Declare Cursor With Dynamic SQL?

Jul 23, 2002

Hello..

Can you declare a cursor with dynamic SQL?

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?

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Declare Dynamic Cursor From String

Apr 27, 2006

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

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Declare Cursor Based On Dynamic Query

Sep 18, 2006

Hi,

I am declaring the cursor based on a query which is generated dynamically. but it is not working



Declare @tempSQL varchar(1000)

--- This query will be generated based on my other conditon and will be stored in a variable

set @tempsql = 'select * from orders'

declare cursor test for @tempsql

open test



This code is not working.



please suggest



Nitin

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DECLARE CURSOR

Oct 4, 2000

Is there any way to create a cursor, based on a dynamically created select_statement? Something like:
DECLARE someCRS CURSOR LOCAL FAST_FORWARD FOR @strSelect
where @strSelect is previously declared as let's say varchar.
I don't want to create a stored procedure for this.


Thanks!

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Help With Declare And Cursor

Aug 13, 2006



I keep getting the message

Msg 156, Level 15, State 1, Line 3

Incorrect syntax near the keyword 'declare'.

Msg 156, Level 15, State 1, Line 4

Incorrect syntax near the keyword 'declare'.



What am I doing wrong?





declare @dbname varchar(8000),

declare @countyname varchar (200) ,

declare @sql varchar(8000)



declare county_name cursor for

select distinct county from Zipcodes

open county_name

fetch next from county_name

into @countyname



declare dbname_name cursor for

select name from sys.databases where name like 'Property%' and name <> 'PropertyCenter'

open dbname_name

fetch next from dbname_name

into @dbname





WHILE @@FETCH_STATUS = 0

BEGIN

set @sql =

'

select p.sa_property_id, z.zipcode as sa_site_zip, z.state as sa_site_state, z.city as sa_site_city, z.county as sa_site_county,@dbname ,(select @@servername) as servername, county'+@countyname+'

from zipcodes z join tbl_reply_assr_final p on z.zipcode = p.sa_site_zip'

exec (@sql)

end

set @sql = ''

fetch next from dbname_name into @dbname

fetch next from county_name into @countyname





CLOSE county_name

DEALLOCATE county_name

CLOSE dbname_name

DEALLOCATE dbname_name

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Declare Or Create Cursor

May 27, 2004

Hello guys,just wanted to ask a question some might percieve it as a stupid one but I don't know so I will ask anyway?

Is Declare Cursor same as Create Cursor and if not what is the major difference?

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Parameter In Declare Cursor Statement

Jan 10, 2000

I have to specifiy the database name which is supplied from the user (@fixdb). I want to do something like the following 'code'

Declare SysCursor cursor for + 'select Name, ID from ' + @fixdb +'.dbo.sysobjects where xtype = "u"'

but I can't seem to come up with the right statement.

Any help greatly appreciated.

Thanks,
Judith

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How To Declare Cursor In Stored Procedure?

Jan 23, 2008

I am trying to decalare the cursor in the below stored procedure. Can any one please help me to correct the cursor declaration?? Basically, i am testing how to declare the cursor in stored procedure.

CREATE PROCEDURE STP_EMPSAL
@empno int,
@Employee_Cursor CURSOR VARYING OUTPUT
FOR SELECT empno FROM AdventureworksDW.dbo.emp
AS
OPEN Employee_Cursor;
FETCH NEXT FROM Employee_Cursor into @empno;
WHILE @@FETCH_STATUS = 0
BEGIN
BEGIN TRAN
UPDATE emp set sal= sal+ 2000 where
empno = @empno and comm is null
mgr='Scott';
FETCH NEXT FROM Employee_Cursor into @empno;
COMMIT;
END;
CLOSE Employee_Cursor;
DEALLOCATE Employee_Cursor;

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Declare Cursor For Execute Stored_procedure

Nov 17, 2006

Hello,

I am using SQL 2005 and i would like to create a cursor from executing a stored procedure (dbo.SP_getDate @Variable).
Something like this:

DECLARE Cursor1 CURSOR FOR EXECUTE dbo.SP_getDate @Variable

i get an error saying "incorrect syntax near the keyword 'EXECUTE'."
cannot get rid of the error. what am i doing wrong?
(i am trying to avoid using #tempTbl to store the results of the execute first and then doing a select on the #tempTbl)

Not sure if i am doing this right all together.
any help would be greatly appreciate.

