Requirements: Write a MS SQLServer 2000 Storeed Procedure to: 1. Update the Tasks table by assigning the task to an Employee. 2. Incrememnt the employee's Emp_Task_Cnt for each Task assigned. 3. Match the Employee to the Task by matching the Task_Requirement to the Emp_Specialty. 4. Do not exceed the employee's Max_Task_Cnt.
I have a working solution to the requirements, but it involves using cursor logic. For all the obvious reasons, I wanted to avoid using a cursor (or cursor-like looping structure) but could not figure out any other way to avoid processing the Task table one record at a time because of the: "4. Do not allow an Employee's Task_Cnt to exeed the Max_Task_Cnt."
Q: Is there a way to do this without using a cursor and still meet all of the requirements?
This query uses a cursor to fetch a parameter and pass it to another Stored proc. Is there a straightforward way to do this without using a cursor?
declare @deleteunassigned int declare cur_unassigned cursor for select distinct a.cust_cont_pk from cust_cont a, cont_fold_ass b (NOLOCK) where a.cust_cont_pk != b.CUST_CONT_PK open cur_unassigned fetch next from cur_unassigned into @deleteunassigned while @@fetch_status = 0 begin exec spDeleteCustContbypk @deleteunassigned fetch next from cur_unassigned into @deleteunassigned end close cur_unassigned deallocate cur_unassigned GO
declare @deleteunassigned int declare cur_unassigned cursor for SELECT DISTINCT a.cust_cont_pk FROM cust_cont a, cont_fold_ass b (NOLOCK) WHERE a.cust_cont_pk != b.CUST_CONT_PK open cur_unassigned FETCH NEXT FROM cur_unassigned INTO @deleteunassigned while @@fetch_status = 0 begin exec spDeleteCustContbypk @deleteunassigned FETCH NEXT FROM cur_unassigned INTO @deleteunassigned end close cur_unassigned deallocate cur_unassigned GO
Thought I'd got my head round using a set-based approach but my brain's gone dead on this one
CREATE TABLE #mytable (SWID INT , T INT , DateA DATETIME , DateB DATETIME)
INSERT #mytable (swid , t , DateA , DateB)
SELECT 63967 , 1 , CAST('31-Mar-2006' AS DATETIME),CAST( '01-Aug-2006'AS DATETIME) UNION ALL SELECT 63967 , 1 , CAST('31-Mar-2006' AS DATETIME),CAST( '01-Feb-2007'AS DATETIME) UNION ALL SELECT 63967 , 0 , CAST('15-Mar-2006'AS DATETIME) , CAST('01-Aug-2006'AS DATETIME) UNION ALL SELECT 63967 , 0 , CAST('15-Mar-2006'AS DATETIME) , CAST('01-Feb-2007'AS DATETIME) UNION ALL SELECT 63967 , 9999 ,CAST( '28-Feb-2006'AS DATETIME) , CAST('01-Aug-2006'AS DATETIME) UNION ALL SELECT 63967 , 9999 ,CAST( '28-Feb-2006'AS DATETIME) , CAST('01-Feb-2007'AS DATETIME) UNION ALL SELECT 63967 , 9999 , CAST('31-Jan-2006'AS DATETIME) , CAST('01-Aug-2006'AS DATETIME) UNION ALL SELECT 63967 , 9999 ,CAST( '31-Jan-2006'AS DATETIME) , CAST('01-Feb-2007'AS DATETIME) UNION ALL SELECT 10051 , 1 ,CAST('31-Mar-2006'AS DATETIME) , CAST('01-Aug-2006'AS DATETIME) UNION ALL SELECT 10051 , 1 ,CAST( '31-Mar-2006'AS DATETIME) , CAST('01-Feb-2007'AS DATETIME) UNION ALL SELECT 10051 , 0 , CAST('15-Mar-2006' AS DATETIME), CAST('01-Aug-2006'AS DATETIME) UNION ALL SELECT 10051 , 0 , CAST('15-Mar-2006'AS DATETIME) , CAST( '01-Feb-2007'AS DATETIME) UNION ALL SELECT 10051 , 9999 ,CAST( '28-Feb-2006'AS DATETIME) ,CAST( '01-Aug-2006'AS DATETIME) UNION ALL SELECT 10051 , 9999 ,CAST( '28-Feb-2006'AS DATETIME) , CAST('01-Feb-2007'AS DATETIME) UNION ALL SELECT 10051 , 9999 ,CAST( '31-Jan-2006'AS DATETIME) , CAST('01-Aug-2006'AS DATETIME) UNION ALL SELECT 10051 , 9999 ,CAST( '31-Jan-2006'AS DATETIME), CAST('01-Feb-2007'AS DATETIME) UNION ALL SELECT 10051 , 9999 , CAST('31-Dec-2005'AS DATETIME) , CAST('01-Aug-2006'AS DATETIME) UNION ALL SELECT 10051 , 9999 ,CAST( '31-Dec-2005' AS DATETIME), CAST('01-Feb-2007' AS DATETIME) UNION ALL SELECT 10051 , 9999 ,CAST('30-Nov-2005'AS DATETIME) , CAST( '01-Aug-2006' AS DATETIME) UNION ALL SELECT 10051 , 9999 ,CAST( '30-Nov-2005' AS DATETIME), CAST('01-Feb-2007' AS DATETIME) select * from #mytable order by SWID desc, DateA desc
The Columns where T values are 1 and 0 are OK having already been derived. I need to UPDATE the remaining rows from the Default T Value of 9999 to Decrementing values (starting at -1) commencing at the highest remaining (ie non 9999 T Value) DateA value and working 'backwards' 'grouping' on SWID
UCOA is to be updated with the average of all previous transactions where the climstid and isin_id are the same.
example
take case where holdid(transaction no) in the sample data is 14. What i need is a query which will sum up the data in the tran_value column upto holdid 5.
