Running SQL across Several databases - sql

Question

I understand I cant use [USE] statement within a sproc, however I need to query across several databases, this works great stand alone, how can I adapt this query to run across specified databases.
Would I have to Union all and specify each database?
Any Help is greatly appreciated
/* Intalytics section for TB*/
BEGIN
DECLARE #STARTDATE AS DATE = '2022-01-01'
,#ENDDATE AS DATE = '2022-02-28';
SET NOCOUNT ON;
IF OBJECT_ID(N'tempdb.dbo.#TB') IS NOT NULL
DROP TABLE #TB;
DECLARE #intcount INT
DECLARE #DATABASENAME NVARCHAR(25)
SET #intcount = 1
CREATE TABLE #TB (
Current_Database VARCHAR(50)
,Acct VARCHAR(50)
,AcctName NVARCHAR(100)
,[Month] DATETIME
,Oppening_Balance NUMERIC(18, 2)
,[Debit] NUMERIC(18, 2)
,[Credit] NUMERIC(18, 2)
,[Balance] NUMERIC(18, 2)
,[CBalance] NUMERIC(18, 2)
)
CREATE CLUSTERED INDEX ix_tempCIcOMPANY ON #TB (Acct)
WHILE (#intcount <= 23)
BEGIN
IF #intcount = 1
BEGIN
SET #DATABASENAME = 'KSS_INC'
USE [KSS_INC]
END
IF #intcount = 2
BEGIN
SET #DATABASENAME = 'KSS_LTD'
USE [KSS_LTD]
END
IF #intcount = 3
BEGIN
SET #DATABASENAME = 'MPSI_US'
USE [MPSI_US]
END
IF #intcount = 4
BEGIN
SET #DATABASENAME = 'KENTGRPLTD'
USE [KENTGRPLTD]
END
IF #intcount = 5
BEGIN
SET #DATABASENAME = 'KSS_INDIA'
USE [KSS_INDIA]
END
IF #intcount = 6
BEGIN
SET #DATABASENAME = 'KSS_Canada'
USE [KSS_Canada]
END
IF #intcount = 7
BEGIN
SET #DATABASENAME = 'KSS_AUS'
USE [KSS_AUS]
END
IF #intcount = 8
BEGIN
SET #DATABASENAME = 'MPS_INDIA'
USE [MPS_INDIA]
END
IF #intcount = 9
BEGIN
SET #DATABASENAME = 'MPSI_SAF'
USE [MPSI_SAF]
END
IF #intcount = 10
BEGIN
SET #DATABASENAME = 'MPSI_CAN'
USE [MPSI_CAN]
END
IF #intcount = 11
BEGIN
SET #DATABASENAME = 'MPSI_JAP'
USE [MPSI_JAP]
END
IF #intcount = 12
BEGIN
SET #DATABASENAME = 'MPSI_UK'
USE [MPSI_UK]
END
IF #intcount = 13
BEGIN
SET #DATABASENAME = 'MPSI_CHI'
USE [MPSI_CHI]
END
IF #intcount = 14
BEGIN
SET #DATABASENAME = 'KAL_LTD'
USE [KAL_LTD]
END
IF #intcount = 15
BEGIN
SET #DATABASENAME = 'TRADE_AREA_SYSTEMS'
USE [TRADE_AREA_SYSTEMS]
END
IF #intcount = 16
BEGIN
SET #DATABASENAME = 'INTALYTICS'
USE [INTALYTICS]
END
IF #intcount = 17
BEGIN
SET #DATABASENAME = 'KSSL_LTD'
USE [KSSL_LTD]
END
IF #intcount = 18
BEGIN
SET #DATABASENAME = 'MPSI'
USE [MPSI]
END
IF #intcount = 19
BEGIN
SET #DATABASENAME = 'MPSI_INT'
USE [MPSI_INT]
