I try to use a dynamic cursor as below.
When the statement "order by id_position" in declare part of the cursor_abc
is omitted - cursor work as it should.
But when the statement "order by id_position" is used, cursor behave as
static one.
What's the matter, does anybody know?
Code:
declare @id_position as int, @value as int
DECLARE cursor_abc CURSOR
FOR
select id_position, value from abc
order by id_position
set nocount on
open cursor_abc
FETCH NEXT FROM cursor_abc
INTO @id_position, @value
Hello All,I am trying to use a variable(@varStr ) in a cursor declaration. But I am unable to use it. something like:declare @intID as intset @intID = 1DECLARE curDetailRecords CURSOR FOR (select fnameFrom Customers where id = @intID)Can we not use a variable in a cursor declaration.?ThanksImran
While working for a client on a SQL Server 6.5 SP5a, I got the following error when running the code below in first SQL Enterprise Manager 6.5 and then SQL Query Analyzer 7.0:
IF @Departures = 1 DECLARE TableCursor CURSOR FOR SELECT AcType, BackPax = CASE BackPax WHEN NULL THEN 0 ELSE BackPax END, BestPax = CASE BestPax WHEN NULL THEN 0 ELSE BestPax END, DepTime, FlightNumber, ArrStn FROM #TimeCall ORDER BY DepTime, FlightNumber ELSE DECLARE TableCursor CURSOR FOR SELECT AcType, BackPax = CASE BackPax WHEN NULL THEN 0 ELSE BackPax END, BestPax = CASE BestPax WHEN NULL THEN 0 ELSE BestPax END, ArrTime, FlightNumber, DepStn FROM #TimeCall ORDER BY ArrTime, FlightNumber
And the error I get when the query is run for the first time after switching tool:
Server: Msg 202, Level 11, State 2, Procedure CreateFile, Line 178 Internal error -- Unable to open table at query execution time. Server: Msg 202, Level 11, State 1, Procedure CreateFile, Line 188 Internal error -- Unable to open table at query execution time.
If I run the query again in one of the tools, it works. It also works if I use WITH RECOMPILE in the stored proc header.
If I use the code below, it also works, and without RECOMPILE:
DECLARE @SqlStr varchar( 255 )
IF @Departures = 1 SELECT @SqlStr = 'DECLARE TableCursor CURSOR ' + 'FOR SELECT AcType, ' + 'BackPax = CASE BackPax WHEN NULL THEN 0 ELSE BackPax END, ' + 'BestPax = CASE BestPax WHEN NULL THEN 0 ELSE BestPax END, ' + 'DepTime, FlightNumber, ArrStn ' + 'FROM #TimeCall ORDER BY DepTime, FlightNumber' ELSE SELECT @SqlStr = 'DECLARE TableCursor CURSOR ' + 'FOR SELECT AcType, ' + 'BackPax = CASE BackPax WHEN NULL THEN 0 ELSE BackPax END, ' + 'BestPax = CASE BestPax WHEN NULL THEN 0 ELSE BestPax END, ' + 'ArrTime, FlightNumber, DepStn ' + 'FROM #TimeCall ORDER BY ArrTime, FlightNumber' EXECUTE( @SqlStr )
Trying to get around the problem with the following code did not do any good:
DECLARE TableCursor CURSOR FOR SELECT AcType, BackPax = CASE BackPax WHEN NULL THEN 0 ELSE BackPax END, BestPax = CASE BestPax WHEN NULL THEN 0 ELSE BestPax END, CurTime = CASE @Departures WHEN 1 THEN DepTime ELSE ArrTime END, FlightNumber, OtherStation = CASE @Departures WHEN 1 THEN ArrStn ELSE DepStn END FROM #TimeCall ORDER BY CurTime, FlightNumber
Server: Msg 202, Level 11, State 2, Procedure CreateFile, Line 176 Internal error -- Unable to open table at query execution time.
here is the code segment below; ... DECLARE find_dates CURSOR FOR SELECT @SQL = 'select DISTINC(Dates) from ['+@name+'].dbo.['+@t_name+'] order by [Dates] ASC' EXEC (@SQL)
but it gives error, variable assignment is not allowed in a cursor declaration. I need to use dynamic SQL , the only way to access all the dbs and their tables inside. Please help.
