T-SQL (SS2K8) :: Local Partitioned Views
May 13, 2014
SQL 2008R2, Standard on Windows 2008R2 Enterprise.I have implemented a set of local partitioned views to facilitate multi-threading in one of our applications.Testing with SQL and the insert, update, Delete all work fine. However the inserts from SSIS are Bulk and then fail.According to all I have read I should be able to add "instead of Trigger" for the insert and it should work fine. URL....
I have created instead of triggers for insert and delete and again they work fine when I test them with T-SQL but fail in the SSIS package. The error message is that the view is not updateable.
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Aug 23, 2006
Hi,
I've starting to explore the Distributed Partitoned Views, in order to use it in the next project, and I've found the article:
"MS SQL Server Distributed Partitioned Views"
By Don Schlichting
I came across the following problem:
While running sample:
USE test
GO
CREATE VIEW AllAuthors
AS
SELECT *
FROM AuthorsAM,
TEST1.test.dbo.AuthorsNZ
GO
I got the error message:
Server: Msg 4506, Level 16, State 1, Procedure AllAuthors, Line 5
Column names in each view or function must be unique. Column name 'au_lname' in view or function 'AllAuthors' is specified more than once.
Could anyone please explain? Can't i use the same column names in both tables?
Regards,
Yifat
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Aug 17, 2001
I would like to break up a very large table into about ten smaller ones. With partitioning to be efficient the columns in the check constraint need to be used when accessing the view. The problem is the table has a composite primary key made up of LocationID/ProductID. With another composite index on ProductID/LocationID. This is accessed both ways from our applications.
I would like to partition the table by LocationID. But then when called by ProductID a scan of all tables in the view would have to be done.
In Oracle there is something called a global index that would solve this. Is there anything similar in SQL Server or does anybody have a work around?
Thanks,
Rob
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Jul 20, 2005
Hello,I have a large set of data that I have set up as a partitioned view.The view is partitioned by a datetime column and the individual tableseach represent one month's worth of data. I need to keep at least twoyear's worth of data at all times, but after two years I can archivethe data. A sample of the code used is below. It is simplified forspace reasons.My question is, how do other people maintain the database in this typeof scenario? I could create all of the tables necessary for the nextyear and then go through that at the end of each year (archive tablesover two years, add new tables, and change the view), but I was alsothinking that I might be able to write a stored procedure that runsonce a month and does all three of those tasks automatically. It seemslike a lot of dynamic SQL code though for something like that.Alternatively, I could write VB code to handle it in a DTS package.So, my question again is, how are others doing it? Any suggestions?Thanks!-Tom.CREATE TABLE [dbo].[Station_Events_200401] ([event_time] [datetime] NOT NULL ,[another_column] [char] (8) NOT NULL )GOCREATE TABLE [dbo].[Station_Events_200402] ([event_time] [datetime] NOT NULL ,[another_column] [char] (8) NOT NULL )GOCREATE VIEW Station_EventsASSELECT event_time,another_columnFROM Station_Events_200401UNION ALLSELECT event_time,another_columnFROM Station_Events_200402GO
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Jul 14, 2006
Hi everyone,
I have some doubts about distributed partitioned views.
When we create a distributed partitioned view whcih include three server, do we have tocreate this same distributed partitioned view in that three server in order to make each server to see adn especially modify it ?
Thanks
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Dec 10, 2002
Hi, I am using sql2000 ent edition. I have a partitioned view based on 8 tables. My selects and inserts are fine. But, when I run a delete on the view based on a query on the paritioned column, I get a "Transaction (Process ID 149) was deadlocked and has been chosen as a victim".
I looked at the query plan and it was showing a parallel query on all the underlying tables. So, I put the Option(maxdop 1), using only one processor and the delete worked fine.
Does anybody know why? is parallel query create deadlocks? is there any known problems with deletes on partitioned views?
same question for updates. I think I have the same problem for updates.
Any help will be useful.
thanks!!
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May 8, 2007
From BOL...
