With this T-SQL query I define a variable #InDate with some date.
SET
#InDate = (SELECT MIN(bt.CreateDate) AS [INDATE]
FROM
mydatabase.dbo.BuyTransaction bt
LEFT JOIN
mydatabase.dbo.TransactionExtraFields tef ON bt.TransDocument = tef.TransDocument
AND bt.TransSerial = tef.TransSerial
AND bt.TransDocNumber = tef.TransDocNumber
AND ExtraFieldID = 1
WHERE
bt.TransDocument = 'FRM' AND tef.TextAnswer = #NumPI
AND bt.TransStatus = 0)
But now I need to change the Database name by another variable. I try something like that to make a string in a variable which will be executed
SET #InDate = '(SELECT MIN(bt.CreateDate) AS [INDATE]
FROM mydatabase.dbo.BuyTransaction bt
LEFT JOIN mydatabase.dbo.TransactionExtraFields tef ON bt.TransDocument = tef.TransDocument AND bt.TransSerial = tef.TransSerial AND bt.TransDocNumber = tef.TransDocNumber AND ExtraFieldID = 1
WHERE bt.TransDocument = ''FRM'' AND tef.TextAnswer = '''+#NumPI+''' AND bt.TransStatus = 0)'
EXECUTE #InDate
But my problem is how can I get the execute result into a variable again. Something like SET #InDate2 = EXECUTE #InDate is not working...
Any idea?
Use sp_executesql. I think the syntax in your case is something like:
declare #InDate date;
declare #sql nvarchar(max);
set #sql = N'SELECT #InDate = MIN(bt.CreateDate)
FROM mydatabase.dbo.BuyTransaction bt
LEFT JOIN mydatabase.dbo.TransactionExtraFields tef ON bt.TransDocument = tef.TransDocument AND bt.TransSerial = tef.TransSerial AND bt.TransDocNumber = tef.TransDocNumber AND ExtraFieldID = 1
WHERE bt.TransDocument = ''FRM'' AND tef.TextAnswer = '''+#NumPI+''' AND bt.TransStatus = 0';
exec sp_executesql #sql, N'#InDate date output', #InDate = #InDate output;
You can also make #NumPI a parameter as well.
The documentation for sp_executesql is here.
I have done this type of issue.
Please check the sample code. Its working for me. Please change according.
DECLARE #SQLString NVARCHAR(500)
DECLARE #ParmDefinition NVARCHAR(500)
DECLARE #IntVariable INT
DECLARE #Lastlname varchar(30) = 'col10 ' -- this variable use for input in sp
SET #SQLString = N'SELECT #LastlnameOUT = '+#Lastlname+'
FROM TempStoreExcelData '
SET #ParmDefinition = N'#level tinyint,
#LastlnameOUT varchar(30) OUTPUT'
SET #IntVariable = 35
EXECUTE sp_executesql
#SQLString,
#ParmDefinition,
#level = #IntVariable,
#LastlnameOUT=#Lastlname OUTPUT
SELECT #output = #Lastlname
select #output
Related
I have 4 stored procedures.
The following is used to be invoked by C#:
ALTER PROCEDURE [dbo].[sp_retrieveResourceShell]
AS
BEGIN
SET NOCOUNT ON
DECLARE #result NVARCHAR(MAX)
EXEC [dbo].[sp_retrieveResTree]
#pid = NULL,
#ret = #result OUTPUT
***select*** #result
END
These are internal stored procedures:
ALTER PROCEDURE [dbo].[sp_retrieveResTree]
(#pid UNIQUEIDENTIFIER,
#ret NVARCHAR(MAX) OUTPUT)
AS
BEGIN
DECLARE #mdlId UNIQUEIDENTIFIER,
#mdlGroup NVARCHAR(MAX)
DECLARE mdlCursor CURSOR FOR
......
DECLARE #subRet NVARCHAR(MAX),
#viewRet NVARCHAR(MAX)
EXEC [dbo].[sp_retrieveResTree]
#pid = #mdlId,
#ret = #subRet OUTPUT
EXEC dbo.sp_retrieveResView
#mdlId = #mdlId,
#ret = #viewRet OUTPUT
SET #mdlGroup = #mdlGroup + FORMATMESSAGE('{"Id":"%s","Name":"%s","Subs":%s,"Views":%s},'...)
.......
SET #ret = FORMATMESSAGE('[%s]',#mdlGroup)
END
ALTER PROCEDURE [dbo].[sp_retrieveResView]
(#mdlId UNIQUEIDENTIFIER,
#ret NVARCHAR(MAX) OUTPUT)
AS
BEGIN
SET #ret = FORMATMESSAGE('[%s]',#viewGroup)
END
When I invoke sp_retrieveResourceShell like this:
DECLARE #return_value int
EXEC #return_value = [dbo].[sp_retrieveResourceShell]
SELECT 'Return Value' = #return_value
I can get a truncated string with ellipsis at the string tail.
how to get the full string without ellipsis?
update
Changed formatmessage function to string concatenation likes
SET #mdlGroup = #mdlGroup + '{"Id":"' + CAST(#mdlId AS CHAR(36))+ '","Name":"' + #mdlName + '","Subs":' + #subRet + ',"Views":' + #viewRet +'},'
when using string concatenation , likes
SET #ret = N'[' + #mdlGroup + N']'
and refernce to [n]varchar(max) + [n]varchar(max)
i got the right full string . Thanks to #MartinSmith at the same time .