I have some stored procedure and there is a cursor inside it. I added some new columns to the table and those columns I included in the cursor declaration and fetch statement. In the cursor declaration I forgot to add comma (,) in between the new columns. So SQL Server it considers as a alias name for that column so syntactically it is correct. But logically in the cursor declaration having less number of columns than the columns in the fetch statement. So it should throw an error. But the procedure is getting compiled without raising any error. But if I execute the procedure that time it is throwing the error.
For example, below I have given the sample procedure. In this procedure, in the cursor declaration I removed the comma (,) between DOB and DOJ. If I compile this procedure it is getting compiled. But when execute that time only it is throwing the error. So I am interested in if any option is available to know the error in the compilation time itself.
ALTER PROCEDURE Test AS BEGIN BEGIN TRY
DECLARE @empId INT, @fname VARCHAR(50), @dob DATE, @doj DATE
Is there a way to write such a query where we can declare the variable dynamically ? Currently I am using the query as shown below :
declare @pYear_Internal as NVarchar(100) set @pYear_Internal = [D FISCALPERIOD].[FP CODE].[FP CODE] WITH MEMBER MEASURES.[REVENUE] AS [Measures].[TOTAL REVENUE] SET LAST5YEARS AS STRTOMEMBER(@pYear_Internal).Lag(4) : STRTOMEMBER(@pYear_Internal)
[code]....
While executing the above query, getting the error - Query (1, 9) Parser: The syntax for '@pYear_Internal' is incorrect. Â It looks like it doesn't recognize DECLARE keyword as it does with SQL queries. Â I just want a query that runs directly against the server.Â
Hello,I have a test database with table A containing 10,000 rows and a tableB containing 100,000 rows. Rows in B are "children" of rows in A -each row in A has 10 related rows in B (ie. B has a foreign key to A).Using ODBC I am executing the following loop 10,000 times, expressedbelow in pseudo-code:"select * from A order by a_pk option (fast 1)""fetch from A result set""select * from B where where fk_to_a = 'xxx' order by b_pk option(fast 1)""fetch from B result set" repeated 10 timesIn the above psueod-code 'xxx' is the primary key of the current Arow. NOTE: it is not a mistake that we are repeatedly doing the Aquery and retrieving only the first row.When the queries use fast-forward-only cursors this takes about 2.5minutes. When the queries use dynamic cursors this takes about 1 hour.Does anyone know why the dynamic cursor is killing performance?Because of the SQL Server ODBC driver it is not possible to havenested/multiple fast-forward-only cursors, hence I need to exploreother alternatives.I can only assume that a different query plan is getting constructedfor the dynamic cursor case versus the fast forward only cursor, but Ihave no way of finding out what that query plan is.All help appreciated.Kevin
Hi, I have a situation where I need to sort the output of a cursor. But since the sort criteria are rather complex, I am NOT able to use the Order By clause directly with the cursor definition statement.
Hence, I need to have a solution where I will use a dummy (calculated) field within the CURSOR and I want the output of this cursor sorted by the dummy field that I calculated within the cursor itself.
Please let me know the different possibilities in this scenario.
I've looked up Books Online on Dynamic Cursor/ Dynamic SQL Statement.
Using the examples given in Books Online returns compilation errors. See below.
Does anyone know how to use Dynamic Cursor/ Dynamic SQL Statement?
James
-- SQL ---------------
EXEC SQL BEGIN DECLARE SECTION; char szCommand[] = "SELECT au_fname FROM authors WHERE au_lname = ?"; char szLastName[] = "White"; char szFirstName[30]; EXEC SQL END DECLARE SECTION;
EXEC SQL DECLARE author_cursor CURSOR FOR select_statement;
EXEC SQL PREPARE select_statement FROM :szCommand;
EXEC SQL OPEN author_cursor USING :szLastName; EXEC SQL FETCH author_cursor INTO :szFirstName;
--Error-------------------- Server: Msg 170, Level 15, State 1, Line 23 Line 23: Incorrect syntax near ';'. Server: Msg 1038, Level 15, State 1, Line 24 Cannot use empty object or column names. Use a single space if necessary. Server: Msg 1038, Level 15, State 1, Line 25 Cannot use empty object or column names. Use a single space if necessary. Server: Msg 170, Level 15, State 1, Line 27 Line 27: Incorrect syntax near ';'. Server: Msg 170, Level 15, State 1, Line 30 Line 30: Incorrect syntax near 'select_statement'. Server: Msg 170, Level 15, State 1, Line 33 Line 33: Incorrect syntax near 'select_statement'. Server: Msg 102, Level 15, State 1, Line 35 Incorrect syntax near 'author_cursor'. Server: Msg 170, Level 15, State 1, Line 36 Line 36: Incorrect syntax near ':'.
