How to find / check database / query bottleneck ?

Hi all,
We are going live with ADF application on Oracle 10g R1(on Redhat Linux ES 4 Update 2 64 bit). We are focusing on performance issue. Certainly there are two layers to concern about : Database & Oracle Apps Server (OAS 10.1.3.1).
Could anybody please give information :
- what to check on database layer to make sure that there is no bottleneck on database side ?
- How to find the query that cost alot of overhead on server ?
Thank you very much,
xtanto

Sessionwise if you wanna see means use v$session.. Because it will show execution time also so you can analyze it easily and get sql based on SID and serial number ..
Try :
select * from v$session;
Regards..

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How to find last executed query on database and or schema.

hi,
how to find last executed query on database and or schema.
yours sincerely

Sessionwise if you wanna see means use v$session.. Because it will show execution time also so you can analyze it easily and get sql based on SID and serial number ..
Try :
select * from v$session;
Regards..

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hi all,
how to find if the query I am running is triggering any Update trigger?
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Hi,
but if fine grained auditing is implemented in the DB, (DBMS_FGA) then creation of Update Trigger on SELECTs is a possibility. Which Version are you using??
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Message was edited by:
user570368

ADF: How to find out which query has taken what time?

Hi,
I have an ADF application which has many SQL queried running on each button click/page load, so how to find out which query is taking what amount of time? So that i can identify the long running queries and modify them to improve the application performance.
Thanks in advance.

Hi,
As suggested by Timo,you need to start tracing on oracle.jbo package for getting the SQL queries.But I think the second option suggested by him would be better.You will have to override executeQueryForCollection method in VO Impl class .Pseudo code would be
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Hi Gurus ,
How to find out the query is accessing the DB tables or not.
Where exactly we will find this information in SAP BW.
I know that this information we can find in ST03. But where exactly we will find the query information along with DB information?

Lakshmi
Activate BI Technical Content for Query analysis and run query against that.
Hope this helps
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sat

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Hi,
I have do some assignment settings .I know receiver query name ,but i don't know sender query name .
please suggest me how to find out sender query name .
is there any table /t-code ?
Thanks,
EDK.....

Hello,
If the receiver query is web report, then goto table RSBBSQUERY and in RONAM field put the web report name.
You will get the sender query UID in the field ELTUID.
Now take this UID and goto table RSRREPDIR and put this UID in COMPUID and you will get the query name.
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Hi,
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Can you mark the thread as Helpful and once marked the information can be reviewed by other customer for similar queries
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How to find the database growth rate?

