Transact SQL :: How To Write A Cursor For Row Count
May 20, 2015
I have a table which table has :Identity Column (Identity), Schema name and Table_Name.
So I would like to write a cursor For each Table Count(*) from Table--@Cnt Int , Schemaname and Tablename need to store another table.
Implement a USP, using a cursor that scan the table, generate select count statement from configuration table and fire the select count statement and record the result of the query in the log table :
how can I write a cursor and Import Those results into to Another table.
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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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Oct 10, 2004
Please help me to get the required result:
For each IDS in table1
- change the ids to numbers (eg. for '1,2,3' get the numbers (IntValue) 1, 2 & 3)
- in table2, find the maxVal for each number
- disply the table1..ids, number, table2..maxVal & table1..idsDesc,
order by table1..ids, table2..maxVal & IntValue
I have 2 tables, over milin records each. The Simplified versions of the tables looks like that:
create table table1 (ids varchar(100), idsDesc varchar(100))
go
insert table1 select '1,2,3', 'Description 1'
union all select '2,3,4', 'Description 2'
union all select '1,7', 'Description 3'
union all select '16,3,8', 'Description 4'
union all select '2,5,6,1', 'Description 5'
go
create table table2 (ids int, maxVal int)
go
insert table2 select 1, 10
union all select 2, 6
union all select 3, 12
union all select 4, 11
union all select 5, 66
union all select 6, 4
union all select 7, 3
-- union all select 8, 5 -- no value for 8
union all select 9, 6
union all select 16, 12
go
I have also function that returns table variable of numbers delivered from given string:
create function dbo.fn_StrToIntValues ( @str varchar(1000) )
returns @numsTbl table (IntValue int not null)
The command
select * from dbo.fn_StrToIntValues('1,2,33')
Returns --> intValue
1
2
33
Can I use SQL query and not cursor to get the following result ?
Required Output :
ids IntValue maxVal idsDesc
--------- -------- ------- ---------------
'2,5,6,1' 5 66 'Description 5'
'16,3,8' 16 12 'Description 4'
'2,3,4,9' 3 12 'Description 2'
'1,2,3' 3 12 'Description 1'
'1,7' 1 10 'Description 3'
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Nov 9, 2005
Guys
Here's the scenario
create table data1 (dealid varchar(6) , datex smalldatetime , Tn INT)
insert data1 (dealid , datex , Tn )
values ('12345' , '31-12-2005' , 9999)
insert data1 (dealid , datex , Tn )
values ('12345' , '30-11-2005' , 9999)
insert data1 (dealid , datex , Tn )
values ('12345' , '31-10-2005' , 9999)
insert data1 (dealid , datex , Tn )
values ('98765' , '31-12-2005' , 2)
insert data1 (dealid , datex , Tn )
values ('98765' , '30-11-2005' , 1)
insert data1 (dealid , datex , Tn )
values ('98765' , '30-11-2005' , 0)
select * from data1
I need to update the Tn column from the default 9999 for the 3 rows in this table where the dealid is 12345 based on the value in the datex column so the row with the 'highest ie most recent date' gets a 0. I then need to assign the value 1 to the next highest and so on until all rows (in this case 3) get incrementing integer values. It's easy with a cursor but can't get my head round doing it in a set-based way
Any ideas
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Aug 25, 2014
I wrote the foollowing cursor code but it takes too long.how i can write it without cursor?
ALTER PROCEDURE [dbo].[usp_AMPPU_Teamleader]
AS
BEGIN
SET NOCOUNT ON;
[code]....
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Apr 10, 2008
Hello,
Any help here much appreciated.
I am using sql server 2000 to perform address cleansing. there is a point in my scripting when a table i pass values to becomes read/write.
i suspect this is when i run a cursor through the table.
Is anyone able to confirm for me whether running a cursor changes a table's properties?
Many thanks.
Tim
Ps as the table seems to be read/write it is harder to tell if NULLs are in the table and this is messing with joins I have further down the track.
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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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Jun 4, 2015
I have a cte:
With cte as
(
Select distinct Incident_ID,
ACTUAL_SEVERITY ,
Policy
From
table)
There are 3 ACTUAL_SEVERITY value: 1-High, 2-Medium and 3-Low
I need the final result be like:
Policy High Medium/Low
How do I write the script with out using temp table or cursor?
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Oct 10, 2008
i have issue on store proc with cursor, i would like to get the count of the record in table_A , but both @@CURSOR_ROWS and @@ROWCOUNT doesn't give me the correct record count
Code:
DECLARE @mycursor CURSOR
SET @mycursor = CURSOR FOR
SELECT * FROM TABLE_A
SELECT @@CURSOR_ROWS AS 'RowReturn'
SELECT @@ROWCOUNT AS 'COUNT'
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May 10, 2006
Hi!
