DB Version Control Update ScriptΒΆ

This code prevent the query to be executed multiple times.


If the version is already present the query block will be skipped.

-- check if version already exists
declare v_tmp number;v_major number := <VERSION>; begin
select nvl((select major from DB_VERSION where MAJOR = v_major), 0) into v_tmp from dual;if v_tmp = 0 then
INSERT INTO DB_VERSION VALUES( v_major, 0, sysdate, 'sql' );
-- if doesn't exist execute queries

        -- put your query here

-- end procedure here
end if;end;


Replace <VERSION> with your svn commit revision