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This is code authored by Richard Ding that will log database sizes to a table. If you run it every day, then you can go back and compare the database size differences day to day... week to week... month to month... and year over year. That is
how I forecast growth over time.
Note: There is a database name required that is local to your environment, so change [YOURDATABASENAME] to whatever local database you wish to use. I will also post the DDL to create the target table. Create that table in the database you
name in the stored procedure code and all should run fine.
USE [master]
GO
/****** Object: StoredProcedure [dbo].[sp_SDS] Script Date: 04/22/2015 09:32:53 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE PROCEDURE [dbo].[sp_SDS]
@TargetDatabase sysname = NULL, -- NULL: all dbs
@Level varchar(10) = 'Database', -- or "File"
@UpdateUsage bit = 0, -- default no update
@Unit char(2) = 'MB' -- Megabytes, Kilobytes or Gigabytes
AS
** author: Richard Ding
** date: 4/8/2008
** usage: list db size AND path w/o SUMmary
** test code: sp_SDS -- default behavior
** sp_SDS 'maAster'
** sp_SDS NULL, NULL, 0
** sp_SDS NULL, 'file', 1, 'GB'
** sp_SDS 'Test_snapshot', 'Database', 1
** sp_SDS 'Test', 'File', 0, 'kb'
** sp_SDS 'pfaids', 'Database', 0, 'gb'
** sp_SDS 'tempdb', NULL, 1, 'kb'
SET NOCOUNT ON;
IF @TargetDatabase IS NOT NULL AND DB_ID(@TargetDatabase) IS NULL
BEGIN
RAISERROR(15010, -1, -1, @TargetDatabase);
RETURN (-1)
END
IF OBJECT_ID('tempdb.dbo.##Tbl_CombinedInfo', 'U') IS NOT NULL
DROP TABLE dbo.##Tbl_CombinedInfo;
IF OBJECT_ID('tempdb.dbo.##Tbl_DbFileStats', 'U') IS NOT NULL
DROP TABLE dbo.##Tbl_DbFileStats;
IF OBJECT_ID('tempdb.dbo.##Tbl_ValidDbs', 'U') IS NOT NULL
DROP TABLE dbo.##Tbl_ValidDbs;
IF OBJECT_ID('tempdb.dbo.##Tbl_Logs', 'U') IS NOT NULL
DROP TABLE dbo.##Tbl_Logs;
CREATE TABLE dbo.##Tbl_CombinedInfo (
DatabaseName sysname NULL,
[type] VARCHAR(10) NULL,
LogicalName sysname NULL,
T dec(10, 2) NULL,
U dec(10, 2) NULL,
[U(%)] dec(5, 2) NULL,
F dec(10, 2) NULL,
[F(%)] dec(5, 2) NULL,
PhysicalName sysname NULL );
CREATE TABLE dbo.##Tbl_DbFileStats (
Id int identity,
DatabaseName sysname NULL,
FileId int NULL,
FileGroup int NULL,
TotalExtents bigint NULL,
UsedExtents bigint NULL,
Name sysname NULL,
FileName varchar(255) NULL );
CREATE TABLE dbo.##Tbl_ValidDbs (
Id int identity,
Dbname sysname NULL );
CREATE TABLE dbo.##Tbl_Logs (
DatabaseName sysname NULL,
LogSize dec (10, 2) NULL,
LogSpaceUsedPercent dec (5, 2) NULL,
Status int NULL );
DECLARE @Ver varchar(10),
@DatabaseName sysname,
@Ident_last int,
@String varchar(2000),
@BaseString varchar(2000);
SELECT @DatabaseName = '',
@Ident_last = 0,
@String = '',
@Ver = CASE WHEN @@VERSION LIKE '%9.0%' THEN 'SQL 2005'
WHEN @@VERSION LIKE '%8.0%' THEN 'SQL 2000'
WHEN @@VERSION LIKE '%10.0%' THEN 'SQL 2008'
WHEN @@VERSION LIKE '%11.0%' THEN 'SQL 2012'
WHEN @@VERSION LIKE '%12.0%' THEN 'SQL 2014'
END;
SELECT @BaseString =
' SELECT DB_NAME(), ' +
CASE WHEN @Ver = 'SQL 2000' THEN 'CASE WHEN status & 0x40 = 0x40 THEN ''Log'' ELSE ''Data'' END'
ELSE ' CASE type WHEN 0 THEN ''Data'' WHEN 1 THEN ''Log'' WHEN 4 THEN ''Full-text'' ELSE ''reserved'' END' END +
', name, ' +
CASE WHEN @Ver = 'SQL 2000' THEN 'filename' ELSE 'physical_name' END +
', size*8.0/1024.0 FROM ' +
CASE WHEN @Ver = 'SQL 2000' THEN 'sysfiles' ELSE 'sys.database_files' END +
' WHERE '
+ CASE WHEN @Ver = 'SQL 2000' THEN ' HAS_DBACCESS(DB_NAME()) = 1' ELSE 'state_desc = ''ONLINE''' END + '';