CHECK constraints are not needed for the partitioned view to return the correct results. However, if the CHECK constraints have not been defined, the query optimizer must search all the tables instead of only those that cover the search condition on the partitioning column. Without the CHECK constraints, the view operates like any other view with UNION ALL. The query optimizer cannot make any assumptions about the values stored in different tables and it cannot skip searching the tables that participate in the view definition.
Then why am I getting index scans on my partitioning column on tables that fail the search value based on their check constraint?
Not looking for an answer because I know the query optimizer is a fickle b*tch and I did not post any code, but I needed to rant.
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May 12, 2008
Thanks in advance in reading this post ! I'm facing a situation in sql server 2000 sp4 with partitioned views.
I have a partition views that joins about 10 tables, in each table there is a check constraint.
For example, if a exec a select count(*) from VIEW where col1 = '20080101' , it goes for the table that has data for '20080101' .
If I exec a select col1,col2,col3,col4 from VIEW where col1='20080101', it goes to all tables and make an index seek.
I want the beaviour of query 1, beause it is just looking on 1 table and not one the 10.
Thanks in advance !
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Jan 1, 2004
someone please tell me if i can bcp or dts data in to partition views
it is failing with the error the bulk operation does not support this
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Aug 8, 2005
I have a partitioned view sitting over several tables and I'm slowlyapproaching the 256 number. Can anybody confirm if there is such alimit for the maximum number of tables that a partitioned view canhold?If this is true, does anybody have any suggestions or ideas to workaround this max limit?TIA!
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Jul 20, 2005
/*problem: Trying to get partitioned views to "prune" unneededpartitions fromselect statements against the partitioned view. There are 5partitionedtables. Each with a check constraint based on a range of formula_idcolumn.Test: Run this script to create the 5 partitioned tables and thepartitioned view. Thenrun the explain plans on the select statements at the end of thescript and see that wecan only prune if we give a seemingly superfluous is not nullcriteria in addition tothe formula_id.Ideal: We want to only have to use the formula_id in the selectstatement to prune.*//*note: you may get errors on the drops first time run*/drop table dbo.cs_working_e2goCREATE TABLE dbo.cs_working_e2 (formula_id int NOT NULLCONSTRAINT formula_id_e14CHECK (formula_id between 1and 1000),submission_id int NOT NULL,node_id int NOT NULL,reference_year smallint NOT NULL,observation_period datetime NOT NULL,authority_flag tinyint NOT NULLCONSTRAINT ONE_DEFAULT3436DEFAULT 1CONSTRAINT Binary_flag_rule667CHECK (authority_flag IN(0, 1)),interpolated_flag tinyint NOT NULLCONSTRAINT ZERO_DEFAULT6926DEFAULT 0CONSTRAINT Binary_flag_rule668CHECK (interpolated_flag IN(0, 1)),observation_value decimal_datatype NOT NULL,time_created smalldatetime NOT NULLCONSTRAINTCURRENT_DATE_DEFAULT1807DEFAULT getdate(),CONSTRAINT XPKcs_working_e2PRIMARY KEY NONCLUSTERED (formula_id, submission_id,node_id, reference_year, observation_period)--ON "INDEXES")--ON "WORKING"goCREATE UNIQUE CLUSTERED INDEX XAK1cs_working_e2 ON dbo.cs_working_e2(submission_id ASC,formula_id ASC,node_id ASC,authority_flag ASC,observation_period ASC,reference_year ASC,observation_value ASC)goCREATE INDEX XIE1cs_working_e2 ON dbo.cs_working_e2(node_id ASC,authority_flag