SQL Statement using Undo Tablespace

Hi
Is there a way to find out which SQL Statement is using the highest amount of Undo Tablespace ?

Query v$undostat.
Use column "MAXQUERYID" for identgifying long running queries.
Refer Metalink Note 262066.1 for undo information.
Regards
Sethu

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Execute Dynamic SQL statement using procedure builder

i want to execute a dynamic SQL statment using procedure builder not using forms
because my statement depending on a variable table name
i know that i can do that from forms using
FORMS_DDL('SQL_STAT');
but i wanna to use the procedure builder
which function i should use and how?
please explain in example if you don't mind.
thanks

Hi,
You can very well use DBMS_SQL Package supplied by Oracle for doing this.
Search for DBMS_SQL in OTN. You will get all info regarding this.
Regards.
<BLOCKQUOTE><font size="1" face="Verdana, Arial, Helvetica">quote:</font><HR>Originally posted by itslul:
i want to execute a dynamic SQL statment using procedure builder not using forms
because my statement depending on a variable table name
i know that i can do that from forms using
FORMS_DDL('SQL_STAT');
but i wanna to use the procedure builder
which function i should use and how?
please explain in example if you don't mind.
thanks<HR></BLOCKQUOTE>
null

Date formats for SQL statements used by recordset object

Hi,
Date formatting appears to be quite problematic for Business One. I did a forum search for date issues and I don't think I saw any of them with an "answered" status. I have an issue with formatting a date for the creation of an SQL statement that the DI sends to SQL Server 2005. I need to format a date so that the localization parameters don't matter for either the client machine or SQL Server's machine. We don't have a problem as long as our machines are localized as USA.
I have PL 22 and I have a form - ours - where I use the Today() function to fill a date field. So this is a date that is not entered by the user. The result of this function is consistent with the localization parameters on my machine. We have two other date fields on the form where the user must type in the date.
As a test, I changed my machine to the UK parameters. I then set up the language parameters of Business One for English(United Kingdom). I changed the date format specifications in Business One so that its format is dd/mm/yy. I then brought up the form and the field that is formatted by the above function arrived in the form's field as dd/mm/yy. I then typed in the two other dates in the same format and added the record to the database. The form's table is user-defined.
I dismissed the form then brought it back up loaded with the new record. The date that was entered by the function appeared in USA format (mm/dd/yy). The dates that were typed in appeared in the Business One format (dd/mm/yy). This of course is not consistent.
When I looked at what got into the database, the formats were the opposite. Weird! To make matters really confusing, I run an SQL statement within SQL Server Mgt Studio, and use the WHERE clause to filter on the date that was based on the function. It didnt matter what format I used for the WHERE clause, the record came up. Does anyone have any idea about how I can ensure that I always use the correct date format for SQL statements passed by Business One to SQL Server regardless of where in the world the application is being run?
Thanks,
Mike

Ian,
Here's what I'm concerned about: Im using the date in a WHERE clause.
Assume the date is Aug 3, 2007.
"SELECT * FROM Table WHERE StartDate > 8/3/2007"
OR
"SELECT * FROM Table WHERE StartDate > 3/8/2007"
If the client machine is set up as USA, the today function will provide the date as formatted in the first query. If the database server is setup as lets say the UK, I believe that SQL Server query parser will interpret the date as Mar 8, 2007.
If the client machine is set up as UK, the today function will provide the date as formatted in the second query. If the database server is setup as lets say USA, I believe that SQL Server query parser will also interpret the date as Mar 8, 2007.
In both cases it would be wrong.
I know I could use the DATEPART function to get the three parts and this will make the code indifferent to the localization specs of the client machine. I need to then be able to concatenate those date parts for the WHERE clause so that the localization specifications of the database server dont matter.
Thanks,
Mike

Rollback segments using UNDO Tablespace?

First, I created a database for a vendor with an Undo Tablespace UNDOTBS. Then the vendor requested me to create rollback segments instead. So I created a new tablespace RBSTBS just to hold these segments. When I tried to create the rollback segment using the newly created tablespace RBSTBS, it complained that I am not allowed to use non-system tablespaces.
So instead, I used the Undo tablespace UNDOTBS to hold the rollback segment. It worked.
Am I really allowed to use the UNDO tablespace to hold rollback segments? Can't I use normal tablespaces for rollback segments?
Another thing, the vendor wanted me to create rollback segments of 200MB each. Where do I set this while creating the rollback segment? Is this the INITIAL, NEXT, or OPTIMAL size?
I know that Oracle recommends using UNDO rather than rollback segments. Is there any advantage in using traditional rollback segments?
Thanks for any help!

