在链接服务器上的SQL Server存储过程中使用动态服务器和数据库名称

Question

I have a requirement. Using SSIS i am import data from flat file/excel file into my staging table. From staging table i need to filter data and transfer it to different databases over different linked server.ie let say for California i have dbCalifornia on Server A, For Taxes i have dbTaxes on Server B etc etc. I need to read config table and redirect data accordingly.ie if column value =CALI insert data in dbCalifornia.tblA, for column value =TAX insert data in dbTaxes.tblA. I am trying to use Server Name and Database name as variable (because i am reading these from config table) ie

INSERT INTO [@server].[@database].[DBO].[BASIC]

But i am getting error . I am not expert DBA please suggest my solution how can i implement this scenario.

TIA

Answer 1

You can do it using dynamic sql like this:

declare @server varchar(100), @database varchar(100);

DECLARE @sql varchar(8000) ='INSERT INTO[' + @server +'].['+ @database + '.[DBO].[BASIC]' + 
'(EmpID,EmployeeID,ADDR1, ADDR2, ADDR3,ADDR4,TELNUM,MARRIED,LNAME,MNAME,FNAME,' + 
'SEX, EMAIL,COUNTRYCODE, CITIZEN) ' + 
'select EmpID,EmployeeID,ADDR1, ADDR2, ADDR3,ADDR4,TELNUM,MARRIED,LNAME,MNAME,FNAME,
SEX, EMAIL,COUNTRYCODE, CITIZEN from dbo.myExcelTable where state = ' + @database;

exec(@sql); 

I don't understand what are your 100 variables tht you use in your insert, didn't you say

if column value =CALI insert data in dbCalifornia.tblA, for column value =TAX insert data in dbTaxes.tblA. ?

So you just need to filter your table using @database value and insert those rows in corresponding table

Answer 2

normally when reading a table from another server and DB. I use the LinkedServer, user and table like this:

Select * from Link..User.Table ;

after a linked server I have to use 2 dots.

I don't know if this can help since this is to read from an Oracle database.