Again I need a set based solution. Gurus .. please help
create table holding ( id1 int, id2 int, datefield datetime, holding int, quantity int ) go
insert into holding select 1,1,'20031210',10,null union select 1,1,'20031211',30,null union select 1,1,'20031212',70,null union select 1,1,'20031213',60,null union select 1,2,'20031210',100,null union select 1,3,'20031210',100,null union select 1,3,'20031210',10,null
go
Quantity is based on Holding for the day - Holding for the previous transaction involving same id1 ,id2.
Looking for a set based solution to the following SQL problem. I've got a solution that uses a while loop but I have a feeling that there is a better way to do this!
I will use a simplified dataset as an example as I don't want to swamp you with too much detail about my real table structures etc...
I have the following tables (plus some sample data) :
insert into dbo.VehicleModel select 1, 'RT 100', NULL union all select 2, 'TGB ACKROS TEC', NULL union all select 3, 'TB 50 PREDATOR 2', NULL union all select 4, 'TGB 409 CRUISE 50', NULL union all select 5, 'ESCOR SUPER SONIC 400SL', NULL union all select 6, 'SUPER SONIC 150 XI', NULL union all select 7, 'RT X 350 SERIES', NULL union all select 8, 'TB SALON 4000', NULL
insert into dbo.VehicleModelNorm select 1, 'ACE' union all select 2, 'TGB ACKROS' union all select 3, 'SUPER SONIC' union all select 4, 'TB 50' union all select 5, 'RT' union all select 6, 'TGB' union all select 7, 'RT' union all select 8, 'TB SALON'
What I need to do is update the VehicleModelNorm column in VehicleModel with the relevant ID from the VehicleModelNorm table. Sounds easy enough BUT here is the catch. In my vehicles table the VehicleModel are the actual vehicle model names. In my vehicleNorm table I have a more generalized name. What I want to do is look at each VehicleModel, try to find a match in the VehicleModelNorm table, if there is no match then chop off the last word and look again.
For example, starting with 'RT 100 7 SERIES', I want to try to find an exact match for that in my vehicleModelNorm table. If there is no match, remove the last word and look for 'RT 100 7' then look for 'RT 100' etc...
How can I do this in a set based solution? I can do this with a WHILE loop but I have a feeling it might be possible to do this with a CTE but I just can't get my head round it.
Does anyone have any good references they could recommend on Cursorbased SQL writing? I have to create SQL that can loop though recordssimular to VB loops and I have been told that this is the way to go.Any recommendations would be helpful.
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
I am replacing cursor logic in a SP to a setbased approach to scale better. My setbased approach seems to be better but it runs very fractionaly faster (execution time) than the cursor approach for a single run in test environment. I think resource cost wise, my set based approach should be better. Number of rows iterated thru this cursor is small (0-150). This particular SP is called over 2000 times in production everyday. Is it worth the trouble changing this if we get only marginally benefits, will my set-based approach work better on a server that has lot of activity (lot of connections etc). Our db server runs at about 75-85% cpu usage daily and this particular SP accounts to 13% CPU usage for 2000+ executions.
If the data set involved in cursors is small, is it worth the trouble changing them to set based approaches? Am I doing right to change this SP to setbased approach.
Hey All, I am trying to convert cursor based stored proc in to set based simple statements stored proc. As this stored proc has created alot of performance issues. I am confuse now as I spent my most of time creating this stored proc. Please advise how can I convert this stored proc into set base simple statment.
Thanks in advance.
SET ANSI_NULLS ON GO SET QUOTED_IDENTIFIER ON GO
ALTER Procedure [SampleStoredProc] @Var1varchar(20), @Var2varchar(3), @Var3 varchar(2) = 'Dummy' As
fetch next from mtcursor into @TableName, @FieldName, @FieldSelect, @FieldTitle, @sequence, @extraCriteria, @title, @ConvertRoutine if @@fetch_status <> 0 set @loopCtrl2 = 1
if (@TableName <> @holdTable) or (@extraCriteria <> @holdCriteria) or (@title <> @holdTitle) or (@loopCtrl2 = 1) begin
set @tableBuild = @tableBuild + ')' set @insertSQL = ' declare mtcursor2 cursor for select FieldName, FieldTitleTxt, ExtraUpdateMatchTxt, PullForUpdateInd, PullForAddInd, PullForDeleteInd, PullForAnyUpdateInd from MyTable1 where TableName = ''' + @holdTable + ''' and ExtraCriteriaTxt = ''' + @holdCriteria + ''' and PageTitleTxt = ''' + @holdTitle + ''' and Column1 = ''' + @Var2 + ''' order by FieldDisplaySequenceNbr