How can I get the size of a cursor variable (the number of rows in it)???
Thank you!
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Oct 21, 2015
I have been trying to write a cursor to fetch required data from table but somehow its running forever and inserting duplicate records.
I have a temp table named getInvoice where I have five important columns
1. invoice number
2.group
3.invoice status
4. Invoice Expiration date
5. Creation date time
and some other columns.One invoice number can belong to one or more group and there can be one or more records for a particular invoice number and group.
An example is below :
InvoiceNumber Group InvoiceStatus InvoiceExpirationDate CreationDateTime
579312 01 3 NULL 2003-03-24 00:00:00
579312 01 2 2015-12-14 00:00:00 2005-12-24 00:00:00
579312 02 2 2003-12-21 00:00:00 2005-10-12 00:00:00
321244 01 2 2015-12-21 00:00:00 2005-10-12 00:00:00
321244 01 3 2010-12-21 00:00:00 2010-12-21 00:00:00
My query condition is complex and that is why Im facing problem retrieving the output.I need a cursor for getting distinct invoice number from the table and for each invoice number I need to get the latest record for each invoice number and suffix combination based on creationdateand time column and if that record has invoice status of 2 and also the invoice expiration date can be either null or greater than today's date, then I need to get that record and put it in a temp table.
The query I wrote is below
declare myData cursor for
select distinct invoiceNumber from #getInvoice
declare @invoiceNumber varchar(30)
open myData
fetch next from myData into @invoiceNumber
while @@FETCH_STATUS = 0
[Code] .....
This query runs forever and doesn't stop.
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Jul 6, 2000
I am importing a text file that list invoice columns. The invoice detail table needs the line items to be listed with sequential numbers. I import the file to a temp table to do the work in and I know I need to have the cursor do loop through and count, however, I have no more hair to pull out.
The table looks something like this.
inv# SKU
1001 ABC123
1001 DEF456
1001 GHI789
1002 123DEF
1002 456GHI
1002 876HGT
I need the cursor to go through and number each line, something like this.
inv# SKU Line#
1001 ABC123 1
1001 DEF456 2
1001 GHI789 3
1002 123DEF 1
1002 456GHI 2
1002 876HGT 3
Any help is greatly appriciated.
Thanks
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Oct 29, 2015
This is the scenario in my environment
WaitType Wait_Sec Resource_Sec Signal_Sec Wait Count Wait Percentage
WRITELOG920039.89887485.89 32554.00 23446032975.02
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Dec 23, 2004
I need to return a computed value and have no idea how to do it.
I have a table of dates:
Column DataType
RowID int
Person nvarchar(20)
Percent real
Date smalldatetime
What I need is the Annual Fiscal Year Average. The fiscal year starts and ends in June. I need it to add all Percent values between the months of June 2001 - June 2002, June 2002 - June 2003, and so on and on....
A result set like this...
Person - FiscalYear - FiscalYearResult
John D - 2001 - .58
John D - 2002 - .52
John D - 2003 - .50
Jane D - 2001 - .58
Jane D - 2002 - .52
Jane D - 2003 - .50
so on and so on...
How do I write this in Transact-SQL to get this result set...
Thanks,
Roger
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Jul 1, 1999
Hi all,
I need to run a long process in a cursor. I'd like to perform a special action every 10,000th row. How would you implement that using Transact-SQL?
Many thanks,
-Kevin Kline
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Oct 28, 2015
I have a Stored Procedure. In that SP, I am calling 10 table-valued user defined function to calculate different pricing charges (lets say delivery charge, fuel surcharge, etc). In that SP, there is one Temporary table to store the data required for calculating charges and some columns will hold the calculated data in the same temp table.
1. First step is loading the columns in Temporary table in the SP which are required for calculating charges (will be having 1000 records for example)
2. Second step is to calculate charges ( delivery charge, fuel surcharge, etc). for each rows(1000 rows) from the temporary table using table-valued user defined functions one by one*Call function to calculate DeliveryCharge in the SP and calculate DeliveryCharge for all 1000rows. For this step i am using cursor to loop through 1000records and find DeliveryCharge for each row and update it in the DeliveryCharge column in the same temporary table. I am using 10 cursors for 10 different price calculations in the SP
3. Finally, the SP will return that 1000 records with calculated prices. The question is how to avoid Cursor for these operations. How to pass all 1000 records to a function and get table valued results from that function and update those results in the Temporary table without using cursors?
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Jun 16, 2015
Am I using the cursor feature properly here? -- of course there would be actual processing (replacing a while loop) going on and not simple print statements.