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T-SQL (SS2K8) :: Cursor - Declare Variable Error

Sep 9, 2014

The below cursor is giving an error

DECLARE @Table_Name NVARCHAR(MAX) ,
@Field_Name NVARCHAR(MAX) ,
@Document_Type NVARCHAR(MAX)

DECLARE @SOPCursor AS CURSOR;
SET
@SOPCursor = CURSOR FOR

[Code] ....

The @Table_Name variable is declared, If I replace the delete statement (DELETE FROM @Table_Name ) with (PRINT @table_name) it works and print the table names.

Why does the delete statement give an error ?

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Dynamic Cursor Versus Forward Only Cursor Gives Poor Performance

Jul 20, 2005

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

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Order By Clause In DECLARE CURSOR Select Statement Won't Compile

May 7, 2008

The stored procedure, below, results in this error when I try to compile...


Msg 156, Level 15, State 1, Procedure InsertImportedReportData, Line 69
Incorrect syntax near the keyword 'ORDER'.

However the select statement itself runs perfectly well as a query, no errors.

The T-SQL manual says you can't use the keywords COMPUTE, COMPUTE BY, FOR BROWSE, and INTO in a cursor select statement, but nothing about plain old ORDER BYs.

What gives with this?

Thanks in advance
R.

The code:




Code Snippet

-- ================================================
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
IF object_id('InsertImportedReportData ') IS NOT NULL
DROP PROCEDURE InsertImportedReportData
GO
-- =============================================
-- Author: -----
-- Create date:
-- Description: inserts imported records, marking as duplicates if possible
-- =============================================
CREATE PROCEDURE InsertImportedReportData
-- Add the parameters for the stored procedure here
@importedReportID int,
@authCode varchar(12)
AS
BEGIN
DECLARE @errmsg VARCHAR(80);

-- SET NOCOUNT ON added to prevent extra result sets from
-- interfering with SELECT statements.
SET NOCOUNT ON;

--IF (@authCode <> 'TX-TEC')
--BEGIN
-- SET @errmsg = 'Unsupported reporting format:' + @authCode
-- RAISERROR(@errmsg, 11, 1);
--END

DECLARE srcRecsCursor CURSOR LOCAL
FOR (SELECT
ImportedRecordID
,ImportedReportID
,AuthorityCode
,[ID]
,[Field1] AS RecordType
,[Field2] AS FormType
,[Field3] AS ItemID
,[Field4] AS EntityCode
,[Field5] AS LastName
,[Field6] AS FirstMiddleNames
,[Field7] AS Title
,[Field8] AS Suffix
,[Field9] AS AddressLine1
,[Field10] AS AddressLine2
,[Field11] AS City
,[Field12] AS [State]
,[Field13] AS ZipFull
,[Field14] AS OutOfStatePAC
,[Field15] AS FecID
,[Field16] AS Date
,[Field17] AS Amount
,[Field18] AS [Description]
,[Field19] AS Employer
,[Field20] AS Occupation
,[Field21] AS AttorneyJob
,[Field22] AS SpouseEmployer
,[Field23] As ChildParentEmployer1
,[Field24] AS ChildParentEmployer2
,[Field25] AS InKindTravel
,[Field26] AS TravellerLastName
,[Field27] AS TravellerFirstMiddleNames
,[Field28] AS TravellerTitle
,[Field29] AS TravellerSuffix
,[Field30] AS TravelMode
,[Field31] As DptCity
,[Field32] AS DptDate
,[Field33] AS ArvCity
,[Field34] AS ArvDate
,[Field35] AS TravelPurpose
,[Field36] AS TravelRecordBackReference
FROM ImportedNativeRecords
WHERE ImportedReportID IS NOT NULL
AND ReportType IN ('RCPT','PLDG')
ORDER BY ImportedRecordID -- this should work but gives syntax error!
);

END

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Declare Variables In A SP Dynamic?

Jan 8, 2008

Hello there,

i have been asked about a thing that, i think, is not possible. But maybe i am wrong.

question:
Is it possible to have a Stored Procedure in that the declaration of the variables is dynamic?
This means, can i get the variable name and the type of it from a database to create
a dynamic stored procedure that changes itself by firing a trigger.

