SQL Query of VO joining to 2 tables assigining to one EO
R12.0.6
Hello,
there is a VO which has a SQL joining 2 Tables. This is being used for a Query Bean (Search Page)
This VO i want to assign an EO to modifiy Values in DB (Update Icon in every Row).
Does this make sense? ( If doing the transaction will not be done in DB: In Console window i get the Warning "EntityCache:add WARNING - ignoring row")
Or is it better to leave the Search VO and create another one which has direct mapping the EO.
Any Suggestion on that?`
Which would be the best preactise?
Thank You in advice!
Hi Again,
Hopefully the Part 1 of your problem is solved. If so please do close that thread.
SELECT &P_COLUMN_1 COLUMN_1,
&P_COLUMN_2 COLUMN_2,
&P_COLUMN_3 COLUMN_3,
&P_COLUMN_4 COLUMN_4
FROM &table_name
Note you need to create the User parameters before creating the Query and also all the parameter for column and table name should have valid default value.
Please do close your threads and also give the points if you get a solution.
Best Regards
Arif Khadas
Similar Messages
-
Sql query with multiple joins to same table
I have to write a query for a client to display business officers' names and title along with the business name
The table looks like this
AcctNumber
OfficerTitle
OfficerName
RecKey
90% of the businesses have exactly 4 officer records, although some have less and some have more.
There is a separate table that has the AcctNumber, BusinessName about 30 other fields that I don’t need
An individual account can have 30 or 40 records on the other table.
The client wants to display 1 record per account.
Initially I wrote a query to join the table to itself:
Select A.OfficerTtitle, A.OfficerName, B.OfficerTitle, B.OfficerName, C.OfficerTtitle, C.OfficerName, D.OfficerTitle, D.OfficerName where A.AcctNumber = B.AcctNumber and A.AcctNumber = C.AcctNumber and A.AcctNumber = D.AcctNumber
This returned tons of duplicate rows for each account ( number of records * number of records, I think)
So added
And A.RecKey > B.RecKey and B.RecKey > C. RecKey and C.RecKey . D.RecKey
This works when there are exactly 4 records per account. If there are less than 4 records on the account it skips the account and if there are more than 4 records, it returns multiple rows.
But when I try to l join this to the other table to get the business name, I get a row for every record on the other table
I tried select distinct on the other table and the query runs for ever and never returns anything
I tried outer joins and subqueries, but no luck so far. I was thinking maybe a subquery - if exists - because I don't know how many records there are on an account, but don't know how to structure that
Any suggestions would be appreciatedWelcome to the forum!
user13319842 wrote:
I have to write a query for a client to display business officers' names and title along with the business name
The table looks like this
AcctNumber
OfficerTitle
OfficerName
RecKey
90% of the businesses have exactly 4 officer records, although some have less and some have more.
There is a separate table that has the AcctNumber, BusinessName about 30 other fields that I don’t need
An individual account can have 30 or 40 records on the other table.
The client wants to display 1 record per account.As someone has already mentioned, you should post CREATE TABLE and INSERT statements for both tables (relevant columns only). You don't have to post a lot of sample data. For example, you need to pick 1 out of 30 or 40 rows (max) for the same account, but it's almost certainly enough if you post only 3 or 4 rows (max) for an account.
Also, post the results you want from the sample data that you post, and explain how you get those resutls from that data.
Always say which version of Oracle you're using. This sounds like a PIVOT problem, and a new SELECT .... PIVOT feature was introduced in Oracle 11.1. If you're using Oracle 11, you don't want to have to learn the old way to do pivots. On the other hand, if you have Oracle 10, a solution that uses a new feature that you don't have won't help you.
Whenever you have a question, please post CREATE TABLE and INSERT statements for some sample data, the results you want from that data, an explanation, and your Oracle version.
Initially I wrote a query to join the table to itself:
Select A.OfficerTtitle, A.OfficerName, B.OfficerTitle, B.OfficerName, C.OfficerTtitle, C.OfficerName, D.OfficerTitle, D.OfficerName where A.AcctNumber = B.AcctNumber and A.AcctNumber = C.AcctNumber and A.AcctNumber = D.AcctNumber Be careful, and post the exact code that you're running. The statement above can't be what you ran, because it doesn't have a FROM clause.
This returned tons of duplicate rows for each account ( number of records * number of records, I think)
So added
And A.RecKey > B.RecKey and B.RecKey > C. RecKey and C.RecKey . D.RecKey
This works when there are exactly 4 records per account. If there are less than 4 records on the account it skips the account and if there are more than 4 records, it returns multiple rows.
But when I try to l join this to the other table to get the business name, I get a row for every record on the other table
I tried select distinct on the other table and the query runs for ever and never returns anything
I tried outer joins and subqueries, but no luck so far. I was thinking maybe a subquery - if exists - because I don't know how many records there are on an account, but don't know how to structure that
Any suggestions would be appreciatedDisplaying 1 column from n rows as n columns on 1 row is called Pivoting . See the following link fro several ways to do pivots:
SQL and PL/SQL FAQ
Pivoting requires that you know exactly how many columns will be in the result set. If that number depends on the data in the table, then you might prefer to use String Aggregation , where the output consists of a huge string column, that contains the concatenation of the data from n rows. This big string can be formatted so that it looks like multiple columns. For different string aggregation techniques, see:
http://www.oracle-base.com/articles/10g/StringAggregationTechniques.php
The following thread discusses some options for pivoting a variable number of columns:
Re: Report count and sum from many rows into many columns -
In a SQL query whihc has join, How to reduce Multiple instance of a table
in a SQL query which has join, How to reduce Multiple instance of a table
Here is an example: I am using Oracle 9i
is there a way to reduce no.of Person instances from the following query? or can I optimize this query further?
