Question

Today I get my database name like that :

set @databaseNameTXT = 'NewStat1DB';

And then I insert the data to the right table like that:

IF @databaseNameTXT = 'NewStat1DB' 
    BEGIN
        INSERT INTO [NewStat1DB] (wStat_id) values(@wStat_id)
    END

IF @databaseNameTXT = 'NewStat2DB'
    BEGIN
        INSERT INTO [NewStat2DB] (wStat_id) values(@wStat_id)
    END

How can I use the variable inside the t-sql and run it, something like:

INSERT INTO [@databaseNameTXT] (wStat_id) values(@wStat_id)

Thanks

Answer 1

You need to use dynamic SQL for this, though you need to be careful of SQL Injection.

Database, schema, table and column names cannot be variables – the only way to do this is use dynamic SQL.

For example (this is vulnerable to SQL Injection):

sp_executesql 'INSERT INTO [' + @databaseNameTXT + 
                '] (wStat_id) values(' + @wStat_id + ');';

I suggest reading the linked article – it is a comprehensive treatment of the subject of dynamic SQL.