Declare @BadgeNumber varchar(20), @name varchar(100), @phone int, @status varchar(25)
Declare cursor Cursor For
Select jt.BadgeNumber, tj.Name, jt.Phone, zt.status
From employees jt
join employeestatus zt
On jt.id = zt.id
[code]....
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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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Sep 14, 2015
I write few lines to do a bottom-up calculation, with 'fetch last' and 'fetch prior'.
It seems that the condition 'WHILE @@FETCH_STATUS = 0' does not work when cursor arrives at the first line, as there is an error message:
'(1 row(s) affected)
6255.84
(1 row(s) affected)
Msg 16931, Level 16, State 1, Line 18
There are no rows in the current fetch buffer.
The statement has been terminated.'
how to fix the error?
Here is my code:
DECLARE @lastprice real
DECLARE @updatedprice real
DECLARE @updatedRe real
DECLARE @updatedAUX real
SET @lastprice = (
SELECT Close_P from #ClosePrice where #ClosePrice.DateTD = (SELECT MAX(#ClosePrice.DateTD) FROM #ClosePrice)
)
[code].....
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Jul 13, 2015
Is it possible to write query from different database engines?
One database A is in local server database engine and another database B is in another server located in different system.
Now , I need to write a query in database A based on table A and table B (another database engine).
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Aug 12, 2015
I have a table which is a configuration table, I have declared cursors whereby the cursor doesn't get to all the rows in the configuration table even though there is no where clause in the select statement and the cursor ought to loop/go through every single row. Changed the cursor to the below and it started to go through all rows.
DECLARE XXX CURSOR LOCAL FORWARD_ONLY STATIC READ_ONLY TYPE_WARNING FOR
Now with the definition above, I am now having a situation whereby a column in row 1 which is a bit data type and has a value of 0, then the cursor gets to row 2 the same column but with a value of 1 and an if statement in the cursor saying
IF @row2columnX = 0 set @myval = 99
For some reason within the cursor the IF statement is being implemented even though the value in row2 columnX is = 1
I find it so weird. Is there a database property that affects the way cursors react or is there something that I am doing incorrectly ? Lastly, I would like to have a simple cursor template which simply goes through a configuration table or any table.
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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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Jul 15, 2015
After parsing unformatted XML file, we are loading XML in formatted for into a SQL table rows, so that SSIS can read it and load it to DW tables.
We have a flag column in the above table, which gets updated after each row is extracted successfully by the Procedure(cursor inside Proc) used in SSIS, but cursor inside Procedure is taking 16 hours to load 100k xml source files, if we remove cursor and use bulk load then it takes only 1.5 Hrs. but with bulk load we cannot update the flags.
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Aug 20, 2015
CREATE TABLE [dbo].[multiple](
[emp_code] [varchar](20) NULL,
[swip_in] [nvarchar](255) NULL,
[swipe_in_date] [nvarchar](255) NULL,
[swipe_out] [nvarchar](255) NULL,
[Swipe_out_date] [nvarchar](255) NULL
[Code] ....
I want result like below:
Empcode swip_in1, swip_out1, swip_in2, swip_out2, swip_in3, swip_out3
Condition :
1. 24 hrs who are multiple time punched
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Jun 25, 2015
We are not allowed to write delete statement in a function. It will give the below error.
"Invalid use of a side-effecting operator 'DELETE' within a function."
We will get the same error for truncate/drop statements.
What is the reason behind this error?
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Jun 19, 2015
I'm trying to insert records into "holding" table and write back identity column value (Entry_Key) to the original table. So my setup is I have two tables; tblEWPBulk and tbleFormsUploadEWP. Users will enter records into tblEWPBulk and use BatchID to group records, once batch entry has been completed (usually less than 30 records) user will click on UploadAll button and insert records (not all fields) into tbleFormsUploadEWP. One record in tblEWPBulk can be sent multiple times to the holding table but tblEWPBulk will need to have latest Entry_Key captured. Records are sent from holding table to DB2 z/VSE using SQL stored procedure and based on certain logic records are marked uploaded or certain error capture... that part works fine.
So for example I want to send
BatchID, AccountNumber, Period, ReceiveDate, AccountType, ReturnType, NetProfitOrLoss, TaxCredit FROM tblEWPBulk to the holding table and write back Entry_Key (identity column) back to the record in tblEWPBulk (field called UploadEntryKey). As I said one record could be sent to the holding table multiple times until uploaded or deleted and UploadEntryKey always needs to be updated so that when results are processed response from the DB2 can be inserted into table and presented to the user.
No foreign key relationship exists since records in the holding table get sent to the archive table and table is truncated and entry_key starting value reset back to 2000... just some DB2 restrictions.
