Different Query Plans For View And View Definition Statement
Mar 9, 2006
I compared view query plan with query plan if I run the same statement
from view definition and get different results. View plan is more
expensive and runs longer. View contains 4 inner joins, statistics
updated for all tables. Any ideas?
We are trying to create a view that references lengths in both metres and feet.
What we want to do is to create a baselength column which either holds the value of the metres column or calculates the metric value of the feet column if there is no value in the metric column.
We can do all the maths for the calculations etc, it is just putting the IF statement into the view to test the values that we are struggling with.
Write a CREATE VIEW statement that defines a view named Invoice Basic that returns three columns: VendorName, InvoiceNumber, and InvoiceTotal. Then, write a SELECT statement that returns all of the columns in the view, sorted by VendorName, where the first letter of the vendor name is N, O, or P.
This is what I have so far,
CREATE VIEW InvoiceBasic AS SELECT VendorName, InvoiceNumber, InvoiceTotal From Vendors JOIN Invoices ON Vendors.VendorID = Invoices.VendorID
I want to create a view on the table "workorder" that contains a serial id "woid". Another table, "wo_comment" contains multiple comments for each "woid".
I would like to create a view view_workorder with a column "allcomments" that is basically a concatenation of all the comments within the table "comment".
Table: workorder has columns: woid, startdate (plus many others) Table: wo_comment has columns: woid, comment, sequence
Desired View: view_workorder has columns: woid, startdate, allcomments
I tried to create a view as follows but get errors concerning the "CURSOR" statement making me wonder if I can use declarations and CURSORS within a view?
create view [workorder_view] as ( Select w.woid, w.startdate, cast( DECLARE @all_comments nvarchar(4000), @curr_comment nvarchar(256) DECLARE wo_comment_cur CURSOR FOR SELECT woc.Comments FROM WO_Comment as woc WHERE woc.woid = w.woid OPEN wo_comment_cur FETCH NEXT FROM wo_comment_cur INTO @curr_comment WHILE (@@FETCH_STATUS = 0) BEGIN Set @all_comments = @all_comments + @curr_comment FETCH NEXT FROM wo_comment_cur INTO @curr_comment END CLOSE wo_comment_cur; DEALLOCATE wo_comment_cur; as nvarchar(80000)) as COMMENTS
I want to create a login with some restriction like the following...
1.I will create a login and ll mapped to a particular DB with the Database Role 'db_datarerader' only, 2.We wants to display the all objects under a DB but we don't want to provide the View Definition to that particular Login. 3.If we Deny the View definition option he can't able to see the Objects which are there under the DB. 4.So My Clear Question is we want to display the Object like tables ,Sps...etc and we don't want to allow him to view the definition of those objects....
I'd like to find out whether or not people grant VIEW DEFINITION to their developers in UAT and PROD environments. My view is that a developer shouldn't be able to touch a PROD environment at all (we also include UAT as PROD), and any issue in a production environment should be investigated by a DBA and escalated to the dev if necessary.
When I am trying to create an indexed view using group and COUNT(*), it gave me the following error:
€œMsg 10136, Level 16, State 1, Line 2 Cannot create index on view "AdventureWorks.Sales.vOrders" because it uses the aggregate COUNT. Use COUNT_BIG instead.€?
When I refered the SQL Books Online, I found the following statement: €œIf GROUP BY is present, the VIEW definition must contain COUNT_BIG(*) and must not contain HAVING€?.
Though my question is basic, I am curious to know the difference between COUNT() and COUNT_BIG(). The only difference I knew is COUNT_BIG() returns bigint. If this is the only difference, why can€™t we use COUNT() in indexed view definition and why COUNT_BIG() is allowed?
SELECT [DEFINITION] FROM SYS.SQL_MODULES WHERE [OBJECT_ID] = OBJECT_ID(@OBJECTNAME)
I know I can use SP_HELPTEXT to get linebreaks, The reason I want to use this is I can exclude comments section from SQL_Modules, but cannot exclude the comments section from SP_HELPTEXT.
i am trying to create a view but i keep getting the error 'View definition includes no output columns or no items in the FROM clause.'
below is the select statement that's the basis of my view. the explanation i got from the F1 help of enterprise manager was ... View definition includes no output columns or no items in the FROM clause. A view definition must have at least one table or table-structured object in the FROM clause, and must have at least one column in the select list. The view definition is missing one or both. Modify the view definition accordingly.