TABLES:
mail_table
mail_id, from_person_id, to_person_id, cc_person_id, subject, body
person_table
person_id, name, email
QUERY:
SELECT p_from.name from, p_to.name to, p_cc.name cc, subject
FROM mail, person p_from, person p_to, person p_cc
WHERE from_person_id = p_from.person_id
AND to_person_id = p_to.person_id
AND cc_person_id = p_cc.person_id
Thnanks in advance,
Babu.SQL> select * from mail;
ID F T CC
1 1 2 3
SQL> select * from person;
PID NAME
1 a
2 b
3 c
--Query with only ne Instance of PERSON Table
SQL> select m.id,max(decode(m.f,p.pid,p.name)) frm_name,
2 max(decode(m.t,p.pid,p.name)) to_name,
3 max(decode(m.cc,p.pid,p.name)) cc_name
4 from mail m,person p
5 where m.f = p.pid
6 or m.t = p.pid
7 or m.cc = p.pid
8 group by m.id;
ID FRM_NAME TO_NAME CC_NAME
1 a b c
--Expalin plan for "One instance" Query
SQL> explain plan for
2 select m.id,max(decode(m.f,p.pid,p.name)) frm_name,
3 max(decode(m.t,p.pid,p.name)) to_name,
4 max(decode(m.cc,p.pid,p.name)) cc_name
5 from mail m,person p
6 where m.f = p.pid
7 or m.t = p.pid
8 or m.cc = p.pid
9 group by m.id;
Explained.
SQL> select * from table(dbms_xplan.display);
PLAN_TABLE_OUTPUT
Plan hash value: 902563036
| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time |
| 0 | SELECT STATEMENT | | 3 | 216 | 7 (15)| 00:00:01 |
| 1 | HASH GROUP BY | | 3 | 216 | 7 (15)| 00:00:01 |
| 2 | NESTED LOOPS | | 3 | 216 | 6 (0)| 00:00:01 |
| 3 | TABLE ACCESS FULL| MAIL | 1 | 52 | 3 (0)| 00:00:01 |
|* 4 | TABLE ACCESS FULL| PERSON | 3 | 60 | 3 (0)| 00:00:01 |
PLAN_TABLE_OUTPUT
Predicate Information (identified by operation id):
4 - filter("M"."F"="P"."PID" OR "M"."T"="P"."PID" OR
"M"."CC"="P"."PID")
Note
- dynamic sampling used for this statement
--Explain plan for "Normal" query
SQL> explain plan for
2 select m.id,pf.name fname,pt.name tname,pcc.name ccname
3 from mail m,person pf,person pt,person pcc
4 where m.f = pf.pid
5 and m.t = pt.pid
6 and m.cc = pcc.pid;
Explained.
SQL> select * from table(dbms_xplan.display);
PLAN_TABLE_OUTPUT
Plan hash value: 4145845855
| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time |
| 0 | SELECT STATEMENT | | 1 | 112 | 14 (15)| 00:00:01 |
|* 1 | HASH JOIN | | 1 | 112 | 14 (15)| 00:00:01 |
|* 2 | HASH JOIN | | 1 | 92 | 10 (10)| 00:00:01 |
|* 3 | HASH JOIN | | 1 | 72 | 7 (15)| 00:00:01 |
| 4 | TABLE ACCESS FULL| MAIL | 1 | 52 | 3 (0)| 00:00:01 |
| 5 | TABLE ACCESS FULL| PERSON | 3 | 60 | 3 (0)| 00:00:01 |
PLAN_TABLE_OUTPUT
| 6 | TABLE ACCESS FULL | PERSON | 3 | 60 | 3 (0)| 00:00:01 |
| 7 | TABLE ACCESS FULL | PERSON | 3 | 60 | 3 (0)| 00:00:01 |
Predicate Information (identified by operation id):
1 - access("M"."CC"="PCC"."PID")
2 - access("M"."T"="PT"."PID")
3 - access("M"."F"="PF"."PID")
PLAN_TABLE_OUTPUT
Note
- dynamic sampling used for this statement
25 rows selected.
Message was edited by:
jeneesh
No indexes created... -
Can we use Data Pump to export data, using a SQL query, doing a join
Folks,
I have a quick question.
Using Oracle 10g R2 on Solaris 10.
Can Data Pump be used to export data, using a SQL query which is doing a join between 3 tables ?
Thanks,
AshishHello,
No , this is from expdp help=Y
QUERY Predicate clause used to export a subset of a table.
Regards -
SQL Query constructing for searching values in Tables single Column
I have Table USER_SERVICES with 2 Columns USER_NAME, Services. Please find below sample data on USER_SERVICES Table.
A user can be assigned with multiple services(service1, service2 etc.,). So we store data as below :
USER_NAME Services
user1 service1
user1 service2
user1 service3
user2 service1
user2 service2
user3 service3
user4 service4
I need to frame a SQL Query to 'select users assigned with Service A and Service B and Service n'.
Note: 'And' condition is used when Searching for multiple services.
Example: The SQL Query has to dynamically handle condition if i give Single Service, multiple Services(service1 and service2 e.t.c,)
If i say select users assigned with service1 and service2, from the above Table, result should be user1 and user2
If i say select users assigned with service1 and service2 and service3, from the above Table, result should be user1
If i say select users assigned with service4 from the above table, result should be user4
If i say select users assigned with service1 from the above table, result should be user2,user1
If i say select users assigned with service1 and service2 from the above table, result should be user2,user1
How do i construct the SQL Query. Any help will be appreciated.
Thanks,
Sathish
Alternate email: [email protected]How it will be stored? In a string or a table or a collection type?