Hello,I need to have a stored procedure, which performs sorting. Something likethis:CREATE PROCEDURE procname@sortby varchar(30)ASBEGINSELECT some, columnsFROM some_tableORDER BY @sortbyEND(of course, i know this won't work, but it gives the idea of what i mean)Is there a possibility to write a procedure which behaves like that? It isimportant for me not to have multiple procedures just for different sortingcriteria...Thanks,Mike
Hello, I have data coming in from two sources, one being SQL and the other being Oracle. The end result needs to be a CSV file with the columns in a specific order. I have a Data Flow task setup that takes both sources and does a Merge Join on them. I can add a Sort Transformation and manually set the sorting of all 156 columns that end up going to a CSV file destination. However, I have a table setup that holds the names of the 156 columns and the order that the CSV file expects them to be in. I would much rather do this step dynamically as the column names and order may change in the future. Anyone who has used the Sort Transformation for a large number of columns knows how tedious it can be and how adding a column in the middle will cause you to change the sort # for each of the columns that come after it.
So I added a Script Component between the Merge Join and the Flat File Destination hoping that I could alter the order of the columns there. However I added the following code and found that the SortKeyPosition is ReadOnly.
Public Overrides Sub Input0_ProcessInputRow(ByVal Row As Input0Buffer)
Dim column As IDTSInputColumn90
For Each column In Me.ComponentMetaData.InputCollection(0).InputColumnCollection
column.SortKeyPosition = 1
Next
End Sub
I was hoping to add some code to get the sort index from my table for each of the columns and set it to the SortKeyPosition. Has anyone out there done this before or seen an example that might point me in the right direction? I've searched for 2 days without coming up with much.
We have a matrix report which displays columns in a default sorting order. This report columns vary dynamically depending on the user input.
e.g. If user wants to see the report for column Alfa, Beta , Gama then a report will be genarted with column Alfa, Beta , Gama sorted in alphabetical order.
Site %Risk Alfa Beta Gama
X 2 1 2 3
Y 10 4 5 6 However the users want the Columns to be sorted in the order which they provide the inputs e.g. if the user entered Gama, Alfa, Beta the report should display the columns in the same order instead of applying the default sorting order.
Site %Risk Gama Alfa Beta
X 2 3 1 2
Y 10 6 4 5
Any thoughts on ways to achieve this in SSRS matrix report would really help.
I need to pass a list of values into a cursor as such...
DECLARE @group_SQL varchar(255)
SET @group_SQL = 'SELECT group_id FROM groups where group_id in (' + @group_id + ')'
DECLARE groupContact_import_cursor CURSOR FOR EXEC(@group_SQL) OPEN groupContact_import_cursor FETCH NEXT FROM groupContact_import_cursor INTO @group_id WHILE (@@FETCH_STATUS = 0) BEGIN insert into groupContacts (group_id, contact_id) values (@group_id, @new_cid) FETCH NEXT FROM groupContact_import_cursor INTO @group_id END CLOSE groupContact_import_cursor DEALLOCATE groupContact_import_cursor
But MS SQL doesn't seem to like the FOR EXEC(@group_SQL). Can someone shed some light?
I am trying to use a dynamic cursor in a stored procedure: The code looks like this :
/************************************************** *** set @sFormula = 'Monthlyformula' set @sStartDate = '02/01/2004' set @sEndDate = '02/01/2004'
exec('DECLARE APPGRIDROWS_METRICS CURSOR FOR select populateid From appgridrows where histdisplaygrid = 3 And '+ @sFormula +' Is Null and exists (SELECT 1 From PAYROLL_DATA_PERIOD as h Where h.id=1 and h.populateid=appgridrows.populateid and h.StartDate between '+ @sStartDate +' and '+ @sEndDate +')' ) /************************************************** ***
And this is what it is interpreting
select populateid From appgridrows where histdisplaygrid = 3 And Monthlyformula Is Null and exists (SELECT 1 From PAYROLL_DATA_PERIOD as h Where h.id=1 and h.populateid=appgridrows.populateid and h.StartDate between 02/01/2004 and 02/01/2004)
My problem is Is there anyway that I can put the quotes before those dates('02/01/2004') so that my cursor has some records returned
I have a situation where the SQL for my cursor MUST be assembled in a buffer, but I cannot get the cursor declaration to accept my buffer as the SQL statement.
these attempts did not work:
DECLARE crsCursor CURSOR FOR @vchrSQL DECLARE crsCursor CURSOR FOR (@vchrSQL)
Does anybody know if you definitely can or definitely cannot use dynamic SQL with cursors?
