Help with using variable for name of table in PLSQL block...

I am trying to use a variable for the name of a table but getting errors ...i am sure I am close to the correct form here but something is wrong. I sure would appreciate some help!
DECLARE
ln_month Number;
ln_day Number;
ln_year Number;
ls_year VarChar2(4);
ls_prev_table VarChar2(30);
ls_cur_table VarChar2(30);
ln_prev_year Number;
ls_prev_year VarChar2(4);
ln_prev_month Number;
BEGIN
Select To_Number(To_Char(sysdate, 'MM')) into ln_month from dual;
Select To_Number(To_Char(sysdate, 'DD')) into ln_day from dual;
Select To_Number(To_Char(sysdate, 'YYYY')) into ln_year from dual;
If ln_month = 01 Then
ls_cur_table := "T_CPRS_FDW_CUR_JAN_ACTUALS";
ls_prev_table := "T_CPRS_FDW_PREV_DEC_ACTUALS";
ln_prev_year := ln_year - 1;
/***above is where I am trying to use variables for assignement to years and months tables***//// ln_prev_month := 12;
End If;
/*------MORE IF STATEMENTS FOR EACH MONTH ---OF --THE YEAR ...AND its the following 2 variable statements that the compiler doesnt like! */
If ln_day < 20 Then
Delete from :ls_prev_table;
INSERT INTO :ls_prev_table /*(STUFF TO BE INSERTED GOES HERE)*/
HELP PLEASE!
null

Hi,
The parser does not under variables directly in dml statements.u need to form a statement and the parse and execute the same...
so the soln is
Declare
lv_stmt varchar2(250);
Begin
lv_stmt := 'Delete from '| |ls_prev_table;
execute immediate lv_stmt;
-- Same is the case with the insert stmt--
End;
This should solve ur problem.
u could also give a direct call like
execute immediate 'Delete from '| |ls_prev_table ;
Note: This statement "execute immediate" holds good for oracle versions 8.x and above which makes the stmt very simple. For lower version u need to use the dbms_sql package to parse and execute the statement which has a series of statements for the same.
Kiran

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