END
IF #intcount = 20
BEGIN
SET #DATABASENAME = 'MPSI_KOR'
USE [MPSI_KOR]
END
IF #intcount = 21
BEGIN
SET #DATABASENAME = 'NEW_SIS_SA'
USE [NEW_SIS_SA]
END
IF #intcount = 22
BEGIN
SET #DATABASENAME = 'MPSICHI_INC'
USE [MPSICHI_INC]
END
IF #intcount = 23 -- to stop loop after last database
BEGIN
BREAK
END
INSERT INTO #TB
SELECT #DATABASENAME
,T1.Account
,T2.AcctName
,CONCAT (
DATENAME(MONTH, T1.RefDate)
,' '
,YEAR(T1.REFDATE)
) AS [Month]
,Isnull((
SELECT SUM(T3.Debit - T3.Credit)
FROM dbo.OJDT T2
INNER JOIN dbo.JDT1 T3 ON T2.TransId = T3.TransId
WHERE DateDiff(dd, T2.RefDate, #StartDate) > 0
AND T3.Account LIKE T1.Account
GROUP BY T3.Account
), 0) 'Opening balance'
,SUM(T1.Debit) 'Debit'
,SUM(T1.Credit) 'Credit'
,SUM(T1.Debit - T1.Credit) AS 'Balance'
,Isnull((
SELECT SUM(T3.Debit - T3.Credit)
FROM dbo.OJDT T2
INNER JOIN dbo.JDT1 T3 ON T2.TransId = T3.TransId
WHERE DateDiff(dd, T2.RefDate, #StartDate) > 0
AND T3.Account LIKE T1.Account
GROUP BY T3.Account
), 0) + SUM(T1.Debit - T1.Credit) AS 'CBalance'
--- CB
FROM OJDT T0
INNER JOIN JDT1 T1 ON T0.TransId = T1.TransId
LEFT JOIN dbo.OACT T2 ON T2.AcctCode = T1.Account /*added to bring through */
WHERE T0.RefDate BETWEEN #StartDate
AND #EndDate
GROUP BY T1.Account
,T2.AcctName
,CONCAT (
DATENAME(MONTH, T1.RefDate)
,' '
,YEAR(T1.REFDATE)
)
,LEFT(DATENAME(MONTH, t1.RefDate), 3) + ' ' + RIGHT('00' + CAST(YEAR(t1.RefDate) AS VARCHAR), 2)
HAVING SUM(T1.Debit - T1.Credit) != 0
SET #intcount = #intcount + 1
END
SELECT *
FROM #TB AS t
END

Answer 1

DECLARE #SQL nvarchar
SET #SQL =''
WHILE (#intcount <= 23)
BEGIN
IF #intcount = 1
BEGIN
SET #DATABASENAME = 'KSS_INC'
USE [KSS_INC]
END
IF #intcount = 2
BEGIN
SET #DATABASENAME = 'KSS_LTD'
USE [KSS_LTD]
END
IF #intcount = 3
BEGIN
SET #DATABASENAME = 'MPSI_US'
USE [MPSI_US]
END
IF #intcount = 4
BEGIN
SET #DATABASENAME = 'KENTGRPLTD'
USE [KENTGRPLTD]
END
IF #intcount = 5
BEGIN
SET #DATABASENAME = 'KSS_INDIA'
USE [KSS_INDIA]
END
IF #intcount = 6
BEGIN
SET #DATABASENAME = 'KSS_Canada'
USE [KSS_Canada]
END
IF #intcount = 7
BEGIN
SET #DATABASENAME = 'KSS_AUS'
USE [KSS_AUS]
END
IF #intcount = 8
BEGIN
SET #DATABASENAME = 'MPS_INDIA'
USE [MPS_INDIA]
END
IF #intcount = 9
BEGIN
SET #DATABASENAME = 'MPSI_SAF'
USE [MPSI_SAF]
END
IF #intcount = 10
BEGIN
SET #DATABASENAME = 'MPSI_CAN'
USE [MPSI_CAN]
END
IF #intcount = 11
BEGIN
