I have one partition table "tablea" with partition key dateentry on yearly basis and table have four partition with name y2013,y2014,y2013,y2015 with one partition schema . How I can create partition index on tablea that first time create partition  index  and next time I want to rebuild index only on y2015 partition .Â
Hi all, My question is about Indexs on partition where I have a table with say 5 partitions and I want to create index on partitions and not on the whole table. The objective is that if i create a table level index on a partition table and eventually if I drop one of the partition or add another partition, what will happen to the index? 1) Do I need to re-create the index for the partion which are left after deleting one partition? 2) If a partition is added do I need re-create the index for the whole table or just create the index for that particular new partition?
Let me know if there is any white paper or code available. I have gone through the white paper published "SQL Server 2005" Partitioned Tables and Indexes Author: Kimberly L. Tripp, Founder, SQLskills.com
I am currently investigating the best way to handle partition swapping where the partition scheme is built on several file groups. In order to swap partitions, both partitions need to be on the same file group. In addition, the file groups and partitions are automatically updated once a month meaning that there is a scheduled job that adds a new file group, file group files, and updates the related partition objects.If I am forced to create a new non-partition table on the same file group as the partition of the target table, what would be the best way to create the target table without hard coding the full table definition and clustered index? I know that I can query the systables and syscolumns views to reconstruct a basic SQL statement to build the table definition and views Is there a SQL Server function that I can use to just give me the object definitions? Unfortunately, the OBJECT_ DEFINITION function doesn't apply to tables or indexes. URL....
I am facing issue in generating total sum and daily sum from table ThresholdData.
DailyTransactionAmount should be sum of todays amount in the table TransactionAmount should be sum of all amount in the table.
Basically,
1. I don't want to scan ThresholdData table twice. 2. I don't want to create temporary table/table variable/CTE for this. 3. Is there is any way to make it done in single query.
I hope, where criteria is not possible in partition function. I am trying query something as given below,
SELECT  TransactionDate,   TransactionAmount,   ROW_NUMBER() over (order by TransactionDate) AS TransactionCount,   SUM(TransactionAmount) over (partition by id ) AS TransactionAmount,   SUM(TransactionAmount) over (partition by id ,CONVERT (DATE, @TodaysTransactionDate)) AS DailyTransactionAmount  FROM ThresholdData  WHERE id = @id  AND transactiondate >= dateadd(d,-@TransactionDaysLimit,@TodaysTransactionDate)
I have created a horizontal partition view from 4 physical tables. just wondering how the index works in the partition view: 1) If I need to build an index on a column, do I need to build it on all 4 physical tables? or I just build it on the view? or build it on view and 4 physical tables?
2) If I build it on view, and if I add a table into view, do I need to recreate all indices on the view?
Is there anyway to drop an index at the partition level in SQL 2005 ?There is a way to rebuild at the partition level (assuming this creates)i.e.: alter index ALL on dbo.LP_CQ rebuild partition = 229 ;I want to:1. Drop index(es) at partition level (partitioned by period value (1..400)).2. bulk copy data in (can be 1 or more periods per day).3. Rebuild at Partition level.Thx
I have a table partitioned by month. There are no primary key. There is another table with the same structure that I use to load data for the current month. I can perform partition switch with no problem.
I created non unique index on integer field in both tables. After this change partition switch does not work anymore. Here is an error that I am getting:
'ALTER TABLE SWITCH' statement failed. The table 'dbo.test' is partitioned while index 'IX_test' is not partitioned."
Since couple of days, I am getting a very weird problem on my production environment. Basically, any index operation [rebuild, drop] etc. against an index on a table is getting blocked by [Sleeping,Dormant] connections.
Scenario: I have a Table TableX in database DBX on Server X. This table has a Non-unique, non-clustered index on a NVARCHAR column. This table is accessed by SQL written in a store procedures from Server A via a link server. Both the Servers are SQL 2008 R2 edition.