If you have it in a table you can do like this.
with t
as
select 'user1' user_name, 'service1' services from dual union all
select 'user1', 'service2' from dual union all
select 'user1', 'service3' from dual union all
select 'user2', 'service1' from dual union all
select 'user2', 'service2' from dual union all
select 'user3', 'service3' from dual union all
select 'user4', 'service4' from dual
t1 as
select 'service1' services from dual union all
select 'service2' from dual
select distinct user_name
from (
select t.user_name, t.services, t1.services, count(t1.services) over(partition by t.user_name) cnt, t1.cnt cnt_1
from t
left join (select t1.*, count(*) over() cnt from t1) t1 on t1.services = t.services
where cnt = cnt_1 -
Need help in SQL Query: Update a row in a table & insert the same row into another table
I want to update a row in a table say Table A and the updated row should be inserted into another table say Table B. I need to do it in a single SQL query and i don't want to do it in PL/SQL with triggers. And i tried with MERGE statement but its working with this scenario. (Note: I'm using Oracle Database 10g Enterprise Edition Release 10.2.0.1.0).
Thanks in Advance.Using Sven's code as an example, you could save the updated row in a sql plus variable. (also untested):
SQL> var v_id number
update tableA
set colB='ABC'
where colC='XYZ'
returning id into :v_id;
insert into table A_History (ID, colA, colB, ColC)
select id, ColA, ColB, ColC
from tableA
where id = :v_id; -
Dynamic SQL Query to Find Special Characters in Table columns
Hi,
I am new to OTN FORUMS.
I am trying to find the columnsi of a table which have special characters in them.
I am planning on using this query
select ' select INSTR('||column_name||', chr(0))
from '||table_name||'where INSTR('||column_name||', chr(0)) >0' from user_tab_columns
where table_name='Account'
and spool the output to run as a script.
Is this the right way or do u suggest any modifications to the query?
Thanks in advance.Hi,
I think your basic approach is right. Since you can't hard-code the table- or column names into the query, you'll need dynamic SQL.
Instead SQL-from-SQL (that is, writing a pure SQL query, whose output is SQL code), you could do the whole job in PL/SQL, but I don't see any huge advantage either way.
When you say "Special character<b>s</b>", do you really mean "one given special character" (in this case, CHR(0))?
Will you ever want to search for multiple special characters at once?
What if table foo has a column bar, and in 1000 rows of foo, bar contains CHR (0). Do you want 1000 rows of output, each showing the exact position of the first CHR(0)? If the purpose is to look at theese rows later, shouldn't you include the primary key in the output? What if CHR(0) occurs 2 or more times in the same string?
If you'd rather have one row of output, that simply says that the column foo.bar sometimes contains a CHR(0), then you could do something like this:
SELECT 'foo', 'bar'
FROM dual
WHERE EXISTS (
SELECT NULL
FROM foo
WHERE INSTR ( bar
, CHR (0)
) > 0
); -
Sql query: number of occurence of cellData on more thann one column in tabl
I have employee table contains following rows.
INSERT INTO employee VALUES (105, 'Srinath','vijay','Aeronautics', 27, 33000);
INSERT INTO employee VALUES (105, 'Kumble','Anil','Aeronautics', 27, 33000);
INSERT INTO employee VALUES (105, 'Prabhakar','Manoj','Aeronautics', 27, 33000);
INSERT INTO employee VALUES (105, 'Srinath','Jawagal','Aeronautics', 27, 33000);
INSERT INTO employee VALUES (105, 'Jawagal','Srinath','Aeronautics', 27, 33000);
INSERT INTO employee VALUES (105, 'Mishra','Anil','Aeronautics', 27, 33000);
INSERT INTO employee VALUES (105, 'Kumble','Prabhakar','Aeronautics', 27, 33000);select distinct first_name firstName,count(1) over (partition by first_name) firstNameCount from employee;
and i got the follwoing result.
(Srinath 2,Kumble 2,Prabhakar 1,Jawagal 1,Mishra 1)
Now i want to consider second and third column both and want to number of occurence of table data on these two columns
(Srinath 3,Kumble 2,Prabhakar 2,Jawagal 2,Mishra 1,vijay 1,Anil 2,Manoj 1)As Srinath is coming 3 times, kumble 2 times, Prabhakar 2 times,Jawagal 2 times,Mishra 1 times,vijay 1 times,Anil 2 times and Manoj 1 times.
What will be my sql query?Try this
select name, count(name) over(partition by name) cnt
from (select first_name from employee union all select last_name from employee) -
How to write sql query for counting pairs from below table??
Below is my SQL table structure.
user_id | Name | join_side | left_leg | right_leg | Parent_id
100001 Tinku Left 100002 100003 0
100002 Harish Left 100004 100005 100001
100003 Gorav Right 100006 100007 100001
100004 Prince Left 100008 NULL 100002
100005 Ajay Right NULL NULL 100002
100006 Simran Left NULL NULL 100003
100007 Raman Right NULL NULL 100003
100008 Vijay Left NULL NULL 100004
It is a binary table structure.. Every user has to add two per id under him, one is left_leg and second is right_leg... Parent_id is under which user current user is added.. Hope you will be understand..
I have to write sql query for counting pairs under id "100001". i know there will be important role of parent_id for counting pairs. * what is pair( suppose if any user contains both left_leg and right_leg id, then it is called pair.)
I know there are three pairs under id "100001" :-
1. 100002 and 100003
2. 100004 and 100005
3. 100006 and 100007
100008 will not be counted as pair because it does not have right leg..
But i dont know how to write sql query for this... Any help will be appreciated... This is my college project... And tommorow is the last date of submission.... Hope anyone will help me...
Suppose i have to count pair for id '100002'. Then there is only one pair under id '100002'. i.e 100004 and 100005Sounds like this to me
DECLARE @ID int
SET @ID = 100001--your passed value
SELECT left_leg,right_leg
FROM table
WHERE (user_id = @ID
OR parent_id = @ID)
AND left_leg IS NOT NULL
AND right_leg IS NOT NULL
Please Mark This As Answer if it helps to solve the issue Visakh ---------------------------- http://visakhm.blogspot.com/ https://www.facebook.com/VmBlogs -
Inserting field text into sql query and comparing values to another table
I have an issue in Visual Web Developer 2010 that I need help with.