ASC,formula_id ASC,observation_period ASC,reference_year ASC,observation_value ASC)--ON "INDEXES"godrop table dbo.cs_working_indexes2goCREATE TABLE dbo.cs_working_indexes2 (formula_id int NOT NULLCONSTRAINT formula_id_indexes14CHECK (formula_id between7001 and 9000),submission_id int NOT NULL,node_id int NOT NULL,reference_year smallint NOT NULL,observation_period datetime NOT NULL,authority_flag tinyint NOT NULLCONSTRAINT ONE_DEFAULT3437DEFAULT 1CONSTRAINT Binary_flag_rule669CHECK (authority_flag IN(0, 1)),observation_value decimal_datatype NOT NULL,interpolated_flag tinyint NOT NULLCONSTRAINT ZERO_DEFAULT6927DEFAULT 0CONSTRAINT Binary_flag_rule670CHECK (interpolated_flag IN(0, 1)),time_created smalldatetime NOT NULLCONSTRAINTCURRENT_DATE_DEFAULT1808DEFAULT getdate(),CONSTRAINT XPKcs_working_indexes2PRIMARY KEY NONCLUSTERED (formula_id, submission_id,node_id, reference_year, observation_period)--ON "INDEXES")--ON "WORKING"goCREATE UNIQUE CLUSTERED INDEX XAK1cs_working_indexes2 ONdbo.cs_working_indexes2(submission_id ASC,formula_id ASC,node_id ASC,authority_flag ASC,observation_period ASC,reference_year ASC,observation_value ASC)goCREATE INDEX XIE1cs_working_indexes2 ON dbo.cs_working_indexes2(node_id ASC,authority_flag ASC,formula_id ASC,observation_period ASC,reference_year ASC,observation_value ASC)--ON "INDEXES"godrop table dbo.cs_working_other2goCREATE TABLE dbo.cs_working_other2 (formula_id int NOT NULLCONSTRAINT formula_id_other14CHECK (formula_id >= 9001),submission_id int NOT NULL,node_id int NOT NULL,reference_year smallint NOT NULL,observation_period datetime NOT NULL,authority_flag tinyint NOT NULLCONSTRAINT ONE_DEFAULT3438DEFAULT 1CONSTRAINT Binary_flag_rule671CHECK (authority_flag IN(0, 1)),observation_value decimal_datatype NOT NULL,interpolated_flag tinyint NOT NULLCONSTRAINT ZERO_DEFAULT6928DEFAULT 0CONSTRAINT Binary_flag_rule672CHECK (interpolated_flag IN(0, 1)),time_created smalldatetime NOT NULLCONSTRAINTCURRENT_DATE_DEFAULT1809DEFAULT getdate(),CONSTRAINT XPKcs_working_other2PRIMARY KEY NONCLUSTERED (formula_id, submission_id,node_id, reference_year, observation_period)--ON "INDEXES")--ON "WORKING"goCREATE UNIQUE CLUSTERED INDEX XAK1cs_working_other2 ONdbo.cs_working_other2(submission_id ASC,formula_id ASC,node_id ASC,authority_flag ASC,observation_period ASC,reference_year ASC,observation_value ASC)goCREATE INDEX XIE1cs_working_other2 ON dbo.cs_working_other2(node_id ASC,authority_flag ASC,formula_id ASC,observation_period ASC,reference_year ASC,observation_value ASC)--ON "INDEXES"godrop table dbo.cs_working_p1q12goCREATE TABLE dbo.cs_working_p1q12 (formula_id int NOT NULLCONSTRAINT formula_id_p1q114CHECK (formula_id between3001 and 7000),submission_id int NOT NULL,node_id int NOT NULL,reference_year smallint NOT NULL,observation_period datetime NOT NULL,authority_flag tinyint NOT NULLCONSTRAINT ONE_DEFAULT3439DEFAULT 1CONSTRAINT Binary_flag_rule673CHECK (authority_flag IN(0, 1)),interpolated_flag tinyint NOT NULLCONSTRAINT ZERO_DEFAULT6929DEFAULT 0CONSTRAINT Binary_flag_rule674CHECK (interpolated_flag IN(0, 1)),observation_value decimal_datatype NOT NULL,time_created smalldatetime NOT NULLCONSTRAINTCURRENT_DATE_DEFAULT1810DEFAULT getdate(),CONSTRAINT XPKcs_working_p1q12PRIMARY KEY NONCLUSTERED (formula_id, submission_id,node_id, reference_year, observation_period)--ON "INDEXES")--ON "WORKING"goCREATE UNIQUE CLUSTERED INDEX XAK1cs_working_p1q12 ONdbo.cs_working_p1q12(submission_id ASC,formula_id ASC,node_id ASC,authority_flag ASC,observation_period ASC,reference_year ASC,observation_value ASC)goCREATE INDEX XIE1cs_working_p1q12 ON dbo.cs_working_p1q12(node_id ASC,authority_flag ASC,formula_id ASC,observation_period ASC,reference_year ASC,observation_value ASC)--ON "INDEXES"godrop