If I try to run any operation on the index, it get blocked by existing session and keeps on getting blocked by different sessions. Yesterday it was blocked for about 13 hours before I killed the session.
Executing sp_WhoisActive shows few sessions with Host Server A without any sql_text. These sessions actually blocked the indesx operation on the ServerX. These sessions always exist. Sessions details are
I need to setup log shipping from a 2008 Standard to a 2012 Standard server. I have not found any restrictions for this, however, when I want to connect to the 2012 server on the add secondary server page, I receive the following error:'Index was outside the bounds of the array. (Microsoft.SqlServer.Smo)'.
Create Index ind_Item_Name on Item(I_Name); Create Index ind_Item_BC on Item(I_BC); Create Index ind_Item_Company on Item(I_Company); Create Index ind_Item_CompanyFound on Item(I_CompanyFound); create Index ind_Item_i1 on Item(I_Company,I_CompanyFound); create Index ind_Item_i2 on Item(I_CompanyFound,I_Company);
Now this query DOES NOT use index: select I_Name, I_Code, I_MatID, I_BC, I_Company,I_Info1, I_Acquired, I_CompanyFound, 0 as I_Found from Item where (I_Company='102' or I_CompanyFound='102' )
While this one use:
select I_Name, I_Code, I_MatID, I_BC, I_Company,I_Info1, I_Acquired, I_CompanyFound, 0 as I_Found from Item where (I_Company='102' ) UNION select I_Name, I_Code, I_MatID, I_BC, I_Company,I_Info1, I_Acquired, I_CompanyFound, 0 as I_Found from Item where (I_CompanyFound='102' )
Both return the same rows. Is this a bug? I found the following: http://support.microsoft.com/kb/223423
Just wonder if system base tables always use clustered index? I am using SQL Server 2005 and find sys.sysidxstats base table is using heap, not clustered index. Why?
Create Index ind_Item_Name on Item(I_Name); Create Index ind_Item_BC on Item(I_BC); Create Index ind_Item_Company on Item(I_Company);
It is populated with 50 000 records. Searching on indexed columns is fast, but I've run into the following problem: I need to get all distinct companies in the table. I've tried with these two queries, but they both are very slow!
1. "select I_Company from item group by I_Company " - This one takes 19 seconds
2. "select distinct(I_Company) from item" -This one takes 29 secons
When I ran them through the SQL Management Studio and checked the performance plan, I saw that the second one doesn't use index at all ! So I focused on the first... The first one used index (it took it 15% of the time), but then it ran the "stream aggregate" which took 85% of the time ! Actully 15% of 19 seconds - about 2 seconds is pretty much enough for me. But it looks that aggregate function is run for nothing! So is it possible to force the query engine of the SSCE not to run it, since there is actually no aggregate functions in my select clause? According to SQL CE Books online: Group By
"Specifies the groups (equivalence classes) that output rows are to be placed in. If aggregate functions are included in the SELECT clause <select list>, the GROUP BY clause calculates a summary value for each group." It seems the aggregate is run every time, not only when there is an aggregate function.
On our particular database server, we run the Rebuild Index Task (Using classic Maintenance Plan Designer) every night. Running the  script below, I saw that about 77 tables had an avg_fragmentation_in_percentage between 80% and 99% !!
SELECT OBJECT_NAME(ind.OBJECT_ID) AS TableName, ind.name AS IndexName, indexstats.index_type_desc AS IndexType, indexstats.avg_fragmentation_in_percent FROM sys.dm_db_index_physical_stats(DB_ID(), NULL, NULL, NULL, NULL) indexstats INNER JOIN sys.indexes ind ON ind.object_id = indexstats.object_id AND ind.index_id = indexstats.index_id WHERE indexstats.avg_fragmentation_in_percent > 30--You can specify the percent as you want ORDER BY indexstats.avg_fragmentation_in_percent DESC
I dont understand why these tables are highly fragmented after a daily index rebuild! Unless the users are doing heavy inserts/updates/deletes during the day.