query:
select Case_CaseId, Logged, CAST(DATEDIFF(minute, Logged, Waiting)/60.0 AS NUMERIC(9, 2)) AS Waiting, CAST(DATEDIFF(minute, Logged, Investigating) /60.0 AS NUMERIC(9, 2)) AS Investigating, CAST(DATEDIFF(minute, Logged, Rejected) /60.0 AS NUMERIC(9, 2)) AS Rejected, CAST(DATEDIFF(minute, Logged, Resolved) /60.0 AS NUMERIC(9, 2)) AS Resolved, CAST(DATEDIFF(minute, Logged, Solved) /60.0 AS NUMERIC(9, 2)) AS Solved, CAST(DATEDIFF(minute, Logged, Closed) /60.0 AS NUMERIC(9, 2)) AS Closed from (
SELECT Case_CaseId, MIN(CASE WHEN case_stage = 'Logged' THEN Case_CreatedDate END) AS Logged, MIN(CASE WHEN case_stage = 'Waiting' THEN Case_CreatedDate END) AS Waiting, MIN(CASE WHEN case_stage = 'Investigating' THEN Case_CreatedDate END) AS Investigating,
AS Rejected, MIN(CASE WHEN case_stage = 'Resolved' THEN Case_CreatedDate END) AS Resolved, MIN(CASE WHEN case_stage = 'Solved' THEN Case_CreatedDate END) AS Solved, MIN(CASE WHEN case_stage = 'Closed' THEN Case_CreatedDate END) AS Closed FROM CaseProgress GROUP BY Case_CaseId ) as temp order by Case_CaseId
Im very very new to sql server world..wanted to know what kind of indexes to be created on the below mentioned table columns for making this view run fastly.As of now there are no indexes created on these view definition columns
CREATE View hrinu.Parity as select T1.Matcle as CorpID, T2.Nmpres as Name, T4.DATDEB as LeaveFrom, T4.TEMDEB as PM, T4.DATFIN as LeaveTo, T4.TEMFIN as AM, T10.LIBLON as LeaveType, T8.LIBLON as Location, T12.LIBLON as ParentOrg
from HRINU.zy00 T1, HRINU.zy3y T2, HRINU.zy39 T3, HRINU.zyag T4, HRINU.zy38 T5, HRINU.zy1s T6, HRINU.zd00 T7, HRINU.zd01 T8, HRINU.zd00 T9, HRINU.zd01 T10, HRINU.zd00 T11, HRINU.zd01 T12 where T4.Nudoss = T3.nudoss and T4.Nudoss = T1.Nudoss and T1.Nudoss = T2.nudoss and T3.nudoss = T5.nudoss and T6.nudoss = T1.nudoss AND T7.NUDOSS = T8.NUDOSS AND T9.NUDOSS = T10.NUDOSS AND T11.NUDOSS = T12.NUDOSS AND T3.IDWKLO = T7.CDCODE AND T4.MOTIFA = T9.CDCODE AND T5.IDESTA = T11.CDCODE and T6.stempl = 'A' and t7.cdstco = 'z04' AND T8.CDLANG = 'U' and t9.cdstco = 'DSJ' AND T10.CDLANG= 'U' and t11.cdstco= 'DRE' AND T12.CDLANG= 'U' and T4.DATDEB <= T3.DTEN00 and T4.DATFIN >= T3.DTEF00 and T3.DTEN00 <= T5.DTEN00 and T3.DTEN00 >= T5.DTEF00 and T6.dtef1s <= getdate() and T6.datxxx > getdate()
Also Please suggest me some links where i can get info about the indexes that has to be created on these types of queries where joins are involved on these many tables. Also throw some light on how to analyse the execution plan for further enhancements.
Have many views based on legacy tables that have different table and column names. Want to create a table that shows view table / column and underlying table column, e.g.
I am trying to do a schema compare and data compare via VS2012 and I am getting below error: The reverse engineering operation cannot continue because you do not have View Definition permission on the 'Target' database.
Whats interesting is I created a viewdefinition role and added the group(to which the user belongs) to the role. However I dont get the error if I make the group the dbowner. Is this a bug?
The developers in our shop have a need to explicitly grant view definition permissions to themselves on stored procedures they create in their development databases. They have dbo level permissions in these databases and although they can explicitly grant view definition permissions to other developers in the same database, they are unable to do so for themselves. When they attempt this, it appears that they are successful but when they check the stored procedure afterwards the permission is not there for themselves.
While this does not cause an issue in development, the intention is for these view definition permissions to be carried forward to the test and production databases where they only have datareader permissions.
When these stored procedures are scripted out by the dba to move to Test and Production the view definition permissions are not scripted out for the developer in question.
Is there a way that a developer with dbo rights in a database can explicitly grant themselves view definition permissions on a stored procedure they create as dbo?
Have a certificate and symmetric key that i have used the following to GRANT to logins. How can I find out which SQL logins have the GRANT CONTROL and GRANT VIEW DEFINTION?
GRANT VIEW DEFINITION ON SYMMETRIC KEY:: Symetric1 TO Brenda GRANT CONTROL ON CERTIFICATE:: Certificate1 to Brenda
I am looking to create a constraint on a table that allows multiplenulls but all non-nulls must be unique.I found the following scripthttp://www.windowsitpro.com/Files/0.../Listing_01.txtthat works fine, but the following lineCREATE UNIQUE CLUSTERED INDEX idx1 ON v_multinulls(a)appears to use indexed views. I have run this on a version of SQLStandard edition and this line works fine. I was of the understandingthat you could only create indexed views on SQL Enterprise Edition?
