plsql - oracle dynamic sql using params with brackets as table name -


i have table in schema brackets in name (that's legacy, cannot modified):

create table "addresses"     ("id"                        number(*,0) ,     "fulladdress"                  nvarchar2(100),     "homenum"                      nvarchar2(25),     "streetname"                   nvarchar2(50) )

so want have ability update table via dynamic sql. that's how attempt that:

declare    sql_upd_statement varchar2(500) := '';   table_name varchar2(20) := '"addresses"';   column_name varchar2(20) := '"fulladdress"'; begin     --no rows updated, sample     sql_upd_statement := 'update stm.:1 set :2 = substr( :2, 2 ) :2 not null , :2 null';     dbms_output.put_line( sql_upd_statement );    execute immediate  sql_upd_statement using in table_name, column_name;  end;

please, tell me, possible reach want via dynamic sql? tried set 'table_name', 'column_name' values without brackets - still no luck.

schema object names cannot passed using bind variables, need literals.

sql_upd_statement := 'update stm.'||table_name||' set '||column_name||' = substr( '||column_name||', 2 ) '||column_name||' not null , '||column_name||' null';

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