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Editorial Team
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Asked: 2026-06-11T06:33:31+00:00

I was trying to do something like auto-increment in Oracle 11g Express and SQL

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I was trying to do something like auto-increment in Oracle 11g Express and SQL Developer.
I know very little about Oracle and I am also new to triggers.

I tried running this, but I don’t know how to do it properly.

CREATE TABLE theschema.thetable
(id NUMBER PRIMARY KEY,
name VARCHAR2(30));

CREATE SEQUENCE theschema.test1_sequence
START WITH 1
INCREMENT BY 1;

create or replace trigger insert_nums
before insert on theschema.thetable
for each row
begin
select test1_sequence.nextval into :new.id from dual;
end;
/

When I try to create the trigger, I get a screen which asks me for some “binds”.
The dialog box has only one check box “null”. What does this mean and how do I make
a script that works properly?

Any precautions to take while doing this kind of “auto-increment” ?

Enter binds

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1 Answer

  1. Editorial Team

    It seems that SQL Developer thinks that you are running a plain DML (data manipulation) script, not a DDL (data definition). It also thinks that :new.id is a bindable variable.

    Why this happens, I don’t know; I can’t reproduce it in Oracle SQL Developer 2.1.

    Try to open a new SQL worksheet window in the theschema schema and execute a “whole” script (not a statement) by pressing F5 (not F9).

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