table dbo.cs_working_pq2goCREATE TABLE dbo.cs_working_pq2 (formula_id int NOT NULLCONSTRAINT formula_id_pq14CHECK (formula_id between1001 and 3000),submission_id int NOT NULL,node_id int NOT NULL,reference_year smallint NOT NULL,observation_period datetime NOT NULL,authority_flag tinyint NOT NULLCONSTRAINT ONE_DEFAULT3440DEFAULT 1CONSTRAINT Binary_flag_rule675CHECK (authority_flag IN(0, 1)),interpolated_flag tinyint NOT NULLCONSTRAINT ZERO_DEFAULT6930DEFAULT 0CONSTRAINT Binary_flag_rule676CHECK (interpolated_flag IN(0, 1)),observation_value decimal_datatype NOT NULL,time_created smalldatetime NOT NULLCONSTRAINTCURRENT_DATE_DEFAULT1811DEFAULT getdate(),CONSTRAINT XPKcs_working_pq2PRIMARY KEY NONCLUSTERED (formula_id, submission_id,node_id, reference_year, observation_period)--ON "INDEXES")--ON "WORKING"goCREATE UNIQUE CLUSTERED INDEX XAK1cs_working_pq2 ONdbo.cs_working_pq2(submission_id ASC,formula_id ASC,node_id ASC,authority_flag ASC,observation_period ASC,reference_year ASC,observation_value ASC)goCREATE INDEX XIE1cs_working_pq2 ON dbo.cs_working_pq2(node_id ASC,authority_flag ASC,formula_id ASC,observation_period ASC,reference_year ASC,observation_value ASC)--ON "INDEXES"go----- create view ---------drop view cs_working2goCREATE VIEW cs_working2 (submission_id, node_id, reference_year,observation_period, formula_id, observation_value, interpolated_flag,time_created, authority_flag) ASSELECT we.submission_id, we.node_id, we.reference_year,we.observation_period, we.formula_id, we.observation_value,we.interpolated_flag, we.time_created, we.authority_flagFROM cs_working_e2 weunion allSELECT wo.submission_id, wo.node_id, wo.reference_year,wo.observation_period, wo.formula_id, wo.observation_value,wo.interpolated_flag, wo.time_created, wo.authority_flagFROM cs_working_other2 wounion allSELECT wpq.submission_id, wpq.node_id, wpq.reference_year,wpq.observation_period, wpq.formula_id, wpq.observation_value,wpq.interpolated_flag, wpq.time_created, wpq.authority_flagFROM cs_working_pq2 wpqunion allSELECT wp1q1.submission_id, wp1q1.node_id, wp1q1.reference_year,wp1q1.observation_period, wp1q1.formula_id, wp1q1.observation_value,wp1q1.interpolated_flag, wp1q1.time_created, wp1q1.authority_flagFROM cs_working_p1q12 wp1q1union allSELECT wi.submission_id, wi.node_id, wi.reference_year,wi.observation_period, wi.formula_id, wi.observation_value,wi.interpolated_flag, wi.time_created, wi.authority_flagFROM cs_working_indexes2 wigo--- sample selects against partitioned view -----/*--run explain plan here and see all 5 partitions being pulledselect * from cs_working--run explain plan here and see just the 1 partitionselect * from cs_working_e2--run explain plan and see this is not pruning to the needed partitionselect * from cs_workingwhere formula_id = 1--run explain plan and see it is now pruning to the needed partitionselect * from cs_workingwhere formula_id = 1and submission_id is not null--run explain plan and see it is now pruning to the needed partition,tooselect * from cs_workingwhere formula_id = 1and observation_value is not null*/
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Apr 21, 2003
I'm trying to do some researh on the use of SQL's DPV. I'm looking for feedback from people who've actually done this production to know more about the design challenges and level of added administration required. Any information will be much appreciated. Thanks.
aK
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Apr 24, 2015
We have are SQL 2014 Standard edition, I have a situation where-in I plan to partition a table now since table partition is not supported in standard version I thought about Partitioned views however now I am stuck where I cant make the view writable because of the identity column in the base table.