The code below is a Gridview Sql query where I'm extracting PART_NUMBER from various tables. I would like to add the table name in a separate field named Table. The end result should appear as follows:
PART_NUMBER Table
010-0075-06 Resistors (or Capacitors, etc.)
Sql query:
SELECT PART_NUMBER
FROM Capacitors
EXCEPT
SELECT PART_NUMBER
FROM [CIS Manufacturer Parts]
UNION
SELECT PART_NUMBER
FROM Connectors
EXCEPT
SELECT PART_NUMBER
FROM [CIS Manufacturer Parts]
UNION
SELECT PART_NUMBER
FROM Diodes
EXCEPT
SELECT PART_NUMBER
FROM [CIS Manufacturer Parts]
UNION
SELECT PART_NUMBER
FROM ICs
EXCEPT
SELECT PART_NUMBER
FROM [CIS Manufacturer Parts]
UNION
SELECT PART_NUMBER
FROM Inductors
EXCEPT
SELECT PART_NUMBER
FROM [CIS Manufacturer Parts]
UNION
SELECT PART_NUMBER
FROM Misc
EXCEPT
SELECT PART_NUMBER
FROM [CIS Manufacturer Parts]
UNION
SELECT PART_NUMBER
FROM Relays
EXCEPT
SELECT PART_NUMBER
FROM [CIS Manufacturer Parts]
UNION
SELECT PART_NUMBER
FROM Resistors
EXCEPT
SELECT PART_NUMBER
FROM [CIS Manufacturer Parts]
UNION
SELECT PART_NUMBER
FROM Switches
EXCEPT
SELECT PART_NUMBER
FROM [CIS Manufacturer Parts]
UNION
SELECT PART_NUMBER
FROM Transformers
EXCEPT
SELECT PART_NUMBER
FROM [CIS Manufacturer Parts]
UNION
SELECT PART_NUMBER
FROM Transistors
EXCEPT
SELECT PART_NUMBER
FROM [CIS Manufacturer Parts]
UNION
SELECT PART_NUMBER
FROM [Crystals and Oscillators]
EXCEPT
SELECT PART_NUMBER
FROM [CIS Manufacturer Parts]
ORDER BY PART_NUMBER
I have a separate table (CIS Manufacturer Parts) that contains manufacturer data for the above parts. Multiple manufacturer rows can exist. The connection between tables in the PART_NUMBER field. What I would like to do is make this query
add the table name to the gridview output listing only parts without manufacturer data and the table they can be found in.
This is a lot for a newbie so I will appreciate any help, thanks!Hello Bulldog248,
Thank you for your post.
Your issue is out of support range of VS General Question forum which mainly discusses the usage issue of Visual Studio IDE such as
WPF & SL designer, Visual Studio Guidance Automation Toolkit, Developer Documentation and Help System
and Visual Studio Editor.
I am moving your question to the moderator forum ("Where is the forum for..?"). The owner of the forum will direct you to a right forum.
Best regards,
We are trying to better understand customer views on social support experience, so your participation in this interview project would be greatly appreciated if you have time. Thanks for helping make community forums a great place.
Click
HERE to participate the survey. -
Need sql query to get OIM request pending approval details for one user
HI OIM Guru,
It would be great help if someone can provide me sql query by which i can find out how many requests are pending for approval for one user ?1. Below query will give you status of all the request.
SELECT REQ.REQUEST_ID , REQ.REQUEST_STATUS FROM REQUEST REQ
2. You can have following status
Obtaining Operation Approval
Obtaining Template Approval
Operation Approval Approved
Operation Approval Rejected
Post Operation Processing Initiated
Request Approval Rejected
Request Closed
Request Completed
Request Created
Request Failed
Request Withdrawn
Template Approval Rejected
3. Now prepare the query from above sapmle, the requset status string should not contains foloowing values.
Rejected
Failed
Closed
Withdrawn
Completed
The builded query will give you the desired result for 11g
for 10 G
Get the OST_STATUS from Req table, and do you logic above stated
-Kuldeep
Edited by: Kuldeep on May 22, 2012 1:04 AM -
SQL Server 2012 Undetected Deadlock in a table with only one row
We have migrated our SQL 2000 Enterprise Database to SQL 2012 Enterprise few days ago.
This is our main database, so most of the applications access it.
The day after the migration, when users started to run tasks, the database access started to experiment a total failure.
That is, all processes in the SQL 2k12 database were in lock with each other. This is a commom case of deadlock, but the Database Engine was unable to detect it.
After some research, we found that the applications were trying to access a very simple table with only one row. This table has a number that is restarted every day and is used to number all the transactions made against the system. So, client
applications start a new transaction, get the current number, increment it by one and commit the transaction.
The only solution we found was to kill all user processes in SQL Server every time this situation occurs (no more than 5 minutes when all clients are accessing the database).
No client application was changed in this migration and this process was working very well for the last 10 years.
The problem is that SQL 2k12 is unable to handle this situation compared to SQL 2k.
It seems to occurs with other tables too, but as this is an "entry table" the problem occurs with it first.
I have searched internet and some suggest some workarounds like using table hints to completely lock the table at the begining of the transaction, but it can't be used to other tables.
Does anyone have heard this to be a problem with SQL 2k12? Is there any fixes to make SQL 2k12 as good as SQL 2k?First off re: "Unfortunatelly, this can't be used in production environment as exclusive table lock would serialize the accesses to tables and there will be other tables that will suffer with this problem."
This is incorrect.
Using a table to generate sequence numbers like this is a bad idea exactly because the access must be serialized. Since you can't switch to a SEQUENCE object, which is the correct solution, the _entire goal_ of this exercise to find a way to properly
serialize access to this table. Using exclusive locking will not be necessary for all the tables; just for the single-row table used for generating sequence values with a cursor.
