE.
Field TEL1 can be only of two values 01 or 02, other combination is not valid...
I must have all data from Oracle table ORAC in ZTABLE and opposite.
It should be the same scenario for DELETE...
And this communication should be online between sap and table in oracle database...
Can u help me from sap side? and give idea how to configure on oracle side??
Thanks a lot,
Nihad

I dont know if we can directly connect to a oracle database ( wait for the answers from others on this )
but in XI we have the JDBC adaptor to insert and retrieve data.
so for the outbound from SAP the flow can be something like this (with XI in landscape):
1) You have a screen to maintain a new entry / delete an entry
2) On save , this record gets saved or deleted from the Ztable in SAP
3)) In the same screen you can call a proxy class-method (generated using SPROXY transaction ) to send the record to XI.
4) XI to format it and insert into the oracle table
Mathews

XML file to Oracle Table

Hello friends,
Can you please help me with the following requirements?
I have a xml structure like this
<?xml version="1.0"?>
<data>
<var name="document">
<string>Sales Order</String>
</var>
<var name="results">
<recordset rowcount="2">
<field name="sales_num">
<string>12345</string>
<string>A0192</string>
</field>
<field name="ord_qty">
<string>10</string>
<string>50</string>
</field>
</recordset>
</var>
</data>
I have to read this xml file and copy the data to the Oracle table
Sales Table
CREATE TABLE SALES
SALES_NUM VARCHAR2(20 BYTE),
ORD_QTY NUMBER(4)
Expected Result
x. Sales Num Ord Qty
1. 12345 10
2. A0192 50
I tried to follow the approach provided in this link http://www.oracle-base.com/articles/9i/ParseXMLDocuments9i.php . But it doesn't work with the XML structure I have.
Thanks,
Mahesh

please let me know the solution as well. i need this

Upload data from excel to oracle table

Hi,
if i'm user and using an application and i want to upload data from excel to oracle table on button click . Is it possible by using sql loader.
If yes then please clarify it .
is it possible from client end.
thanks
kam

Yes it is possible using SQL*LDR, External tables and ORCL Export Utility. Though I didn't try Export Utility to load the external files.
SQLLdr sysntax:
Create a control file.
It looks like this
Load data
Infile 'source.dat'
Into Table tablename
Fields terminated by ',' optionally enclosed by '"'
{code}
then use sqlldr command from your OS.
{code}
sqlldr userid/password@sid control = filename.ctl, data = source.dat, log = logname.log, bad = badname.log, discard = discardname.discard
{code}

Upload data from excel file to Oracle table

Dear All,
I have to upload data from excel file to Oracle table without using third party tools and without converting into CSV file.
Could you tell me please how can i do this using PLSQl or SQL Loader.
Thnaks in Advance..

Dear All,
I have to upload data from excel file to
Oracle table without using third party tools and
without converting into CSV file.
Could you tell me please how can i do this
using PLSQl or SQL Loader.
Thnaks in Advance..As billy mentioned using ODBC interface ,the same HS service which is a layer over using traditional ODBC to access non oracle database.Here is link you can hit and trial and come out here if you have any problem.
http://www.oracle-base.com/articles/9i/HSGenericConnectivity9i.php[pre]
Khurram

Fields missing in Oracles tables created by Infospokes

Hi S.A.P Gurus!
My problem is as follows:
We have created Infopokes with Oracle table as destination.
Even though, the transport to other systems is correct, and the infospoke have all the fields, when we execute it, some fields are missing in the destination (oracle table), and they should appear.
Does anyone know what we could do to avoid this problem?
Thanks in advance!
Kind regards.