I am trying to use Dynamic SQL when setting a value to a variable, but it doesn't work. However, the same statement does work in regular SQL. This is the code:
DECLARE #sqlcmd nchar(1024);
DECLARE #DBName nchar(30) = 'DB_1016a'
DECLARE #UserKey int = 0;
DECLARE #UserID nchar(30) = 'DBCLIENT\StudentA'
set #sqlcmd = 'set #UserKey = (SELECT [Key] from ' + rtrim(ltrim(#DBName)) + '.dbo.userlist where ID = ''' + rtrim(ltrim(#UserID)) + ''')'
print(#sqlcmd)
exec(#sqlcmd)
print('stuff1')
print('['+rtrim(ltrim(cast(#UserKey as nchar(4))))+']')
print('stuff2')
And this is what it returns:
set #UserKey = (SELECT [Key] from DB_1016a.dbo.userlist where ID = 'DBCLIENT\StudentA')
*Msg 137, Level 15, State 1, Line 30
Must declare the scalar variable "#UserKey".*
stuff1
[0]
stuff2
What am I doing wrong?
You need to bind an output parameter in the dynamic SQL batch and assign your local variable to the parameter. Like this:
DECLARE #sqlcmd nchar(1024);
DECLARE #DBName nchar(30) = 'DB_1016a'
DECLARE #UserKey int;
DECLARE #UserID nchar(30) = 'DBCLIENT\StudentA'
set #sqlcmd = 'set #UserKey = (SELECT [Key] from ' + rtrim(ltrim(#DBName)) + '.dbo.userlist where ID = ''' + rtrim(ltrim(#UserID)) + ''')'
print(#sqlcmd)
exec sp_executesql #sqlcmd, N'#UserKey int out', #UserKey = #UserKey output
print('stuff1')
print('['+rtrim(ltrim(cast(#UserKey as nchar(4))))+']')
print('stuff2')
You're dealing with a scope issue. The statement contained in #sqlcmd is in a different execution scope than that where you declare #UserKey when you run it with exec.
I need to get a query from a database table that contains a parameter. Then use that query to update another table but I need to be able to pass another parameter to that update statement.
declare #locnum int
set #locnum = 032
declare #tempPersonID int
set #tempPersonID = 10008
declare #passwordQuery varchar(max)
set #passwordQuery = (select passwordQuery from location where locationNum = #locnum)
select #passwordQuery
update tempPerson
set [password] = #passwordQuery
where tempPersonID = #tempPersonID
select *
from tempPerson
select #passwordQuery returns (select left(firstname,1) + left(lastname,1) + custom as [password] from tempPerson where tempPersonID = #tempPersonID). I need to able to use the #tempPersomID parameter in this query and the where statement.
Firstly, as you are updating the record that you are selecting the information from you only need the following as your #passwordQuery:
left(firstname,1) + left(lastname,1) + [custom]
Then the following code takes your code and adapts it for dynamic SQL:
declare #locnum int = 032, #tempPersonID int = 10008, #passwordQuery varchar(max), #sql nvarchar(max), #params nvarchar(max);
select #passwordQuery = passwordQuery from [location] where locationNum = #locnum;
-- select #passwordQuery
set #sql = 'update tempPerson set [password] = ' + #passwordQuery
+ ' where tempPersonID = #tempPersonID';
set #params = '#tempPersonID int';
execute sp_executesql #sql, #params, #tempPersonID = #tempPersonID;
select *
from tempPerson
You Can Execute Dynamic SQL Statements with parameter using either the EXEC or sp_ExecuteSQL Statements.
