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SQL: Pull List Of Tables From Specified Database While Attached To Another

I am facing a peculiar issue with loading a list of tables from a specific database (well rather a group of databases) while attached to the master database. Currently my query loads all of the databases on the server, then loops through those databases sending information back to the client via RAISERROR. As this loop is executing I need a nested loop to load all of the tables for the current database for later transmission as a SELECT once the query has completed. The issue I'm running into is that this will be executed as a single query inside of C# code. Ideally I would like to load everything in SQL and return it to the client for processing. For example:
WHILE (#dbLoop < #dbCount) BEGIN
-- Do cool things and send details back to client.
SET #dbName = (SELECT _name FROM dbTemp WHERE _id = #dbLoop);
-- USE [#dbName]
-- Get a count of the tables from info schema on the newly specified database.
WHILE (#tableLoop < #tableCount) BEGIN
-- USE [#dbName]
-- Do super cool things and load tables from info schema.
SET #tableLoop += 1;
END
SET #dbLoop += 1;
END
-- Return the list of tables from all databases to the client for use with SQLDataAdapter.
SELECT * FROM tableTemp;
This topic is pretty straight forward; I just need a way to access tables in a specified database (preferably by name) without having to change the connection on the SqlConnection object, and without having to have a loop inside of my C# code to process the same query on each database on the C# side. It would be more efficient to load everything in SQL and send it back to the application. Any help that can be provided on this would be great!
Thanks,
Jamie

All the tables are in the meta data you can just do a query against that and join to your list of schemas you want to look at.
SELECT tab.name
FROM sys.tables AS tab
JOIN sys.schemas AS sch on tab.schema_id = sch.schema_id
JOIN dbTemp temp on sch.name = temp.[_name]
This returns a list of the table to return back as a result set.

The statement USE [#dbName] takes effect AFTER it is run (usually via the GO statement.
USE [#dbName]
GO
The above 2 lines would make you start using the new Database. You cannot use this in the middle of your SQL or SP.
One other option which you can use is to use the dot notation, i.e., dbname..tablename syntax to query your tables.
double dot notation post

Okay, after spending all day working on this, I have finally come up with a solution. I load all the databases into a table variable, then I begin looping through those databases and send back their details to the client. After the database details themselves have been sent to the client via RAISERROR I then utilize sp_executesql to execute a new sub-query with the current database specified to get the list of tables for processing at the end of the primary. The example below demonstrates the basic structure of this process for others experiencing this issue in the future.
Thank you all once again for your help!
-Jamie
DECLARE #LoopCounter INT = 1, #DatabaseCount INT = 0;
DECLARE #SQL NVARCHAR(MAX), #dbName NVARCHAR(MAX);
DECLARE #Databases TABLE ( _id INT, _name NVARCHAR(MAX) );
DECLARE #Tables TABLE ( _name NVARCHAR(MAX), _type NVARCHAR(15) );
INSERT INTO #Databases
SELECT ROW_NUMBER() OVER(ORDER BY name) AS id, name
FROM sys.databases
WHERE name NOT IN ( 'master', 'tempdb', 'msdb', 'model' );
SET #DatabaseCount = (SELECT COUNT(*) FROM #Databases);
WHILE (#LoopCounter <= #DatabaseCount) BEGIN
SET #dbName = (SELECT _name FROM #Databases WHERE _id = #LoopCounter);
SET #SQL NVARCHAR(MAX) = 'SELECT TABLE_NAME, TABLE_TYPE
FROM [' + #dbName + '].INFORMATION_SCHEMA.TABLES';
INSERT INTO #Tables EXEC sp_executesql #SQL;
SET #LoopCounter += 1;
END

How to insert Huge dummy data to Sql server

Currently development team is done their application, and as a tester needs to insert 1000000 records into the 20 tables, for performance testing.
I gone through the tables and there is relationship between all the tables actually.
To insert that much dummy data into the tables, I need to understand the application completely in very short span so that I don't have the dummy data also by this time.
In SQL server is there any way to insert this much data insertion possibility.
please share the approaches.
Currently I am planning with the possibilities to create dummy data in excel, but here I am not sure the relationships between the tables.
Found in Google that SQL profiler will provide the order of execution, but waiting for the access to analyze this.
One more thing I found in Google is red-gate tool can be used.
Is there any script or any other solution to perform this tasks in simple way.
I am very sorry if this is a common question, I am working first time in SQL real time scenario. but I have the knowledge on SQL.

