User as variable

 Hello all,

Here is what I want to accomplish.

i have a statement that looks like this.

select count(*) into nolines from testdta.table;

I don't want to hardcode the user testdta, instead i want to use a variable. 

varuser := testdta

select count(*) into nolines from varuser.table;

How can I do this, what type should my variable be? Hope i was explicit enough.

Thanx,

Dan.