SELECT @String = 'INSERT INTO dbo.##Tbl_ValidDbs SELECT name FROM ' +
CASE WHEN @Ver = 'SQL 2000' THEN 'master.dbo.sysdatabases'
WHEN @Ver IN ('SQL 2005', 'SQL 2008', 'SQL 2012', 'SQL 2014') THEN 'master.sys.databases'
END + ' WHERE HAS_DBACCESS(name) = 1 ORDER BY name ASC';
EXEC (@String);
INSERT INTO dbo.##Tbl_Logs EXEC ('DBCC SQLPERF (LOGSPACE) WITH NO_INFOMSGS');
-- For data part
IF @TargetDatabase IS NOT NULL
BEGIN
SELECT @DatabaseName = @TargetDatabase;
IF @UpdateUsage <> 0 AND DATABASEPROPERTYEX (@DatabaseName,'Status') = 'ONLINE'
AND DATABASEPROPERTYEX (@DatabaseName, 'Updateability') <> 'READ_ONLY'
BEGIN
SELECT @String = 'USE [' + @DatabaseName + '] DBCC UPDATEUSAGE (0)';
PRINT '*** ' + @String + ' *** ';
EXEC (@String);
PRINT '';
END
SELECT @String = 'INSERT INTO dbo.##Tbl_CombinedInfo (DatabaseName, type, LogicalName, PhysicalName, T) ' + @BaseString;
INSERT INTO dbo.##Tbl_DbFileStats (FileId, FileGroup, TotalExtents, UsedExtents, Name, FileName)
EXEC ('USE [' + @DatabaseName + '] DBCC SHOWFILESTATS WITH NO_INFOMSGS');
EXEC ('USE [' + @DatabaseName + '] ' + @String);
UPDATE dbo.##Tbl_DbFileStats SET DatabaseName = @DatabaseName;
END
ELSE
BEGIN
WHILE 1 = 1
BEGIN
SELECT TOP 1 @DatabaseName = Dbname FROM dbo.##Tbl_ValidDbs WHERE Dbname > @DatabaseName ORDER BY Dbname ASC;
IF @@ROWCOUNT = 0
BREAK;
IF @UpdateUsage <> 0 AND DATABASEPROPERTYEX (@DatabaseName, 'Status') = 'ONLINE'
AND DATABASEPROPERTYEX (@DatabaseName, 'Updateability') <> 'READ_ONLY'
BEGIN
SELECT @String = 'DBCC UPDATEUSAGE (''' + @DatabaseName + ''') ';
PRINT '*** ' + @String + '*** ';
EXEC (@String);
PRINT '';
END
SELECT @Ident_last = ISNULL(MAX(Id), 0) FROM dbo.##Tbl_DbFileStats;
SELECT @String = 'INSERT INTO dbo.##Tbl_CombinedInfo (DatabaseName, type, LogicalName, PhysicalName, T) ' + @BaseString;
EXEC ('USE [' + @DatabaseName + '] ' + @String);
INSERT INTO dbo.##Tbl_DbFileStats (FileId, FileGroup, TotalExtents, UsedExtents, Name, FileName)
EXEC ('USE [' + @DatabaseName + '] DBCC SHOWFILESTATS WITH NO_INFOMSGS');
UPDATE dbo.##Tbl_DbFileStats SET DatabaseName = @DatabaseName WHERE Id BETWEEN @Ident_last + 1 AND @@IDENTITY;
END
END
-- set used size for data files, do not change total obtained from sys.database_files as it has for log files
UPDATE dbo.##Tbl_CombinedInfo
SET U = s.UsedExtents*8*8/1024.0
FROM dbo.##Tbl_CombinedInfo t JOIN dbo.##Tbl_DbFileStats s
ON t.LogicalName = s.Name AND s.DatabaseName = t.DatabaseName;
-- set used size and % values for log files:
UPDATE dbo.##Tbl_CombinedInfo
SET [U(%)] = LogSpaceUsedPercent,
U = T * LogSpaceUsedPercent/100.0
FROM dbo.##Tbl_CombinedInfo t JOIN dbo.##Tbl_Logs l
ON l.DatabaseName = t.DatabaseName
WHERE t.type = 'Log';
UPDATE dbo.##Tbl_CombinedInfo SET F = T - U, [U(%)] = U*100.0/T;
UPDATE dbo.##Tbl_CombinedInfo SET [F(%)] = F*100.0/T;
IF UPPER(ISNULL(@Level, 'DATABASE')) = 'FILE'
BEGIN
IF @Unit = 'KB'
UPDATE dbo.##Tbl_CombinedInfo
SET T = T * 1024, U = U * 1024, F = F * 1024;
IF @Unit = 'GB'
UPDATE dbo.##Tbl_CombinedInfo
SET T = T / 1024, U = U / 1024, F = F / 1024;
SELECT DatabaseName AS 'Database',
type AS 'Type',
LogicalName,
T AS 'Total',
U AS 'Used',
[U(%)] AS 'Used (%)',
F AS 'Free',
[F(%)] AS 'Free (%)',
PhysicalName
FROM dbo.##Tbl_CombinedInfo
WHERE DatabaseName LIKE ISNULL(@TargetDatabase, '%')
ORDER BY DatabaseName ASC, type ASC;
SELECT CASE WHEN @Unit = 'GB' THEN 'GB' WHEN @Unit = 'KB' THEN 'KB' ELSE 'MB' END AS 'SUM',
SUM (T) AS 'TOTAL', SUM (U) AS 'USED', SUM (F) AS 'FREE' FROM dbo.##Tbl_CombinedInfo;
END
