How could I copy contraints from one database to another?

Question

Hi,
I have a specific problem.
I have taken a datadump and executed in another database. Some how the contraints were not copied.
So I created following script to genrated alter statement and then run the script in target database:
declare
cursor get_cons is
select distinct dc.table_name table_name, decode ( substr(dc.constraint_name,1,3), 'SYS', ' ', 'CONSTRAINT ' dc.constraint_name ) contraint, wmsys.wm_concat(ucc.column_name) over ( partition by dc.constraint_name order by dc.constraint_name ) cols
from user_constraints dc,
user_cons_columns ucc
where dc.table_name like '%'
and dc.constraint_type = 'P'
and dc.table_name = ucc.table_name
and dc.constraint_name = ucc.constraint_name;
lv_sql varchar2(2000);
begin
for i in get_cons
loop
lv_sql := 'ALTER TABLE '
I.TABLE_NAME
+' ADD ('+
i.contraint
+' PRIMARY KEY ( '+
I.COLS
+' )); ';+
dbms_output.put_line( lv_sql );
end loop;
end;
Is there a better way to do it?
Thank You,
Ranjeeth

Answer 1

Hi,
do u have idea about move data from development environment to production environment.
what is the simpleast way. suppose if we refer DATAPUMP or EXP/IMP. How to do it.
through EXP command i am exporting full database or specified tables. but problem is i am not able import which i exported tables.
can u give me the steps to how to import .DMP files through command prompt.
Thanks
Venkat.