Hi Raul,
Was just going through your thread ..and found that you were able to transfer the data to the oracle table.
I am aslo working on infospoke where I have to transfer the data from my Infoobject to a table in Oracle.
For that i have created a infospoke and executed it to get the data in the another tabel in sap.
The problem is that I dnt know how to move the data from this table in SAP to oracle table . Did u used any interface for this or any kind of ABAP programming that you have done.
Please suggest how this can be implemented.
I have open up a thread for this InfoSpokes InfoSpokes
Reward Points will be awarded.
Best Regards
Ankit Bhandari

How to load date and time from text file to oracle table through sqlloader

hi friends
i need you to show me what i miss to load date and time from text file to oracle table through sqlloader
this is my data in this path (c:\external\my_data.txt)
7369,SMITH,17-NOV-81,09:14:04,CLERK,20
7499,ALLEN,01-MAY-81,17:06:08,SALESMAN,30
7521,WARD,09-JUN-81,17:06:30,SALESMAN,30
7566,JONES,02-APR-81,09:24:10,MANAGER,20
7654,MARTIN,28-SEP-81,17:24:10,SALESMAN,30my table in database emp2
create table emp2 (empno number,
                  ename varchar2(20),
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                  etime date,
                  ejob varchar2(20),
                  deptno number);the control file code in this path (c:\external\ctrl.ctl)
load data
infile 'C:\external\my_data.txt'
into table emp2
fields terminated by ','
(empno, ename, hiredate, etime, ejob, deptno)this is the error :
C:\>sqlldr scott/tiger control=C:\external\ctrl.ctl
SQL*Loader: Release 10.2.0.1.0 - Production on Mon May 31 09:45:10 2010
Copyright (c) 1982, 2005, Oracle. All rights reserved.
Commit point reached - logical record count 5
C:\>any help i greatly appreciated
thanks
Edited by: user10947262 on May 31, 2010 9:47 AM

load data
infile 'C:\external\my_data.txt'
into table emp2
fields terminated by ','
(empno, ename, hiredate, etime, ejob, deptno)Try
load data
infile 'C:\external\my_data.txt'
into table emp2
fields terminated by ','
(empno, ename, hiredate, etime "to_date(:etime,'hh24:mi:ss')", ejob, deptno)
this is the error :
C:\>sqlldr scott/tiger control=C:\external\ctrl.ctl
SQL*Loader: Release 10.2.0.1.0 - Production on Mon May 31 09:45:10 2010
Copyright (c) 1982, 2005, Oracle. All rights reserved.
Commit point reached - logical record count 5
C:\>
That's not an error, you can see errors within log and bad files.

Using OleDbDataAdapter Update with InsertCommands and getting blocking locks on Oracle table

