SQL 2012 :: Going From Cluster To Avail Groups
May 13, 2015
So, today we have the following:
Dallas: A 2 node Windows 2008 Cluster running SQL 2012 ENT cluster
Wash: A 2 node Windows 2008 Cluster running SQL 2012 ENT cluster
and I'm mirroring (synchronous, no witness) a database from Dallas to Wash.Crappy set up. I know.Now customer wants to have the database mirror to another server in Dallas.What are the high level steps to transform my two clusters to use Availability Groups and Always On?Do I need to basically start over and build a new environment?or can I transform my two disconnected cluster?
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Mar 21, 2014
I'm reading up on Always on and I am confused what is the difference between AlwaysOn Availability Groups and AlwaysOn Failover Cluster Instances.
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Sep 30, 2015
Is it possible to ONLY allow a login to the availability group listener, but block logins to server instance/nodes?
So: MySQLServerA and MySQLServerB are in an avail group "MyAvailGroup".
I want users to login to MyAvailGroup's listener, but I do NOT want them to login to the actual hosts/nodes directly.
Is that possible?
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Aug 12, 2015
I'm looking at using Cluster Shared Volumes on a new Windows Server 2012/SQL Server 2014 cluster. Each instance is going to be configured to use cluster shared volumes. Is there any reason why Availability Groups couldn't be used in conjunction with Cluster Shared Volumes.
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Apr 10, 2014
I ran the Advanced cluster preparation for a new sql instance on an existing cluster.
Slq Server 2012.
After is completed, it was successful, I realized I specified the wrong Instance Root directory.
Is it possible to remove what the preparation installed? Or is it possible to change the root directory?
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Feb 18, 2014
I´ve been reading that SQL Server 2012 Always On is dependent on having a Windows Failover Cluster setup. Is that correct ?
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Feb 11, 2014
Trying to find out if this is the best way to move log files in databases that are in an availability group.
remove the DB from the AG
Run alter database commands like you would normally to take offline ,move file,bring online ,etc
drop the db from secondary node
then rejoin the DB to the AG
Is that the only option for moving them when its in an avail group? cant find any other info on moving files in mirrors or HA groups
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Jun 30, 2014
I been trying to learn availability groups since I have not implemented it.
From my understanding you can have more than one group.
Lets pretend we have two groups in one instance:
1. Accounting
2. Engineering
From my understanding you can't make a database in two AG because it wouldn't make sense.
But lets pretending there is one database that both are used by accounting and engineering.
Would you have to make a third AG for future fail overs so that other databases in the other two group don't failover when not needed because when you fail over an AG all the databases inside it fail over.
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Aug 12, 2013
From what I understand, one SQL Server 2012 instance can host multiple availability groups. That should allow, for example, the following situation - one SQL Server 2012 instance containing three primary replica databases - each one part of a different availability group - and each availability group's secondary replica located on a separate SQL Server 2012 instance.
Can you have three SQL Server 2012 instances, each with one primary replica database and have all three secondary replica databases on one SQL Server 2012 instance? So instead of, as above, going from 1 primary server to 3 secondary servers, this time we're going from 3 primary servers to 1 secondary server? The one secondary server would then contain all three secondary replicas for each of the 3 separate primary replicas.
This would mean that the single server (where all three secondary replicas reside) was part of three separate Windows Server Failover Clustering clusters.
Is this scenario possible?
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Jan 21, 2014
I have a dataset that contains an EmployeeID, StartDate, EndDate, and Location. Each record tells me at which location and employee was during a payroll period (fortnightly). So the data looks like:
EMP_KEYSTART_DTEND_DTLOCATION
120130117201301318103
120130117201301318103
120130131201302143354
120130131201302148103
220130117201301311234
220130131201302144567
120130214201302283354
220130214201302281234
Employees can be at multiple locations during the two weeks. They can work at one location, stop working there, start working somewhere else, and then maybe go back to their old location. There are duplicate records here as each employee can be at the same location multiple times during the two week period. What I need to capture is the actual start and end date of an employee at each location for each 'assignment'. An assignment is defined as a continual period of employment at a location with gaps of no less than 4 days - if there is a gap of more than four days then that is classed as a new assignment.
