Problem in using String in Implicit Cursor

Question

Hi,
I am facing problem in using String in Implicit Cursor:
I have initialise
DECLARE
v_grant varchar2(4000);
begin
v_grant:='SELECT TABLE_NAME FROM DUMP_USER_TABLES WHERE TABLE_NAME LIKE ';
FOR obj IN (SELECT v_grant||'''BS%''' FROM dual) LOOP
V_REVOKE:='REVOKE ALL ON ' || 'obj.TABLE_NAME' || ' FROM ' || '''TEST''';
DBMS_OUTPUT.PUT_LINE('THE REVOKE STATEMENT IS'||V_REVOKE);
num := num + 1;
END LOOP;
END;
I am not getting the value from obj.TABLE_NAME its coming as 'obj.TABLE_NAME'
Kindly anyhelp will be needful for me

Answer 1

Besides from what Sybrand already pointed out clearly:
Your example doesn't run at all:
MHO%xe> DECLARE
  2  v_grant varchar2(4000);
  3  begin
  4  v_grant:='SELECT TABLE_NAME FROM DUMP_USER_TABLES WHERE TABLE_NAME LIKE ';
  5  FOR obj IN (SELECT v_grant||'''BS%''' FROM dual) LOOP
  6  V_REVOKE:='REVOKE ALL ON ' || 'obj.TABLE_NAME' || ' FROM ' || '''TEST''';
  7  DBMS_OUTPUT.PUT_LINE('THE REVOKE STATEMENT IS'||V_REVOKE);
  8  num := num + 1;
  9  END LOOP;
10  END;
11  /
V_REVOKE:='REVOKE ALL ON ' || 'obj.TABLE_NAME' || ' FROM ' || '''TEST''';
FOUT in regel 6:
.ORA-06550: line 6, column 1:
PLS-00201: identifier 'V_REVOKE' must be declared
ORA-06550: line 6, column 1:
PL/SQL: Statement ignored
ORA-06550: line 7, column 49:
PLS-00201: identifier 'V_REVOKE' must be declared
ORA-06550: line 7, column 1:
PL/SQL: Statement ignored
ORA-06550: line 8, column 1:
PLS-00201: identifier 'NUM' must be declared
ORA-06550: line 8, column 1:
PL/SQL: Statement ignoredI guess you need to read up on quoting strings properly and probably also dynamic SQL.
But:
WHAT are you trying to do anyway?
I cannot parse your code at all...so what is your requirement in human language?