Do I have any other option in this case?
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Mar 16, 2008
Hi All,
My database's design is set out here. In summary, I'm trying to model a Stock Exchange for a Technical Analysis application written using Visual C++. In order to create the hierachy I'm using a Nested Set Model. I'm now trying to write code to add and delete equities (or, more generically, nodes) to the database using a form presented to the user in my application. I have example SQL code to create the necessary add and delete procedures that calculate the changes to the values in the lft and rgt columns, but these examples focus around a single table, where as my design aggregates rows from multiple tables using UNION ALL:
Code Snippet
CREATE VIEW vw_NSM_DBHierarchy -- Nested Set Model Database Hierarchy
AS
SELECT clmStockExchange, clmLeft, clmRight FROM tblStockExchange_
UNION ALL
SELECT clmMarkets, clmLeft, clmRight FROM tblMarkets_
UNION ALL
SELECT clmSectors, clmLeft, clmRight FROM tblSectors_
UNION ALL
SELECT clmEPIC, clmLeft, clmRight FROM tblEquities_
Essentially, I'm trying to create an updateable view but I receive the error "UNION ALL View is not updatable because a partitioning column was not found". I suspect that my design in wrong or lacks and this problem is highlighting the design flaws so any suggestions would be greatly appreciated.
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Mar 29, 2015
I've been using partitioned views in the past and used the check constraint in the source tables to make sure the only the table with the condition in the where clause on the view was used. In SQL Server 2012 this was working just fine (I had to do some tricks to suppress parameter sniffing, but it was working correct after doing that). Now I've been installing SQL Server 2014 Developer and used exactly the same logic and in the actual query plan it is still using the other tables. I've tried the following things to avoid this:
- OPTION (RECOMPILE)
- Using dynamic SQL to pass the parameter value as a static string to avoid sniffing.
To explain wat I'm doing is this:
1. I have 3 servers with the same source tables, the only difference in the tables is one column with the server name.
2. I've created a CHECK CONSTRAINT on the server name column on each server.
3. On one of the three server (in my case server 3) I've setup linked server connections to Server 1 and 2.
4. On Server 3 I've created a partioned view that is build up like this:
SELECT * FROM [server1].[database].[dbo].[table]
UNION ALL SELECT * FROM [server2].[database].[dbo].[table]
UNION ALL SELECT * FROM [server3].[database].[dbo].[table]5. To query the partioned view I use a query like this:
SELECT *
FROM [database].[dbo].[partioned_view_name]
WHERE [server_name] = 'Server2'
Now when I look at the execution plan on the 2014 environment it is still using all the servers instead of just Server2 like it should be. The strange thing is that SQL 2008 and 2012 are working just fine but 2014 seems not to use the correct plan.
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Jul 7, 2015
I have some Partitioned Views and on all queries using a table for the in clause, table elimination isn't happening.
Check Constraint is on the oid column
This works as expected, only goes to 2 tables;
SELECT *
FROM view_oap_all
WHERE oid IN ( '05231416529481', '06201479586431' )
This works as expected, only goes to 2 tables;
SELECT *
FROM view_oap_all
WHERE oid IN ( SELECT oid
FROM owners
WHERE oid IN ( '05231416529481', '06201479586431' ) )
This is checking all tables (headingnames are unique), ive tried this for the last 3 hours on many different tables containing the oid column.
Unless I write the oid as in the above queries it just doesn't work.
SELECT *
FROM view_oap_all
WHERE oid IN ( SELECT oid
FROM owners
WHERE headingname = 'TestSystem' )
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Oct 13, 2015
I have a few databases that are using Partitioned Views in order to manage the table sizes and they all work well for our purposes. Recently I noticed a table that had grown to 400+ million rows and want to partition it as well, so I went about creating new base tables based on the initial table's structure, just adding a column to both table and primary key to be able to build a Partitioned View on them.The first time around, on a test system, everything worked flawlessly but when I put the same structure in place on the production system I get the dreaded "UNION ALL view 'DBName.dbo.RptReportData' is not updatable because the primary key of table '[DBName].[dbo].[RptReportData_201405]' is not included in the union result. [SQLSTATE 42000] (Error 4444)" error.