declare @FieldName varchar(50) declare @FieldTitle varchar(50) declare @ExtraUpdateMatch varchar(500) declare @PullUpdate bit declare @PullAdd bit declare @PullDelete bit declare @PullAnyUpdate bit
open mtcursor2 fetch next from mtcursor2 into @FieldName, @FieldTitle, @ExtraUpdateMatch, @PullUpdate, @PullAdd, @PullDelete, @PullAnyUpdate
WHILE (@@fetch_status = 0) begin
if substring(@FieldTitle,1,1) = ''#'' set @FieldTitle = substring(@FieldTitle,2,len(@FieldTitle) - 1) else set @FieldTitle = '''''''' + @FieldTitle + ''''''''
if @PullAnyUpdate = 1 begin exec (''INSERT MyTable2 SELECT ''''' + @Var1 + ''''', A.UnitNbr, ''''' + @holdTitle + ''''', '' + @FieldTitle + '', A.'' + @FieldName + '', B.'' + @FieldName + '', ''''U'''' from #tempTable A left join #tempTable B on B.UnitNbr = A.UnitNbr and B.Val1 = ''''U'''' '' + @ExtraUpdateMatch + '' where A.Val1 = ''''O'''' and B.Val1 = ''''U'''''') end else begin if @PullUpdate = 1 exec (''INSERT MyTable2 SELECT ''''' + @Var1 + ''''', A.UnitNbr, ''''' + @holdTitle + ''''', '' + @FieldTitle + '', A.'' + @FieldName + '', B.'' + @FieldName + '', ''''U'''' from #tempTable A left join #tempTable B on B.UnitNbr = A.UnitNbr and B.Val1 = ''''U'''' '' + @ExtraUpdateMatch + '' where A.Val1 = ''''O'''' and B.Val1 = ''''U'''' and ((A.'' + @FieldName + '' <> B.'' + @FieldName + '') or (A.'' + @FieldName + '' is null and B.'' + @FieldName + '' is not null) or (A.'' + @FieldName + '' is not null and B.'' + @FieldName + '' is null)) '') end
if @PullAdd = 1 exec(''INSERT MyTable2 SELECT ''''' + @Var1 + ''''', UnitNbr, ''''' + @holdTitle + ''''','' + @FieldTitle + '', ''''n/a'''', '' + @FieldName + '', ''''A'''' from #tempTable A where Val1 = ''''A'''''') if @PullDelete = 1 exec(''INSERT MyTable2 SELECT ''''' + @Var1 + ''''', UnitNbr, ''''' + @holdTitle + ''''','' + @FieldTitle + '', '' + @FieldName + '', ''''n/a'''', ''''D'''' from #tempTable A where Val1 = ''''D'''''') fetch next from mtcursor2 into @FieldName, @FieldTitle, @ExtraUpdateMatch, @PullUpdate, @PullAdd, @PullDelete, @PullAnyUpdate end
close mtcursor2 deallocate mtcursor2'
exec (@tableBuild + ' insert into #tempTable select ' + @selectlist + ' from ' + @holdTable + ' where Id = ' + '''' + @Var1 + '''' + @holdCriteria + @insertSQL)
set @selectlist = 'Val1, Val2,' + @sequence + ' as UnitNbr' set @tableBuild = 'Create table #tempTable (Val1 varchar, Val2 int, UnitNbr varchar(20)' end
if @loopCtrl2 = 1 set @loopCtrl1 = 1 end
close mtcursor deallocate mtcursor
Delete from MyTable2 where ltrim(rtrim(PreviousValueTxt)) = ltrim(rtrim(EndorsedValueTxt)) and ActionTxt='U' and ID=@Var1 declare deletecursor cursor for select distinct PageNm from MyTable2 where Id = @Var1 and ActionTxt = 'U'
open deletecursor
fetch next from deletecursor into @PageName
while @@fetch_status = 0 begin if (SELECT count(*) from MyTable2 where Id = @Var1 and PageNm = @PageName and ActionTxt = 'U' and PreviousValueTxt <> EndorsedValueTxt ) = 0 DELETE FROM MyTable2 where Id = @Var1 and PageNm = @PageName and ActionTxt = 'U' fetch next from deletecursor into @PageName end
close deletecursor deallocate deletecursor
declare convertcursor cursor for select a.PreviousValueTxt, a.EndorsedValueTxt, A.EntrySequenceNbr, A.ActionTxt, b.ConversionRoutineTxt from MyTable2 a inner join MyTable1 b on a.PageNm = b.PageTitleTxt and a.FieldNm = b.FieldTitleTxt and b.ConversionRoutineTxt <> '' where a.Id = @Var1
open convertcursor
fetch next from convertcursor into @PrevValue, @NewValue, @Sequence, @ActionTxt, @ConvertRoutine
while @@fetch_status = 0 begin set @ConvertSQL = 'declare @PrevConverted varchar(50) declare @NewConverted varchar(50)' set @ConvertSQL = @ConvertSQL + ' declare @ConvertInput varchar(50) '
set @ConvertSQL = @ConvertSQL + ' declare @Var3 varchar(2) ' set @ConvertSQL = @ConvertSQL + ' set @Var3 = ''' + @Var3 + ''''
if @ActionTxt = 'A' set @ConvertSQL = @ConvertSQL + ' set @PrevConverted = ''' + @PrevValue + '''' else begin set @ConvertSQL = @ConvertSQL + ' set @ConvertInput = ''' + @PrevValue + '''' set @ConvertSQL = @ConvertSQL + ' set @PrevConverted = (' + @ConvertRoutine + ')' end if @ActionTxt = 'D' set @ConvertSQL = @ConvertSQL + ' set @NewConverted = ''' + @NewValue + '''' else begin set @ConvertSQL = @ConvertSQL + ' set @ConvertInput = ''' + @NewValue + '''' set @ConvertSQL = @ConvertSQL + ' set @NewConverted = (' + @ConvertRoutine + ')' end
