I have a dynamic query which returns me a result and I want to capture that value to make further use of it in the same code. Is that possible??
exec ('select col_nm from table_name'). i want the result of this query to be captured.
DP
Hi:
Is there a way to assign a dynamic query result to a local variable?
declre @sqlString nvarchar(4000),
@minEventDate datetime,
@databaseName varchar(25)
selct @databaseName = 'customer_12345'
(actually, a cursor loop will assign the database name dynamically, here just to simplify the situation)
select @sqlString =
'select ' + @minEventDate + '= (select min(eventDate) from ' + @databaseName + '.dbo.tblABC)'
exec sql_executesql @sqlString
print '@minEventDate: ' + cast(@minEventDate as varchar(19))
Though the select min(eventDate) from customer_12345.dbo.tblABC
returns a date, ex. '02/01/2004 12:35 pm', however, the printed @minEventDate is always with Null value. It mean, the value was never correctly assigned to the local variable.
As an alternate way, I am using temp table to insert it with the query result and then assign to the local variable. Since I have many local variables to try to get the min, max, count for around 10 fields, perfer a way to direct assign to the local variable instead of 10 temp tables.
thanks
-D
Hi All,
I need to store the row count from two different servers (one 6.5 and one 7.0)
to compare by doing this:(in T-SQL)
declare @kount1 int, @kount2 int
exec master..xp_cmdshell 'isql -Sserver65 -d dbA -T -Q "select count(*) from tableA",no_output
exec master..xp_cmdshell 'isql -Sserver70 -d dbA -T -Q "select count(*) from tableA",no_output
How can I save the rowcount in @kount1, @kount2 respectively for comparison?
Appreciate your feedback.
David Nguyen
Is this possible as given below
declare @Qry as varchar(8000)
declare @Cnt as int
begin
set @Qry = 'select @Cnt=count(*) from ' + @TableName
exec @Qry
select @Cnt
end
But its not working....
can any one help me out in this.....
Thnx
Parag
Hi all.
I am stuck in a bit of a conundrum for quite a while now, and I hope someone here will help me figure this one out.
So, first things first: let me explain what I need to do. I am
designing a web application that will allow users to consult info
available in a SQL2000 database. The user will enter the search
criterea, and hopefully the web page will show matching results.
The problem is the results shown aren't available per se in the DB, I
need to process the data a bit. I decided to do so on the SQL Server
side, though the use of cursors. So, when a user defines his search
criteria, I run a stored procedure that begins by building a dynamic
sql query and creating a cursor for it. I used a global cursor in order
to do so. It looked something like this:
SET @sqlQuery = ... (build the dinamic sql query)
SET @cursorQuery = 'DECLARE myCursor CURSOR GLOBAL FAST_FORWARD FOR ' + @sqlQuery
EXEC @cursorQuery
OPEN myCursor
FETCH NEXT FROM myCursor INTO ...
CLOSE myCursor
DEALLOCATE myCursor
This works fine, if there's only one instance of the
stored procedure running at a time. Should another user connect to the
site and run a search while someone's at it, it'll fail due to the
atempt to create a cursor with the same name.
My first thought was to make the cursor name unique, which led me to:
...
SET @cursorName = 'myCursor' + @uniqueUserID
SET @cursorQuery = 'DECLARE '+ @cursorName + 'CURSOR FAST_FORWARD FOR ' + @sqlQuery
EXEC @cursorQuery
...
The problem with this is that I can't do a FETCH NEXT FROM @cursorName since
@cursorName is a char variable holding the cursor name, and not a
cursor variable. So to enforce this unique name method the only option
I have is to keep creating dynamic sql queries and exucting them. And
this makes the sp a bitch to develop and maintain, and I'm guessing it
doesn't make it very performant.
So I moved on to my second idea: local cursor variables. The problem with
this is that if I create a local cursor variable by executing a dynamic
query, I can't extract it from the EXEC (or sp_executesql) context, as
it offers no output variable.
I guess my concrete questions are:
Is it possible to execute a dynamic sql query and extract a (cursor) variable from it?Is it possible to populate a local cursor variable with a global cursor, by providing the global cursor's name?Can I create a local cursor variable for a dynamic sql query? How?
Anybody sees another way arround this?Thanks in advance,
Carlos
Hello all:
Here is a sample query:
DECLARE @KEYID NVARCHAR (50) ; SET @KEYID = '1074958'
DECLARE @ENTITY NVARCHAR (100); SET @ENTITY = 'HouseDimension'
DECLARE @KeyCol NVARCHAR(50);
SET @KeyCol = (SELECT LEFT(@ENTITY, (SELECT CHARINDEX( 'DIM', @ENTITY) -1)) )+ 'Key'
DECLARE @KeyValue NVARCHAR (1000)
SET @KeyValue = 'SELECT '+ @KeyCol + ' FROM HouseManagementFact WHERE HouseKey = ' + @KEYID +
' GROUP BY ' + @KeyCol + ' HAVING SUM(TotalClaimCount) > 0 OR SUM(HouseCount) > 0 '
The value resulting from Executing @KeyValue is an integer.