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Aug 4, 2015
I am having table on which i want to fire a query on.
table structure is as follows :
Table1
Table1ID bigint PK
City nvarchar(10)
FirstName nvarchar(10)
LastName nvarchar(10)
MiddleName nvarchar(10)
State nvarchar(10)
FirstName nvarchar(10)
LastName nvarchar(10)
LLDCode nvarchar(20)
MMDCode nvarchar(20)
LastModified datetime
CreatedDateTime datetime
LastUpdatedDateTime datetime
SSN# nvarchar(20)
I have to write a parameterised stored procedure where multiple values will be pass as input to SP.
E:g: 1) SSN# if no record found by SSN# then 2) Find by LLDCode OR MMDCode
This logic can be implemented using UNION to join output of 2 queries and selecting by LastUpdatedDateTime this query will return the Table1ID.
Now we will fire the query on table2 where this Table1ID as FK in Table2 and we will return the filed SSXML from Table2.How to do this ?
Table2 structure.
Table2ID PK
Table1ID FK
Name
Department
SSXML
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May 24, 2015
I have a dataset which is like:
Month, Day, Location, TotalSales
Jan 1 A 100
Jan 1 B 200
Jan 14 A 120
Feb 2 A 130
Mar 5 B 150
I want to transform the dataset using sql query into the following format:
Month, Day, LocationATotalSales, LocationBTotalSales, TotalSales
Jan 1 100 200 300
Jan 14 120 0 120
Feb 2 130 0 130
Mar 5 0 150 150
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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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Sep 18, 2015
I appear to be having an issue where the @LetterVal and @Numeric variables aren't resetting for each loop iteration, so if no results are found, it just returns the previous loops values since they aren't overwritten. Below is the stored procedure I've created:
ALTER PROCEDURE [dbo].[ap_CalcGrade]
-- Add the parameters for the stored procedure here
@studId int,
@secId int,
@grdTyCd char(2),
@grdCdOcc int,
@Numeric int output,
[Code] ....
And below is the "test query" I'm using:
-- *** Test Program ***
Declare @LetterVal varchar(2), -- Letter Grade
@Numeric int, -- Numeric Grade
@Result int -- Procedure Status (0 = OK)
Execute @Result = dbo.ap_CalcGrade 102, 86, 'QZ', 3,
[Code] ....
This is resulting in an output of:
A+ 97
A+ 97
C- 72
but it should be returning the output below due to the 2nd data set not being valid/found in the sp query:
A+ 97
No Find
C- 72
I'm sure this is sloppy and not the most efficient way of doing this, so whats causing the errant results, and if there is any better way I should be writing it. Below is the assignment requirements:
Create a stored procedure using the STUDENT database called ap_CalcGrade that does the following:
1. Accepts as input STUDENT_ID, SECTION_ID, GRADE_TYPE_CODE, and GRADE_CODE_OCCURRENCE
2. Outputs the numeric grade and the letter grade back to the user
3. If the numeric grade is found, return 0, otherwise return 1
4. You must use a cursor to loop through the GRADE_CONVERSION table to find the letter grade
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Sep 30, 2015
I am trying to use FOR XML under SQL Server 2014 to write out a large XML data set. I want it to look like
<CVS_Member_Add_Change>
<RecordType>3</RecordType>
<Carrier>1266</Carrier>
<MultiBirthCode>0000000</MultiBirthCode>
<MemberType></MemberType>
[Code] ....
That's how it looks when you click on the results of a small subset of the query. Just what I want. Unfortunately when you try to right click and save it you get
<dataroot><CVS_Member_Add_Change><RecordType>3</RecordType><Carrier>1266</Carrier<MultiBirthCode>0000000</MultiBirthCode><MemberType></MemberType<LanguageCode>1</LanguageCode><DURFlag></DURFlag><DURKey></DURKey><SocialSecurityNumber>000000000</SocialSecurityNumber</CVS_Member_Add_Change>
Everything being on one line blows up the translator application that reads the data.
The FOR XML statement copied out of the query is below.
FOR XML RAW ('CVS_Member_Add_Change'), ROOT('dataroot'), ELEMENTS
GO
Is there a way in the T-SQL to force it to break lines neatly?
Is there a way to force it to a specific file name or directory?
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Jun 20, 2013
How do you know when you should use COUNT and when to use SUM functions?
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Jun 29, 2015
I have the following query and want the results within my query although I want to be able to get the SUM of my COUNT results. So basically I want the SUM of [Document Count] within my query/
DECLARE @Date date;
SET @date = '02/05/2015'
SELECT CONVERT(VARCHAR,CONVERT(Date, @Date, 103),101) AS [Date Scanned], (SELECT COUNT(*) FROM QUEUE WHERE date_scanned = @Date) AS [Total Scanned],
COUNT(dbc_state) AS [Document Count],
CASE
WHEN dbc_state = 1 AND ON_HOLD = '1' THEN 'On Hold'
[code]....
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