Advantage with rollback segment is you can force your transaction to use any specific rollback segment, where as with undo you don't have any control. Oracle does it for us.
Thanks and Regards,
Satheesh Babu.S
Bangalore.

Buffer size for SQL statement using JDBC calls

I need to find out the buffer size for SQL statements in jave/JDBC because I need to insert or update a field that could be up to 4KB in size.

I'm not sure that I follow the question; I'm not sure which buffer size you're referring to.
If you have a field that can store up to 4k worth of data, you would create a VARCHAR2(4000) column in the Oracle database (assuming it is character data) or a BLOB column (if the data is binary). Either of those two fields can be populated from JDBC.
Justin
Distributed Database Consulting, Inc.
http://www.ddbcinc.com/askDDBC

High-load sql statement using v$sql

Hi,
Can any one please tell me, how do we find high load sql statement and it's user from v$SQL view.
what is the query to find it.
Thank you!

Hello,
You can run ADDM report and check its findings it will tell you tome stuff like the following:
     Finding
67      SQL statements consuming significant database time were found.
40.7      Time spent on the CPU by the instance was responsible for a substantial part of database time.
20.7      Individual SQL statements responsible for significant user I/O wait were found.
13.7      Individual database segments responsible for significant user I/O wait were found.Kind regards
Mohamed Elazab

SQL statement using result of aggregate min function to fetch a row - how?

Need help trying to get to something seemingly simple. I'll provide a simple example to illustrate the problem.
I'll be using a simple addresses table with 4 fields.
Create the table:
CREATE TABLE "ADDRESSES"
   (     "OWNER_NAME" VARCHAR2(20 BYTE),
     "STREET_NAME" VARCHAR2(20 BYTE),
     "STREET_NUMBER" NUMBER
   ) ;populate with 6 rows
Insert into ADDRESSES (OWNER_NAME,STREET_NAME,STREET_NUMBER) values ('FRED','MAIN',1);
Insert into ADDRESSES (OWNER_NAME,STREET_NAME,STREET_NUMBER) values ('JOAN','MAIN',2);
Insert into ADDRESSES (OWNER_NAME,STREET_NAME,STREET_NUMBER) values ('JEAN','MAIN',3);
Insert into ADDRESSES (OWNER_NAME,STREET_NAME,STREET_NUMBER) values ('JACK','ELM',1);
Insert into ADDRESSES (OWNER_NAME,STREET_NAME,STREET_NUMBER) values ('JANE','ELM',2);
Insert into ADDRESSES (OWNER_NAME,STREET_NAME,STREET_NUMBER) values ('JEFF','ELM',3);We now have this:
Select * from addresses
OWNER_NAME           STREET_NAME          STREET_NUMBER
FRED                 MAIN                 1
JOAN                 MAIN                 2
JEAN                 MAIN                 3
JACK                 ELM                  1
JANE                 ELM                  2
JEFF                 ELM                  3
6 rows selectedNow i wish to group by StreetName, and get a count of houses. At the same time, i'd like to know the first and last house number
    select
    street_name,
    count(*) "NBR HOUSES",
    min(street_number) "First Number",
    max(street_number) "Last Number"
     from addresses
    group by street_name
produces
STREET_NAME          NBR HOUSES             First Number           Last Number
ELM                  3                      1                      3
MAIN                 3                      1                      3
2 rows selectedExcellent. Now for the problem. I wish to also list on each line, the owner that lives at the first and/or last house number. Note again, assume that house number and street name is unique
It would seem i have all that i need. Not sure how to get at it.
I tried:
select
    street_name,
    count(*) "NBR HOUSES",
    min(street_number) "First Number",
    max(street_number) "Last Number",
    (Select b.owner_name from addresses b where b.street_number = min(street_number) and b.owner_name = owner_name) "First Owner"
     from addresses
    group by street_nameBut get a sql syntax error, group function not allowed when i add the subselect.
any ideas?
thanks for any help.
Edited by: user6876601 on Nov 19, 2009 7:08 PM
Edited by: user6876601 on Nov 19, 2009 7:30 PM

