SQL Server Linked Server INSERT INTO - sql

I have problem with linked server at store procedure, I want to get data from linked server then insert into table.
This is my stored procedure:
CREATE PROCEDURE [dbo].[SP_GETPRODRECORD]
#PR_NO varchar(10)=''
AS
BEGIN
DECLARE #OPENQUERY nvarchar(4000),
#TSQL nvarchar(4000),
#LinkedServer nvarchar(4000)
CREATE TABLE AAA (PR varchar(10))
SET #LinkedServer = 'LS'
SET #OPENQUERY = 'INSERT INTO AAA SELECT * FROM OPENQUERY('+ #LinkedServer + ','''
SET #TSQL = 'SELECT PSHN9G FROM F9G00 WHERE PSHN9G='''''+#PR_NO+''''')'
EXEC (#OPENQUERY+#TSQL)
END
My problem is that the EXEC is not running, when I try to insert manually with code below is working
INSERT INTO AAA(PR)
SELECT PSHN9G
FROM OPENQUERY(WAVEDLIB,'SELECT PSHN9G FROM F9G00 WHERE PSHN9G=''XXXXXXX'')
Am I missing something?
Thanks

There is no need to use OPENQUERY and EXECUTE, you can simply reference LinkedServer if you know which DB is your table into:
CREATE PROCEDURE [dbo].[SP_GETPRODRECORD]
#PR_NO varchar(10)=''
AS
BEGIN
--No need to CREATE TABLE every time you exec SP. SELECT INTO #temp table instead.
SELECT PSHN9G INTO #temp FROM WAVEDLIB.DBName.dbo.F9G00 WHERE PSHN9G=#PR_NO
SELECT * FROM #temp
END

Related

Insert data into a table from Open Query with variable

I am trying to using OPENQUERY to pull some data into a table. Here's what my code looks like:
DECLARE #TSQL VARCHAR(MAX)
DECLARE #CD VARCHAR(10) = 'XX'
DECLARE #OracleData TABLE (Cd VARCHAR(20), ApptDATE Datetime )
INSERT INTO #OracleData(Cd,ApptDATE )
SELECT #TSQL = 'SELECT * FROM OPENQUERY(LinkedServer,''Select p.Cd, p.AppDate
from ta.table1 p
where p.IdCode = ''''' + #CD + ''''''')'
EXEC (#TSQL)
I end up with the following error:
An INSERT statement cannot contain a SELECT statement that assigns
values to a variable.
When I attempt to run the EXEC(#TSQL) without the INSERT it works like a charm, but I am unable to do an insert.
Any ideas how I can possibly resolve this?
Thanks.
You are doing this the wrong way round.
Don't insert the #TSQL variable into your table, set the variable, then insert the results using INSERT...EXEC...
DECLARE #TSQL nvarchar(max) = '
SELECT *
FROM OPENQUERY(LinkedServer,
''Select p.Cd, p.AppDate
from ta.table1 p
where p.IdCode = ''''' + #CD + ''''''')
';
INSERT INTO #OracleData (Cd, ApptDATE)
EXEC (#TSQL);
I'm sure there is an excellent reason you are not just using a straight Linked Server query without dynamic SQL, but I can't think of one.

Stored procedure insert into table not working due to identifier not found

I'm trying to insert all records from tableA to tableB. TableA exists, TableB does not.
Here is my stored procedure. This code works but it's limited to a fixed table name tableB:
USE [myDatabaseName]
GO
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
ALTER PROCEDURE [dbo].[myStoreProcedureFileName]
AS
BEGIN
SELECT *
INTO tableB
FROM tableA
END
However, I want to make tableB as a variable so I can pass it from C# code, this doesn't work, please help:
ALTER PROCEDURE [dbo].[myStoreProcedureFileName]
#tableName varchar(32)
AS
BEGIN
SELECT *
INTO #tableName
FROM tableA
END
Please help - why is SQL Server not recognizing #tableName in the select line? Solutions?
You need to use dynamic SQL:
ALTER PROCEDURE [dbo].[myStoreProcedureFileName] (
#tableName varchar(32)
) AS
BEGIN
DECLARE #sql NVARCHAR(MAX) = 'SELECT * into #tableName from tableA';
SET #sql = REPLACE(#sql, '#tableName', #tableName);
EXEC sp_executesql #sql;
END;
Parameters can only replace constants in a SQL statement. They cannot replace identifiers, operators, function names, or keywords.
You must use dynamic SQL
declare #sql nvarchar(max);
set #sql = N'select * into ' + #tableName + N' from tableA';
exec sp_executesql #sql;