set @ConvertSQL = @ConvertSQL + ' update MyTable2 set PreviousValueTxt = @PrevConverted, EndorsedValueTxt = @NewConverted where EntrySequenceNbr = ''' + @Sequence + ''''
exec (@ConvertSQL)
fetch next from convertcursor into @PrevValue, @NewValue, @Sequence, @ActionTxt, @ConvertRoutine end
Create table #pageSeqTable (PageTitle varchar(50), PageSeq int) insert into #pageSeqTable select distinct PageTitleTxt, PageDisplaySequenceNbr from MyTable1 where Column1 = @Var2
select PageNm, RowNumber, FieldNm, PreviousValueTxt, EndorsedValueTxt, ActionTxt from MyTable2, #pageSeqTable b where Id = @Var1 and PageNm = b.PageTitle order by b.PageSeq, RowNumber, ActionTxt desc, EntrySequenceNbr
select @effDate = convert(char,EffectiveDate,101), @transEffDate = convert(char,TransactionEffectiveDt,101), @expDate = convert(char,LastTransactionEffectiveDt,101), @policyStatus = PolicyStatusCd, @reasAmendDesc = ReasonAmendedDes, @policyNumber = PolicyNumber, @riskState = StateName, @AmendPrem = convert(money,PremiumAmount) from SHPlaninfo A, SHSeleReasonAmended B, SHSeleStateCode C where Id = @Var1 AND Val2 = (select max(Val2) from SHPlanInfo where Id = @Var1) AND B.ReasonAmendedCd = A.ReasonAmendedCd AND C.StateCode = A.RiskState Select @PriorPrem = convert(money,PremiumAmount) FROM SHPlanInfo WHERE Id = @Var1 and Val2 = '0' Set @PremDiff = @AmendPrem - @PriorPrem
I know this question has been asked. And the usual answer is don't usecursors or any other looping method. Instead, try to find a solutionthat uses set-based queries.But this brings up several questions / senarios:* I created several stored procedures that take parameters and insertsthe data into the appropriate tables. This was done for easy access/usefrom client side apps (i.e. web-based).Proper development tactics says to try and do "code reuse". So, if Ialready have stored procs that do my logic, should I be writing asecond way of handling the data? If I ever need to change the way thedata is handled, I now have to make the same change in two (or more)places.* Different data from the same row needs to be inserted into multipletables. "Common sense" (maybe "gut instinct" is better) says to handleeach row as a "unit". Seems weird to process the entire set for onetable, then to process the entire set AGAIN for another table, and thenYET AGAIN for a third table, and so on.* Exception handling. Set based processing means that if one row failsthe entire set fails. Looping through allows you to fail a row butallow everything else to be processed properly. It also allows you togather statistics. (How many failed, how many worked, how many wereskipped, etc.)?? Good idea ?? The alternative is to create a temporary table (sandboxor workspace type thing), copy the data to there along with "status" or"valdation" columns, run through the set many times over looking forany rows that may fail, marking them as such, and then at the end onlydealing with those rows which "passed" the testing. Of course, in orderfor this to work you must know (and duplicate) all constraints so youknow what to look for in your testing.
I have a set of revenue records where there is a UNIT column and a REVCHARGE column. What I need to do is breakout the records into single records where the unit count is > 1 and calc the actual charge:
Ex:
Units REVCHG FIELD_A FIELD_B ..... 3 3.00 ABCD EFGH
I have a table when user add new sales or puchase will be added to this table ITEM_TXNS. The above date is part of the table for a ProductID . (The field is removed here) In order to calculate the balance amount using moving average, I must calculated the cost_out_amt first on the fly. When user add new sales I also need to determine the cost/unit for a product id using moving average. The problem is I can not just use sum, because i need to determine cost_out_amt for each sales first which will be calculated on the fly. The reason i dont store the cost_out_amt (instead calculate on the fly) because User could Edit the previous sales/purchase txn or Insert new sales for a previous date. Example THe record with ID 9. By Adding this txn with ID 9, would cause all the cost_out_amt will be incorrect (Using moving Average) if i store the cost_amout_out on entrying txn and need to be recalculated. Instead I just want to calculate on the fly and able to determine the cost avr for a specific point of time. Should I just use Cursor and loop all the record and calculate the cost or maybe I can just use on Select Statement?