SET #DATABASENAME = 'MPSI_JAP'
USE [MPSI_JAP]
END
IF #intcount = 12
BEGIN
SET #DATABASENAME = 'MPSI_UK'
USE [MPSI_UK]
END
IF #intcount = 13
BEGIN
SET #DATABASENAME = 'MPSI_CHI'
USE [MPSI_CHI]
END
IF #intcount = 14
BEGIN
SET #DATABASENAME = 'KAL_LTD'
USE [KAL_LTD]
END
IF #intcount = 15
BEGIN
SET #DATABASENAME = 'TRADE_AREA_SYSTEMS'
USE [TRADE_AREA_SYSTEMS]
END
IF #intcount = 16
BEGIN
SET #DATABASENAME = 'INTALYTICS'
USE [INTALYTICS]
END
IF #intcount = 17
BEGIN
SET #DATABASENAME = 'KSSL_LTD'
USE [KSSL_LTD]
END
IF #intcount = 18
BEGIN
SET #DATABASENAME = 'MPSI'
USE [MPSI]
END
IF #intcount = 19
BEGIN
SET #DATABASENAME = 'MPSI_INT'
USE [MPSI_INT]
END
IF #intcount = 20
BEGIN
SET #DATABASENAME = 'MPSI_KOR'
USE [MPSI_KOR]
END
IF #intcount = 21
BEGIN
SET #DATABASENAME = 'NEW_SIS_SA'
USE [NEW_SIS_SA]
END
IF #intcount = 22
BEGIN
SET #DATABASENAME = 'MPSICHI_INC'
USE [MPSICHI_INC]
END
IF #intcount = 23 -- to stop loop after last database
BEGIN
BREAK
END
SET #SQL =' INSERT INTO #TB
SELECT' + #DATABASENAME +'
,T1.Account
,T2.AcctName
,CONCAT (
DATENAME(MONTH, T1.RefDate)
,'' ''
,YEAR(T1.REFDATE)
) AS [Month]
,Isnull((
SELECT SUM(T3.Debit - T3.Credit)
FROM '+#DATABASENAME+'.dbo.OJDT T2
INNER JOIN '+#DATABASENAME+'.dbo.JDT1 T3 ON T2.TransId = T3.TransId
WHERE DateDiff(dd, T2.RefDate, '+#StartDate+') > 0
AND T3.Account LIKE T1.Account
GROUP BY T3.Account
), 0) ''Opening balance''
,SUM(T1.Debit) ''Debit''
,SUM(T1.Credit) ''Credit''
,SUM(T1.Debit - T1.Credit) AS ''Balance''
,Isnull((
SELECT SUM(T3.Debit - T3.Credit)
FROM '+#DATABASENAME+'.dbo.OJDT T2
INNER JOIN '+#DATABASENAME+'.dbo.JDT1 T3 ON T2.TransId = T3.TransId
WHERE DateDiff(dd, T2.RefDate, '+#StartDate+') > 0
AND T3.Account LIKE T1.Account
GROUP BY T3.Account
), 0) + SUM(T1.Debit - T1.Credit) AS ''CBalance''
--- CB
FROM '+#DATABASENAME+'..OJDT T0
INNER JOIN '+#DATABASENAME+'..JDT1 T1 ON T0.TransId = T1.TransId
LEFT JOIN '+#DATABASENAME+'.dbo.OACT T2 ON T2.AcctCode = T1.Account
WHERE T0.RefDate BETWEEN '+#StartDate+'
AND '+#EndDate+'
GROUP BY T1.Account
,T2.AcctName
,CONCAT (
DATENAME(MONTH, T1.RefDate)
,'' ''
,YEAR(T1.REFDATE)
)
,LEFT(DATENAME(MONTH, t1.RefDate), 3) + '' '' + RIGHT(''00'' + CAST(YEAR(t1.RefDate) AS VARCHAR), 2)
HAVING SUM(T1.Debit - T1.Credit) != 0
SET '+#intcount+' = '+#intcount+' + 1
END
SELECT *
FROM '+#DATABASENAME+'..#TB AS t'
exec(#SQL)