I want to store this value in a new variable say @VAR2
When I do this
DECLARE @VAR2 INT
SET @VAR2 = execute sp_executesql @KeyValue
its giving me an error.
can somebody let me know the correct form of storing the value resulting from @KeyValue in some variable ?
Hi,
Can I take the [index] result from a table and store it in a local var?
For example a table
declare @keyWords(
word varchar(40),
wordLen smallint
)
word len
---- ---
test 4
t 1
e 1
declare @index smallInt = 2
SET @keyWord = SELECT TOP @INDEX word FROM @KeyWords
This obviously is not correct for several reasons (TOP returns multiple results, TOP doesn't work with local var etc)
Help - I am having a moment!
I am building a simple package that looks at the results of a sql query, prior to running the next step.
Basically Outline and settings
SQL task
Result Set: Full result set
SQL Source: Direct Input
SQL Statement: Select Count (*) FROM X
Parameter Mapping
Variable Name: User::C
Direction: Return Value
Data Type: Numeric
Parameter Name: NewParameterName
Result Set = NewResultName: User::C
Precedence Constraint
Evaluation Operation: Expression and Constraint
Value: Success
Expression: @C > 0 ( I originally tried User::C and received an error message)
Execute SQL Server Agent Job
If step one results greater than 1, then execute the SQL agent job (SRS Report)
Using this setup I receive an error message stating "
TITLE: Package Validation Error
------------------------------
Package Validation Error
------------------------------
ADDITIONAL INFORMATION:
Error at Package: The expression "@C > 0" must evaluate to True or False. Change the expression to evaluate to a Boolean value.
Error at Package: There was an error in the precedence constraint between "Execute SQL Task" and "Execute SQL Server Agent Job Task".
(Microsoft.DataTransformationServices.VsIntegration)
Any thought or suggestions would be greatly appreciated.
r/ Anthony
I wrote a stored procedure that finds a number. I want to store the number it finds into a variable so i can use it within another procedure.
I hope i'm being clear.
Any help will be appreciated.
Here is an example of how i am finding my number
Employee is the name of my table and Number is the name of my column.
SELECT Max(Number)
FROM Employee
Not wishing to derail the other recent thread on loading a local variable, I've posted this query (hee,hee,hee...I kill me) on a separate thread...though I think I am trying to do something similar...that is to build a dynamic select statement, but return a count of the rows it finds/doesn't find to a local variable...using the (amazingly timely) responses above, I tried this:
Note that the local variables @TargetDate and @TLevel are necessary because they are being passed into the procedure as variables....
DECLARE @SQLCmd varchar(256)
DECLARE @TargetDate smalldatetime
DECLARE @TLevel int
DECLARE @n int
SET @TargetDate = '2004-05-24'
SET @TLevel = 1
SET @SQLCmd = 'SELECT @n = count(*) FROM EventLog WHERE ((CONVERT(varchar(10), [Date], 101) = ''' +
CONVERT(varchar(10), @TargetDate, 101) + ''') AND (MsgLevel = ' +
CONVERT(varchar(3), @TLevel) + '))'
exec (@SQLCmd)
if @n > 0
print 'yep'
else print 'nope'
and, it's TRYING to work...but apparently the local variable @n is not recognized in the execution of the dynamic statement, as this is the output:
Server: Msg 137, Level 15, State 1, Line 1
Must declare the variable '@n'.
nope
Thoughts?
I'm sure this is a very simple piece of code, but I'm having trouble understanding how to do this.
First I have a database with three columns
ContactID
name age weightaaa 23 50bbb 23 60ccc 22 70ddd 24 20 eee 22 30i need the output that calculate the sum of weight group by name input : age limit ex: 22 - 23 output : age total weight 23 11022 100 this output must stored in a sql declared variable for some other further process .
View 7 Replies View RelatedI have a stored procedure that returns XML using FOR XML Explicit. I need to use the output of this procedure in another procedure, and modify the xml output before it is saved somewhere.
Say StoredProc1 is the one returning xml output and StoredProc2 needs to consume the output of StoredProc1
I declared a nvarchar(max) variable and trying to saved the result of StoredProc1
Declare @xml nvarchar(max)
EXEC @xml = StoredProc1 @Id
This doesn't work as expected as @xml doesn't get any value assigned or rather I would say
EXEC @xml = StoredProc1 @Id
outputs the entire xml whereas it should just save the xml in a variable.
I cannot find the data type for parameter mapping from Execute SQL Task Editor to make this works.