IF UPPER(ISNULL(@Level, 'DATABASE')) = 'DATABASE'
BEGIN
DECLARE @Tbl_Final TABLE (
DatabaseName sysname NULL,
TOTAL dec (10, 2),
[=] char(1),
used dec (10, 2),
[used (%)] dec (5, 2),
[+] char(1),
free dec (10, 2),
[free (%)] dec (5, 2),
[==] char(2),
Data dec (10, 2),
Data_Used dec (10, 2),
[Data_Used (%)] dec (5, 2),
Data_Free dec (10, 2),
[Data_Free (%)] dec (5, 2),
[++] char(2),
Log dec (10, 2),
Log_Used dec (10, 2),
[Log_Used (%)] dec (5, 2),
Log_Free dec (10, 2),
[Log_Free (%)] dec (5, 2) );
INSERT INTO @Tbl_Final
SELECT x.DatabaseName,
x.Data + y.Log AS 'TOTAL',
'=' AS '=',
x.Data_Used + y.Log_Used AS 'U',
(x.Data_Used + y.Log_Used)*100.0 / (x.Data + y.Log) AS 'U(%)',
'+' AS '+',
x.Data_Free + y.Log_Free AS 'F',
(x.Data_Free + y.Log_Free)*100.0 / (x.Data + y.Log) AS 'F(%)',
'==' AS '==',
x.Data,
x.Data_Used,
x.Data_Used*100/x.Data AS 'D_U(%)',
x.Data_Free,
x.Data_Free*100/x.Data AS 'D_F(%)',
'++' AS '++',
y.Log,
y.Log_Used,
y.Log_Used*100/y.Log AS 'L_U(%)',
y.Log_Free,
y.Log_Free*100/y.Log AS 'L_F(%)'
FROM
( SELECT d.DatabaseName,
SUM(d.T) AS 'Data',
SUM(d.U) AS 'Data_Used',
SUM(d.F) AS 'Data_Free'
FROM dbo.##Tbl_CombinedInfo d WHERE d.type = 'Data' GROUP BY d.DatabaseName ) AS x
JOIN
( SELECT l.DatabaseName,
SUM(l.T) AS 'Log',
SUM(l.U) AS 'Log_Used',
SUM(l.F) AS 'Log_Free'
FROM dbo.##Tbl_CombinedInfo l WHERE l.type = 'Log' GROUP BY l.DatabaseName ) AS y
ON x.DatabaseName = y.DatabaseName;
IF @Unit = 'KB'
UPDATE @Tbl_Final SET TOTAL = TOTAL * 1024,
used = used * 1024,
free = free * 1024,
Data = Data * 1024,
Data_Used = Data_Used * 1024,
Data_Free = Data_Free * 1024,
Log = Log * 1024,
Log_Used = Log_Used * 1024,
Log_Free = Log_Free * 1024;
IF @Unit = 'GB'
UPDATE @Tbl_Final SET TOTAL = TOTAL / 1024,
used = used / 1024,
free = free / 1024,
Data = Data / 1024,
Data_Used = Data_Used / 1024,
Data_Free = Data_Free / 1024,
Log = Log / 1024,
Log_Used = Log_Used / 1024,
Log_Free = Log_Free / 1024;
DECLARE @GrantTotal dec(11, 2);
SELECT @GrantTotal = SUM(TOTAL) FROM @Tbl_Final;
INSERT INTO [YOURDATABASENAME].[dbo].[DBSize]
([Weight]
,[DBName]
,[Used]
,[Free]
,[Total]
,[Data]
,[Data_Used]
,[Log]
,[Log_Used]
,[DT])
SELECT
CONVERT(dec(10, 2), TOTAL*100.0/@GrantTotal) AS 'WEIGHT (%)',
DatabaseName AS 'DATABASE',
CONVERT(VARCHAR(12), used) AS 'USED',
CONVERT(VARCHAR(12), free) AS 'FREE',
TOTAL,
CONVERT(VARCHAR(12), Data) AS 'DATA',
CONVERT(VARCHAR(12), Data_Used) AS 'DATA_USED',
CONVERT(VARCHAR(12), Log) AS 'LOG',
CONVERT(VARCHAR(12), Log_Used) AS 'LOG_USED',
GETDATE()
FROM @Tbl_Final
WHERE DatabaseName LIKE ISNULL(@TargetDatabase, '%')
ORDER BY DatabaseName ASC;
IF @TargetDatabase IS NULL
SELECT CASE WHEN @Unit = 'GB' THEN 'GB' WHEN @Unit = 'KB' THEN 'KB' ELSE 'MB' END AS 'SUM',
SUM (used) AS 'USED',
SUM (free) AS 'FREE',
SUM (TOTAL) AS 'TOTAL',
SUM (Data) AS 'DATA',
SUM (Log) AS 'LOG'
FROM @Tbl_Final;
END
RETURN (0)
GO
USE [YOURDATABASENAME]
GO
/****** Object: Table [dbo].[DBSize] Script Date: 04/22/2015 09:49:10 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
SET ANSI_PADDING ON
GO
CREATE TABLE [dbo].[DBSize](
[UID] [int] IDENTITY(1,1) NOT NULL,
[Weight] [decimal](18, 2) NULL,
[DBName] [varchar](250) NULL,
[Used] [decimal](18, 2) NULL,
[Free] [decimal](18, 2) NULL,
[Total] [decimal](18, 2) NULL,
[Data] [decimal](18, 2) NULL,
[Data_Used] [decimal](18, 2) NULL,
[Log] [decimal](18, 2) NULL,
[Log_Used] [decimal](18, 2) NULL,
[DT] [datetime] NULL,
CONSTRAINT [PK_DBSize] PRIMARY KEY CLUSTERED
[UID] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]
GO
SET ANSI_PADDING OFF
GO