I converted the sample program to VB.NET:
Public Class Form1
Private mbCancel As Boolean = False
Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
Dim soConn As ADODB.Connection
Dim soRst As ADODB.Recordset
Dim sdData As Date
Dim slValue As Long
Dim slDelay As Long
'create database vbtest
'go
' CREATE TABLE [dbo].[ControlNumTest](
' [UltData] [datetime] NOT NULL,
' [UltNum] [int] NOT NULL,
' CONSTRAINT [PK_CorreioNumTeste] PRIMARY KEY CLUSTERED
' [UltData] Asc
' )WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON, FILLFACTOR = 80) ON [PRIMARY]
' ) ON [PRIMARY]
mbCancel = False
Do
' Configure the Connection object
soConn = New ADODB.Connection
With soConn
.ConnectionString = "Provider=SQLNCLI11;Initial Catalog=vbtest;Data Source=localhost;trusted_connection=yes"
.IsolationLevel = ADODB.IsolationLevelEnum.adXactCursorStability
.Mode = ADODB.ConnectModeEnum.adModeReadWrite
.CursorLocation = ADODB.CursorLocationEnum.adUseServer
.Open()
End With
' Start a new transaction
Call soConn.BeginTrans()
' Configure the RecordSet object
soRst = New ADODB.Recordset
With soRst
.ActiveConnection = soConn
.CursorLocation = ADODB.CursorLocationEnum.adUseServer
.CursorType = ADODB.CursorTypeEnum.adOpenForwardOnly
.LockType = ADODB.LockTypeEnum.adLockPessimistic
.Open("SELECT * FROM dbo.ControlNumTest")
End With
With soRst
sdData = .Fields!UltData.Value ' Read the last Date (LOCK INFO 1: See comments bello
slValue = .Fields!UltNum.Value ' Read the last Number
If sdData <> Date.Now.Date Then ' Date has changed?
sdData = Date.Now.Date
slValue = 1 ' Restart number
End If
.Fields!UltData.Value = sdData ' Update data
.Fields!UltNum.Value = slValue + 1 ' Next number
End With
Call soRst.Update()
Call soRst.Close()
' Ends the transaction
Call soConn.CommitTrans()
Call soConn.Close()
soRst = Nothing
soConn = Nothing
txtUltNum.Text = slValue + 1 ' Display the last number
Application.DoEvents()
slDelay = Int(((Rnd * 250) + 100) / 100) * 100
System.Threading.Thread.Sleep(slDelay)
Loop While mbCancel = False
If mbCancel = True Then
Call MsgBox("The test was canceled")
End If
Exit Sub
End Sub
Private Sub Button2_Click(sender As Object, e As EventArgs) Handles Button2.Click
mbCancel = True
End Sub
End Class
And created the table
CREATE TABLE [dbo].[ControlNumTest](
[UltData] [datetime] NOT NULL,
[UltNum] [int] NOT NULL,
CONSTRAINT [PK_CorreioNumTeste] PRIMARY KEY CLUSTERED
[UltData] Asc
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = on, FILLFACTOR = 80) ON [PRIMARY]
) ON [PRIMARY]
go insert into ControlNumTest values (cast(getdate()as date),1)
Then ran 3 copies of the program and generated the deadlock:
<deadlock>
<victim-list>
<victimProcess id="processf27b1498" />
</victim-list>
<process-list>
<process id="processf27b1498" taskpriority="0" logused="0" waitresource="KEY: 35:72057594039042048 (a01df6b954ad)" waittime="1970" ownerId="3181" transactionname="implicit_transaction" lasttranstarted="2014-02-14T15:49:31.263" XDES="0xf04da3a8" lockMode="X" schedulerid="4" kpid="9700" status="suspended" spid="51" sbid="0" ecid="0" priority="0" trancount="2" lastbatchstarted="2014-02-14T15:49:31.267" lastbatchcompleted="2014-02-14T15:49:31.267" lastattention="1900-01-01T00:00:00.267" clientapp="vbt" hostname="DBROWNE2" hostpid="21152" loginname="NORTHAMERICA\dbrowne" isolationlevel="read committed (2)" xactid="3181" currentdb="35" lockTimeout="4294967295" clientoption1="671088672" clientoption2="128058">
<executionStack>
<frame procname="adhoc" line="1" stmtstart="80" sqlhandle="0x020000008376181f3ad0ea908fe9d8593f2e3ced9882f5c90000000000000000000000000000000000000000">
UPDATE [dbo].[ControlNumTest] SET [UltData]=@Param000004,[UltNum]=@Param000005 </frame>
<frame procname="unknown" line="1" sqlhandle="0x0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000">
unknown </frame>
</executionStack>
<inputbuf>
(@Param000004 datetime,@Param000005 int)UPDATE [dbo].[ControlNumTest] SET [UltData]=@Param000004,[UltNum]=@Param000005 </inputbuf>
</process>
<process id="processf6ac9498" taskpriority="0" logused="10000" waitresource="KEY: 35:72057594039042048 (a01df6b954ad)" waittime="1971" schedulerid="5" kpid="30516" status="suspended" spid="55" sbid="0" ecid="0" priority="0" trancount="1" lastbatchstarted="2014-02-14T15:49:31.267" lastbatchcompleted="2014-02-14T15:49:31.267" lastattention="1900-01-01T00:00:00.267" clientapp="vbt" hostname="DBROWNE2" hostpid="27852" loginname="NORTHAMERICA\dbrowne" isolationlevel="read committed (2)" xactid="3182" currentdb="35" lockTimeout="4294967295" clientoption1="671156256" clientoption2="128058">
<executionStack>
<frame procname="adhoc" line="1" sqlhandle="0x020000003c6309232ab0edbe0a7790a816a09c4c5ac6f43c0000000000000000000000000000000000000000">
FETCH API_CURSOR0000000000000001 </frame>
<frame procname="unknown" line="1" sqlhandle="0x0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000">
unknown </frame>
</executionStack>
<inputbuf>
FETCH API_CURSOR0000000000000001 </inputbuf>
</process>
</process-list>
<resource-list>
<keylock hobtid="72057594039042048" dbid="35" objectname="vbtest.dbo.ControlNumTest" indexname="PK_CorreioNumTeste" id="lockff6e6c80" mode="U" associatedObjectId="72057594039042048">
<owner-list>
<owner id="processf6ac9498" mode="S" />
<owner id="processf6ac9498" mode="U" requestType="wait" />
</owner-list>
<waiter-list>
<waiter id="processf27b1498" mode="X" requestType="convert" />
</waiter-list>
</keylock>
<keylock hobtid="72057594039042048" dbid="35" objectname="vbtest.dbo.ControlNumTest" indexname="PK_CorreioNumTeste" id="lockff6e6c80" mode="U" associatedObjectId="72057594039042048">
<owner-list>
<owner id="processf27b1498" mode="U" />
<owner id="processf27b1498" mode="U" />
<owner id="processf27b1498" mode="X" requestType="convert" />
</owner-list>
<waiter-list>
<waiter id="processf6ac9498" mode="U" requestType="wait" />
</waiter-list>
</keylock>
</resource-list>
</deadlock>
It's the S lock that comes from the cursor read that's the villian here. U locks are compatible with S locks, so one session gets a U lock and another gets an S lock. But then the session with an S needs a U, and the session with a U needs an
