How to Execute script in multiple databases at once - sql

Question

In Sql Server
I have sample script
Declare #V table (name varchar(100))
INSERT INTO #V(name)
select name from sys.databases where database_id > 6
select NAME from #V
If I execute this Script I get the user databases list
In my instance I have below Databases :
DatabaseName
mohan
Ravi
How can I dynamically append the Database names to below script and execute the script in below Databases
Declare #V table (ID INT,name varchar(100))
INSERT INTO #V(Id,name)
select ROW_NUMBER()OVER(ORDER BY NAME),name from sys.databases where database_id > 6
DECLARE #LoopCounter INT , #MaxId INT,
#Name NVARCHAR(100)
SELECT #LoopCounter = min(id) , #MaxId = max(Id)
FROM #V
WHILE(#LoopCounter IS NOT NULL
AND #LoopCounter <= #MaxId)
BEGIN
SELECT #Name = Name
FROM #V WHERE Id = #LoopCounter
PRINT #Name
SET #LoopCounter = #LoopCounter + 1
END
DECLARE #DatabaseName VARCHAR(50) = #Name
, #SQL NVARCHAR(MAX);
SET #SQL = N'USE ' + QUOTENAME(#DatabaseName)
+'CREATE TABLE T(ID INT)';
--PRINT(#SQL);
EXECUTE(#SQL);
So in all user databases Table will be created . I have tried with sp_msforeachdb
script :
DECLARE #Sql AS VARCHAR(4000)
SET #Sql = 'IF ''?'' NOT IN (''master'',''tempdb'',''model'',''msdb'',''ReportServer'',''ReportServerTempDB'')
EXECUTE ('' USE [?] CREATE TABLE T (ID INT)'')'
EXEC sp_MSforeachdb #command1 = #Sql
But I'm looking for looping script .How to append those names to the Script

Answer 1

No need for a loop here. You can generate the entire statement in one pass. This query populates a var that contains multiple USE and CREATE TABLE statements:
DECLARE #Qry NVARCHAR(MAX) = '';
-- Build dynamic SQL statement here.
-- 1 Row returned per target database .
SELECT
#Qry +=
'
USE' + QUOTENAME(Name) + ';
CREATE TABLE T
(
ID INT
)
;
'
FROM
sys.Databases
WHERE
database_id > 6
;
-- Remove comments from last line when happy with query.
PRINT #Qry
--EXECUTE sp_ExecuteSQL #Qry
Returns
USE [X];
CREATE TABLE T
(
ID INT
)
;
USE [Y];
CREATE TABLE T
(
ID INT
)
;
...