sp_executesql and table output

I'm writing a stored procedure in SQL Server 2005, at given point I need to execute another stored procedure. This invocation is dynamic, and so i've used sp_executesql command as usual:
DECLARE #DBName varchar(255)
DECLARE #q varchar(max)
DECLARE #tempTable table(myParam1 int, -- other params)
SET #DBName = 'my_db_name'
SET q = 'insert into #tempTable exec ['+#DBName+'].[dbo].[my_procedure]'
EXEC sp_executesql #q, '#tempTable table OUTPUT', #tempTable OUTPUT
SELECT * FROM #tempTable
But I get this error:
Must declare the scalar variable "#tempTable".
As you can see that variable is declared. I've read the documentation and seems that only parameters allowed are text, ntext and image. How can I have what I need?
PS: I've found many tips for 2008 and further version, any for 2005.
Resolved, thanks to all for tips:
DECLARE #DBName varchar(255)
DECLARE #q varchar(max)
CREATE table #tempTable(myParam1 int, -- other params)
SET #DBName = 'my_db_name'
SET #q = 'insert into #tempTable exec ['+#DBName+'].[dbo].[my_procedure]'
EXEC(#q)
SELECT * FROM #tempTable
drop table #tempTable
SQL Server 2005 allows to use INSERT INTO EXEC operation (https://learn.microsoft.com/en-us/sql/t-sql/statements/insert-transact-sql?view=sqlallproducts-allversions).
You might create a table valued variable and insert result of stored procedure into this table:
DECLARE #tempTable table(myParam1 int, myParam2 int);
DECLARE #statement nvarchar(max) = 'SELECT 1,2';
INSERT INTO #tempTable EXEC sp_executesql #statement;
SELECT * FROM #tempTable;
Result:
myParam1 myParam2
----------- -----------
1 2
or you can use any other your own stored procedure:
DECLARE #tempTable table(myParam1 int, myParam2 int);
INSERT INTO #tempTable EXEC [dbo].[my_procedure];
SELECT * FROM #tempTable;
#tempTable's scope is limited to the current procedure.
You could replace the #tempTable with a global temporary table (i.e. ## table), but be very careful with the scope of that table and be sure to drop it when the procedure ends

Selecting a database from a variable

So I have two databases that have no relationship between them. The first one is where my dbo.Clients exists and has a column of the database name of the second db . My thought was to select the dbName from the Clients then use that variable to select data from the second database.
The query doesnt run can some one shed a little light? Thanks.
#dbName varchar(50) OUTPUT,
#clientID varchar(50)
AS
BEGIN
SET NOCOUNT ON;
-- Insert statements for procedure here
SELECT * FROM sql02.iproconfig4.dbo.Clients
SET #dbName = (SELECT Clients.ClientDatabase FROM sql02.iproconfig4.dbo.Clients WHERE ClientID = #clientID)
SELECT * FROM sql02.#dbName.dbo.Discovery
END
You will need to use dynamic SQL to accomplish this:
DECLARE #sql nvarchar(max)
SET #sql = 'SELECT * FROM sql02.' + #dbName + '.dbo.Discovery'
EXEC sp_executesql #sql

Execute sp_executeSql for select...into #table but Can't Select out Temp Table Data