I created a query, which makes use of a temp table, and I need the results to be displayed in a View. Unfortunately, Views do not support temp tables, as far as I know, so I put my code in a stored procedure, with the hope I could call it from a View....
I am executing a case statement list below,USE NorthwindSELECTMONTH(OrderDate) AS OrderMonth,SUM(CASE YEAR(OrderDate)WHEN 1996 THEN 1ELSE 0END) AS c1996,SUM(CASE YEAR(OrderDate)WHEN 1997 THEN 1ELSE 0END) AS c1997,SUM(CASE YEAR(OrderDate)WHEN 1998 THEN 1ELSE 0END) AS c1998FROM OrdersGROUP BY MONTH(OrderDate)ORDER BY MONTH(OrderDate)According to BOL I should be able to save this query as a view.However when I try to save the query as a view I get a error messagestating"View definition includes no output columns or includes no items inthe FROM clause"According to what I have read although the case statement is notsupported via the enterprise query pane, the query should still runand be saved. In my case however I cannot seem to save it no matterwhat I try.Can anyone shed any light on the matter?Thanks in advanceBryan
I am using dynamic sql in my report. I cannot see the sql the report is generating in sql profiler. Is there somewhere else I can view it? Thanks, Linda
Have a View where I need to enter a conditional IF_THEN_ELSE statement in a new field (field has an alias). If this were an Access query I would do following:
IIf([dbo.AR1_CustomerMaster.EmailAddress] Is Null, "A", "B")
I am having trouble with a VIEW. I modify the view to add a sort criteria. I can Execute the SQL and get the results I am looking for. I save the VIEW. Then if I open the VIEW using the OPEN VIEW menu option(right clicking the VIEW name) the sort order I set does not work. Please help.
Using Microsoft SQL Server Management Studio Express to access the SQL Server 2005
I am trying to create a view that encapsulates some specific info from many different tables. I have about 30 tables all with exactly the same field names and field types. I want to take 3 of the fields from every table and put them together into one 'VIEW' so I can run more efficient queries. SQL however, doesn't let you 'combine' 2 columns from different tables into one column in the view. (making sense?) I tried running a 'UNION' but you are specifically NOT allowed to run a union in a create view statement. Anyone have any ideas?
Hi all, I am trying to create a view with approx. 3000 columns... and got the following error message:
"CREATE VIEW failed because column 'HSEPRIN' in view 'MyTestView' exceeds the maximum of 1024 columns.
Is it mean the max number of columns for each table is 1024? I thought in SQL server the table can contain as much information as possible. Anyone can help to answer my question?
I'd like to get results from ZTest_Contract being my result set, and would like to combine the subquery (which gets the Max) into the primary view ZTest_Contract.
CREATE VIEW [dbo].[ZTest_Contract] AS Select M.CUSTNMBR, M.ADRSCode, M.Contract_number, M.MaxWSCONTSQ, M.Equipment_id,
Hi everyone, I wonder how one can see or save the real sql statement that was executed by some stored procedure (including the one that used supplied parameters)?
I had given one of our developers create view permissions, but he wants to also modify views that are not owned by him, they are owned by dbo.
I ran a profiler trace and determined that when he tries to modify a view using query designer in SQLem or right clicks in SQLem on the view and goes to properties, it is performing a ALTER VIEW. It does the same for dbo in a trace (an ALTER View). He gets a call failed and a permission error that he doesn't have create view permissions, object is owned by dbo, using both methods.
If it is doing an alter view how can I set permissions for that and why does it give a create view error when its really doing an alter view? Very confusing.
CREATE VIEW dbo.vwFeat AS SELECT dbo.Lk_Feat.Descr, dbo.Lk_Feat.Price, dbo.Lk_Feat.Code, dbo.SubFeat.SubNmbr FROM dbo.Lk_Feat INNER JOIN dbo.SubFeat ON dbo.Lk_Feat.Idf = dbo.SubFeat.Idt
When ever I open using SQL Entreprise manager to edit it by adding or removing a field i inserts Expr1,2.. and I don t want that. The result I get is:
SELECT dbo.Lk_Feat.Descr AS Expr1, dbo.Lk_Feat.Price AS Expr2, dbo.Lk_Feat.Code AS Expr3, dbo.SubFeat.SubNmbr AS Expr4 FROM dbo.Lk_Feat INNER JOIN dbo.SubFeat ON dbo.Lk_Feat.Idf = dbo.SubFeat.Idt
I don t want Entreprise manager to generate the Expr fields since I use the real fields in my application. Thanks for help
Hello,I have a View called View1 with the field ID, F1, F2, F3. Now I need to check if (Total F1 < Total F2 + Total F3) per ID, if yes fetch all records (so if condition matches, I need to bring rows, not only totals) how can I write my view query to handle this?Thanks,