X. Deadlock.
I'm not sure what kind of locks were taken by this cursor code on SQL 2000, but on SQL 2012, this code is absolutely broken and should deadlock.
The right way to fix this code is to add (UPDLOCK,SERIALIZABLE) to the cursor
.Open("SELECT * FROM dbo.ControlNumTest with (updlock,serializable)")
So each session reads the table with a restrictive lock, and you don't mix S, U and X locks in this transaction. This resolves the deadlock, but requires a code change.
I tried several things that didn't require a code, which did not resolve the deadlock;
1) setting ALLOW_ROW_LOCKS=OFF ALLOW_PAGE_LOCKS=OFF
2) SERIALIZABLE isolation level
3) Switching OleDB providers from SQLOLEDB to SQLNCLI11
Then I replaced the table with a view containing a lock hint:
CREATE TABLE [dbo].[ControlNumTest_t](
[UltData] [datetime] NOT NULL,
[UltNum] [int] NOT NULL,
CONSTRAINT [PK_CorreioNumTeste] PRIMARY KEY CLUSTERED
[UltData] Asc
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = on, FILLFACTOR = 80) ON [PRIMARY]
) ON [PRIMARY]
go
create view ControlNumTest as
select * from ControlNumTest_t with (tablockx)
Which, at least in my limited testing, resovlved the deadlock without any client code change.
David
David http://blogs.msdn.com/b/dbrowne/ -
SQL Query in mapping to load warehouse table
Hi experts,
I hope you can help me to solve my problem. I already searched here in forum how we can add a query in a mapping but still not found an answer.
In my warehouse I have a time dimension table which has a unique dimension key and all date information. In my source database I have a table for sales information. In that sales table I have a field called date. This date will be in format dd.mm.yyyy.
I also have a sales table in my warehouse what is nearly a copy of the source sales table. I have only one more field in this warehouse sales table called "time_dim_key". That field should get the dimension key of the warehouse time dimension table depending to the date out of the sales table from source.
To do that I'm thinking about a mapping what includes:
- the source sales table
- the warehouse dimension time table
- the warehouse sales table
The normal fields I can directly map from source sales table to warehouse sales table.
But the "time_dim_key" field of warehouse sales table should get filled like:
select dimension_key from warehouse_time_dim_table where day_date = source_sales_table.date
Unfortunately I don't know how I include a query to get the correct date out of that source sales table in the mapping to fill the warehouse sales table.
I hope somebody can help me to solve that issue.
Thanks a lot!
Regards,
Davidtake joiner from the pallete
and create two groups
1.warehouse_time_dim_table
2.source_sales_table
then in join condition write
warehouse_time_dim_table.day_date = source_sales_table.date
That will solve the purpose.
Cheers
Nawneet -
Performance tuning of sql query with multiple joins
My query takes at least half an hour to execute and the number of records returned are approx 1 lakh records.
Structure of tables are:
tblSession : ID,option1,option2,option3,option4,option5,option6,option7,option8,option9.