I am begginner at best so I hope someone that is better can help.I have a stored procedure that updates a view that I wrote using 2cursors.(Kind of a Inner Loop) I wrote it this way Because I couldn'tdo it using reqular transact SQL.The problem is that this procedure is taking longer and longer to run.Up to 5 hours now! It is anaylizing about 30,000 records. I thinkpartly because we add new records every month.The procedure works like this.The first Cursor stores a unique account and duedate combination fromthe view.It then finds all the accts in the view that have that account duedatecombo and loads them into Cursor 2 this groups them together for datamanipulation. The accounts have to be grouped this way because aaccount can have different due dates and multiple records within eachaccount due date combo and they need to be looked at this way aslittle singular groups.Here is my procedure I hope someone can shead some light on this. Myboss is giving me heck about it. (I think he thinks Girls cant code!)I got this far I hope someone can help me optimize it further.CREATE PROCEDURE dbo.sp_PromiseStatusASBEGINSET NOCOUNT ON/* Global variables */DECLARE @tot_pay moneyDECLARE @rec_upd VARCHAR(1)DECLARE @todays_date varchar(12)DECLARE @mActivityDate2_temp datetimeDECLARE @tot_paydate datetime/* variables for cursor ACT_CUR1*/DECLARE @mAcct_Num1 BIGINTDECLARE @mDueDate1 datetime/* variables for ACT_CUR2 */DECLARE @mAcct_Num2 BIGINTDECLARE @mActivity_Date2 datetimeDECLARE @mPromise_Amt_1 moneyDECLARE @mPromise_Status varchar(3)DECLARE @mCurrent_Due_Amt moneyDECLARE @mDPD intDECLARE @mPromise_Date datetimeSELECT @todays_date =''+CAST(DATEPART(mm,getdate()) AS varchar(2))+'/'+CAST(DATEPART(dd,getdate()) AS varchar(2))+'/'+CAST(DATEPART(yyyy,getdate()) AS varchar(4))+''DECLARE ACT_CUR1 CURSOR FORSELECT DISTINCTA.ACCT_NUM,A.DUE_DATEFROM VWAPPLICABLEPROMISEACTIVITYRECORDS AOPEN ACT_CUR1FETCH NEXT FROM ACT_CUR1 INTO @mAcct_Num1 , @mDueDate1WHILE (@@FETCH_STATUS = 0)BEGINSELECT @rec_upd = 'N 'DECLARE ACT_CUR2 CURSOR FORSELECTB.ACCT_NUM,B.ACTIVITY_DATE,B.PROMISE_AMT_1,B.PROMISE_STATUS,B.CURRENT_DUE_AMT,B.DAYS_DELINQUENT_NUM,B.PROMISE_DATE_1FROM VWAPPLICABLEPROMISEACTIVITYRECORDS B (UPDLOCK)WHERE B.ACCT_NUM = @mAcct_Num1ANDB.DUE_DATE = @mDueDate1ORDER BY B.ACCT_NUM,B.DUE_DATE,B.ACTIVITY_DATE,CASEB.Time_ObtainedWHEN 0 THEN 0ELSE 1END Desc, B.Time_ObtainedOPEN ACT_CUR2FETCH NEXT FROM ACT_CUR2INTO @mAcct_Num2 ,@mActivity_Date2,@mPromise_Amt_1,@mPromise_Status ,@mCurrent_Due_Amt,@mDPD,@mPromise_DateWHILE (@@FETCH_STATUS = 0)BEGIN----CHECK------------------------------------------------------------------------DECLARE @PrintVariable2 VARCHAR (8000)--SELECT @PrintVariable2 = CAST(@MACCT_NUM2 AS VARCHAR)+''+CAST(@MACTIVITY_DATE2 AS VARCHAR)+' '+CAST(@MPROMISE_AMT_1 ASVARCHAR)+' '+CAST(@MPROMISE_STATUS AS VARCHAR)+''+CAST(@mCurrent_Due_Amt AS VARCHAR)+' '+CAST(@mDPD AS VARCHAR)+''+CAST(@mPromise_Date AS VARCHAR)--PRINT @PrintVariable2----ENDCHECK------------------------------------------------------------IF @mDPD >= 30BEGINSELECT @tot_pay = SUM(CONVERT(FLOAT, C.PAY_AMT))FROM vwAplicablePayments CWHERE C.ACCT_NUM = @mAcct_Num2ANDC.ACTIVITY_DATE >= @mActivity_Date2ANDC.ACTIVITY_DATE < @mActivity_Date2 + 15----CHECK------------------------------------------------------------------------DECLARE @PrintVariable3 VARCHAR (8000)--SELECT @PrintVariable3 ='Greater=30 DOLLARS COLLECTED'--PRINT @PrintVariable3----ENDCHECK------------------------------------------------------------ENDELSE IF @mDPD < 30BEGINSELECT @tot_pay = SUM(CONVERT(FLOAT, C.PAY_AMT))FROM vwAplicablePayments CWHERE C.ACCT_NUM = @mAcct_Num2ANDC.ACTIVITY_DATE >= @mActivity_Date2ANDC.ACTIVITY_DATE BETWEEN @mActivity_Date2 AND@mPromise_Date + 5----CHECK----------------------------------------------------------------------DECLARE @PrintVariable4 VARCHAR (8000)--SELECT @PrintVariable4 ='Less 30 DOLLARS COLLECTED'--PRINT @PrintVariable4----END CHECK------------------------------------------------------------END----------------------------------------MY REVISEDLOGIC-------------------------------------------------------IF @rec_upd = 'N'BEGINIF @mDPD >= 30BEGINSELECT @mActivityDate2_temp = @mActivity_Date2 + 15--DECLARE @PrintVariable5 VARCHAR (8000)--SELECT @PrintVariable5 =' GREATER= 30 USING ACTVITY_DATE+15'--PRINT @PrintVariable5ENDELSE IF @mDPD < 30BEGINSELECT @mActivityDate2_temp = @mPromise_Date + 5--DECLARE @PrintVariable6 VARCHAR (8000)--SELECT @PrintVariable6 =' LESS 30 USING PROMISE_DATE+5'--PRINT @PrintVariable6ENDIF @tot_pay >= 0.9 * @mCurrent_Due_Amt--used to be promise amtBEGINUPDATE VWAPPLICABLEPROMISEACTIVITYRECORDSSET PROMISE_STATUS = 'PK',TOTAL_DOLLARS_COLL = @tot_payWHERE CURRENT OF ACT_CUR2--This statement updates the time that the status was placedinto PK.IF @mPromise_Status IN ('PTP','OP')BEGINUPDATE VWAPPLICABLEPROMISEACTIVITYRECORDSSET Status_Date = @todays_dateWHERE CURRENT OF ACT_CUR2ENDSELECT @rec_upd = 'Y 'ENDIF ((@tot_pay < 0.9 * @mCurrent_Due_Amt) OR @tot_pay IS NULL)AND( @mActivityDate2_temp > @todays_date )--need to put 1dayof month here for snapshot9/01/2004BEGINUPDATE VWAPPLICABLEPROMISEACTIVITYRECORDSSETPROMISE_STATUS = 'OP'WHERE CURRENT OF ACT_CUR2--This statement updates the time that the status was placedinto OP which is the original Activity Date.