SQL Server to Oracle Converted Model missing users

Question

I am doing a migration from SQL Server to Oracle with about 100 users. The captured model seems to be correct and all of the users are there. But, when creating the Oracle Converted Model, not all of the users are being converted. On the first attempt, the Converted Model had only 21 users, and on the next attempt, the Converted Model only had 16 users. Does anyone know what could be causing this?

Answer 1

Oracle Database XE does not allow more than one instance per server.
To define a primary key correct syntax is:
Create table summary(
Field NOT NULL PRIMARY KEY,
Or:
PRIMARY KEY constraint tabla_PK (field)
To generate the value of the primary key you must create a sequence before or after creating the table:
Create Sequence summary_seq
Start with 1
Increment by 1
Nocycle;
You can use the sequence in INSERT INTO or through a trigger:
With Insert Into:
Insert into Summary
Values (summary_seq.nextval, valkor1, value2 ,...);
With a trigger:
Create or replace Trigger BI_summary
Before Insert on SUMMARY
For each row
Begin
Select summary_seq.nextval into campoPK
From dual;
End;