SQL & PL/SQL :: Rebuild All Indexes For The Tables In Control Table?

I have one control table as below.I want to rebuild all indexes for the tables in control table.

The control table is having the following data.

SEQ_IDTABLENAME SCHEMA_NAME
1GEDIS_ORDER_FORM_STATES ALL
2GEDIS_NOTES ALL
3GEDIS_CARD_TYPE_AUDIT APRT
4FAX_HEADER OMS

In the control_table schema_name "ALL" means this is for 30 schemas(The table is existed in 30 schemas).Except for schema_name "ALL" ,the table is existed in the particular schema(The table is existed in the only one schema).

I tried the following code it is executing for all 30 schemas(ALL).But it is not executing for specific schemas.

CREATE OR REPLACE PROCEDURE Rebuilding_index
IS
l_sql VARCHAR2(4000);
CURSOR cur_tab_schema
IS
SELECT tablename,schema_name
FROM control_table3;

[code]....

This contains the 30 schema names.

SELECT owner_name FROM global_bu_mapping;