Question

I am doing something like this:

exec up_sp1 -- executing this stored procedure which populates the table sqlcmds

---Check the count of the table sqlcmds,
---if the count is zero then execute   up_sp2,
----otherwise wait till the count becomes zero,then exec up_sp2


IF NOT EXISTS ( SELECT 1 FROM [YesMailReplication].[dbo].[SQLCmds])
BEGIN

exec up_sp2 

END

What would the correct t-sql look like?

Answer 1

The Service Broker solution is surely the best – but there is a WAITFOR solution as well:

exec up_sp1;

while exists (select * from [YesMailReplication].[dbo].[SQLCmds]) begin
    waitfor delay ('00:00:10'); -- wait for 10 seconds
end;

exec up_sp2;