Was trying to select...into a temp Table #TempTable in sp_Executedsql.
Not its successfully inserted or not but there Messages there written
(359 row(s) affected) that mean successful inserted?
Script below
DECLARE #Sql NVARCHAR(MAX);
SET #Sql = 'select distinct Coloum1,Coloum2 into #TempTable
from SPCTable with(nolock)
where Convert(varchar(10), Date_Tm, 120) Between #Date_From And #Date_To';
SET #Sql = 'DECLARE #Date_From VARCHAR(10);
DECLARE #Date_To VARCHAR(10);
SET #Date_From = '''+CONVERT(VARCHAR(10),DATEADD(d,DATEDIFF(d,0,GETDATE()),0)-1,120)+''';
SET #Date_To = '''+CONVERT(VARCHAR(10),DATEADD(d,DATEDIFF(d,0,GETDATE()),0)-1,120)+''';
'+ #Sql;
EXECUTE sp_executesql #Sql;
After executed,its return me on messages (359 row(s) affected).
Next when trying to select out the data from #TempTable.
Select * From #TempTable;
Its return me:
Msg 208, Level 16, State 0, Line 2
Invalid object name '#TempTable'.
Suspected its working only the 'select' section only. The insert is not working.
how fix it?
Using a global temporary table in this scenario could cause problems as the table would exist between sessions and may result in some problems using the calling code asynchronously.
A local temporary table can be used if it defined before calling sp_executesql e.g.
CREATE TABLE #tempTable(id int);
execute sp_executesql N'INSERT INTO #tempTable SELECT myId FROM myTable';
SELECT * FROM #tempTable;
Local temporary table #table_name is visible in current session only, global temporary ##table_name tables are visible in all sessions. Both lives until their session is closed.
sp_executesql - creates its own session (maybe word "scope" would be better) so that's why it happens.
In your #sql string, don't insert into #TempTable. Instead, call your SELECT statement without an INSERT statement.
Finally, insert the results into your temporary table like so:
INSERT INTO #tmpTbl EXEC sp_executesql #sql
Also, you'll need to declare the temporary table if you use this approach
DECLARE #tmpTbl TABLE (
//define columns here...
)
your temp table in dynamic SQL is out of scope in the non dynamic SQL part.
Look here how to deal with this: A bit about sql server's local temp tables
Temporary tables only live as long as the connection that creates them. I would expect that you're unintentionally issuing the select on a separate connection. You can test this by momentarily doing your insert into a non-temporary table and seeing if your data is there. If that is the case you can go back to your original solution and just be sure to pass the connection object to your select.
declare #sql varchar(1000)
set #sql="select * into #t from table;"
set #sql =#sql + "select * from #t;"
execute SP_EXECUTESQL #sql
This worked for me
declare #sql nvarchar(max)
create table #temp ( listId int, Name nvarchar(200))
set #sql = 'SELECT top 10 ListId, Name FROM [V12-ListSelector].[dbo].[List]'
insert into #temp
exec sp_executesql #sql
select * from #temp
drop table #temp
To work around this issue use a CREATE TABLE #TEMPTABLE command first to generate an empty temp table before running sp_executesql. Then run the INSERT INTO #TEMPTABLE with sp_executesql. This will work. This is how I overcome this problem as I have a setup in which all my queries are usually run via sp_executesql.
This one worked for me:
DECLARE #Query as NVARCHAR(MAX);
SET #Query=(SELECT * FROM MyTable) ;
SET #Query=(SELECT 'SELECT * INTO dbo.TempTable FROM ('+#Query +') MAIN;');
EXEC sp_executesql #Query;
SELECT * INTO #TempTable FROM dbo.TempTable;
DROP TABLE dbo.TempTable;
SELECT * FROM #TempTable;
Note, from T-SQL 2021 onwards, dm_exec_describe_first_result_set() can be used to build a temporary table in the right shape to INSERT INTO - as it gives you the column names and types that will be returned from your dynamic SELECT or EXEC ... so you can build dynamic SQL to ALTER a temporary table into the shape you need.
DECLARE #strSQL NVarChar(max) = 'EXEC [YourSP] #dtAsAt=''2022-11-09'', #intParameter2=42'
--*** Build temporary table: create it with dummy column, add columns dynamically
--*** using an exec of sys.dm_exec_describe_first_result_set() and dropping the dummy column
DROP TABLE IF EXISTS #tblResults;
CREATE TABLE #tblResults ([zz] INT);
DECLARE #strUpdateSQL NVarChar(max);
SELECT #strUpdateSQL = STRING_AGG( CONCAT( 'ALTER TABLE #tblResults ADD ',
QUOTENAME([name]), ' ',
[system_type_name], ';')
, ' ') WITHIN GROUP (ORDER BY [column_ordinal])
FROM sys.dm_exec_describe_first_result_set (#strSQL, NULL, 0)
SET #strUpdateSQL += 'ALTER TABLE #tblResults DROP COLUMN [zz];'
EXEC (#strUpdateSQL);
--*** Now we have #tblResults in the right shape to insert into, and use afterwards
INSERT INTO #tblResults EXEC (#strSQL);
SELECT * FROM #tblResults;
--*** And tidy up
DROP TABLE IF EXISTS #tblResults;