The following code snippet shows the use of OleDbDataAdapter with InsertCommands. This code is producing many inserts on the Oracle table and is now suffering from contention... all on the same table. How does the OleDbDataAdapter produce
inserts from a dataset... what characteristics do these inserts inherent in terms of batch behavior... or do they naturally contend for the same resource.
oc.Open();
for (int i = 0; i < xImageId.Count; i++)
// Create the oracle adapter using a SQL which will not return any actual rows just the structure
OleDbDataAdapter da =
   new OleDbDataAdapter("SELECT BUSINESS_UNIT, INVOICE, ASSIGNMENT_ID, END_DT, RI_TIMECARD_ID, IMAGE_ID, FILENAME, BARCODE_LABEL_ID, " +
   "DIRECT_INVOICING, EXCLUDE_FLG, DTTM_CREATED, DTTM_MODIFIED, IMAGE_DATA, PROCESS_INSTANCE FROM sysadm.PS_RI_INV_PDF_MERG WHERE 1 = 2", oc);
// Create a data set
DataSet ds = new DataSet("documents");
da.Fill(ds, "documents");
// Loop through invoices and write to oracle
string[] sInvoices = invoiceNumber.Split(',');
foreach (string sInvoice in sInvoices)
    // Create a data set row
    DataRow dr = ds.Tables["documents"].NewRow();
    ... map the data
    // Populate the dataset
    ds.Tables["documents"].Rows.Add(dr);
// Create the insert command
string insertCommandText =
    "INSERT /*+ append */ INTO PS_table " +
    "(SEQ_NBR, BUSINESS_UNIT, INVOICE, ASSIGNMENT_ID, END_DT, RI_TIMECARD_ID, IMAGE_ID, FILENAME, BARCODE_LABEL_ID, DIRECT_INVOICING, " +
    "EXCLUDE_FLG, DTTM_CREATED, DTTM_MODIFIED, IMAGE_DATA, PROCESS_INSTANCE) " +
    "VALUES (INV.nextval, :BUSINESS_UNIT, :INVOICE, :ASSIGNMENT_ID, :END_DT, :RI_TIMECARD_ID, :IMAGE_ID, :FILENAME, " +
    ":BARCODE_LABEL_ID, :DIRECT_INVOICING, :EXCLUDE_FLG, :DTTM_CREATED, :DTTM_MODIFIED, :IMAGE_DATA, :PROCESS_INSTANCE)";
// Add the insert command to the data adapter
da.InsertCommand = new OleDbCommand(insertCommandText);
da.InsertCommand.Connection = oc;
// Add the params to the insert
da.InsertCommand.Parameters.Add(":BUSINESS_UNIT", OleDbType.VarChar, 5, "BUSINESS_UNIT");
da.InsertCommand.Parameters.Add(":INVOICE", OleDbType.VarChar, 22, "INVOICE");
da.InsertCommand.Parameters.Add(":ASSIGNMENT_ID", OleDbType.VarChar, 15, "ASSIGNMENT_ID");
da.InsertCommand.Parameters.Add(":END_DT", OleDbType.Date, 0, "END_DT");
da.InsertCommand.Parameters.Add(":RI_TIMECARD_ID", OleDbType.VarChar, 10, "RI_TIMECARD_ID");
da.InsertCommand.Parameters.Add(":IMAGE_ID", OleDbType.VarChar, 8, "IMAGE_ID");
da.InsertCommand.Parameters.Add(":FILENAME", OleDbType.VarChar, 80, "FILENAME");
da.InsertCommand.Parameters.Add(":BARCODE_LABEL_ID", OleDbType.VarChar, 18, "BARCODE_LABEL_ID");
da.InsertCommand.Parameters.Add(":DIRECT_INVOICING", OleDbType.VarChar, 1, "DIRECT_INVOICING");
da.InsertCommand.Parameters.Add(":EXCLUDE_FLG", OleDbType.VarChar, 1, "EXCLUDE_FLG");
da.InsertCommand.Parameters.Add(":DTTM_CREATED", OleDbType.Date, 0, "DTTM_CREATED");
da.InsertCommand.Parameters.Add(":DTTM_MODIFIED", OleDbType.Date, 0, "DTTM_MODIFIED");
da.InsertCommand.Parameters.Add(":IMAGE_DATA", OleDbType.Binary, System.Convert.ToInt32(filedata.Length), "IMAGE_DATA");
da.InsertCommand.Parameters.Add(":PROCESS_INSTANCE", OleDbType.VarChar, 10, "PROCESS_INSTANCE");
// Update the table
da.Update(ds, "documents");

Here is what Oracle is showing as blocking locks and the SQL that has been identified with each of the SIDS. Not sure why there is contention. There are no triggers or joined tables in this piece of code.
Here is the SQL all of the SIDs below are running:
INSERT INTO sysadm.PS_RI_INV_PDF_MERG (SEQ_NBR, BUSINESS_UNIT, INVOICE, ASSIGNMENT_ID, END_DT, RI_TIMECARD_ID, IMAGE_ID, FILENAME, BARCODE_LABEL_ID, DIRECT_INVOICING, EXCLUDE_FLG, DTTM_CREATED, DTTM_MODIFIED, IMAGE_DATA, PROCESS_INSTANCE) VALUES (SYSADM.INV_PDF_MERG.nextval,
:BUSINESS_UNIT, :INVOICE, :ASSIGNMENT_ID, :END_DT, :RI_TIMECARD_ID, :IMAGE_ID, :FILENAME, :BARCODE_LABEL_ID, :DIRECT_INVOICING, :EXCLUDE_FLG, :DTTM_CREATED, :DTTM_MODIFIED, :IMAGE_DATA, :PROCESS_INSTANCE)
SID 1452 (BTSUSER,BIZTPRDI,BTSNTSvc64.exe) in instance FSLX1 is blocking SID 1150 (BTSUSER,BIZTPRDI,BTSNTSvc64.exe) in instance FSLX1
SID 1452 (BTSUSER,BIZTPRDI,BTSNTSvc64.exe) in instance FSLX1 is blocking SID 1452 (BTSUSER,BIZTPRDI,BTSNTSvc64.exe) in instance FSLX1
SID 1452 (BTSUSER,BIZTPRDI,BTSNTSvc64.exe) in instance FSLX1 is blocking SID 1156 (BTSUSER,biztprdi,BTSNTSvc64.exe) in instance FSLX3
SID 1452 (BTSUSER,BIZTPRDI,BTSNTSvc64.exe) in instance FSLX1 is blocking SID 6 (BTSUSER,BIZTPRDI,BTSNTSvc64.exe) in instance FSLX2
SID 1452 (BTSUSER,BIZTPRDI,BTSNTSvc64.exe) in instance FSLX1 is blocking SID 1726 (BTSUSER,BIZTPRDI,BTSNTSvc64.exe) in instance FSLX2
SID 1452 (BTSUSER,BIZTPRDI,BTSNTSvc64.exe) in instance FSLX1 is blocking SID 2016 (BTSUSER,biztprdi,BTSNTSvc64.exe) in instance FSLX2

