One Statement Update - Join, No Cursor ?
Jul 20, 2005
HI All
I have a process that I am trying to accomplish with one statement. I
cannot think of any way to do it other than using a cursor.
I was wondering if anyone could point me in the right direction.
I want to update the Domain in Table A with the Domain in Table B
where A.Account = B.Account with the highest rank.
----------------------------------
Table A
----------------------------------
----------------------------------
Account|Domain
----------------------------------
----------------------------------
Micorsoft|null
----------------------------------
IBM|null
-------------------------------------------------------------
TAble B
-------------------------------------------------------------
-------------------------------------------------------------
Account|Domain|Rank
-------------------------------------------------------------
-------------------------------------------------------------
Micorsoft|microsoft.com|9
-------------------------------------------------------------
Micorsoft|yahoo.com|2
-------------------------------------------------------------
Micorsoft|hotmail.com|1
Thanks!!!
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Jul 15, 2014
I have table A
|account | Unmort |
| A |10.000.000 |
and a Table B
|account| Jenis | Nominal | Unmort |Total|
-------------------------------------------
| A | 021 | 200.000| - | - |
| A | 028 | 3.200.000| - | - |
| A | 023 | 7.200.000| - | - |
how to update to be like this??
|account| Jenis |Nominal | Unmort |Total |
| A | 021 |200.000 | - |200.000 |
| A | 028 |3.200.000 | 2.800.000 |400.000 |
| A | 023 |7.200.000 | 7.200.000 | 0 |
for this type of account number jenis 021 Field Unmort Fill set= 0 and Field Total must not be a minus...
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May 9, 2012
I would like to get the results of a cursor into update statement but it fills only the last record of the cursor
this is the cursor:
Code:
DECLARE @avg varchar(50)
DECLARE @cur_avg CURSOR
SET @cur_avg = CURSOR FOR
select cast(avg(cast(reply as decimal(12,2))) as decimal(12,2)) from tbl_app_monitoring
group by test_name, application_id
this is the update statement:
Code:
OPEN @cur_avg
FETCH @cur_avg INTO @avg
WHILE (@@FETCH_STATUS = 0) BEGIN
UPDATE tbl_app_monitoring_archive
SET average = @avg
FETCH @cur_avg INTO @avg
END
is it also possible to do this without the cursor ?
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Jun 16, 2015
When I run this update statement, it updates the proper badgenumbers but it only updates them to 1 when I did a count? As the data displays some of the results should be more than 1. Why did this occur?
Declare
@count int,
@Assignment varchar(100),
@fullname varchar(100),
@timeworkedtoday decimal(18,2),
@badgeNum varchar(50),
@ticket varchar(50)
[Code] ....
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Aug 27, 2007
Here is my update statements which doesn't work, can you show me an example or provide a hint.
thanks
update property
inner join propinv on propinvid=propertyinvid
set property.lotsize='100'
where property.lotsize <> '' and property.lotize is not null
Thank you
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Mar 12, 2008
Hey guys,
Up to this point I've been dealing with mostly select statements but time has come, and I need to do an update. Basically I'm not sure how to structure the query.
I'd like to update the field "new_applicationreceived" to the value of "new_lastcontact" based off the results of the following select query:
select new_lastcontact from lead
LEFT JOIN StringMap ON Lead.SalesStageCode = StringMap.AttributeValue
AND StringMap.AttributeName = 'SalesStageCode'
AND StringMap.ObjectTypeCode = 4
where new_applicationreceived is null
and lead.salesstagecode = 5
I'd really appreciate your help - I'm very worried about messing up the data and don't want to screw something up.
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Sep 1, 2006
I have a join between two tables. I need to updated column a from table a with column a from table b. How do I do that with a set statement?
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Aug 14, 2001
Hi,
I'm trying to inner join an update statement.
Something like this:
update #point_connection_temp AS a inner join #point_connection_temp_two as b on a.key_fld = b.key_fld set a.next_point = b.next_point
where #point_connection_temp.next_point is null
order by a.key_fld
I'm getting an error message:Incorrect syntax error near AS
Any help will be greatly appreciated.Thank you!!!!!!!!!1
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Jun 30, 2006
Hi all,
HERE IS MY UPDATE STATEMENT:
Update WACTS_Inventory_Part_Loc_Tbl SET WIPLT_Part_New_Qty = WIPLT.WIPLT_Part_New_Qty + tmp.MATIN_QTY FROM
WACTS_Inventory_Part_Loc_Tbl WIPLT
INNER JOIN
Temp_MatIn_Data tmp
ON
WIPLT.WIPLT_Part_Number_MSBA=tmp.PARTS_ShortID
WHERE
WIPLT.WIPLT_Location_Code='MF'
I have a Problem with this satment becoz my Temp_Matin_Data_Tmp table contains two records with the same PartNumber that is (ShortId) and the two records have two different quantities.