1. Execute SQL Task 1 - select max(columnA) from tableA. ColumnA is varbinary(8); set result to variable which data type is Object.
2. Execute SQL Task 2 - update tableB set columnB = ?
What data type should I use to map the parameter? I tried different data types, none working except GUI but it returned wrong result.
Does SSIS variable support varbinary data type? I know there's a bug issue with bigint data type and there's a work-around. Is it same situation with varbinary?
Thanks,
-Ash
One column in my table stores SQL queries(QueryCoulmn). Another coulmn supposed to store the result of those queries(ResultColumn). Can I run an update query or how can I do that? I could not figure out the syntax.
update tablename
set ResultColumn=exec(QueryCoulmn)
thanks
Hi,
I'm wondering is it possible to store query result to column directly?
for example I have 2 tables
Cache
----------
Cache_ID (int)
Cache_content (Text)
cache_created (Datetime)
Orders
-------------
Order_ID
Order_amount
Order_Date
Order_Delivered
and the query is
select * from order where order_date = '2007-11-23' and 'Order_delivered='N'
I want the result to be stored in cache table either csv or xml
I'm using sql 2000 server.
any idea?
Hi,
I'm trying to put the results from a SQL query that returns only one filed but one or more rows into a local variable in a comma separated format.
Any help is appreciated.
Thanks.
Hello Again, did you miss me?
ok now i have this problem. I need to make a query that return one single data. I need to store this data in a variable. Something like that:
DECLARE @A VARCHAR(50)
@A=SELECT mycolumn FROM mytable WHERE mycolumn = 'Something'
There is a form to do it?
Thanks Friends
im running a dynamic query with open rowset in it
pseudocode:
@CMD=declare @ RETURN SELECT @RETURN =SUM(X) FROM OPENROWSET(....) SELECT @RETURN
EXEC @CMD
This pseudocode dipplay the result of @return
the problem:
capture @return into @myvalue outside the dynamic sql scope
something like
Select @myvalue=exec(@cmd)
I don't wanna run on ditributed transaction like this
insert mytable
exec(@cmd)
thanks,
joey
We have some reports run quite slow because the queries are complicate and tables are large. So we create a materialized view in Oracle which store the result from the query and refresh it occationally. How to do this in MSSQL? I try the indexed view but seems it has lots of restrictions, our query has sub queries and cross database table joins so can't use the indexed view. Any other object or temp table can be used to cache the report data and be accessed globally by other procedures?
Any suggestions are welcome,
Cheers
Hi!
Here is a snap form my code
declare @max_id int
declare @the_db varchar (30)
select @the_db = 'mydb'
exec ("select """ @max_id """ = max(id) from " + @the_db + "..mytable")
I got syntex error for the @max_id. The script is writen based on the sample given in MSSQL6.5 Book Online, chapter "Transaction-SQL Reference 6.0" section "C"->"Control-Flow Lang."->"Control-Flow Examples"
Can someone help me on how to assign a value to a local variable from a dynamic query.
Thank for any help in advance
Hank Lee
/*Given*/CREATE TABLE [_T1sub] ([PK] [int] IDENTITY (1, 1) NOT NULL ,[FK] [int] NULL ,[St] [char] (2) NULL ,[Wt] [int] NULL ,CONSTRAINT [PK__T1sub] PRIMARY KEY CLUSTERED([PK]) ON [PRIMARY]) ON [PRIMARY]GOINSERT INTO _T1sub (FK,St,Wt) VALUES (1,'id',10)INSERT INTO _T1sub (FK,St,Wt) VALUES (2,'nv',20)INSERT INTO _T1sub (FK,St,Wt) VALUES (3,'wa',30)/*Is something like the following possible.The point is to change the value of the variableinside the query and use it in the calculated field.This doesn't compile of course, but is therea way to accomplish the same thing?*/DECLARE @ndx intSET @ndx = 1SELECT(a.FK+ (CASE WHEN @ndx > 0THEN (SELECT @ndx = b.WtFROM _T1sub bWHERE b.Wt = a.Wt)ELSE 0 END)) as FKplusWTFROM _T1sub a/*Output would look like this:*/FKplusWT-----------112233/*I know, I can get this output just by addingFK+WT. This is not about that.This is about setting vars inside a query*/thanks, Otto Porter
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Hi,
I am using a local variable to capture datetime and then select records from another table by making use of the above local variable result. But the query is running too slow when I use the local variable
declare @a smalldatetime
select @a=last_run_time from job_status
where job_des='sample'
SELECT * FROM History
WHERE CHANGE_DATE> @a
Instead of the above select statement if I use the below statement it is returning results quickly. Can someone help me in tuning the above query.