How to use Oracle Table Type values in Select Statement.

Hi,
I am fetching initial set of values into Oracle Table of Records Type and want to use list of values in the Select statement.
For example, try something like the following:
TYPE t_record IS RECORD (
ID TABLEA.ID%type,
NO TABLEA.NO%type,
v_record t_record;
TYPE t_table IS TABLE OF v_record%TYPE;
v_table t_table;
-- Code to populate the values in v_table here.
SELEC ID,NO, BULK COLLECT INTO <some other table variabes here> FROM TABLEA
WHERE ID IN v_table(i).ID;
I want to know how to use the values from Oracle Table Type in the Select Statement.

Something like this:
create or replace type t_record as object (
id number,
no number
CREATE or replace type t_table AS TABLE OF t_record;
set serveroutput on
declare
v_table t_table := t_table();
v_t1 t_table := t_table();
begin
v_table.extend(1);
v_table(1).ID := 1;
v_table(1).No := 10;
v_table.extend(1);
v_table(2).ID := 2;
v_table(2).ID := 20;
SELEC t_record (ID,NO) BULK COLLECT INTO v_t1
from TableA
FROM TABLEA
WHERE ID IN (select t.ID from table(v_Table) t);
for i in 1..v_t1.count loop
dbms_output.put_line(v_t1(i).ID);
dbms_output.put_line(v_t1(i).No);
end loop;
end;
/Untested!
P;
Edited by: bluefrog on Mar 5, 2010 5:08 PM

How can i pass calculated value to internal table

Hi
i have to pass calculated value into internal table
below field are coming from database view and i' m passing view data into iznew1
fields of iznew1
             LIFNR LIKE EKKO-LIFNR,
             EBELN LIKE EKKO-EBELN,
             VGABE LIKE EKBE-VGABE,
             EBELP LIKE EKBE-EBELP,
             BELNR LIKE EKBE-BELNR,
             MATNR LIKE EKPO-MATNR,
             TXZ01 LIKE EKPO-TXZ01,
        PS_PSP_PNR LIKE EKKN-PS_PSP_PNR,
             KOSTL LIKE EKKN-KOSTL,
             NAME1 LIKE LFA1-NAME1,
             NAME2 LIKE LFA1-NAME2,
             WERKS LIKE EKPO-WERKS,
             NETWR LIKE EKPO-NETWR,
             KNUMV LIKE EKKO-KNUMV,
             GJAHR LIKE EKBE-GJAHR,
and now i want to pass
one field ED1 which i has calculated separatly and i want to pass this value into iznew1
but error is coming that iznew1 is a table with out header line has no component like ED1.
so how can i pass calculated value to internal table iznew1,

When you declare your internal table , make an addtion occurs 0
eg . data : begin of iznew occurs 0 ,
                fields ...
   add the field here ed1.
           end of iznew.
now when you are calculating the value of ed1,
you can pass the corresponding value of ed1 and modify table iznew.
eg
loop at iznew.
iznew-ed1 = ed1.
modify iznew.
endloop.

Calculating rowlength of oracle table

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