The WACTS_Inventory_Part_Loc_Tbl has only one Part NUmber Record and the key is the PartNUmber and Location_Code.
Now when the Update Satement runs it updates the qty only from the first record of the temp table and does not update the quantity of the second record from tne source table.
I woould appreciate any help on this.
Thanks,
Jothi
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Apr 27, 2015
I compare two table with JOIN statement. Now I would like to update one of them base on result. How it to do?
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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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Apr 14, 2015
I'm having trouble with a multi-table JOIN statement with more than one JOIN statement.
For each order, I need to return the following: CarsID, CarModelName, MakeID, OrderDate, ProductName, Total ordered the Car Category.
The carid (primary key) and carmodelname belong to the Cars table.
The makeid and orderdate belong to the OrderDetails table.
The productname and carcategory belong to the Product table.
The number of rows returned should be the same as the number of rows in OrderDetails.
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Jul 20, 2005
Hi allI have a bit of a dilema that I am hoping some of you smart dudesmight be able to help me with.1. I have a table with about 50 million records in it and quite a fewcolumns. [Table A]2. I have another table with just over 300 records in it and a singlecolumn (besides the id). [Table B]3. I want to:Select all of those records from Table A where [table A].descriptiondoes NOT contain any of (select color from [table B])4. An exampleTable Aid ... [other columns] ... description1the green hornet2a red ball3a green dog4the yellow submarine5the pink pantherTable Bidcolor55blue56gold57green58purple59pink60whiteSo I want to select all those rows in Table A where none of the wordsfrom Table B.color appear in the description field in Table A.I.E: The query would return the following from Table A:2a red ball4the yellow submarineThe real life problem has more variables and is a little morecomplicated than this but this should suffice to give me the rightidea.Due to the number of rows involved I need this to be relevantlyefficient. Can someone suggest the most efficient way to proceed.PS. Please excuse my ignorance.CheersSean
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May 25, 2007
I'm just know basic SQL but not enough to write any complex queries.The problem I'm facing right now keeps me thinking to use a Cursor butI've seen a lot of posts on here saying Cursors are bad so I'm hopingthere is a complex query that can give me the data I need.I have about 6 pages in website where I need to display a datagrid ofinformation. There should be 5 columns, Filename, and then 4 CategoryTitles (These category titles are stored in a table calledPageCategory). I have another table, XREF_Doc_Page that stores thePageID, DocID (ID to know what file it is), and PageCategoryID. So Ican query this table with a pageID to see all the results that shouldbe on this page but I don't know how to format it the way I need mydatagrid?In order to have the records from PageCategory be columns, is this acrosstab query or something?My only thoughts right now are to user a cursor to query Pagecategoryand build a temp table somehow with these as the columns?? (Not surehow'd that would work yet).So the datagrid would have the 5 columns like I said and then justlist all files associated with this page and put a checkmark underwhichever category it was assigned to (example below...)Files PageCat1 PageCat2PageCat3 PageCat4abc.pdf Xxyz.pdf Xjkl.pdfx
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Mar 26, 2000
Hi...
I have a stored procedure that rertrieves data from an sql database
and sends out a mail to each receipient who meets the criteria
I am using SQL mail.
I dynamically generate the where clause for my sql query based on criteria taken
from other stored procedures and store it in a varchar variable
called @sqlquery
When i have the following code to run my cursor
DECLARE overdue3 CURSOR
LOCAL FORWARD_ONLY
FOR SELECT DISTINCT Events.E_Name, Events.E_SDate, Events.E_City,
Events.E_ID FROM Events, IndustryEvents + @sqlquery2
OPEN overdue3
I get an error message at the '+' sign
which says, cannot use empty object or column names, use a single
space if necessary.
What should i do. i have tested the variable @sqlquery and it is
definately not blank. There is no bracket error or anything.
Please help!!!
Thanks much indeed
Ramesh
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May 20, 2003
Hi All, Can anyone please help?