--The record will hold this date until it goes into PK,PB,orIP.IF @mPromise_Status IN ('PTP','OP')BEGINUPDATE VWAPPLICABLEPROMISEACTIVITYRECORDSSET Status_Date = @mActivity_Date2WHERE CURRENT OF ACT_CUR2ENDENDELSE IF ((@tot_pay < 0.9 * @mCurrent_Due_Amt) OR @tot_pay ISNULL)AND( @mActivityDate2_temp <= @todays_date )--need to put 1dayof month here for snapshot 9/01/2004BEGINUPDATE VWAPPLICABLEPROMISEACTIVITYRECORDSSETPROMISE_STATUS = 'PB',TOTAL_DOLLARS_COLL = case when @tot_pay is nullthen 0 else @tot_pay endWHERE CURRENT OF ACT_CUR2--This statement updates the time that the status was placedinto PB.IF @mPromise_Status IN ('PTP','OP')BEGINUPDATE VWAPPLICABLEPROMISEACTIVITYRECORDSSET Status_Date = @todays_dateWHERE CURRENT OF ACT_CUR2ENDENDENDELSE IF @rec_upd = 'Y'BEGINUPDATE VWAPPLICABLEPROMISEACTIVITYRECORDSSETPROMISE_STATUS = 'IP',TOTAL_DOLLARS_COLL = 0WHERE CURRENT OF ACT_CUR2--This statement updates the time that the status was placedinto IP.IF @mPromise_Status NOT IN ('IP')BEGINUPDATE VWAPPLICABLEPROMISEACTIVITYRECORDSSET Status_Date = @todays_dateWHERE CURRENT OF ACT_CUR2ENDENDFETCH NEXT FROM ACT_CUR2 INTO @mAcct_Num2,@mActivity_Date2,@mPromise_Amt_1,@mPromise_Status ,@mCurrent_Due_Amt,@mDPD,@mPromise_DateENDCLOSE ACT_CUR2DEALLOCATE ACT_CUR2FETCH NEXT FROM ACT_CUR1 INTO @mAcct_Num1 , @mDueDate1ENDCLOSE ACT_CUR1DEALLOCATE ACT_CUR1SET NOCOUNT OFFENDGO
VB.NET 2005 Express and SQL Server 2005 Express - NOT saving updates to DB - SOLUTION!
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The following article is bogus and confusing:
How to: Manage Local Data Files - Setting 'Copy to Output Directory' to 'Do not copy' http://msdn2.microsoft.com/en-us/library/ms246989.aspx
You must manually copy the database file to the output directory AFTER setting 'Copy to Output Directory' to 'Do not copy'.
Do not copy
The file is never copied or overwritten by the project system. Because your application creates a dynamic connection string that points to the database file in the output directory, this setting only works for local database files when you manually copy the file yourself.
You must manually copy the database file to the output directory AFTER setting 'Copy to Output Directory' to 'Do not copy'.
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The above article is bogus and confusing.
This is rediculous!
This is the most vague and convoluted bunch of nonsince I've ever come accross!
Getting caught out on this issue for the 10th time! And not being able to find an exact step-by-step solution.
--------------------------
I've tried it and it doesn't work for me.
Please don't try what the article eludes to as I'm still sorting out exactly what is supposed to be happening.
If you have a step-by-step procedure that can be reproduced this properly please PM me.
I would like to test its validity then update this exact post as a solution rather than just another dicussion thread.
Many thanks.
This is the exact procedure I have come up with:
NOTE 1: DO NOT allow VB.net to copy the database into its folders/directorys.
NOTE 2: DO NOT hand copy the database to a folder/directory in your project.
Yes, I know its hard not to do it because you want your project nice and tidy. I just simply could NOT get it to work. You should NOT have myData.mdf listed in the Solution Explorer. Ever.
Create a folder for your data following NOTE 2.
Copy your data to that folder. * mine was C:mydatamyData.mdf
Create a NEW project.
Remove any Data Connections. ( no matter what)
Save it.
Data | View Data Sources
Add New Data Source
select NEW CONNECTION ( No Matter what, do it!
Select the database. * again mine was C:mydatamyData.mdf
Answer NO to the question: Would you like to copy the file to your project and modify the connection? - NO ( no matter what - ANSWER NO ! - Absolutely NO ) Then select the tables you want in the DataSet. and Finish.
To Test ----------
From the Solution Explorer | click the table name drop down arrow | select details Now Drag the table name onto the form.
The form is then populated with a Navigation control and matching Labels with corresponding Textboxes for each field in the table.
Save it.
1) Run the app.
Add one database record to the database by pressing the Add(+) icon
Just add some quick junk data that you don't mind getting lost if it doesn't save.
YOU MUST CLICK THE SAVE ICON to save the data you just entered.
Now exit the application.
2) Run the app again.
And verify there is one record already there.
Now add a second database record to the database by pressing the Add (+) icon.
NOW add some quick junk data that you WILL intentionally loose.
*** DO NOT *** press the save icon.
Just Exit the app.
3) Again, Run the app.
Verify that the first record is still there.
Verify that the Second record is NOT there. Its NOT there because you didn't save the data before exiting the app.
Proving that YOU MUST CLICK THE SAVE ICON to save the data you just entered.
Also proving you must add your own code to catch the changes and ask the user to save the data before exitiing or moving to another record.