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Feb 13, 2014
I have four instances and each instance have its own Availability Group with its own listener.
Would like to know if you can have one listener for multiple Availability groups?
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Apr 28, 2014
I am looking for the easiest way of rebalancing data across multiple files.
Instead of creating a secondary filegroup and then dropping and recreating all indexes in the database which is going to take ages (we have a lot of tables and indexes), I am trying to just add more files to the primary file group and then rebalance data evenly between these.
I guessed that adding the new files to the primary file group and then rebuilding all indexes on a table should redistribute the table over these multiple file groups evenly. This is not the case though. It does rebalance data a bit but I still end up with the majority on the first file that existed.
I have attached the script I am running, maybe it is something in the create database/file statements that is the issue.
Basically what I am seeing is to start off with the table is 160MB. I then add the file groups and rebuild all indexes on the table. The first file is then about 100MB and each of the three other files are about 20MB. I would expect them all to be the same size.
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Apr 28, 2014
We had 3 Availability Groups set up in SQL 2012 last year but they were poorly named so I am just looking to rename them but there doesn't seem to be any command for it that I can find.Can they not be renamed once created? I guess I could just create new ones and move the DB's into them but just thought I would check!
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Jul 30, 2014
We have a large Datawarehouse and the size is 50TB.. The tables are placed in filegroups based on the schema like fact, dimensions, raw data each sit on seperate filegroups. I am thinking will it make sense to seperate the large facts which are having billions of rows so that they reside on filegroups on their own..
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Aug 14, 2014
I have several 2012 availability groups running on a cluster. I have one database that is bulk loaded every 30 minutes. The DB is about 1 GB in size. To be on the availability group it has to be set to full recovery mode, but simple or even bulk would obviously be better. Is there a better way to handle the transaction log size other than to run a backup after each bulk load causing extra overhead? With mirrors you could use simple, but since those are going away . . .
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Aug 15, 2014
I would like synchronizing all the missing objects (logins, agent jobs, SSIS, and anything else that I've missed) across SQL 2012 Availability Groups.
I would like to be able to able to automate this process....
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Mar 20, 2015
We have a sorted data that looks like the first 3 columns below, and fourth colum is what I want to create)
Shift_start meal_break shift_endShift ID
1 0 0 1
0 0 0 1
0 0 1 1
1 0 0 2
0 0 0 2
0 0 1 2
I need to find a method to assign unique Shift IDS to rows that correspond to a single shift. For instance, the first shift would begin on the first row when shift_start flag is turned on, and end on the third row when shift_end flag is turned on.
Can I do this in SQL ?...some kind of grouping ?
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Sep 8, 2015
We have some tables that are bulk-loaded every day and they do not have RI to the other tables in the database.
To ease pressure on the logs, I had the idea of spinning them off to another database on the same AG in simple or bulk-load recovery model and using synonyms to point to them so the code base would not need changing.
I know an earlier bug in 2005 existed that basically made the query analyzer ignore indexes if a table was accessed via a synonym.
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Sep 15, 2015
We have multiple SQL 2012 SQL servers setup in an alwaysOn availability groups. Where should we schedule the re-index? We have Server1 as the primary and 2 secondaries Server2 and Server3. Are their any tricks to have it run on which ever one is the primary?
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Jun 5, 2014
I have a two node SQL 2012 AlwaysOn HADR cluster (v11.0.3412) with 4 availability groups configured. The AG groups are set to synchronous mode and the secondary is not readable (we do not want the synchronous replica readable so we do not risk any reads causing contention so we maintain fast performance).
