How can I skip errors and continue running the SQL-query? - sql-server

Question

I am writing a piece of code with the intention of searching through all databases in the server for a certain table name, however I ran into some trouble since I do not have permission to read/access all databases in the server.
I am wondering if there is a way for the query to advance if one statement is not available due to security permissions (i.e. if I have ten databases in a particular server with no access to the fourth, I would want it to run 1-2-3 and then 5-6-7-8-9-10 with returned results).
I have tried using TRY-CATCH, but I cannot seem to get the code to bypass the initial problem which is stopping when the security permissions are not available.
declare #tabell varchar(254) = 'JE' -- table name which is supposed to be
--found.
-- STEP 1: lists all available databases in the server with a row number.
drop table if exists #steg1 select name, row_number() over (order by
name) as rownumber into #steg1 from sys.databases
-- STEP 2: generates code for all databases in order to identify those
--with the table name #tabell.
drop table if exists #steg2 select 1 Ordn,'use '+name+' drop table if
exists #hitta select * into #hitta from sys.tables where name =
'''+ltrim(#tabell)+'''' as script into #steg2 from #steg1 a
where rownumber =1
union
select 2 Ordn, 'use '+name+' insert into #hitta select * from sys.tables
where name = '''+ltrim(#tabell)+'''' from #steg1 a
where rownumber >1
union
select 3 Ordn,'select * from #hitta' as x
-- STEP 3: concatenate the generated code into a single string.
declare #string varchar(max)
select #string = concat(#string + ' ', '')+ script from #steg2
drop table if exists #steg3 select #string as string into #steg3
-- STEP 4: exec the code concatenated in the previous step.
declare #cmd varchar(max)
begin
set #cmd = (select string from #steg3)
exec (#cmd)
end
Getting the error message: Msg 916, level 14, state 1, stating that the user cannot access the database under the current security context.

Answer 1

I managed to solve my issue using has_dbaccess(database), below you can see how I incorporated it into the code.
declare #tabell varchar(254) = 'JE' -- table name which is
supposed to be found.
-- STEP 1: lists all available databases in the server with a row number.
drop table if exists #steg1 select name, row_number() over (order by name) as rownumber
into #steg1 from (SELECT name, has_dbaccess(name) access FROM sys.databases) a where
access = 1
-- STEP 2: generates code for all databases in order to identify those with the table
--name #tabell.
drop table if exists #steg2 select 1 Ordn,'use '+name+' drop table if exists #hitta
select name as [Table], cast('''+name+'''as varchar(max)) as [Databas] into #hitta from
sys.tables where name = '''+ltrim(#tabell)+'''' as script into #steg2 from #steg1 a
where rownumber =1
union
select 2 Ordn, 'use '+name+' insert into #hitta select name as [Table],
cast('''+name+'''as varchar(max)) as [Databas] from sys.tables where name =
'''+ltrim(#tabell)+'''' from #steg1 a
where rownumber >1
union
select 3 Ordn,'select * from #hitta' as x
-- STEP 3: concatenate the generated code into a single string.
declare #string varchar(max)
select #string = concat(#string + ' ', '')+ script from #steg2
drop table if exists #steg3 select #string as string into #steg3
-- STEP 4: exec the code concatenated in the previous step.
declare #cmd varchar(max)
begin
set #cmd = (select string from #steg3)
exec (#cmd)
end