I have searched high and low and everything I see points to a few directives in order for a UNION ALL view to be updatable:
- Need a partitioning column that is part of the primary key
- Need a CHECK constraint that make the base tables exclusive, i.e. data cannot belong to more than one table
- Cannot have IDENTITY or calculated columns in the base tables
- The INSERT statement needs to specify all columns with actual values, i.e. not DEFAULT
Well, according to me, my structure fulfills these conditions but the INSERT fails anyway. CREATE scripts below scripted from SQL Server. I only modified them to be on a single row - it is easier to verify that they are identical in a text editor that way.
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
SET ANSI_PADDING ON
GO
[code]....
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Dec 17, 2007
I want to find a way to get partition info for all the tables in all the databases for a server. Showing database name, table name, schema name, partition by (maybe; year, month, day, number, alpha), column used in partition, current active partition, last partition (for date partitions I want to know if the partition goes untill 2007, so I can add 2008)
all I've come up with so far is:
Code Block
SELECT distinct o.name From sys.partitions p
inner join sys.objects o on (o.object_id = p.object_id)
where o.type_desc = 'USER_TABLE'
and p.partition_number > 1
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Apr 25, 2008
Is this possible?
here is the situation. I have a DB on one system. I back it up and then restore it to a second system. This second system I run reports off of and I want to create custom views that do not exist on the original system. Can I restore the
backup DB from the remote system without wiping out the custom views on the local system?
I have to do this this way as they won't let us create the views we want on the remote system so the only way we have access to run the reports is by restoring the backup locally.
TIA!
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Feb 24, 2015
declare @filename varchar(255),
@path varchar(255),
@sql varchar(8000),
@sql3 varchar(8000),
[Code].....
i need to set a Apostrophe in front of dir and at the end
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Oct 2, 2014
I have a MySql Database i need to extract data from based on matching info in a local SQL Server database,
I will ultimately need to cycle through 20 of these MySql databases , but the query below is taking 1 minute and 20 plus seconds...Just for one..
Is there a simple tweak that would speed it up?
USE [CAS]
GO
DECLARE @PhoneDB varchar(max),
@SQL NVARCHAR(MAX);
set @PhoneDB = '[PHONEDB_PHI]';
set @SQL = 'SELECT
[Code]....
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Aug 4, 2015
I would like to create a procedure which create views by taking parameters the table name and a field value (@Dist).
However I still receive the must declare the scalar variable "@Dist" error message although I use .sp_executesql for executing the particularized query.
Below code.
ALTER Procedure [dbo].[sp_ViewCreate]
/* Input Parameters */
@TableName Varchar(20),
@Dist Varchar(20)
AS
Declare @SQLQuery AS NVarchar(4000)
Declare @ParamDefinition AS NVarchar(2000)
[code]....
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Apr 3, 2006
Fellow database developers,I would like to draw on your experience with views. I have a databasethat includes many views. Sometimes, views contains other views, andthose views in turn may contain views. In fact, I have some views inmy database that are a product of nested views of up to 6 levels deep!The reason we did this was.1. Object-oriented in nature. Makes it easy to work with them.2. Changing an underlying view (adding new fields, removing etc),automatically the higher up views inherit this new information. Thismake maintenance very easy.3. These nested views are only ever used for the reporting side of ourapplication, not for the day-to-day database use by the application.We use Crystal Reports and Crystal is smart enough (can't believe Ijust said that about Crystal) to only pull back the fields that arebeing accessed by the report. In other words, Crystal will issue aSelect field1, field2, field3 from ReportingView Where .... eventhough "ReportingView" contains a long list of fields.Problems I can see.1. Parent views generally use "Select * From childview". This meansthat we have to execute a "sp_refreshview" command against all viewswhenever child views are altered.2. Parent views return a lot of information that isn't necessarilyused.3. Makes it harder to track down exactly where the information iscoming from. You have to drill right through to the child view to seethe raw table joins etc.Does anyone have any comments on this database design? I would love tohear your opinions and tales from the trenches.Best regards,Rod.