SELECT * FROM History
WHERE CHANGE_DATE> '5/23/2008 6:22:00.000 AM '
History table has columns ( case number, change_date, change_desc). I have two indexes defined on the above table one is on case_number and the other on change_date.I tried using force index but still the query is running slow.
will there be any difference if use dynamic sql ?
Hello,
I am interested in what the simplest was to get a query result that will only ever have one result (ie One column, one row) into a variable. An ugly way is to use a cursor that simply fetches the first row but that seems to be a horrible way to do it and it has sometimes major drawbacks sometimes (mainly if I have to dynamically choose the table). Surely there is a better way?
What do you think? A simple example would be nice.
Cheers
J
Can anyone tell me or point me in the direction of how I can store select query results to a variable in VB.NET? Im using the SqlDataSource control with dropdowns and textboxes for searching. I want to store the search results in a variable on the button click event.
View 2 Replies View RelatedThe following query is failing when trying to apply the
MAX(field_x_order)
to the variable @max
Note the x is represented by the string variable @stri
declare @i int
declare @stri varchar(10)
declare @max int
set @i = 18
set @max = 0
while @i < 49
begin
set @i = @i + 1
set @stri = cast(@i as varchar(10))
select @max = MAX(field_ + @stri + _ORDER) FROM table_name WHERE field_ + @stri + IS NOT NULL -- error: Incorrect syntax near the keyword 'IS'.
exec ('UPDATE display_1a SET field_' + @stri + '_order = field_' + @stri + '_order ' + @max + 'WHERE field_' + @stri + ' IS NULL')
end
I have also tried:
select MAX(field_ + @stri + _ORDER) INTO @max = FROM display_1a WHERE field_ + @stri + IS NOT NULL -- error: Incorrect syntax near '@max'.
and:
select @max = ('SELECT MAX(field_' + @stri + '_ORDER) FROM display_1a WHERE field_' + @stri + ' IS NOT NULL') -- error: Conversion failed when converting the varchar value 'SELECT MAX(field_19_ORDER) FROM display_1a WHERE field_19 IS NOT NULL' to data type int.
Thanks,
Lou
Lou
Hi!
Is it possible to set a query result (scalar) to scalar variable. I would like to set a qery result (SELECT COUNT(*) FROM MyTable) to a scalar variable:
DECLARE @temp int
SET @temp = query result...
Is it possible? I couldn't find the way to do that...
Hi.
I am trying to store the column value to a variable from a distributed query.
The query is formed on the fly.
i need to accomplish something like this
declare @id int
declare @columnval varchar(50)
declare @query varchar(1024)
@Query = "select @columnval = Name from server.database.dbo.table where id ="+convert(varchar,@ID)
exec (@query)
print @Columnname
-MAK
Is there a way to write such a query where we can declare the variable dynamically ? Currently I am using the query as shown below :
declare @pYear_Internal as NVarchar(100)
set @pYear_Internal = [D FISCALPERIOD].[FP CODE].[FP CODE]
WITH
MEMBER MEASURES.[REVENUE] AS [Measures].[TOTAL REVENUE]
SET LAST5YEARS AS STRTOMEMBER(@pYear_Internal).Lag(4) : STRTOMEMBER(@pYear_Internal)
[code]....
While executing the above query, getting the error - Query (1, 9) Parser: The syntax for '@pYear_Internal' is incorrect. It looks like it doesn't recognize DECLARE keyword as it does with SQL queries. I just want a query that runs directly against the server.
I have started working with dynamic queries recently. I am using a table variable and need to add a join in query dynamically.
For Eg- @TableVariable
SET @query_from = @query_from + CHAR(10) + ' JOIN @TableVariable on ABC.ID = @TableVariable.ID '
BUt it gives an error that @TableVariable must be declared
I need to send the result of a procedure to an update statement.Basically updating the column of one table with the result of aquery in a stored procedure. It only returns one value, if it didnt Icould see why it would not work, but it only returns a count.Lets say I have a sproc like so:create proc sp_countclients@datecreated datetimeasset nocount onselect count(clientid) as countfrom clientstablewhere datecreated > @datecreatedThen, I want to update another table with that value:Declare @dc datetimeset @dc = '2003-09-30'update anothertableset ClientCount = (exec sp_countclients @dc) -- this line errorswhere id_ = @@identityOR, I could try this, but still gives me error:declare @c intset @c = exec sp_countclients @dcWhat should I do?Thanks in advance!Greg
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I have an Execute SQL Task that executes "select count(*) as Row_Count from xyztable" from an Oracle Server. I'm trying to assign the result to a variable. However when I try to execute I get an error:
[Execute SQL Task] Error: An error occurred while assigning a value to variable "RowCount": "Unsupported data type on result set binding Row_Count.".
Which data type should I use for the variable, RowCount? I've tried Int16, Int32, Int64.
Thanks!
Hi
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