Thanks for all oppinions and answers.
everWantedLINUX

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SQL 2000 Partitioned View Works Fine, But CURSOR With FOR UPDATE Fails To Declare

Oct 17, 2006

This one has me stumped.

I created an updateable partioned view of a very large table. Now I get an error when I attempt to declare a CURSOR that SELECTs from the view, and a FOR UPDATE argument is in the declaration.

There error generated is:

Server: Msg 16957, Level 16, State 4, Line 3

FOR UPDATE cannot be specified on a READ ONLY cursor



Here is the cursor declaration:



declare some_cursor CURSOR

for

select *

from part_view

FOR UPDATE



Any ideas, guys? Thanks in advance for knocking your head against this one.

PS: Since I tested the updateability of the view there are no issues with primary keys, uniqueness, or indexes missing. Also, unfortunately, the dreaded cursor is requried, so set based alternatives are not an option - it's from within Peoplesoft.

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Dynamic Cursor/ Dynamic SQL Statement

Oct 24, 2004

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 ':'.

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Dynamic SQL In Cursor

Jun 10, 2004

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?

TIA

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Dynamic Cursor

Mar 17, 2004

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

Thanks in advance

SK

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How Get The Dynamic Sql In To Cursor

Sep 23, 2005

Dear folks,

In My Query i am using where in condition .It return multiple record .I want store it in to cursor and perform the operation.

Declare @sql varchar(5000);
set @sql='select * from Role where Role_id in('+ @role_ids +')';
Exec @sql;

I want take this record set in to cursor .How to do it.
please help me.

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Dynamic Cursor

May 26, 2007

Hi All€¦

I need to bind a DataGrid to server dynamic cursor.

Please help!

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Dynamic Select For CURSOR

May 14, 2008

Hi all

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

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Using A Dynamic Top Statement With A Cursor

Jul 20, 2005

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

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Dynamic Cursor Generation..

Jul 20, 2005

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

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Dynamic Cursor - Sorting In Declaration

Oct 6, 2006

Hello everybody!I have a small table "ABC" like this:id_position | value---------------------------1 | 112 | 223 | 33I try to use a dynamic cursor as below.When the statement "order by id_position" in declare part of the cursor_abcis omitted - cursor work as it should.But when the statement "order by id_position" is used, cursor behave asstatic one.What's the matter, does anybody know?Code:declare @id_position as int, @value as intDECLARE cursor_abc CURSORFORselect id_position, value from abcorder by id_positionset nocount onopen cursor_abcFETCH NEXT FROM cursor_abcINTO @id_position, @valueWHILE @@FETCH_STATUS = 0BEGINprint @id_positionprint @valueprint '----------------------------'update abc set value=666 --next reading should give value=666FETCH NEXT FROM cursor_abcINTO @id_position, @valueENDCLOSE cursor_abcDEALLOCATE cursor_abcGORegardsLucas

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Transact SQL :: SET ROWCOUNT Applies To Dynamic Cursor

Jul 23, 2015

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() 
RETURNS @MyTable TABLE (MYFIELD INTEGER)
AS
BEGIN
  DECLARE @xxx INTEGER
  DECLARE My_Cursor CURSOR DYNAMIC FOR
 
[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.

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Make A Dynamic Cursor In A Stored Procedure

Jul 9, 2006

I need im my aplication to meke a "Cursor" in a execution of a stored procedure.

For sample:

In a table with a report definition I have the "Fileds, From, Group, Order " clausulas and I need make a cursor with a contents of this fileds.

How can I do ???

My code:

Declare @idRelat int, @cmd_FROM nvarchar(1024), @cmd_Det nvarchar(50)
SELECT @idRelat = idRelat, @cmd_Det = cmd_DET
FROM Relatórios WHERE Nome = @p_Relat

Declare @Tot_Col smallint, @Tot_Lin smallint, @Campos smallint,
@Aux_Select nvarchar(1024), @Aux_Group nvarchar(1024), @Aux_Order nvarchar(1024)