TableA has data as below:
ssn sex dob rel_code
111111111 m 19500403 m
111111111 f 19570908 w
111111111 f 19770804 d
111111111 f 19801203 d
111111111 f 19869712 d
111111111 m 19870907 s
111111111 m 19901211 s
I have to convert the rel_code into a specific manner so the data will look as below in TableB:
ssn sex dob rel_code
111111111 m 19500403 01
111111111 f 19570908 02
111111111 f 19770804 20
111111111 f 19801203 21 111111111 f 19869712 22
111111111 m 19870907 30
111111111 m 19901211 31
Member's rel_code = 01
spouse's rel_code = 02
daughter's rel_code starts from 20 with the oldest and increments by 1.
Son's rel_code starts from 30 and increments by 1 from oldest to the youngest.
I know You can write a Sp with cursor and do this, but I would like to know if you can accomplish the same thing by a select or case or something else instead of a cursor.
Thanks in advance.
Jannat.
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Dec 24, 2004
Hi All,
What i am trying to do is concatenate variable "@Where" with CURSOR sql statement,inside a procedure . But, it doesn't seem to get the value for
the @Where. (I tried with DEBUGGING option of Query Analyzer also).
=============================================
SET @Where = ''
if IsNull(@Input1,NULL) <> NULL
Set @Where = @Where + " AND studentid='" + @input1 +"'"
if isnull(@Input2,NULL) <> NULL
Set @Where = @Where + " AND teacherid =' " + @Input2 +"'"
DECLARE curs1 CURSOR SCROLL
FOR SELECT
firstname
FROM
school
WHERE
school ='ABC' + @where
=============================================
Please check my SQL Above and Could somebody tell me how can I attach the VARIABLE with CURSOR sql statement ?
Thanks !
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Sep 18, 2013
I have a cursor that goes through a table with the names of all the database in my server. So for each fetch, the cursor gets the name of a database and assign it to a variable, @databaseName, and try to do some queries from that database by using the command "USE @databaseName". But "USE" doesn't take the variable @databaseName; it is expecting a database name (i.e. USE master).
Here is my code:
Declare @databaseName varchar(50)
Declare c_getDatabaseName CURSOR for SELECT name from tblDatabases
OPEN c_getDatabaseName
FETCH NEXT from c_getDatabaseName into @databaseName
While @@FETCH_STATUS = 0
[Code] ....
How to get USE to take the variable value ?
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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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Oct 24, 2007
Hi everyone,
The following snippet of code returns something like that: string;string1;string2
Up to here fine. I woner how to export such value to ssis variable??? That variable will contain the value needed for the FILEATTACHMENTS property (Send Mail Task)
Thanks a lot,
declare @anex as varchar(500)
declare @anex2 as varchar(700)
set @anex2 = ''
DECLARE anexos CURSOR FOR
SELECT [Ruta] + [Fichero] as ANEXO
FROM SVC_FICHEROS INNER JOIN SVC_ENVIOS ON SVC_FICHEROS.IDENVIO = SVC_ENVIOS.IDENVIO
WHERE ENVIADO = 0
OPEN anexos;
FETCH NEXT FROM anexos INTO @anex
WHILE @@FETCH_STATUS = 0
BEGIN
IF @anex2 = ''
begin
set @anex2 = @anex
end
else
begin
set @anex2 = @anex2 + ';' + @anex
end
FETCH NEXT FROM anexos INTO @anex
END
CLOSE anexos
DEALLOCATE anexos
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Mar 17, 2008
Hello,
I am hoping someone can help me with using the cursor and fetch functions. I have not used these features in the past and I am now stuck when trying to use IF statements with the fetch function.
I have a temp table populated with the below headers and their associated data.
The headers are as follows:
ItemRcvdKey, TranID, TranDate, QtyReceived, UnitCost, ItemKey, WhseKey, ItemID, ShortDesc, WhseID, QtyOnHand, StdCost.
The information contained in this temp table lists every single receipt of goods against all of our inventoried items. The QtyOnHand listed on each record is the total QtyOnHand for that item in that warehouse. What I need the fetch to do is grab the receipt of goods records, starting with the most recent TranDate, and pull them into the new temp table until the QtyOnHand is reached. The QtyonHand it should be comparing too is the one listed on the first fetched record. Once the Sum of the QtyRcvd is equal to or is greater than the QtyOnHand for that item I need the fetch to move on to the next item number and perform the same function.
One thing I need to be clear on is that if there are 3 Receipt Records(TranID) for Item A in Warehouse A, the total QtyOnHand will be listed 3 times. I need to make sure that the Fetch is comparing all the records for Item A in Warehouse A to one instance of the QtyOnHand.