On the secondary we are getting a persistent failure with the Data Collector job called Collection_Set_3_Upload. The failure occurs within the second job step. That job step is executing the following command:
dcexec -u -s 3 -i "$(ESCAPE_DQUOTE(MACH))$(ESCAPE_DQUOTE(INST))"
The error message is as follows:
Log Job History (collection_set_3_upload) Step ID 2 Server CLUSTERNODE2
Job Name collection_set_3_upload
Step Name collection_set_3_upload_upload
Duration 00:00:07
[Code] ....
I know I can prevent this error message by enabling readable secondaries, but we do not want this.
I have tried stopping the data collection jobs and purging the cache directory but to no avail. It will succeed the first time then persistently fail again with the same message every time after that.
In addition, if I set the one failing AG group to readable secondary the job succeeds. So that means that 3/4 work fine, only this one is having an issue.
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Sep 17, 2014
When the database is configured for mirroring and you want to do partitioning on that database, How can we do? Is this similar process or any variation there while adding file groups and files? The partition will reflect in the mirroring database also?
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Oct 22, 2014
Approach 1:
Prod - shared storage between server 1 and 2
Server1: clustered SQL instance with availability group as primary
Server2: Passive server for clustered instance of PROD
DR - shared storage between server 1 and 2
Server1: Clustered SQL instance with availability group as replica
Server2: Passive server for clustered instance of DR
Approach 2: Using replicated SAN
Prod -
Server 1: Standalone instance with availability group as Primary
Server 2:Standalone instance with availability group as replica
DR -
Server 1: Offline until Disk group 1 (Prod server 1) has been broken and brought online at DR
Server 2: Offline until Disk group 2 (Prod server 2) has been broken and brought online at DR
Both these approaches will work wont they? I have only built and played with normal availability groups across servers, not mixing it with clustered instance replicated SAN
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Jan 16, 2015
I have some data where a bit value changes over time and I want to rank it by the repeating groups, how do I write the SQL so that I get the result below?
I want to sort by create date, and every time the bit changes value we start the rank over.
If I partition by the bit field, it will just group the entire data set by the bit field.
Bit CreateDate Rank
1 3/15/2014 1
1 3/14/2014 2
0 3/9/2014 1
0 3/8/2014 2
0 3/6/2014 3
1 3/4/2014 1
0 2/28/2014 1
0 2/20/2014 2
0 2/15/2014 3
0 2/10/2014 4
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Jun 9, 2015
I inherited a SQL 2012 Ent server sitting on a 2008R2 server using AlwaysOn High Availability, two nodes.
Available Mode: Synchronous commit
Failover Mode: Manual
Connection in Primary role: Allow all connections
Readable secondary: No
seesion timeout: 10
Somebody decided to give SQL server priority boost so I need to change this ASAP. So I plan on doing the following.
1. Manually fail over to the secondary, which does not have the priority boost set to true
2. change the setting
3. restart the service
4. Manually fail over
My question is with the service restart. How does SQL handle if the DB changes on the new primary while the secondary is having the service restarted. Where can I see if the DB are sync again or if not where are they in the sync process.
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Sep 15, 2015
I have a below table as:
IF OBJECT_ID('tempdb..#Test') IS NOt NULL
DROP TABLe #Test
--===== Create the test table with
create table #Test([Year] float,
Age Int,
)
INSERT INTO #Test
([Year], Age)
[Code]...
I queried below to get additional column
Select *,row_number() over(partition by [Year] order by Age) as RN from #Test as
YearAgeRN
2014301
2014312
2014323
2015251
2015262
2015273
2015284
2015295
i want one more addtional column (Desired Output) with max of RN in each group as below"
YearAgeRNDesired output
20152515
20152625
20152735
20152845
20152955
20143013
20143123
20143233
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Oct 14, 2015
I am using SQL2014 with HA/AG groups and was adding an extra listener when I used the incorrect IP address. i had thought the 'remove' button would work, but it does not. Also I tried deleting it manually:
delete from sys.availability_group_listener_ip_addresses where listener_id = '26d37cdb-5a6f-43a0-ab0c-f4343eeac0f2'
delete from sys.availability_group_listeners where group_id = '6B060505-CDDC-44B6-A9AD-38FC6AD4A7AA'
Ad hoc updates to system catalogs are not allowed.How can I remove the invalid IP?
