add new function for DB2 database.

git-svn-id: http://15.206.35.175/svn/proteus/business-java/trunk@106686 ce508802-f39f-4f6c-b175-0d175dae99d5

webitm-gst-client/module-resource/sql/S17BBAS004.sql

@@ -473,6 +473,34 @@ end
 @
 
 
+drop function fn_get_hsn_sac@
+
+create  function fn_get_hsn_sac(as_sitecode varchar(5),as_itemcode varchar(10),as_acctcode varchar(10))
+returns varchar(20) 
+deterministic
+begin atomic
+declare ls_hsnno varchar(20);
+
+ if as_itemcode is null or length(trim(as_itemcode)) = 0 then
+	set ls_hsnno = (select sac_code  from accounts
+	where acct_code = as_acctcode);
+
+	else
+	
+	set ls_hsnno = (select hsn_no  from siteitem
+	where site_code = as_sitecode
+	and item_code = as_itemcode);
+  if ls_hsnno is null or length(trim(ls_hsnno)) = 0 then
+	set ls_hsnno = (select hsn_no  from item
+	where item_code = as_itemcode);
+  end if;
+  end if;
+  return ls_hsnno;
+
+end
+@
+
+
 drop function fn_gst_rate_amt@
 
 create  function fn_gst_rate_amt(as_trancode varchar(6),as_tranid varchar(10), al_lineno decimal(3,0), as_type char(1), as_rateoramt char(1))