Hi,
Welcome to the forum!
Getting the highest and lowest number for each street is a fairly simple concept; simpler to describe, and simple to code.
Now you want the owner_name associated with the highest and lowest number, which is a more complicated concept; a little harder to describe, and, unfortunately, much less simple to code, and much, much harder to explain:
select
    street_name,
    count (*)                "NBR HOUSES",
    min (street_number)      "First Number",
    min (owner_name) KEEP (DENSE_RANK FIRST ORDER BY street_number)
                    "First Owner",
    max (street_number)      "Last Number",
    min (owner_name) KEEP (DENSE_RANK LAST ORDER BY street_number)
                    "Last Owner"
     from addresses
    group by street_name
;Notice that I used min for both "First Owner" and "Last Owner". Why is that?
The important keyword in these funtions is the word FIRST or LAST that comes after DENSE_RANK and before ORDER BY. The function at the beginning is merely a tie-breaker.
That is, MIN in this context only refers to what should happen when there is a tie for the first or last in the group. Even if such a thing is impossibe in your data, the generic functions have to have some mechanism for returning a single owner_name when two or more rows have an equal claim to having the highest street_number. For example, if we change Joan's address to 1 Main, then MIN (street_number) is still 1, obviously, but who is the person associated with the minimum street_number: is it Fred or Joan? Both have an equal claim to being the owner with the lowest address on Main Street, but aggregate functions must return a single value, so we have to have some mechanism for tell the system whether to return 'JOAN' or 'FRED'. In this example, I arbitrarily said that in the een of a tie, the lowest name, in alphabetic order, should be returned. In this case, 'FRED' would be returned, since 'FRED' is earlier than 'JOAN' .
Thanks for including the CREATE TABLE and INSERT statements!

How to dynamically execute generated SQL statements using 11gR2 ?

Hello,
I'd like to know if it is possible to do what the following statement intended to do:
select * from (select replace('select empno from emp',
                             '') from dual);in other words, is it possible to dynamically generate and execute a select statement in a from clause ?
thank you for your help,
John
Edited by: 440bx on Jul 16, 2010 3:57 PM changed "generate" to "generated" in subject

Hello Aketi,
That is totally WICKED !!
I've been playing with the code you posted, pretty much since you did, trying to figure out how it works. I have some idea of how it works now but, I cannot figure out why I get the set of results, not once but TWICE.
When I run the query you posted above, this is what I get:
SQL> @getxml2
TABLE_NAME                          count
CLOB_EXAMPLE                            1
D42                                     1
DEPT                                    4
DEPT_2                                  0
DEPT_ACCIDENTS                          6
DEPT_EAST                               2
... some tables deleted to shorten the output
T1                                      1
T10                                    10
T100                                    0
22 rows selected.
TABLE_NAME                          count
CLOB_EXAMPLE                            1
D42                                     1
DEPT                                    4
DEPT_2                                  0
DEPT_ACCIDENTS                          6
DEPT_EAST                               2
... some tables deleted to shorten the output
T1                                      1
T10                                    10
T100                                    0
22 rows selected.
SQL>The result is shown TWICE. I cannot figure out why. Any ideas as to why the result is shown twice ? (I ran the statement from SQL*Plus and started a fresh instance of SQL*Plus to ensure that no settings from previous scripts would be the cause).
Thank you for your help, great little piece of code!
John.
Edited by: 440bx on Jul 16, 2010 5:30 PM
Edited by: 440bx on Jul 16, 2010 5:31 PM - corrected name in Hello greeting
Edited by: 440bx - 11gR2 on Jul 17, 2010 2:55 AM - corrected misspelling
Edited by: 440bx - 11gR2 on Jul 17, 2010 2:56 AM - corrected another misspelling

Performance Issie in SQL Statement Using Hints

Hi,
I am using Oracle version 10G.
I am using a INSERT statement as:
INSERT /*+ PARALLEL (TEST,4) */ INTO TEST(COL1,COL2,COL3) SELECT COL1,COL2,COL3 FROM DUMMY;
For increasing the Performance I am using the above statement.
Will the usage of Hints increase the Performance?
Any help will be highly needful.
Thanks and Regards

user598986 wrote:
I am using Oracle version 10G.
I am using a INSERT statement as:
INSERT /*+ PARALLEL (TEST,4) */ INTO TEST(COL1,COL2,COL3) SELECT COL1,COL2,COL3 FROM DUMMY;
For increasing the Performance I am using the above statement.
Will the usage of Hints increase the Performance?The way you're asking the question suggests that you're not sure what this particular hint is supposed to imply.
Using this hint suggests that you want to take advantage of direct-path parallel DML operations. Note that you explicitly need to enable parallel DML in your session, it is disabled by default, because it has some significant implications and restrictions. You should think about parallelizing the query on DUMMY, too, if it is not marked as PARALLEL in the dictionary, because otherwise you're combining a parallel DML operation with a serial query which might not be that efficient.
Note that there is no general answer to the question if this particular hint will actually increase the performance of the DML statement. There are many things to consider, among them are if your system scales reasonably with parallel operations and if the underlying object structure actually allows to benefit from the parallel operation. There are cases where a serial operation might be faster than a parallel operation.
For more information about direct-path and parallel execution, its implications and restrictions, see the documentation:
http://download.oracle.com/docs/cd/B28359_01/server.111/b28286/statements_9014.htm#i2163698
http://download.oracle.com/docs/cd/B28359_01/server.111/b28313/usingpe.htm#CACEJACE
You can use the EXPLAIN PLAN and the DBMS_XPLAN.DISPLAY function to get the execution plan of your statement that shows you what kind of parallel operations the optimizer estimates to perform.
Regards,
Randolf
Oracle related stuff blog:
http://oracle-randolf.blogspot.com/
SQLTools++ for Oracle (Open source Oracle GUI for Windows):
http://www.sqltools-plusplus.org:7676/
http://sourceforge.net/projects/sqlt-pp/

How to monitor perticuler sql statement using the INDEX or not?