Select @Tot_Col = 0
Select @Tot_Lin = 0
Select @Campos = 0
Select @Aux_Select = "SELECT " + @cmd_DET + "AS Soma"
Select @Aux_Group = "GROUP BY "
Select @Aux_Order = "ORDER BY "
Declare @a_Local char(1), @a_Linha smallint, @a_Campo nvarchar(50)
Declare cur_Aux insensitive cursor for
SELECT Local, Linha, Campo
From Relatórios_Margens
WHERE (idRelat = @idRelat)
ORDER BY Local, Linha
Open cur_Aux
Fetch cur_Aux into @a_Local, @a_Linha, @a_Campo
While @@FETCH_status = 0 begin
If @a_Local = "C"
Select @Tot_Col = @Tot_Col + 1
Else
Select @Tot_Lin = @Tot_Lin + 1
Select @Campos = @Campos + 1
If @Aux_Group <> "GROUP BY " begin
Select @Aux_Group = @Aux_Group + ", "
If @Aux_Order <> "ORDER BY " begin
Select @Aux_Order = @Aux_Order + ", "
Select @Aux_Select = sSelect + ", " + @a_Campo + " AS Campo" + @Campos
Select @Aux_Group = @Aux_Group + @a_Campo
Select @Aux_Order = @Aux_Order + @a_Campo
Fetch cur_Aux into @a_Local, @a_Linha, @a_Campo
End
Select @Aux_Select = @Aux_Select
-- <<<< MONTA COMANDO SQL
Select @Aux_Select = @Aux_Select + " " + @cmd_FROM + " " + @p_Filtro + " " + @Aux_Group + " " + @Aux_Order
Declare @Cursor_Aux cursor
Set @Cursor_Aux = cursor for @Aux_Select
Open @Cursor_Aux

Not working !!!!

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Executing SP Having A Dynamic Cursor Fails In Calling SP

Apr 21, 2008

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 !

Thanks: Peter

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Transact SQL :: Cursor To Create Multiple Dynamic Procedures

Jun 29, 2015

The requirement is create a sql script(1 proc or cursor) which will create multiple procedures dynamically.

Table A
Col1 
Col2

A
Alpha

For Example: If table A has 3 rows(distinct) so 3 procedures will be created dynamically.

Result: 
1 PROC_A_ALPHA
2 PROC_B_BETA
3 PROC_C_charlie

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Dynamic Query, Local Cursor Variable And Global Cursors

Oct 3, 2006

Hi all.



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,

Carlos

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Apr 16, 2015

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?

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Transact SQL :: STATIC Defines A Cursor That Makes Temporary Copy Of Data To Be Used By Cursor

Aug 12, 2015

In MSDN file I read about static cursor

STATIC
Defines a cursor that makes a temporary copy of the data to be used by the cursor. All requests to the cursor are answered from this temporary table in
tempdb; therefore, modifications made to base tables are not reflected in the data returned by fetches made to this cursor, and this cursor does not allow modifications

It say's that modifications is not allowed in the static cursor. I have a  questions regarding that

Static Cursor
declare ll cursor global static
            for select  name, salary from ag
  open ll
             fetch from ll
 
              while @@FETCH_STATUS=0
               fetch from ll
                update ag set salary=200 where 1=1
 
   close ll
deallocate ll

In "AG" table, "SALARY" was 100 for all the entries. When I run the Cursor, it showed the salary value as "100" correctly.After the cursor was closed, I run the query select * from AG.But the result had updated to salary 200 as given in the cursor. file says  modifications is not allowed in the static cursor.But I am able to update the data using static cursor.

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Could Not Complete Cursor Operation Because The Set Options Have Changed Since The Cursor Was Declared.

Sep 20, 2007

I'm trying to implement a sp_MSforeachsp howvever when I call sp_MSforeach_worker
I get the following error can you please explain this problem to me so I can over come the issue.


Msg 16958, Level 16, State 3, Procedure sp_MSforeach_worker, Line 31

Could not complete cursor operation because the set options have changed since the cursor was declared.

Msg 16958, Level 16, State 3, Procedure sp_MSforeach_worker, Line 32

Could not complete cursor operation because the set options have changed since the cursor was declared.

Msg 16917, Level 16, State 1, Procedure sp_MSforeach_worker, Line 153

Cursor is not open.

here is the stored procedure:


Alter PROCEDURE [dbo].[sp_MSforeachsp]

@command1 nvarchar(2000)

, @replacechar nchar(1) = N'?'