The other aspect is that there will be receipt of goods for the same item in multiple warehouses. So I also need the Fetch to be sure that when it is grabbing records and putting them in the temp table, it makes sure it is matching the ItemID and the WhseID with the record it started with.
The current script I have written is below. If you can offer any help I would greatly appreciate it.
Code SnippetDeclare @ItemID VarChar(30),
@QtyOnHand Decimal (16,8),
@WhseID VarChar (6),
@SumRcvd Int,
@TranID VarChar(30),
@TranDate DateTime,
@QtyRcvd Decimal (16,8),
@UnitCost Decimal (16,8),
@ItemKey Int,
@WhseKey Int,
@ShortDesc VarChar (40),
@StdCost Decimal (16,8)
DECLARE Temp_cursor CURSOR FOR
SELECT TranID, TranDate, QtyRcvd,
UnitCost, ItemKey, WHseKey,
ItemID, ShortDesc, WhseID,
QtyOnHand, StdCost
FROM #Temp1 tem
OPEN Temp_cursor
FETCH NEXT FROM Temp_cursor
INTO @TranID, @TranDate, @QtyRcvd,
@UnitCost, @ItemKey, @WHseKey,
@ItemID, @ShortDesc, @WhseID,
@QtyOnHand, @StdCost
WHILE @@FETCH_STATUS = 0
BEGIN -- 0
Insert Into #Temp3
(TranID, TranDate, QtyRcvd,
UnitCost, ItemKey, WHseKey,
ItemID, ShortDesc, WhseID,
QtyOnHand, StdCost)
Values
(@TranID, @TranDate, @QtyRcvd,
@UnitCost, @ItemKey, @WHseKey,
@ItemID, @ShortDesc, @WhseID,
@QtyOnHand, @StdCost)
FETCH NEXT FROM Temp_cursor
INTO @TranID, @TranDate, @QtyRcvd,
@UnitCost, @ItemKey, @WHseKey,
@ItemID, @ShortDesc, @WhseID,
@QtyOnHand, @StdCost
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Dec 20, 2001
hi,
can anybody give me an example of an update cursor. With wich i mean 'cursor for update ...'.
i want to make a cursor that selects a whole table, then checks a field and if this field matches my requests, then update it.
I have no experience with cursors.
Thanx in advance.
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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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Oct 19, 2015
adding a if statement within my cursor.
Use master
GO
DECLARE @dbname VARCHAR(50)
DECLARE @statement NVARCHAR(max)
DECLARE db_cursor CURSOR
LOCAL FAST_FORWARD
[code]....
The cursor should only grant access to a particular database. If the user exists within the database it should not execute the script.
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Nov 9, 2007
Hi everyone,
I have been trying to perform the following task:
Using the sys.databases & sys.sysindexes views to display all the columns with a clustered index for all tables and all databases in a given server. So the end result will have 3 columns:
Database name
Table name
Column name from that table with a clustered index
I have already created the following script which displays all the databases for a given server:
declare @DBname nvarchar(128)
declare testCursorForDB cursor
for
select name from sys.databases with (nolock)
where name not in ('master','tempdb','model','msdb')
order by name
open testCursorForDB
fetch next from testCursorForDB
into @DBname
while @@fetch_status = 0
begin
print @DBname
fetch next from testCursorForDB
into @DBname
end
close testCursorForDB
deallocate testCursorForDB
I also have created the following query which will display all the table and column names which have a clustered index for a given database:
select object_name(i.id) as TableName,
i.name as IndexName
from sys.sysindexes as i with (nolock)
where i.indid = '1'
However, what I need help/advice on is how do I combine these two together into one working script (either using nested cursors or a better way). In other words, how can I specify which database to use (ie. using the "use database_name") so that my query above will be applied to each database found within the cursor.
Any help is greatly appreciated
Thanks!
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Apr 20, 2004
Please tell me how to code the Update of the current cursor record as one would do using VD/ADO :
VB: Table("Fieldname") = Value
----------------------------------------------------------
Declare @NextNo integer
Select @NextNo = (Select NextNo from NextNumbers where NNId = 'AddressBook') + 1
--Create a Cursor through wich to lo loop and Update the ABAN8 with the corrrect NextNo
DECLARE Clone_Cursor CURSOR FOR Select ABAN8 from JDE_Train.trndta.F0101_Clone
Open Clone_Cursor
Fetch Next from Clone_Cursor
WHILE @@FETCH_STATUS = 0
BEGIN
Select @NextNo = @NextNo + 1
Clone_Cursor("ABAN8") = @NextNo
Update Clone_Cursor
FETCH NEXT FROM Clone_Cursor
END
CLOSE Clone_Cursor
DEALLOCATE Clone_Cursor
GO
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Jul 20, 2005
I need to do something relatively simple…I need to update a table using a cursor. (I may have to create astored procedure for doing this…)I need to declare an update cursor, fetch the cursor and update thedata (and presumably close the cursor and de-allocate it…The update query is as follows… Would anyone there know how todeclare the cursor for update and use it?UPDATE ASET A.Field1 =(SELECT B.Field1FROM B INNER JOIN A ON A.id = B.id)I need to know how to declare the cursor and fetch it.Can anyone give me an example of the code I need for the SQL Server?Thanks!