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Aug 21, 2014
OK, so I have:
- 500 GB DW
- 5 GB in smaller DBs
- 220 GB TempDB
- 350 GB in Log files.
My machine is Fujitsu Primergy 64 cores (with HT) and 192 GB RAM.
I have several IO locations:
- 540 GB in-server HDD 15k RAID10
- 1 TB HDD 15k RAID10 on SAN (separete controller)
- 2 TB HDD 15k RAID10 on SAN (same controlller as below)
- 800GB SSD RAID10 on SAN (same controller as above)
Data warehouse has 2 fact tables that are absolutely crucial and quite large.
Now i want to organize DB into several Filegroups and put them on different drives. Filegroups I'm thinking of:
- FILEGROUP1: for 1st crucial Fact Table
- FILEGROUP2: for 2nd crucial Fact Table
- FILEGROUP3: for tempDB
- FILEGROUP4: for dimensions data
- FILEGROUP5: for the rest of facts data
- FILEGROUP6: for dimensions indexes
- FILEGROUP7: for the rest of facts indexes
- FILEGROUP8: for 1 log file of one smaller DB (its in full-recovery and its quite large)
- FILEGROUP9: for the rest of log files
- FILEGROUP10: others
How should I organize them across available drives? I was thinking about sth like:
800 GB SSD: FILEGROUPS 1-3
2 TB RAID10: FILEGROUPS 5+7+8
1 TB RAID10: FILEGROUPS 4+6+10
540 GB in-server: FILEGROUP 9
I know that having multiple filegroups on the same drive is pointless regarding performance, but in future i could actually add some more drives, so i want to separate them now.
Also - how much files per filegroups should i create? Considering 1 or 2. Except TempDB where I am going for 4.
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Jan 6, 2004
Im trying to select rows on the following criteria
My app has a user that can have x jobs, each job has related entries which are marked has unread or read. I need to return any jobs that contain any unread entries also I need to return other jobs that have no entries marked as read.
I am able to return the following:
Comment UnReadMy Job 164
Comment UnReadFor Cam 166
Comment ReadThe Job 157
Comment ReadThird 159
Comment ReadMy Job 164
On Site Visit ReadMy newest job for log test 167
but as you can see jobid 164 appears in both groups and I need it to be one or the other
I tried using the if exists statement and was only able to return one group either unread or read, not both. I've tried everything but I'm new and I figure that theres got to be a more elegant way. Heres my sql:
CREATE PROCEDURE spGetJobsByUnreadAndReadByUserID
@UserID INT
AS
BEGIN
IF EXISTS(SELECT DISTINCT Master_Jobs.JobID, Profiles.ProfileDescriptor, Backup_UserNotes.BackUp_Read, Master_Jobs.Job_Title, Master_Jobs.Contact,
Master_Jobs.Due_Date, Master_Jobs.Due_Time, Master_Jobs.Next_Action, Master_Jobs.By_Who
FROM Master_Jobs INNER JOIN
Note ON Master_Jobs.JobID = Note.FK_JobID INNER JOIN
Backup_UserNotes ON Note.NoteID = Backup_UserNotes.BackUp_NoteID INNER JOIN
User_Notes ON Note.NoteID = User_Notes.FK_UN_NoteID INNER JOIN
Job_Assignments ON Master_Jobs.JobID = Job_Assignments.FK_Master_JobID INNER JOIN
Profiles ON Master_Jobs.FK_ProfileID = Profiles.ProfileID INNER JOIN
Users ON Backup_UserNotes.BackUp_UserID = Users.UserID AND User_Notes.FK_UN_UserID = Users.UserID AND
Job_Assignments.UserID = Users.UserID