tblOption : ID, labelID
tblLabelDetail : ID, LABELID, text
optionID 1 to optionID9 are Foreign keys to table tblOption.ID
My query is as below :
select
session.ID
,session.tstamp
,session.score
,session.hid1
,session.hID2
,session.hID3
,session.collectionID
,session.consumerID
,session.langID
,cons_cust.text1 as customCons_text1,
cons_cust.text2 as customCons_text2,
cons_cust.text3 as customCons_text3,
cons_cust.text4 as customCons_text4,
cons_cust.text5 as customCons_text5,
cons_cust.text6 as customCons_text6,
cons_cust.text7 as customCons_text7,
cons_cust.text8 as customCons_text8,
cons_cust.text9 as customCons_text9,
ld_cons1.text as customCons_option1GUID,
ld_cons2.text as customCons_option2GUID,
ld_cons3.text as customCons_option3GUID,
ld_cons4.text as customCons_option4GUID ,
ld_cons5.text as customCons_option5GUID,
ld_cons6.text as customCons_option6GUID,
ld_cons7.text as customCons_option7GUID,
ld_cons8.text as customCons_option8GUID,
ld_cons9.text as customCons_option9GUID,
--session
session_cust.text1 as session_cust_text1,
session_cust.text2 as session_cust_text2,
session_cust.text3 as session_cust_text3,
session_cust.text4 as session_cust_text4,
session_cust.text5 as session_cust_text5,
session_cust.text6 as session_cust_text6,
session_cust.text7 as session_cust_text7,
session_cust.text8 as session_cust_text8,
session_cust.text9 as session_cust_text9,
ld_sess1.text as session_cust_option1GUID,
ld_sess2.text as session_cust_option2GUID,
ld_sess3.text as session_cust_option3GUID,
ld_sess4.text as session_cust_option4GUID,
ld_sess5.text as session_cust_option5GUID,
ld_sess6.text as session_cust_option6GUID,
ld_sess7.text as session_cust_option7GUID,
ld_sess8.text as session_cust_option8GUID,
ld_sess9.text as session_cust_option9GUID,
session_cust.tStamp1,
session_cust.tStamp2
from mvSession session with (noexpand)
inner join tblCollection c on c.ID=session.collectionID AND c.templateID = 405
left join tblConsumer cons on cons.ID=session.consumerID and cons.sessionYM between 601 and 1412 and cons.sID=105
left join vCustomConsumer cons_cust on cons_cust.sessionYM between 601 and 1412 and cons_cust.sID=105 and cons_cust.ID=cons.ID
left join tbloption o_cons1 on o_cons1.id = cons_cust.option1 and o_cons1.sid = 105
left join tblLabelDetail ld_cons1 on ld_cons1.labelID = o_cons1.labelID and ld_cons1.langId = 1 and ld_cons1.eid = 107
left join tbloption o_cons2 on o_cons2.id = cons_cust.option2 and o_cons2.sid = 105
left join tblLabelDetail ld_cons2 on ld_cons2.labelID = o_cons2.labelID and ld_cons2.langId = 1 and ld_cons2.eid = 107
left join tbloption o_cons3 on o_cons3.id = cons_cust.option3 and o_cons3.sid = 105
left join tblLabelDetail ld_cons3 on ld_cons3.labelID = o_cons1.labelID and ld_cons3.langId = 1 and ld_cons3.eid = 107
left join tbloption o_cons4 on o_cons4.id = cons_cust.option4 and o_cons4.sid = 105
left join tblLabelDetail ld_cons4 on ld_cons4.labelID = o_cons4.labelID and ld_cons4.langId = 1 and ld_cons4.eid = 107
left join tbloption o_cons5 on o_cons5.id = cons_cust.option5 and o_cons5.sid = 105
left join tblLabelDetail ld_cons5 on ld_cons5.labelID = o_cons5.labelID and ld_cons5.langId = 1 and ld_cons5.eid = 107
left join tbloption o_cons6 on o_cons6.id = cons_cust.option6 and o_cons6.sid = 105
left join tblLabelDetail ld_cons6 on ld_cons6.labelID = o_cons6.labelID and ld_cons6.langId = 1 and ld_cons6.eid = 107
left join tbloption o_cons7 on o_cons7.id = cons_cust.option7 and o_cons7.sid = 105
left join tblLabelDetail ld_cons7 on ld_cons7.labelID = o_cons7.labelID and ld_cons7.langId = 1 and ld_cons7.eid = 107
left join tbloption o_cons8 on o_cons8.id = cons_cust.option8 and o_cons8.sid = 105
left join tblLabelDetail ld_cons8 on ld_cons8.labelID = o_cons8.labelID and ld_cons8.langId = 1 and ld_cons8.eid = 107
left join tbloption o_cons9 on o_cons9.id = cons_cust.option9 and o_cons9.sid = 105
left join tblLabelDetail ld_cons9 on ld_cons9.labelID = o_cons9.labelID and ld_cons9.langId = 1 and ld_cons9.eid = 107
left join vCustomSession session_cust on session_cust.sessionYM between 601 and 1412 and session_cust.sID=105 and session_cust.ID=session.ID
left join tbloption o_sess1 on o_sess1.id = session_cust.option1 and o_sess1.sid = 105
left join tblLabelDetail ld_sess1 on ld_sess1.labelID = o_sess1.labelID and ld_sess1.langId = 1 and ld_sess1.eid = 107
left join tbloption o_sess2 on o_sess2.id = session_cust.option2 and o_sess2.sid = 105
left join tblLabelDetail ld_sess2 on ld_sess2.labelID = o_sess2.labelID and ld_sess2.langId = 1 and ld_sess2.eid = 107
left join tbloption o_sess3 on o_sess2.id = session_cust.option3 and o_sess3.sid = 105
left join tblLabelDetail ld_sess3 on ld_sess3.labelID = o_sess2.labelID and ld_sess3.langId = 1 and ld_sess3.eid = 107
left join tbloption o_sess4 on o_sess4.id = session_cust.option4 and o_sess4.sid = 105
left join tblLabelDetail ld_sess4 on ld_sess4.labelID = o_sess4.labelID and ld_sess4.langId = 1 and ld_sess4.eid = 107
left join tbloption o_sess5 on o_sess5.id = session_cust.option5 and o_sess5.sid = 105
left join tblLabelDetail ld_sess5 on ld_sess5.labelID = o_sess5.labelID and ld_sess5.langId = 1 and ld_sess5.eid = 107
left join tbloption o_sess6 on o_sess6.id = session_cust.option6 and o_sess6.sid = 105
left join tblLabelDetail ld_sess6 on ld_sess6.labelID = o_sess6.labelID and ld_sess6.langId = 1 and ld_sess6.eid = 107
left join tbloption o_sess7 on o_sess7.id = session_cust.option7 and o_sess7.sid = 105
left join tblLabelDetail ld_sess7 on ld_sess7.labelID = o_sess7.labelID and ld_sess7.langId = 1 and ld_sess7.eid = 107
left join tbloption o_sess8 on o_sess8.id = session_cust.option8 and o_sess8.sid = 105
left join tblLabelDetail ld_sess8 on ld_sess8.labelID = o_sess8.labelID and ld_sess8.langId = 1 and ld_sess8.eid = 107
left join tbloption o_sess9 on o_sess9.id = session_cust.option9 and o_sess9.sid = 105
left join tblLabelDetail ld_sess9 on ld_sess9.labelID = o_sess9.labelID and ld_sess9.langId = 1 and ld_sess9.eid = 107
where session.sID=105 and session.tStamp >= 'Sep 1 2014 12:00AM' and session.tStamp < 'Dec 12 2014 12:00AM'
order by session.tStamp, session.ID
Is there a way , where i can simplify the joins with tbloption and tblLabelDetail and get my o/p in optimal time.