I am running on a long running quary, and the output is comming very late. So i want to know the sql quary is using the index or not? How to know that?

If you want to check the real execution plan of a running query without waiting for query completion, you can try following steps that you should adapt to your query and your environment:
1. start the query
select
count(*)
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select sql_id, child_number, sql_text
from v$sql
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Edited by: P. Forstmann on 2 mars 2011 10:23

SQL Statement using LIKE and Subquery?

Hi,
I have two tables, one table is called "Restricted_Words", the other table is called "Content" . I have a field called "short_desc" in the Content table and a field called "word" in the Restricted Words
table.
I want to write a query that will compare all the words in the restricted words table against the short_desc field in the content table and just return all the records in the content table that contain 1 or more of these words.
I started with this:
SELECT short_desc
FROM Content
WHERE short_desc LIKE ( SELECT word FROM Restricted_Words )
I know the above isn't valid and won't work, but that's what I'm trying to do.
Any help appreciated...

Sorry cannot test it right now...
SELECT short_desc
FROM Content
WHERE short_desc LIKE ( SELECT word FROM Restricted_Words where
word like '%'+short_desc
+'%' )
Best Regards,Uri Dimant SQL Server MVP,
http://sqlblog.com/blogs/uri_dimant/
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Hi
Before inserting SET DEFINE OFF.
raja

Execution of SQL statement 'alter tablespace PSAPSR3

Dear mastah,
I trying extend tablesapce at oracle, but not succesfully, and have problem,
maybe can help this issue..
error problem add tablespace:
BR0280I BRSPACE time stamp: 2014-01-06 10.27.31
BR0370I Directory /oracle/SID/sapreorg/semxnacf created
BR0280I BRSPACE time stamp: 2014-01-06 10.27.32
BR0319I Control file copy created: /oracle/SID/sapreorg/semxnacf/cntrlSID.old 99106816
BR0280I BRSPACE time stamp: 2014-01-06 10.27.32
BR1088I Extending tablespace PSAPSR3...
BR0280I BRSPACE time stamp: 2014-01-06 10.27.51
BR0301E SQL error -59 at location BrSqlExecute-1, SQL statement:
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ORA-00059: maximum number of DB_FILES exceeded
BR1017E Execution of SQL statement 'alter tablespace PSAPSR3 add datafile '/oracle/SID/sapdata16/sr3_218/sr3.data218' size 4000M autoextend off' failed
BR0669I Cannot continue due to previous warnings or errors - you can go back to repeat the last action
BR0280I BRSPACE time stamp: 2014-01-06 10.27.51
BR0671I Enter 'b[ack]' to go back, 's[top]' to abort:
regards,
amin

BR1088I Extending tablespace PSAPSR3...
BR0280I BRSPACE time stamp: 2014-01-06 10.27.51
BR0301E SQL error -59 at location BrSqlExecute-1, SQL statement:
'/* BRSPACE */ alter tablespace PSAPSR3 add datafile '/oracle/SID/sapdata16/sr3_218/sr3.data218' size 4000M autoextend off'
ORA-00059: maximum number of DB_FILES exceeded
$ oerr ora 59
00059, 00000, "maximum number of DB_FILES exceeded"
// *Cause: The value of the DB_FILES initialization parameter was exceeded.
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$

How to estimate undo tablespace size in 11g?

I found someone document said, use this sql to estimate undo tablespace:
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Thanks very much!

for undo segments size you should turn it to be autoextend on as well undo management set to be AUTO
i.e
undo_managment='AUTO'
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BTW as hemant stated leave it to be auto which is good approach but make sure enough space on disk has been
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Khurram

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In order to make a SQL use consistent execution plan, I want to create a profile for a SQL. But I need to know if a SQL is using bind variable or not to create a profile for all the same SQLs except the literal value. How can I do that?
Thanks in advance

You can tell if an SQL statement uses a bind variable by looking at the SQL statement.
If you look in the program that submits the SQL statement you can see how it constructs, prepares, and executes the statement.
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