WHERE Users.UserID = @UserID AND-- Note.FK_UserID = User_Notes.FK_UN_UserID AND
BackUp_Read = 'UnRead')
BEGIN
SELECT DISTINCT Master_Jobs.JobID, Profiles.ProfileDescriptor, Backup_UserNotes.BackUp_Read, Master_Jobs.Job_Title, Master_Jobs.Contact,
Master_Jobs.Due_Date, Master_Jobs.Due_Time, Master_Jobs.Next_Action, Master_Jobs.By_Who
FROM Master_Jobs INNER JOIN
Note ON Master_Jobs.JobID = Note.FK_JobID INNER JOIN
Backup_UserNotes ON Note.NoteID = Backup_UserNotes.BackUp_NoteID INNER JOIN
User_Notes ON Note.NoteID = User_Notes.FK_UN_NoteID INNER JOIN
Job_Assignments ON Master_Jobs.JobID = Job_Assignments.FK_Master_JobID INNER JOIN
Profiles ON Master_Jobs.FK_ProfileID = Profiles.ProfileID INNER JOIN
Users ON Backup_UserNotes.BackUp_UserID = Users.UserID AND User_Notes.FK_UN_UserID = Users.UserID AND
Job_Assignments.UserID = Users.UserID
WHERE Users.UserID = @UserID AND-- Note.FK_UserID = User_Notes.FK_UN_UserID AND
BackUp_Read = 'UnRead'
ORDER BY BackUp_Read ASC
END
ELSE
BEGIN
SELECT DISTINCT Master_Jobs.JobID, Profiles.ProfileDescriptor, Backup_UserNotes.BackUp_Read, Master_Jobs.Job_Title, Master_Jobs.Contact,
Master_Jobs.Due_Date, Master_Jobs.Due_Time, Master_Jobs.Next_Action, Master_Jobs.By_Who
FROM Master_Jobs INNER JOIN
Note ON Master_Jobs.JobID = Note.FK_JobID INNER JOIN
Backup_UserNotes ON Note.NoteID = Backup_UserNotes.BackUp_NoteID INNER JOIN
User_Notes ON Note.NoteID = User_Notes.FK_UN_NoteID INNER JOIN
Job_Assignments ON Master_Jobs.JobID = Job_Assignments.FK_Master_JobID INNER JOIN
Profiles ON Master_Jobs.FK_ProfileID = Profiles.ProfileID INNER JOIN
Users ON Backup_UserNotes.BackUp_UserID = Users.UserID AND User_Notes.FK_UN_UserID = Users.UserID AND
Job_Assignments.UserID = Users.UserID
WHERE Users.UserID = @UserID AND-- Note.FK_UserID = User_Notes.FK_UN_UserID AND
BackUp_Read = 'Read'
ORDER BY BackUp_Read ASC
END
END
GO
Thanks again
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Jul 1, 1998
Are there any tools out there where you can view the data in the transaction logs?
Thanks,
Randall Luce
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Jun 15, 2015
I need to calculate the last two columns (noofgrp and grpsize) No of Groups (count of Clientid) and Group Size (number of clients in each group) according to begtim and endtime. So I tried the following in the first Temp table
GrpSize= count(clientid) over (partition by begtime,endtime) else 0 end
and in the second Temp Table, I have
select
,GrpSize=sum(grpsize)
,NoofGrp=count(distinct grpsize)
From Temp1
The issue is for the date of 5/26, the begtime and endtime are not consistent. in Grp1 (group 1) all clients starts the session at 1030 and ends at 1200 (90 minutes session) except one who starts at 11 and end at 1200 (row 8). For this client since his/her endtime is the same as others, I want that client to be in the first group(Grp1). Reverse is true for the second group (Grp2). All clients begtime is 12:30 and endtime is 1400 but clientid=2 (row 9) who begtime =1230 but endtime = 1300. However, since this client begtime is the same as the rest, I wan that client to be in the second group (grp2) My partition over creates 4 groups rather than two.