How to find last executed query

Hello,
I want to find the last executed query in the Oracle database.
Can anybody help me, how can I find last fired query.
I am using following query for it, but it gives me the same query as in the result.
SELECT SQL_TEXT FROM V$SQL
WHERE ADDRESS = (SELECT SQL_ADDRESS
FROM V$SESSION
WHERE AUDSID = USERENV('SESSIONID'))
Please help me.Thanks.

Hi,
select sa.sql_text,ss.username
from v$session ss, v$sqlarea sa
where sa.hash_value = ss.prev_hash_value
SQL> /
SQL_TEXT
USERNAME
DELETE FROM T
HR
GRANT SELECT ON T TO
HR
SELECT COUNT(*) FROM HR.T
SCOTT
SQL_TEXT
USERNAME
select sa.sql_text,ss.username from v$session ss, v$sqlarea sa where sa.hash_val
ue = ss.prev_hash_value
SYSregards
Taj
Message was edited by:
Mohammad Taj

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There is a scrren field customer
name1 (firt line under name)
and email id fields
i wnat to know where the data stores goes w hen user eners in this screen i mean in which table and how to find it
for kunnr name1 i suppose it goes to kna1 but how to find it?
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Hi,
when you press F1 it will give the necessary information
but some times it may give the structure names also
those structures are being used by the back end module pool
programm
so every time we can get the exact information about the
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but not sure that every time we get the exact database table name
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according to me, if i dont know where some field are getting stored in
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thanks & regards,
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Hi,
Please find the below links which would help you solving you problem,
SAP BW performance tunning : Includes screen shots
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/68fbb490-0201-0010-8eb5-f7e0adaff5bd
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https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/3f66ba90-0201-0010-ac8d-b61d8fd9abe9
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Regards,
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Hi,
If you want to see the logincal database used in the report ( tcode se38) in the intial screen select the attribute tab
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Hi,
how to find using SCCM SQL query, application deployed on win 7 machines with SCCM 2012 server or user/technician installed manually. Please let me know.

Thanks, is it not possible via any script also?
Like Torsten said, how can you tell the difference between CM12 installed applications and locally installed? Once you can answer that, then you can write report.
Garth Jones | My blogs: Enhansoft and
Old Blog site | Twitter:
@GarthMJ

How to find / check database / query bottleneck ?

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