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Oct 2, 2007
We have a 64-bit VM server running SQL Server 2005. The SQL Server on this particular VM server has 6 local instances installed. On the Management Studio logon screen I can type the full name of the local instance and connect to it, however if I press the drop down in the Server name field, choose Browse and select the Local Servers tab there is nothing listed under Database Engines.
Any idea why the 6 local instances don't show up under Database Engines? This is preventing me from installing a vendor application because their installer looks for local SQL Server instances on this server, but if SQL Server won't even show the local instances then the installer doesn't see them either.
Any help is greatly appreciated.
Thanks,
Craig
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Sep 6, 2007
Which is more efficient? One large view that joins >=10 tables, or a few smaller views that join only the tables needed for individual pages?
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Jun 7, 2006
I am facing a problem in connecting to the local database with server name as (local).
I have installed SQL Server 2005 in my machine. When I try to connect to the SQL server with the server name as SUNILKUMAR I am able to connect but when I try to connect to the same server with the server name as (local) I am not able to connect. SUNILKUMAR is my machine name and SQL server is running locally.
if anyone can help me what is the problem in this case it is highly appriciated.
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Dec 21, 2005
Hi Everyone
I am at the stage of architecting my solution
My goal is to develop the system on a windows application and pda
There is a central server which will create a publication called inventory
The laptops which host the windows application will be subscribers to the central server using merge replication
The client now wants the PDA using SQL Mobile to synchronize with the local subscirber database on the laptop using active sync. They dont want to do it via WIFI to the IIS Server at the central server
I have been reading for days and I am still unsure whether this is possible to do.
I know Appforge provide a conduit for palm to access synchronization but not local sql databases
I would appreciate your help immensley
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Jun 28, 2007
Hello.
Newbie here. I've only been using SQL for about a year now and have some minor questions about sql objects that reference other objects.
We have some views which reference other views in the joins. I will call one the primary view and the one being referenced in the joins as the secondary view.
Recently we made changes to the secondary view.
After which the primary views which referenced it would not work because of this change and had to be 'refreshed' by using drop/create scripts which essentially just dropped it and recreated the exact same view. I do not recall the exact error message that was returned other than it seemed to suggest that it could no longer see the secondary view since it had been changed. Nothing in the primary view was changed in any way, just the secondary.
Some here where I work have suggested off hand that this was a recompile of the primary view because the contents of the secondary changed.
My questions are:
1. Exactly why did this happen and is there a proper name for it when it does?
2. The same problem does not seem to occur when we have stored procedures referencing views in the joins which had just been changed. Why is that?
Thanks for any help on the matter. I greatly appreciate it.
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Feb 22, 2007
Hello,
to make a report easier I'm developing it using a view of joined views of joined views.
Is there any significant performance penalty as opposed to just having one big select?
Cheers.
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Mar 6, 2006
Hi! This is my first post and I really need help with Partitioned View. I'm using Sql Server 2000 and I created a partitioned view using 6 tables and now a need to create the table '7' and alter the view. But when i'm trying to insert new data i'm receiving the message: :eek:
"Server: Msg 4416, Level 16, State 5, Line 1
UNION ALL view 'tb_sld_cob_pap' is not updatable because the definition
contains a disallowed construct."