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Jan 28, 2008
Hi All,
Hopefully someone can help me with what I'm sure is a very simple question (new to the XML thing). I receive an XML file from "someplace" that I need to parse out using the XML Source in SSIS. I have SSIS generate me an XSD document, as one isn't provided for me. However, after I do this, SSIS does not show any available external columns to pull data from- the "Columns" section of the source is just blank. I'm pretty sure this has to do with a syntax error in either the XML file that is being provided to me, or the XSD doc that SSIS is generating. Below are both (obviously with data dummied up). Can someone take a look and let me what needs to be changed in either file to get this up and running? I'm looking to grab the AccountNumber, RecordNumber, ProcessedDate, Status, and StatusMessage elements.
XML File:
Code Snippet
<?xml version="1.0" encoding="utf-16"?>
<AccountResponse xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<AccountNumber>S12345678</AccountNumber>
<RecordNumber>AAA1122</RecordNumber>
<ProcessedDate>Monday, January 28, 2008 11:07 AM</ProcessedDate>
<Status>0</Status>
<StatusMessage>Complete</StatusMessage>
</AccountResponse>
XSD File:
Code Snippet
<?xml version="1.0"?>
<xsd:schema xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsd="http://www.w3.org/2001/XMLSchema" attributeFormDefault="unqualified" elementFormDefault="qualified">
<xs:element name="AccountResponse">
<xs:complexType>
<xs:sequence>
<xs:element minOccurs="0" name="AccountNumber" type="xs:string" />
<xs:element minOccurs="0" name="RecordNumber" type="xs:string" />
<xs:element minOccurs="0" name="ProcessedDate" type="xs:string" />
<xs:element minOccurs="0" name="Status" type="xs:unsignedByte" />
<xs:element minOccurs="0" name="StatusMessage" type="xs:string" />
</xs:sequence>
</xs:complexType>
</xs:element>
</xsd:schema>
Thanks!
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Mar 2, 2015
I have a report in SSRS2012. It was copied from SSRS2005 quite recently, as we have upgraded. The SQL developer said that it didn't need any code changes, as he had some kind of tool to test code problems between the two versions. The report has a table, with 5 row groups, and one detail row. The table is setup as follows:
Name Sales Costs Profit
Group1
Group2
Group3
Group4
Group5
DetailsRow
When I run this report using the Report Manager website from SSRS2005, and then export to Excel 2013, I get the 6 row groups in Excel, no problem whatsoever. I can drill into each group in Excel, using the group drilldown column on the left hand side. This works the same as the Report Manager website.
If I run the exact same report from the Report Manager website in SSRS2012, the Report Manager result is the same as SSRS2005 - all the row groups are present, and the drilldown works fine. However, the export to Excel has issues with the groups. There are only 3 row groups showing in Excel, along with a column group added for no apparent reason.
Drilling into each group shows inconsistent details, and there is no apparent logic as to what is shown within each group. I should also mention, that this issue with groups is seen on all my reports which have groups, not just this report.
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Jan 25, 2008
I have a new SQL 2005 (SP2) Reporting Services server to which I've just upgraded and deployed some SSRS 2000 reports.
I have a subreport that contains a matrix with two groups. The report data seems to be inexplicably repeating the data for the first row in the group for all rows in the group. Example:
ID1
ID2
DisplayData
1
1
A
1
2
B
1
3
C
2
1
A
2
2
B
2
3
C
Parent group is on ID1, child group is on ID2, report would show:
1
1
A
2
A
3
A
2
1
A
2
A
3
A
Is this a matrix bug in 2005 SP2, or do I need to do something differently? I can no longer pull a comparison version from an SSRS 2000 server to verify, but I believe it was working as expected before...
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