Why You don't generate those records in SQL Server. Here is a script to generate table with 1000000 rows:
DECLARE #values TABLE (DataValue int, RandValue INT)
;WITH mycte AS
(
SELECT 1 DataValue
UNION all
SELECT DataValue + 1
FROM mycte
WHERE DataValue + 1 <= 1000000
)
INSERT INTO #values(DataValue,RandValue)
SELECT
DataValue,
convert(int, convert (varbinary(4), NEWID(), 1)) AS RandValue
FROM mycte m
OPTION (MAXRECURSION 0)
SELECT
v.DataValue,
v.RandValue,
(SELECT TOP 1 [User_ID] FROM tblUsers ORDER BY NEWID())
FROM #values v
In table #values You will have some random int value(column RandValue) which can be used to generate values for other columns. Also You have example of getting random foreign key.

Below is a simple procedure I wrote to insert millions of dummy records into the table, I know its not the most efficient one but serves the purpose for a million records it takes around 5 minutes. You need to pass the no of records you need to generate while executing the procedure.
IF EXISTS (SELECT 1 FROM dbo.sysobjects WHERE id = OBJECT_ID(N'[dbo].[DUMMY_INSERT]') AND type in (N'P', N'PC'))
BEGIN
DROP PROCEDURE DUMMY_INSERT
END
GO
CREATE PROCEDURE DUMMY_INSERT (
#noOfRecords INT
)
AS
BEGIN
DECLARE #count int
SET #count = 1;
WHILE (#count < #noOfRecords)
BEGIN
INSERT INTO [dbo].[LogTable] ([UserId],[UserName],[Priority],[CmdName],[Message],[Success],[StartTime],[EndTime],[RemoteAddress],[TId])
VALUES(1,'user_'+CAST(#count AS VARCHAR(256)),1,'dummy command','dummy message.',0,convert(varchar(50),dateadd(D,Round(RAND() * 1000,1),getdate()),121),convert(varchar(50),dateadd(D,Round(RAND() * 1000,1),getdate()),121),'160.200.45.1',1);
SET #count = #count + 1;
END
END

you can use the cursor for repeat data:
for example this simple code:
Declare #SYMBOL nchar(255), --sample V
#SY_ID int --sample V
Declare R2 Cursor
For SELECT [ColumnsName]
FROM [TableName]
For Read Only;
Open R2
Fetch Next From R2 INTO #SYMBOL,#SY_ID
While (##FETCH_STATUS <>-1 )
Begin
Insert INTO [TableName] ([ColumnsName])
Values (#SYMBOL,#SY_ID)
Fetch Next From R2 INTO #SYMBOL,#SY_ID
End
Close R2
Deallocate R2
/*wait a ... moment*/
SELECT COUNT(*) --check result
FROM [TableName]

C# TableAdapter Fill/Get by Multiple IDs

I'm faced with a little problem. The situation is:
I have a MSSQL table which contains IDs (int, identity, primarykey), and names (string).
This table is huge, so i don't want to fill the entire dataset just for one LINQ-query.
I have a search algorithm, which fills a List<int> with more than one ID.
I want to load the matching rows in a datagridview with the following code:
dataGridView1.DataSource = tbl_WorklistTableAdapter.GetDataByID(ids_here);
But i can't handle multiple IDs, just a single. The GetDataByID() code needs to be this (i think):
SELECT [ID]
,[NAME]
FROM [DataBase].[dbo].[tbl_Namelist]
WHERE ID IN (#searchterm)
However WHERE ID IN accepts comma-separated ints, like 1,2,3. But the #variable is just one int.
How should i convert string to ints?
Thank you, and sorry for bad eng. :)

