set project_cc_code [db_string project_cc_code "select cost_center_code from im_cost_centers where cost_center_id = :project_cost_center_id" -default "Co"]
set project_cc_code_len [string length $project_cc_code]
lappend criteria "main_p.project_cost_center_id in (
select cost_center_id
from im_cost_centers
where substring(cost_center_code, 1, :project_cc_code_len) = :project_cc_code