RegardsI have headed towards another approach ie. using unpivot and then pivot.
First i am converting option1-option9 into column , then doing PIVOT to get back the same record . But issue is that when i am doing pivoting i am getting NULL values.
My query is :
select * into #t1 from
select ID
, option1
, option2
, option3
, option4
, option5
, option6
, option7
, option8
, option9
from vCustomConsumer
where sid=105
and sessionYM = 1412
) SourceTable
UNPIVOT
optionID FOR Col IN
(option1
,option2
,option3
,option4
,option5
,option6
,option7
,option8
,option9 )
) AS unpvt
select t.ID,t.optionID,t.col,cast(ld.text as varchar(max)) as text into #t2
from #t1 t
left outer join tbloption o on o.ID = t.optionID
left outer join tblLabelDetail ld on ld.labelID = o.labelID and ld.langID=1
order by ID,col
select ID,option1
,option2
,[option3]
,option4
,option5
,option6
,option7
,option8
,option9
from
select ID,optionID,col,text
from #t2
)up
pivot
min(text)for col in
(option1
,option2
,[option3]
,option4
,option5
,option6
,option7
,option8
,option9
)as pvt
In my last query where i am using pivot, i am getting NULL values. When i check the data in temp table #t2 , it exists perfectly . But when pivoting i dont understand why it is returning most of the NULL values. I am getting data for only one column in single
row.
Below are some rows from result set finally obtained after pivoting :
ID
option1
option2
option3
option4
option5
option6
option7
option8
option9
62949026
NULL
0 to 200 seconds
NULL
NULL
NULL
NULL
NULL
NULL
NULL
62966000
NULL
NULL
4
NULL
NULL
NULL
NULL
NULL
NULL
62966032
NULL
NULL
4
NULL
NULL
NULL
NULL
NULL
NULL
63090372
NULL
NULL
NULL
NULL
EN
NULL
NULL
NULL
NULL
63090375
NULL
NULL
NULL
NULL
EN
NULL
NULL
NULL
NULL
Thanks, -
SQL Query : Order By issue with HUGE Table
Hello friends,
I have been through a terrible issue with order by. I would appreciate your help. Please let me know, your input for my case:
=> if i run select query it returns result quick in some milliseconds. (sql dev. fetches 50 rows at a time)
=> if i run select query with where condition and column (say A) in where condition is even indexed and i have order by and that order by column (say B) is also indexed.
Now, here is the issue:
1. if no. of rows with that where condition can filter yielding small result set then order by works fine .. 1-5 sec which is good.
2.*if no. of rows with that where condition can filter yielding Large result set, say more than 50,000 then with order by then the wait time is exponential.... i have even waited 10+ mins to get the result back for 120,000 records.*
Is order by takes that long for 100K records ... i think something else if wrong... your pointer will really be helpful... i am very new to sql and even newer for large table case.
I am using SQL Developer Version 2.1.1.64
and Oracle Database 11g Enterprise Edition Release 11.1.0.7.0 - 64bit Production
Thank you so much.
Edited by: 896719 on Jan 11, 2013 8:38 AMYes you are correct, but my concentration was on order by thing, so it will do full scan of table so i was putting that ... and was also wondering if millions of record in table should not be a issue...???
Any way for the explain plan , when just a value in the where changes there is the huge difference i want to point out too as below:
SELECT
FROM
EES_EVT EES_EVT where APLC_EVT_CD= 'ABC' ORDER BY CRE_DTTM DESC
execution time : 0.047 sec
Plan hash value: 290548126
| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time |
| 0 | SELECT STATEMENT | | 27 | 14688 | 25 (4)| 00:00:01 |
| 1 | SORT ORDER BY | | 27 | 14688 | 25 (4)| 00:00:01 |
| 2 | TABLE ACCESS BY INDEX ROWID| EES_EVT | 27 | 14688 | 24 (0)| 00:00:01 |
|* 3 | INDEX RANGE SCAN | XIE1EES_EVT | 27 | | 4 (0)| 00:00:01 |
Predicate Information (identified by operation id):
3 - access("APLC_EVT_CD"='ABC')
Note
- SQL plan baseline "SYS_SQL_PLAN_6d41e6b91925c463" used for this statement
=============================================================================================
SELECT
FROM
EES_EVT EES_EVT where APLC_EVT_CD= 'XYZ' ORDER BY CRE_DTTM DESC
execution : 898.672 sec.
Plan hash value: 290548126
| Id | Operation | Name | Rows | Bytes |TempSpc| Cost (%CPU)| Time |
| 0 | SELECT STATEMENT | | 121K| 62M| | 102K (1)| 00:11:02 |
| 1 | SORT ORDER BY | | 121K| 62M| 72M| 102K (1)| 00:11:02 |
| 2 | TABLE ACCESS BY INDEX ROWID| EES_EVT | 121K| 62M| | 88028 (1)| 00:09:27 |
|* 3 | INDEX RANGE SCAN | XIE1EES_EVT | 121K| | | 689 (1)| 00:00:05 |
Predicate Information (identified by operation id):
3 - access("APLC_EVT_CD"='XYZ')
Note
- SQL plan baseline "SYS_SQL_PLAN_ef5709641925c463" used for this statementAlso Note this table contains 74328 MB data in it.
Thanks
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