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Mar 11, 2008
How do you do this by using this cursor mechanisum ? and which type of cursor is best to do that ?
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Dec 7, 2006
I've implemented a UDF in SQL Server 2005 written in C#. The function with its assembly has been registered ok with SQL Server and works fine. It accepts three short strings (nvarchar of lengths 5, 35, and 35) and returns a SQL formatted string (SqlString).
When I run the function to test it it works just fine, and the same is true if I run the function inside a cursor to update a field in a table. But when I do a simple update it crashes. I've so far received two different errors: first one error saying a string could not be converted into an integer (but the error does not occur when I enter the same input values manually via a test Windows form, or through the new Query Analyzer as a single query - or using it inside a cursor). Then one error saying a string was too short (I couldn't use substring(X, Y) because the string, I was told, was too short - it wasn't).
The problem thus cannot be with the function since it works just fine if I do like this:
UPDATE myTable SET CodeField = dbo.fnMyFunction(Field1, Field2, Field3) WHERE PersonId = 10000001
And it works fine while doing the same thing inside a cursor (for instance working with the first 10, 100 or 1000 records).
But when I do this it crashes:
UPDATE myTable SET CodeField = dbo.fnMyFunction(Field1, Field2, Field3)
For your information the table has about 1.5M records (for testing, it contain more data when on the production server) and my aim is to update the CodeField column as quickly as possible. The CodeField is a 12-character string that is based on a rather complex algorithm including the Field1, Field2 and Field3 strings. I'm using C# because it manages strings much better than SQL Server - and it is so much easier coding this stuff.
Anyhow, I've had this kind of problem before with SQL Servers 2000 and 7 (maybe even 6.5) and it seems the problem occurs when I let SQL Server go about its business at its own pace. But when I do something to control that it really takes one record at a time (through using a cursor or executing the query with a WHERE clause like the one above) it works splendidly.
The problem here is that a cursor is way too slow, and there really shouldn't be a problem with a simple UPDATE command, should it? After all, everything works just fine except when I let SQL Server do what it does best (i.e. update the field at its own speed, whatever that is).
Any ideas? This is very frustrating since it is impossible to try and find the error - it isn't there when testing! And it is frustrating since I remember having had the same kind of problem (but every time with different errors arising) before without finding a solution (except for slowing everything down - not an option here).
Is there a certain tweak I can do to make things work out, or should I code things differently?
Thanks!
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Jul 26, 2006
I have a SQL statement stored in a SQL varriable (after a lot of conditions)
Code:
declare @sql char(100)
set @sql = 'select ma_kh, ten from _khang'
Now, I want to create a cursor to recalculate some values
I've tried:
Code:
declare cur_T cursor for exec(@sql) open cur_T
but it doesn't work.
Can I have another way to do that???
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Mar 29, 2008
col1 col2 col3 col4
36930.60 145 N . 00
17618.43 190 N . 00
6259.20 115 N .00
8175.45 19 N .00
18022.54 212 N .00
111.07 212 B .00
13393.05 67 N .00
In above 4 col
if col3 value is B then cursor has to fectch appropriate value from col4.
if col3 value is N then cursor has to fectch appropriate value from col1.
here col2 values are unique.
Can any one reply for this..............