A customer wants to implement table partitioning on a replicated table.
They want to hold 13 months of data in the table and roll off the earliest/oldest month to an identical archive table. The table has a date field and partitioning by month makes sense all around.
So SWITCH PARTITION is the obvious solution to this, except for the fact that the table is replicated (transactional w/no subscriber updates).
What are his architectural or practical solutions to using table partitioning and replication?
I am currently re-writing an overnight index defrag procedure and would like to audit indexes in my database - logging the before defrag action" avg fragmentation value and "after defrag action" frag value in an audit table. Â This will be for all databases on the server. Â I have completed the vast majority of it (cycling though all the databases, detecting which indexes need reorganising or rebuilding and inserting the information into a table) but I cannot get the audit values working properly. Â For example, a sample row in my audit table would look like this:
1. I need to make use of in memory engine for my pr-existed develop procedures ,tables ,index. do I need and code changes for application and how to store tables /indexes in OLTP memory
Assume table index may have primary key index as well.
2. If table with one primary index and 2 foreign constraints, 3 non clusters indexed. which one able o load to memory area and how t do that.
3. In memory is lock free zone. usually locks will happpen in RDMS context . how this works without locks.
We have 3 maintenance jobs configured in this particular DB instance:
Daily backup of system database - SubPlan1 (Check Database Integrity Task --> Rebuild Index Task-->Backup Database Task)Daily backup of user databases - Five subplans for each task : (Check DB integrity --> Rebuild Index -->Backup User Database, Backup Log -->Cleanup History)Weekly maintenance - SubPlan1 (Check Database integrity job (system+user DB)Â + rebuild index job (system+user DB) )
PROBLEM: I just noticed that the User DB Rebuild Index task has been running since the 03/04 and the Weekly maintenance plan - subplan1 since the 12/04.
Which job is "safe" to stop without impacting the database?
Please help me how to do the Horizontal table partition?? I have to split the table in to multiple sub tables with same columns and less rows and then I have to use each sub table.
1 HIS_HTTP_LOG a partition table2 REL_HTTP_LOG not a partition table,the same structure of HIS_HTTP_LOGï¼›3 When HIS_HTTP_LOG doesn't exist any index the following executed succeed ALTER PARTITION SCHEME PS_HIS_HTTP_LOG NEXT USED [FG_03] ALTER PARTITION FUNCTION PF_HIS_HTTP_LOG() SPLIT RANGE ('20070331 23:59:59.997') ALTER TABLE TMP_HTTP_LOG SWITCH TO HIS_HTTP_LOG PARTITION 3 4 However when I added the index in HIS_HTTP_LOG and execute the step 3,It made error: a) CREATE INDEX IDX_HIS_HTTP_LOG_001 ON HIS_HTTP_LOG(USERID)ON PS_HIS_HTTP_LOG (STARTIME) b) ALTER PARTITION SCHEME PS_HIS_HTTP_LOG NEXT USED [FG_03] ALTER PARTITION FUNCTION PF_HIS_HTTP_LOG() SPLIT RANGE ('20070331 23:59:59.997') ALTER TABLE TMP_HTTP_LOG SWITCH TO HIS_HTTP_LOG PARTITION 3 ========================= Error messages================================================"ALTER TABLE SWITCH statement failed. There is no identical index in source table 'TMP_HTTP_LOG SWITCH ' for the index 'IDX_HIS_HTTP_LOG_001' in target table 'HIS_HTTP_LOG' ." When I added index in REL_HTTP_LOG ,it gave me the same error message Could you tell me how can I solve the problem !
How do you alter the table to use the new partition (I know ALTER TABLE is in there but BOL doesn't give a valid example with the move option)? I can create the partition but I want to apply it to an existing table with no partition? Thanks
I would like to partition a table having only items posted in the last 24 hours in one filegroup and all others in another. Is there a way that my partition function could contain something like "col1 >= dateadd(d,-1,getdate())" and have items move to the secondary filegroup as they age pst 24 hours?