As a side note, since vb.net uses detached datasets, (a copy/snapshot of the dataset in memory and NOT directly linked to the database) the dataset will reflect all changes made when moving around the detached datasets. YOU MUT REMEMBER TO SUBMIT YOUR CHANGES TO THE DATABASE TO SAVE THEM. Otherwise, they will simply be discarded without notice.
Whewh!
I hope this saves me some time the next time I want to start a new database project.
Oh, and uh, for anyone else reading this post.
Thanks, Barry G. Sumpter
Currently working with: Visual Basic 2005 Express SQL Server 2005 Express
Developing Windows Forms with 101 Samples for Visual Basic 2005 using the DataGridView thru code and every development wizard I can find within vb.net unless otherwise individually stated within a thread.
I am running an script and the following sentence throws and error because the DTC service is not running in the Remote Server:
insert into MyLocalTable execute synonym_MyRemoteProcedure @SomeParameter
Since a transaction is not declared within the script, why is the DTC required? How can I avoid the usage of the DTC? Is there a way to say "this code is not within a distributed transaction"?
I'm trying to performance tune a procedure and am sort of being thwarted by caching.
When I first run the procedure, it takes a few seconds which is too long in this case. Subsequent executions in Management Studio are nearly instantaneous, though, which I imagine is due to caching and does not reflect the behavior of the procedure in production.
Is there a way to disable caching so that each execution of the procedure in Management Studio will be consistent and reflect the "first run" performance?
Using small stored procs or sp_executesql dramatically reduces the number ofrecompiles and increases the reuse of execution plans. This is evident fromboth the usecount in syscacheobjects, perfmon, and profiler. However I'm ata loss to determine what causes a compilation. Under rare circumstances theusecount for Compiled Plan does not increase as statements are run. Seemsto correspond to when there is no execution plan. It would seem to me thatcompilation is a resource intensive task that if possible (data and schemaare not changing) should be held to a minimum.How does one encourage the reuse of compile plans?Is this the same as minimizing compilation?Looks like some of this behavior is changing in SQL 2005....Thanks,Danny
I have a stored procedure spUpdateClient, which takes as params a number of properties of a client application that wants to register its existence with the database. The sp just needs to add a new row or update an existing row with this data.
I tried to accomplish this with code somethign like this. (The table I'm updating is called Client, and its primary key is ClientId, which is a value passed into the sp from the client.)
IF (SELECT COUNT(ClientId) FROM Clients WHERE ClientId=@ClientId) = 0 BEGIN -- client not found, create it INSERT INTO Clients (ClientId, Hostname, Etc) VALUES (@ClientId, @Hostname, @Etc) END
ELSE
BEGIN -- client was found, update it UPDATE Clients SET Hostname=@Hostname, Etc=@Etc WHERE ClientId=@ClientId END But the client apps call this every second or so, so soon enough I started getting primary key violations. It looks like one client would make two calls nearly at the same time, both would get a 0 value on the SELECT line, so both would try to insert a new row with the same ClientId. No good. So then I added
SET TRANSACTION ISOLATION LEVEL SERIALIZABLE BEGIN TRANSACTION at the top, and a COMMIT at the bottom. I thought the first one in would get to run the whole sp, and the next one in would have to wait for the first to be done. Instead I'm now getting deadlock errors. If I understand the docs right, that's because the exclusive lock is not placed on the Clients table until the INSERT happens, not at the SELECT. So when two calls to the sp happen at nearly the same time (call them A and B), A does the SELECT and that locks Clients so nobody else can update it. Then B does the SELECT, locking Clients so nobody else (including A) can update it. Now A needs to exclusively lock Clients to do its INSERT, but B still has that read lock on it, and they're deadlocked. I could catch the deadlock in my client app after SQL Server kills one of the transactions, but it seems to me there should be some way to set a lock at the top of the sp that says "nobody else can enter this sp until I exit it". Any such thing? Thanks. Nate Hekman
Hello. I have been developing a small site that has two backend SQL Server databases. One for my application data and one for the ASPNETDB database that is created by the ASP .NET Configuration utility. Is it possible to configure the ASP .NET Configuration tool to use my custom database instead of creating a second database called ASPNETDB? Thanks in advance. Kev
I am exclusively using Stored Procedures to access the database, i.e. there are no Ad-Hoc SQL statements anywhere in the C# code. However, one thing I need to be able to do is to allow filtering for data grids on my ASP.NET page. I want to do the filtering in the Stored Procedure using Dynamic SQL to set the WHERE clause. However, one fear of mine is SQL injection from the client. How can I avoid arbitrary SQL injection, yet still allow for a dynamic WHERE clause to be passed into the stored procedure?
I currently have an asp script that is generating a 12 month rolling report. From asp I'm running a for loop with 12 iterations, each one sending the following query:
select count(a.aReportDate) as ttl from findings f left outer join audits a on a.aID = f.auditID where f.findingInvalid <> 1 and month(aReportDate) = " & Mo & " and year(aReportDate) = " & Yr
where the Mo and Yr variables are incremented accordingly.
I actually have 4 sets of data being pulled back to populate a graph, so this results in 48 queries with each page load! Obviously not ideal. So I'm hoping to reduce this to 4 queries. I was playing with the following in enterprise manager:
DECLARE @DT DATETIME DECLARE @CNT INT SET @DT = '10/31/07' SET @CNT = 1 WHILE(@CNT < 12) BEGIN select count(a.aReportDate) as ttl from findings f left outer join audits a on a.aID = f.auditID where f.findingInvalid <> 1 and month(aReportDate) = month(@DT) and year(aReportDate) = year(@DT)
SET @CNT = @CNT + 1 END
I haven't yet added any logic to increment the date, but my concern is that it looks like it is returning 12 separate results. Is there any way to combine this all into one resultset that will be passed back to my asp script? Hopefully this makes sense?
