Question

My DB knowledge is quite limited and I am trying to delete a row with the following query:

DELETE FROM table
WHERE column in (select sequence.CURRVAL FROM DUAL);

This is used in a .sql to clean up the database after integration tests are run in Maven. I have Googled it but still haven’t found an answer for the delete statement to work. Any help is appreciated!

Answer 1

You can’t use a CURRVAL in a DELETE statement, as you can read here: http://www.orafaq.com/wiki/ORA-02287

But since you are using SQL scripts, you can do it like this in SQL*Plus:

SQL> create table t( id number);

Table created.

SQL> create sequence seq;

Sequence created.

SQL> insert into t (id) values (seq.nextval);

1 row created.

SQL> column i new_value curseqval
SQL> select seq.currval i from dual;

         I
----------
         1

1 row selected.

SQL> delete from t where id = &curseqval;
old   1: delete from t where id = &curseqval
new   1: delete from t where id =          1

1 row deleted.

Regards,
Rob.