In that case you need to change in sql so you need to generate one temp table for comma separated id and apply condition in the your query.
Like:-
DECLARE #variables VARCHAR(200) = #searchterm -- Your Variable
CREATE TABLE #temp(ID NUMERIC) DECLARE #temp VARCHAR(200)
SET #temp = #variables WHILE LEN(#temp) > 0 BEGIN DECLARE #t1 VARCHAR(200)
IF CHARINDEX(',',#temp) > 0
BEGIN
SET #t1 = SUBSTRING(#temp,0,CHARINDEX(',',#temp))
INSERT INTO #TEMP SELECT #t1
SET #temp = SUBSTRING(#temp,CHARINDEX(',',#temp)+1,len(#temp))
END
ELSE
BEGIN
INSERT INTO #TEMP SELECT #temp
SET #temp = ''
END
END
SELECT [ID]
,[NAME]
FROM [DataBase].[dbo].[tbl_Namelist]
WHERE ID IN (SELECT ID FROM #temp)

You can use the built-in function SPLIT_STRING function:
SELECT [ID], [NAME]
FROM [DataBase].[dbo].[tbl_Namelist]
WHERE ID IN (SELECT VALUE FROM SPLIT_STRING(#searchterm,','))
This only works on Compatibility level 130 or greater.
If you are on an older version of SQL Server you can follow this answer, which defines an equivalent function:
SELECT [ID], [NAME]
FROM [DataBase].[dbo].[tbl_Namelist]
WHERE ID IN (SELECT VALUE FROM fn_split_string(#searchterm,','))

How to insert values using Joins in asp.net stored procedure?

CREATE PROCEDURE [dbo].[K_HRM_Insert_VehicleAssign]
#vehiclename varchar(50),
#empname varchar(50),
#updatedby varchar(50),
#updatedon datetime
AS
BEGIN
INSERT INTO K_MasterEmpDetails ME
INNER JOIN K_HRM_Vehicle_Assign VA ON VA.[empname+id] = ME.Firstname +' '+ME.Lastname + ' - ' + ME.kjlid AS ME.Employee
(VA.vehiclename, ME.Employee, VA.updatedby, VA.updatedon)
VALUES (#vehiclename, #empname, #updatedby, GETDATE())
END
I am getting an error near ME...please help me

You can't use this syntax. Correct syntax is:
INSERT INTO Table
(COLUMNS)
VALUES
(value)
For correct insert into two tables you have to use transaction and insert into two table separately.

You're syntactically wrong. The correct syntax is what user said is basic
but you can use
Insert into Table
select statement
It will select the rows based on condition then insert into table.
and in select statement you can use join.

SQL Server 2008: re increment table after deletion

using SQL Server 2008, using MS Visual Studio 2012 C# .NET4.5
I asked a similar question last week that was solved with the following query:
DECLARE #from int = 9, #to int = 3
UPDATE MainPareto
SET pareto = m.new_pareto
FROM (
SELECT pKey, -- this is your primary key for the table
new_pareto = row_number()
over(ORDER BY CASE WHEN pareto = #from THEN #to ELSE pareto END,
CASE WHEN pareto = #from THEN 0 ELSE 1 END)
FROM MainPareto
-- put in any conditions that you want to restrict the scores by.
WHERE PG = #pg AND pareto IS NOT NULL
-- end condtions
) as m
INNER JOIN MainPareto ON MainPareto.pKey = m.pKey
WHERE MainPareto.pareto <> m.new_pareto
As you can see this works great, incriments the "league" when changes are made.
Now after some functionality user has requested a deletion and recovery.
On my winform, the user can right click the grid and delete the "part" number.
The user can also recover if needed.
However, I need a Stored procedure that will resort the grid and update like this method does after a deletion from another stored procedure has been made, my Winform will sort that part out, but i do need a procedure that can do what my current one does for a deletion.
Hope you guys understand, if not ask me and ill try and clarify best I can.

I am not totally sure if this is what you are looking for, but this is how you can reseed your Primary Key column (if your primary key is also an identity). Notice how my insert after the truncate does not include Column 1 (the primary key column).
select *
into #temp
from MainPareto
truncate table MainPareto
insert into MainPareto (col2, col3, col4) --...
select col2, col3, col4 --...
from #temp