My code is:
drop VIEW tb_sld_cob_pap
GO
CREATE TABLE dbo.tb_sld_cob_pap_7 (
cod_operacao int NOT NULL ,
cod_contrato int NOT NULL ,
sequencial_duplicata int NOT NULL ,
data_sld_pap smalldatetime NOT NULL CHECK ([data_sld_pap] >= '20060201'),
liqex_dia_nom_outros float NULL ,
liqex_dia_moe_outros float NULL,
constraint pk_pap7 primary key (cod_operacao,cod_contrato,sequencial_duplicata,da ta_sld_pap)
)
GO
CREATE INDEX IdxSldCobPap7_1 ON dbo.tb_sld_cob_pap_7(cod_titulo, seq_titulo, data_sld_pap)
GO
CREATE INDEX IdxSldCobPap7_2 ON dbo.tb_sld_cob_pap_7(cod_operacao, seq_ctr_sacado, sequencial_duplicata, data_sld_pap)
GO
ALTER TABLE dbo.tb_sld_cob_pap_6
DROP CONSTRAINT CK__tb_sld_co__data___6C190EBB
GO
ALTER TABLE dbo.tb_sld_cob_pap_6 ADD CONSTRAINT
CK__tb_sld_co__data___6C190EBB CHECK (((([data_sld_pap] >= '20051201') and ([data_sld_pap] < '20060201'))))
GO
create VIEW tb_sld_cob_pap
as
select * from tb_sld_cob_pap_1
union all
select * from tb_sld_cob_pap_2
union all
select * from tb_sld_cob_pap_3
union all
select * from tb_sld_cob_pap_4
union all
select * from tb_sld_cob_pap_5
union all
select * from tb_sld_cob_pap_6
union all
select * from tb_sld_cob_pap_7
My table tb_sld_cob_pap_6 does NOT have data with ([data_sld_pap] >= '20060201').
I'm using this script in other database and I don't have this problem.
Thank you...
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Jun 18, 2007
USE Northwind
GO
CREATE TABLE myTable99_1 (
Accountchar(3)
, Ledgerchar(4)
, PostDatedatetime
, PRIMARY KEY (Account, Ledger)
, CHECK(PostDate> '1/1/1999' and PostDate < '12/31/1999 23:59:59'))
CREATE TABLE myTable99_2 (
Accountchar(3)
, Ledgerchar(4)
, PostDatedatetime
, PRIMARY KEY (Account, Ledger)
, CHECK(PostDate> '1/1/2000' and PostDate < '12/31/2000 23:59:59'))
CREATE TABLE myTable99_3 (
Accountchar(3)
, Ledgerchar(4)
, PostDatedatetime
, PRIMARY KEY (Account, Ledger)
, CHECK(PostDate> '1/1/2001' and PostDate < '12/31/2001 23:59:59'))
CREATE INDEX myTable99_1_IX ON MyTable99_1
(Account, Ledger)
CREATE INDEX myTable99_2_IX ON MyTable99_2
(Account, Ledger)
CREATE INDEX myTable99_3_IX ON MyTable99_3
(Account, Ledger)
GO
CREATE VIEW myView99
AS
SELECT Account
, Ledger
, PostDate
FROM myTable99_1
UNION ALL
SELECT Account
, Ledger
, PostDate
FROM myTable99_2
UNION ALL
SELECT Account
, Ledger
, PostDate
FROM myTable99_3
GO
SELECT * FROM myView99 WHERE Account = 1 AND Ledger = 1
GO
DROP VIEW myView99
DROP TABLE myTable99_1, myTable99_2, myTable99_3
GO
OK, so I thought I knew this, but I'm looking for parallelism...not only am I no getting it, I'm getting an Index scan....is it becuse I didn't put any data in the table? I thought it would stil show my index seek with parallelism
What up, homey?
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Mar 19, 2008
Hello,
I am implementing a table partitioning on our database with TSQL.
At the moment (it is under developing) the data are correctly located in the relavant file group.
Our target is to meke that the oldest partions/File groups can be backup and removed from the database. This to reduce the size of DB (time period is used for partitioning).
Then, if the need arises, restoring the filegroup to make reporting or analysis.
Take care that data are conitnuosly added and thus new File groups are added to represent the new time period (eg: new file group is the new month).
Based on your experience is it possible a solution like that?
Thank
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Sep 28, 2007
When do partitioned tables/indexes become beneficial? When a table has several million rows? Hundreds of millions of rows?
My tables all have clustered indexes based on the bigint identity PK. I am considering partitioning some of the larger tables by year. If the field I use is not part of the current clustered index then I can't use create index to create my partitions? I need to create an empty table for each year and then use the Alter Table switch? I have header/detail/sub-detail tables. As long as I create the partition function using a similar date field the partitions will be able to be joined? How do I insure my indexes will be aligned? Once I set up the partitions I assume new rows will be stored in the proper partitions based on the value of the date field.
I've read BOL, etc & they are good sources for theory but I need a "Building Partitions for Dummies" type paper with step by step explanations. Anything out there like that?
Thanks.
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