, @command2 nvarchar(2000) = null

, @command3 nvarchar(2000) = null

, @whereand nvarchar(2000) = null

, @precommand nvarchar(2000) = null

, @postcommand nvarchar(2000) = null

AS

/* This procedure belongs in the "master" database so it is acessible to all databases */

/* This proc returns one or more rows for each stored procedure */

/* @precommand and @postcommand may be used to force a single result set via a temp table. */

declare @retval int

if (@precommand is not null) EXECUTE(@precommand)

/* Create the select */

EXECUTE(N'declare hCForEachTable cursor global for

SELECT QUOTENAME(SPECIFIC_SCHEMA)+''.''+QUOTENAME(ROUTINE_NAME)

FROM INFORMATION_SCHEMA.ROUTINES

WHERE ROUTINE_TYPE = ''PROCEDURE''

AND OBJECTPROPERTY(OBJECT_ID(QUOTENAME(SPECIFIC_SCHEMA)+''.''+QUOTENAME(ROUTINE_NAME)), ''IsMSShipped'') = 0 '

+ @whereand)

select @retval = @@error

if (@retval = 0)

EXECUTE @retval = [dbo].sp_MSforeach_worker @command1, @replacechar, @command2, @command3, 0

if (@retval = 0 and @postcommand is not null)

EXECUTE(@postcommand)

RETURN @retval



GO


example useage:


EXEC sp_MSforeachsp @command1="PRINT '?' GRANT EXECUTE ON ? TO [superuser]"

GO

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Join Cursor With Table Outside Of Cursor

Sep 25, 2007

part 1

Declare @SQLCMD varchar(5000)
DECLARE @DBNAME VARCHAR (5000)

DECLARE DBCur CURSOR FOR
SELECT U_OB_DB FROM [@OB_TB04_COMPDATA]

OPEN DBCur
FETCH NEXT FROM DBCur INTO @DBNAME


WHILE @@FETCH_STATUS = 0
BEGIN

SELECT @SQLCMD = 'SELECT T0.CARDCODE, T0.U_OB_TID AS TRANSID, T0.DOCNUM AS INV_NO, ' +
+ 'T0.DOCDATE AS INV_DATE, T0.DOCTOTAL AS INV_AMT, T0.U_OB_DONO AS DONO ' +
+ 'FROM ' + @DBNAME + '.dbo.OINV T0 WHERE T0.U_OB_TID IS NOT NULL'
EXEC(@SQLCMD)
PRINT @SQLCMD
FETCH NEXT FROM DBCur INTO @DBNAME

END

CLOSE DBCur
DEALLOCATE DBCur


Part 2

SELECT
T4.U_OB_PCOMP AS PARENTCOMP, T0.CARDCODE, T0.CARDNAME, ISNULL(T0.U_OB_TID,'') AS TRANSID, T0.DOCNUM AS SONO, T0.DOCDATE AS SODATE,
SUM(T1.QUANTITY) AS SOQTY, T0.DOCTOTAL - T0.TOTALEXPNS AS SO_AMT, T3.DOCNUM AS DONO, T3.DOCDATE AS DO_DATE,
SUM(T2.QUANTITY) AS DOQTY, T3.DOCTOTAL - T3.TOTALEXPNS AS DO_AMT
INTO #MAIN
FROM
ORDR T0
JOIN RDR1 T1 ON T0.DOCENTRY = T1.DOCENTRY
LEFT JOIN DLN1 T2 ON T1.DOCENTRY = T2.BASEENTRY AND T1.LINENUM = T2.BASELINE AND T2.BASETYPE = T0.OBJTYPE
LEFT JOIN ODLN T3 ON T2.DOCENTRY = T3.DOCENTRY
LEFT JOIN OCRD T4 ON T0.CARDCODE = T4.CARDCODE
WHERE ISNULL(T0.U_OB_TID,0) <> 0
GROUP BY T4.U_OB_PCOMP, T0.CARDCODE,T0.CARDNAME, T0.U_OB_TID, T0.DOCNUM, T0.DOCDATE, T3.DOCNUM, T3.DOCDATE, T0.DOCTOTAL, T3.DOCTOTAL, T3.TOTALEXPNS, T0.TOTALEXPNS


my question is,
how to join the part 1 n part 2?
is there posibility?

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DECLARE In SQL CE

Aug 6, 2007

Can I use DECLARE in SQL 2005 Compact, and if not, how do I do INSERTs into tables which have columns with Primary Key constraints?

Matt

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