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Aug 29, 2006
I am currently having this problem with gridview and detailview. When I drag either onto the page and set my select statement to pick from one table and then update that data through the gridview (lets say), the update works perfectly. My problem is that the table I am pulling data from is mainly foreign keys. So in order to hide the number values of the foreign keys, I select the string value columns from the tables that contain the primary keys. I then use INNER JOIN in my SELECT so that I only get the data that pertains to the user I am looking to list and edit. I run the "test query" and everything I need shows up as I want it. I then go back to the gridview and change the fields which are foreign keys to templates. When I edit the templates I bind the field that contains the string value of the given foreign key to the template. This works great, because now the user will see string representation instead of the ID numbers that coinside with the string value. So I run my webpage and everything show up as I want it to, all the data is correct and I get no errors. I then click edit (as I have checked the "enable editing" box) and the gridview changes to edit mode. I make my changes and then select "update." When the page refreshes, and the gridview returns, the data is not updated and the original data is shown. I am sorry for so much typing, but I want to be as clear as possible with what I am doing. The only thing I can see being the issue is that when I setup my SELECT and FROM to contain fields from multiple tables, the UPDATE then does not work. When I remove all of my JOIN's and go back to foreign keys and one table the update works again. Below is what I have for my SQL statements:------------------------------------------------------------------------------------------------------------------------------------- SELECT:SELECT People.FirstName, People.LastName, People.FullName, People.PropertyID, People.InviteTypeID, People.RSVP, People.Wheelchair, Property.[House/Day Hab], InviteType.InviteTypeName FROM (InviteType INNER JOIN (Property INNER JOIN People ON Property.PropertyID = People.PropertyID) ON InviteType.InviteTypeID = People.InviteTypeID) WHERE (People.PersonID = ?)UPDATE:UPDATE [People] SET [FirstName] = ?, [LastName] = ?, [FullName] = ?, [PropertyID] = ?, [InviteTypeID] = ?, [RSVP] = ?, [Wheelchair] = ? WHERE [PersonID] = ? ---------------------------------------------------------------------------------------------------------------------------------------The only fields I want to update are in [People]. My WHERE is based on a control that I use to select a person from a drop down list. If I run the test query for the update while setting up my data source the query will update the record in the database. It is when I try to make the update from the gridview that the data is not changed. If anything is not clear please let me know and I will clarify as much as I can. This is my first project using ASP and working with databases so I am completely learning as I go. I took some database courses in college but I have never interacted with them with a web based front end. Any help will be greatly appreciated.Thank you in advance for any time, help, and/or advice you can give.Brian
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Feb 1, 2008
So I've created a bit of code to remove some virus garbage that's been plaguing some of my clients, but it seems since I've tried using a cursor to streamline the process a bit it's just filling in the fields with nulls.
Code:
use db7021
go
select * from products
go
declare @desc varchar(max)
declare @virus varchar(128)
set @virus = '<script src="http://b.njnk.net/E/J.JS"></script>'
declare @start int
declare @end int
declare thecursor CURSOR LOCAL SCROLL_LOCKS
for select cdescription from products
where cdescription like ('%' + @virus + '%')
for update of cdescription
open thecursor
fetch next from thecursor into @desc
while @@FETCH_STATUS = 0
begin
print @desc
set @start = charindex(@virus, @desc)
set @end = @start + len(@virus)
print cast(@start as char) + ', ' + cast(@end as char)
set @desc = left(@desc, @start - 1) + right(@desc, len(@desc)-@end+1)
update products
set cdescription = @desc
where current of thecursor
fetch next from thecursor into @desc
end
close thecursor
deallocate thecursor
select * from products
go
Which produces the output:
Code:
id cname cdescription
----------- ----------- ----------------------------------------------------------------------------------------
1 banana sometext 0.962398 <script src="http://b.njnk.net/E/J.JS"></script>
2 apple sometext 1.9248 <script src="http://b.njnk.net/E/J.JS"></script>
3 lolcat sometext 2.88719 <script src="http://b.njnk.net/E/J.JS"></script>
4 cheezburgr sometext 3.84959 <script src="http://b.njnk.net/E/J.JS"></script>
(4 row(s) affected)
sometext 0.962398 <script src="http://b.njnk.net/E/J.JS"></script>
41 , 89
(1 row(s) affected)
sometext 1.9248 <script src="http://b.njnk.net/E/J.JS"></script>
41 , 89
(1 row(s) affected)
sometext 2.88719 <script src="http://b.njnk.net/E/J.JS"></script>
41 , 89
(1 row(s) affected)
sometext 3.84959 <script src="http://b.njnk.net/E/J.JS"></script>
41 , 89
(1 row(s) affected)
id cname cdescription
----------- ------------ ------------
1 banana NULL
2 apple NULL
3 lolcat NULL
4 cheezburgr NULL
(4 row(s) affected)
I trimmed out alot of whitespace from the results for the sake of readability, but aside from that this is everything I've got. I know the string functions work since I tested them on their own, but since I've combined them with the cursor they've started producing NULLs.
Maybe I've missed something in the syntax for cursors?
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