I am trying to do dynamic Select for Cursor. The dynamic would be like this: IF CONDITION1 IS TRUE: SELECT CustomerTenderID, CustomerSiteID, ContractPeriod, SupplierID FROM dbo.tnd_TenderSiteRateConsumptionView WHERE CustomerTenderID = @CustomerTenderID IF CONDITION2 IS TRUE: SELECT CustomerTenderID, CustomerSiteID, ContractPeriod, SupplierID FROM dbo.tnd_TenderSiteRateConsumptionView WHERE CustomerTenderID = @CustomerTenderID AND CustomerSiteID = @CustomerSiteID
etc etc
Here's the cursor
DECLARE RateList CURSOR FOR SELECT CustomerTenderID, CustomerSiteID, ContractPeriod, SupplierID FROM dbo.tnd_TenderSiteRateConsumptionView WHERE (BASED ON CONDITION) ORDER BY CustomerTenderID, CustomerSiteID, SupplierID, ContractPeriod
OPEN RateList FETCH NEXT FROM RateList INTO@CustomerTenderID, @ReturnedCustomerSiteID, @ReturnedContractPeriod, @ReturnedSupplierID WHILE @@FETCH_STATUS = 0 BEGIN SET @rowNum = @rowNum + 1
-- DO SOME FUNKY STUFF
FETCH NEXT FROM RateList INTO@CustomerTenderID, @ReturnedCustomerSiteID, @ReturnedContractPeriod, @ReturnedSupplierID
Help please,Have a situation when converting from Oracle SP's to SQL SP's. The oldoracle cursor was roughly as followsCURSOR cur_rsStock ISselect*from(select StockRowId, CategoryIdfromSTOCKDISPOSABLEwhereSTOCKDEFID=numDefIdORDER BYSTOCKROWID)whereROWNUM <= numQuantity;The closest I can get in MS SQL is as follows :declare cur_rsStockCURSOR forselect top @numQuantityStockRowId, CategoryIdfromSTOCKDISPOSABLEwhereSTOCKDEFID=numDefIdORDER BYSTOCKROWIDBut, SQL doesn't allow variables next to top. I know I can assign the wholeselect statement to a string and use exec to exec the string to get arecordset but how can I point a cursor to receive its output?i.e.set @strSQl = select top ' + @numQuantity + ' StockRowId, CategoryId.......exec @strSQLbut how do I dodeclare cur_rsStockset cur_rsStock = ( exec @strSQL)Flapper
Hi Everybody,I have a probs with dynamic generation.I am writing the probs======================================create proc testasdeclare @query varchar(500)set @query = 'select * from table'----------------------------------------------declare mycur Cursor for Select * from table |open mycur |----------------------------------------------but instate of above block how can I dynamically generate this query?---------------------------------------declare mycur Cursor for exec (@query) |---------------------------------------Or tell me the way.RegardsArijit Chatterjee
Hi,is it possible to create a cursor from a dynamic string?Like:DECLARE @cursor nvarchar(1000)SET @cursor = N'SELECT product.product_idFROM product WHERE fund_amt > 0'DECLARE ic_uv_cursor CURSOR FOR @cursorinstead of using this--SELECT product.product_id--FROM product WHERE fund_amt > 0 -- AND mpc_product.status= 'aktiv'Havn't found anything in the net...Thanks,Peppi
i read in the SET ROWCOUNT documentation URL.... that 'The ROWCOUNT option does not affect dynamic cursors', it does affect my dynamic cursor created in a table function which looks like this :
CREATE FUNCTION MyTableFunction()Â RETURNS @MyTable TABLE (MYFIELD INTEGER) AS BEGIN Â DECLARE @xxx INTEGER Â DECLARE My_Cursor CURSOR DYNAMIC FOR Â [code]...