Suggestions on a completely different approach would also be welcome.
Hope someone could help me in revising a long running query. Here is the query
select * from table1 where classid is null and productid not in ( select productid from table1 where classid = 67)
In here table1 could have several occurance of productid in which productid could have different classid. The possible values of classid are: NULL,1,2,3,67. Basically I am looking for all records whose classid is null but should never had an instance in table1 where its classid is 67.
Do you have something like a "join" statment that will only include all records in the left table that is not in the right table?
Hope someone could help me with this. Thanks in advance.
I have a table in our system that hold temporary data for doing calculations. It will process several million records in it. each time they forecast our products.....
Is there any way to have the SQL server NOT add these transactions to the transaction log, since I'm going to wipe the data anyway? I'd like to be able to pick and choose the tables that are 'backed up' into the transaction log...
I am trying to figure out an efficient way of comparing two tables of identical structure and primary keys only I want to do a join where one of the tables reveals values for records which have been modified and/or updated.
To illustrate, I have two tables in the generic form:
id-dt-val
For which the 'val' in table 2 could be different from the 'val' in table 1 - for a given id-dt coupling that are identical in both tables.
Does anyone know of an efficient way I could return all id-dt couplings in table 2 which have values that are different from those with the same id-dt couplings in table 1?
NOTE: I am asking this because I am trying to avoid explicit comparisons between the 'val' columns. The tables I am working with in actuality have roughly 900 or so columns, so I don't want this kind of a monster query to do (otherwise, I would simply do something like where a.id = b.id and a.dt = b.dt and a.val <> b.val) - but this won't do in this case.
As a sample query, I have the following script below. When I attempt the where not exists, as you might expect, I only get the one record in which the id-dt coupling is different from those in table 1, but I'm not sure how to return the other records where the id-dt coupling is the same in table 1 but for where modified values exist:
create table #tab1 ( id varchar(3), dt datetime, val float ) go
create table #tab2 ( id varchar(3), dt datetime, val float ) go
insert into #tab1 values ('ABC','01/31/1990',5.436) go insert into #tab1 values ('DEF','01/31/1990',4.427) go insert into #tab1 values ('GHI','01/31/1990',7.724) go
insert into #tab2 values ('XYZ','01/31/1990',3.333) go insert into #tab2 values ('DEF','01/31/1990',11.111) go insert into #tab2 values ('GHI','01/31/1990',12.112) go
select a.* from #tab2 a --Trouble is, this only returns the XYZ record where not exists (select b.* from #tab1 b where a.id = b.id and a.dt = b.dt) go
drop table #tab1 drop table #tab2 go
I really dont' want to have to code up a loop to do the value by value comparison for inequality, so if anyone knows of an efficient set-based way of doing this, I would really appreciate it.
The C++ application calls the database to look up property data. Onetroublesome query is a function that returns a table, finding data whichis assembled from four or five tables through a view that has a join,and then updating the resulting @table from some other tables. Thereare several queries inside the function, which are selected accordingto which parameters are supplied (house #, street, zip, or perhaps parcelnumber, or house #, street, town, city,...etc.). If a lot of parametersare provided, and the property is not in the database, then several queriesmay be attempted -- it keeps going until it runs out of queries or findssomething. Usually it takes ~1-2 sec for a hit, but maybe a minute insome failure cases, depending on the distribution of data. (~100 milproperties in the DB) Some queires operate on the assumption the input datais slightly faulty, and take relatively a long time, e.g., if WHEREZIP=@Zip fails, we try WHERE ZIP LIKE substring(@Zip,1,3)+'%'. Whileall this is going on the application may decide the DB is never going toreturn, and time out; it also seems more likely to throw an exception thelonger it has to wait. Is there a way to cause the DB function to fail ifit takes more than a certain amount of time? I could also recast it asa procedure, and check the time consumed after every query, and abandonthe search if a certain amount of time has elapsed.Thanks in advance,Jim Geissman
I have a Master/Detail table setup - let's call the master "Account" and the detail "Amount". I also have a "black box" stored procedure (BlackBox_sp) which carries out a lot of complex processing.
What I need to do is, for each Account, I need to iterate thtough it's Amount records and call the black box each time. Once I've finished going through all the Amount records, I need to call the black box again once for the Account. This must be done with the Account & Amount rows in a specific order.
So I have something along the lines of
Code Block
DECLARE Total int
DECLARE Account_cur OPEN Account_cur FETCH NEXT FROM Account_cur WHILE FETCH_STATUS = 0 BEGIN
SET Total = 0
DECLARE Amount_cur OPEN Amount_cur FETCH NEXT FROM Amount_cur WHILE FETCH_STATUS = 0 BEGIN
SET Total = Total + Amount
EXEC BlackBox_sp (Amount) END CLOSE Amount_cur
EXEC BlackBox_sp (Total)
END CLOSE Account_cur
Any tips on another approach would be appreciated given the contraints I have.
I have web site when people orders through website at same time, a problem can be arrive when allocating next primary key value to new record, using maximum number of records +1 how to avoid this problem and insert to sql server please give me your ideas
Hi there, I'm using a query to fetch data from a table where one of the criteria is IN(...) clause for the key column of the table.Now the data being retrieved is ordered by the key column of the table even though I haven't specified any order by clause. I want to know if there a way in which the data being fetched is in the order of my IN(...) clause.
