How to edit a Constraint details

Question

The Object Browser does not allow you to review and to edit Constraints (foreign keys for example) details and to edit it except enabling/disabling and dropping.
How can I review the details of constrains in the Object Browser?
What SQL command should be used to query the constraints of a table.
Thank you!
Message was edited by:
MarcoPolo

Answer 1

Don't know how it is in object browser but in sql it looks as follows
SQL> create table persons (
  2  prs_name varchar2(40) not null,
  3  prs_surname varchar2(40) not null,
  4  prs_age number(3),
  5  constraint prs_pk primary key (prs_name, prs_surname));
Table created.
SQL> create table person_addresses (
  2  pad_prs_name varchar2(40) not null,
  3  pad_prs_surname varchar2(40) not null,
  4  pad_country varchar2(40) not null,
  5  pad_city varchar2(40),
  6  pad_region varchar2(40),
  7  constraint pad_ck1 check (pad_city is not null and pad_region is null
  8                         or pad_city is null and pad_region is not null),
  9  constraint pad_prs_fk foreign key (pad_prs_name, pad_prs_surname)
10             references persons (prs_name, prs_surname));
Table created.
SQL> select table_name, constraint_name, constraint_type from user_constraints
  2  where table_name in ('PERSONS', 'PERSON_ADDRESSES');
TABLE_NAME                     CONSTRAINT_NAME                C
PERSONS                        SYS_C0090483                   C
PERSONS                        SYS_C0090484                   C
PERSONS                        PRS_PK                         P
PERSON_ADDRESSES               SYS_C0090486                   C
PERSON_ADDRESSES               SYS_C0090487                   C
PERSON_ADDRESSES               SYS_C0090488                   C
PERSON_ADDRESSES               PAD_CK1                        C
PERSON_ADDRESSES               PAD_PRS_FK                     R
8 rows selected.
SQL> desc user_cons_columns
Name                                                  Null?    Type
OWNER                                                 NOT NULL VARCHAR2(30)
CONSTRAINT_NAME                                       NOT NULL VARCHAR2(30)
TABLE_NAME                                            NOT NULL VARCHAR2(30)
COLUMN_NAME                                                    VARCHAR2(4000)
POSITION                                                       NUMBER
SQL> select table_name, constraint_name, column_name
  2  from user_cons_columns
  3  where table_name in ('PERSONS', 'PERSON_ADDRESSES')
  4  order by table_name, constraint_name, position;
TABLE_NAME                     CONSTRAINT_NAME
COLUMN_NAME
PERSON_ADDRESSES               PAD_CK1
PAD_CITY
PERSON_ADDRESSES               PAD_CK1
PAD_REGION
PERSON_ADDRESSES               PAD_PRS_FK
PAD_PRS_NAME
PERSON_ADDRESSES               PAD_PRS_FK
PAD_PRS_SURNAME
PERSON_ADDRESSES               SYS_C0090486
PAD_PRS_NAME
PERSON_ADDRESSES               SYS_C0090487
PAD_PRS_SURNAME
PERSON_ADDRESSES               SYS_C0090488
PAD_COUNTRY
PERSONS                        PRS_PK
PRS_NAME
PERSONS                        PRS_PK
PRS_SURNAME
PERSONS                        SYS_C0090483
PRS_NAME
PERSONS                        SYS_C0090484
PRS_SURNAME
11 rows selected.And you can always get info about data dictionary either from dictionary itself or reference manual.
SQL> select * from dict where table_name like '%CONS%';
TABLE_NAME
COMMENTS
USER_CONSTRAINTS
Constraint definitions on user's own tables
<other rows skipped>Gints Plivna
http://www.gplivna.eu
P.S. I'm absolutely not advising to create tables with such stupid structure :)