In your Case, The sp_ExecuteSQLseems more suitable. The Syntax for the same is as below
sp_executesql [ #stmt = ] statement
[
{ , [ #params = ] N'#parameter_name data_type [ OUT | OUTPUT ][ ,...n ]' }
{ , [ #param1 = ] 'value1' [ ,...n ] }
]
So Your Entire Script can be re-written as below :
DECLARE #locnum INT
#tempPersonID INT,
#passwordQuery VARCHAR(MAX),
#params VARCHAR(500),
#ParamOut VARCHAR(500)
SELECT
#locnum = 032,
#tempPersonID = 10008,
#params = N'#tempPersonID INT,#MyPwd VARCHAR(500) OUTPUT'
SELECT
#passwordQuery = 'SET #MyPwd = ('+passwordQuery+')'
FROM Location
WHERE LocationNum = #locnum
sp_ExecuteSQL(#passwordQuery,#params,#tempPersonID,#MyPwd = #ParamOut OUTPUT )
UPDATE tempPerson
SET
[password] = #ParamOut
WHERE tempPersonID = #tempPersonID
select *
from tempPerson
I create this query, This will work fine On SQL Server
When am using this query in inside sp_execute_external_script using R Script
I won't able to pass '+#TableName+' please check and Suggest some Solution
// This code Work fine in SQL
Declare #TableName nvarchar(max)
Declare #Plant nvarchar(max) ='XXX'
Declare #Tub nvarchar(max) ='YYY'
Set #TableNameByModelName = 'Ref_curve' -- Need This from UI
exec (N'SELECT
p.[Plant]
,P.[Tub]
,r.[Power]
FROM [dbo].[Analysis_Curve] as P
INNER join [P_Analysis].dbo.'+#TableName+' AS r on r.Speed = P.Speed
where P.Plant= '''+#Plant+'''
AND P.Tub = '''+#Tub+'''')
// This code is Using R script Need Suggestion here
Alter procedure [dbo].[Pass_Dynamic_TableName]
( #Plant1 nvarchar(50),
#Tub1 nvarchar(50)
)
As
Begin
Declare #TableName NVARCHAR(200);
Set #TableName = 'Ref_curve'
EXEC sp_execute_external_script
#language =N'R',
#script=N'df <- as.data.frame(InputDataSet);
OutputDataSet <-df'
,#input_data_1 =N'SELECT
p.[Plant]
,P.[Tub]
,r.[Power]
FROM [dbo].[Analysis_Curve] as P
INNER join [P_Analysis].dbo.#TableName AS r on r.Speed = P.Speed
where P.Plant= #Plant22
AND P.Tub = #Tub22'
,#params = N'#Plant22 varchar(50) OUTPUT, #Tub22 varchar(50) OUTPUT'
,#Plant22 = #Plant1
,#Tub22 =#Tub1
WITH RESULT SETS Undefined;
END
Could you try this.
Alter procedure [dbo].[Pass_Dynamic_TableName]
( #Plant1 nvarchar(50),
#Tub1 nvarchar(50)
)
As
Begin
Declare #TableName NVARCHAR(200);
Set #TableName = 'Ref_curve'
DECLARE #input_script NVARCHAR(MAX) =N'SELECT
p.[Plant]
,P.[Tub]
,r.[Power]
FROM [dbo].[Analysis_Curve] as P
INNER join [P_Analysis].dbo.' + QUOTENAME(#TableName) + ' AS r on r.Speed = P.Speed
where P.Plant= #Plant22
AND P.Tub = #Tub22'
EXEC sp_execute_external_script
#language =N'R',
#script=N'df <- as.data.frame(InputDataSet);
OutputDataSet <-df'
,#input_data_1 = #input_script
,#params = N'#Plant22 varchar(50), #Tub22 varchar(50) '
,#Plant22 = #Plant1
,#Tub22 =#Tub1
WITH RESULT SETS Undefined;
END
I know this question has been asked, and I already found some solutions in internet.. but I still can not make it work properly.
So.. I have to make a SELECT query and store the result in a variable (I DONT want a table variable).
My problem is that the name of the table is also a variable. The table name changes accordingly to a WHILE, here is my code:
DECLARE #numRecord INT;
DECLARE #maxMacNumber INT;
SET #maxMacNumber = 500;
DECLARE #mac INT;
SET #mac = 0;
DECLARE #res FLOAT;
DECLARE #ap INT;
SET #ap = 0;
DECLARE #apString VARCHAR(2);
DECLARE #numRecordString VARCHAR(20);
DECLARE #tablename VARCHAR(500);
DECLARE #sql NVARCHAR(500);
DECLARE #varDefinition NVARCHAR(200);
WHILE #mac <= #maxMacNumber
BEGIN
SET #numRecord = 6 + #mac * 390;
SET #ap = 0;
WHILE #ap < 2
BEGIN
SELECT #apString = CONVERT(VARCHAR,#ap);
SELECT #numRecordString = CONVERT(VARCHAR, #numRecord);
SELECT #rssiString = CONVERT(VARCHAR, #rssi);
SET #tablename = 'APDB.dbo.AP' + #apString;
SET #sql = 'SELECT RSSI FROM ' + #tablename + ' WHERE ID=' + #numRecordString;
SET #varDefinition = N'#res FLOAT OUTPUT';
EXEC sp_executesql #sql, #varDefinition, #res = #res OUTPUT;
PRINT #res;
-- HERE I WILL DO SOMETHING WITH #res
END;
END;
The problem is that it doesn't print anything when I do PRINT #res...
This is the relevant SQL code:
SET #sql = 'SELECT RSSI FROM ' + #tablename + ' WHERE ID=' + #numRecordString;
SET #varDefinition = N'#res FLOAT OUTPUT';
EXEC sp_executesql #sql, #varDefinition, #res = #res OUTPUT;
PRINT #res;
You are never setting #res in the SQL. Try this:
SET #sql = 'SELECT #res = RSSI FROM ' + #tablename + ' WHERE ID=' + #numRecordString;
SET #varDefinition = N'#res FLOAT OUTPUT';
EXEC sp_executesql #sql, #varDefinition, #res = #res OUTPUT;
PRINT #res;