I would like the number of rows retruned by MyTableFunction limited to 2, but NOT the inside proc cursor's select !Set Rowcount 0 is forbidden in table function. I cannot use TOP in select * from MyTableFunction instead of setting ROWCOUNT to 2. I'm using SQL Server 2008 or 2012.
Hi, In a stored procedure (SP1) I call another stored procedure (SP2), passing along parameters. In SP2 I dynamically build cursor c1. I can execute SP2 without any problems but when I start SP1 I get the following message:
Msg 16916, Level 16, State 1, Procedure SP2, Line 114 A cursor with the name 'C1' does not exist.
Yes, the cursor is of type GLOBAL. I am sure I miss something here ... Any help is highly appreciated !
I am stuck in a bit of a conundrum for quite a while now, and I hope someone here will help me figure this one out.
So, first things first: let me explain what I need to do. I am designing a web application that will allow users to consult info available in a SQL2000 database. The user will enter the search criterea, and hopefully the web page will show matching results.
The problem is the results shown aren't available per se in the DB, I need to process the data a bit. I decided to do so on the SQL Server side, though the use of cursors. So, when a user defines his search criteria, I run a stored procedure that begins by building a dynamic sql query and creating a cursor for it. I used a global cursor in order to do so. It looked something like this:
SET @sqlQuery = ... (build the dinamic sql query)
SET @cursorQuery = 'DECLARE myCursor CURSOR GLOBAL FAST_FORWARD FOR ' + @sqlQuery
EXEC @cursorQuery
OPEN myCursor
FETCH NEXT FROM myCursor INTO ...
CLOSE myCursor
DEALLOCATE myCursor
This works fine, if there's only one instance of the stored procedure running at a time. Should another user connect to the site and run a search while someone's at it, it'll fail due to the atempt to create a cursor with the same name.
My first thought was to make the cursor name unique, which led me to:
...
SET @cursorName = 'myCursor' + @uniqueUserID
SET @cursorQuery = 'DECLARE '+ @cursorName + 'CURSOR FAST_FORWARD FOR ' + @sqlQuery
EXEC @cursorQuery
...
The problem with this is that I can't do a FETCH NEXT FROM @cursorName since @cursorName is a char variable holding the cursor name, and not a cursor variable. So to enforce this unique name method the only option I have is to keep creating dynamic sql queries and exucting them. And this makes the sp a bitch to develop and maintain, and I'm guessing it doesn't make it very performant.
So I moved on to my second idea: local cursor variables. The problem with this is that if I create a local cursor variable by executing a dynamic query, I can't extract it from the EXEC (or sp_executesql) context, as it offers no output variable.
I guess my concrete questions are:
Is it possible to execute a dynamic sql query and extract a (cursor) variable from it?Is it possible to populate a local cursor variable with a global cursor, by providing the global cursor's name?Can I create a local cursor variable for a dynamic sql query? How?
Anybody sees another way arround this?Thanks in advance,
I need to find all uses of special characters in a database. I used the following code to do this:
USE dbName GO IF OBJECT_ID('tempdb.dbo.#Results') IS NOT NULL DROP TABLE #Results GO
[code]...
This will check all tables in the database, but if you want to check specific tables you can uncomment the line in the where clause and specify tables to be checked. The query will return any text fields that have any characters other than letters, numbers or spaces.
This code works fine for me because all the tables in my database have single column primary keys. However I know how much Jeff Moden hates cursors or RBAR queries, so my question is could this have been done by any method other than using a cursor?
I have a report where I am giving the users a parameter so that they can select which field they would like to sort on.The report is also grouping by that field. I have a gruping section, where i have added code to group on the field I want based on this parameter, however I also would like to changing the sorting order but I checked around and I did not find any info.
So here is my example. I am showing sales order info.The user can sort and group by SalesPerson or Customer. Right now, I have code on my dataset to sort by SalesPerson Code and Order No.So far the grouping workds, however the sorting does not.
SSRS 2012 - VS2010...The report compares two years with a sort order on a value that has been engineered based on text switched to int. Â When sorting A-Z this is the result in the horizontal axis is: 5th, K, 1st, 2nd, 3rd, 4th, 5th..When sorting Z-A the result in the horizontal axis is:5th, 4th, 3rd, 2nd, 1st, PreK..Z-A is correct but A-Z sorting shows 5th as the start and end. Â The magnitude of the PreK location is correct but the label is wrong on the A-Z sort order. Â The sorting is implemented using the Category Group sorting option.
