How to find primary constraint column

How can i get the column names of the primary keys if i know the CONSTRAINT_NAME, and CONSTRAINT_TYPE = "P" in the user constraints of the table name.
thanx in advance
utsab

Hi,
Have you tried using the table USER_CONS_COLUMNS ?
This has information about columns in constraint definitions.
Hope this helps.
Sujatha.

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in my database ORA-1461 error occured
01461, 00000, "can bind a LONG value only for insert into a LONG column
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DESCRIBE
The description for tables, views, types and synonyms contains the following information:
each column's name
whether or not null values are allowed (NULL or NOT NULL) for each column
datatype of columns, for example, CHAR, DATE, LONG, LONGRAW, NUMBER, RAW, ROWID, VARCHAR2 (VARCHAR), or XMLType
precision of columns (and scale, if any, for a numeric column)
Extract of the link;
http://download.oracle.com/docs/cd/B19306_01/server.102/b14357/ch12019.htm#SQPUG040
Secondly with reference to the error;
Do not try to insert LONG datatypes into other types of columns.
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Use transaction SE11 to display the table. Put the cursor on the field you want to display the check table and click 'Foreign key' push button (a key with an bottom point arrow), then it will show the check table of the foreign of a field.
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How to know primary key column name form a table name in sql query

Suppose I only know the table name. How to get its primary key column name from the table name?
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Hi,
Can you suggest me best workaround/algorithm for below task:
(Oracle 10g, Solaris OS.)
Situation:
Table P has primary key column "Code", child tables F1, F2, ..., F15 reference with foreign key column "P_Code" column "P.Code", and we don't know which of the child tables has data for particular "P.Code" value.
Task:
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update P set
Code = 200
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update F1, F2, .., F15 set
P_code = 200
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Edited by: CharlesRoos on 28.12.2010 12:10

If you are looking for reusable and repetitive solution, then may be...
SQL> CREATE TABLE p (p_code NUMBER PRIMARY KEY);
Table created.
SQL> INSERT INTO p VALUES(100);
1 row created.
SQL> INSERT INTO p VALUES(300);
1 row created.
SQL> INSERT INTO p VALUES(500);
1 row created.
SQL> commit;
Commit complete.
SQL> CREATE TABLE F1 (p_code NUMBER REFERENCES p(p_code));
Table created.
SQL> CREATE TABLE F2 (p_code NUMBER REFERENCES p(p_code));
Table created.
SQL> CREATE TABLE F3 (p_code NUMBER REFERENCES p(p_code));
Table created.
SQL> INSERT INTO F1 VALUES(100);
1 row created.
SQL> INSERT INTO F3 VALUES(100);
1 row created.
SQL> INSERT INTO F2 VALUES(500);
1 row created.
SQL> commit;
Commit complete.
SQL> CREATE OR REPLACE PROCEDURE update_child_parent(pi_p_code_old NUMBER,
2                                                  pi_p_code_new NUMBER) IS
3    CURSOR table_to_update IS
4      SELECT table_name,
5             to_number(extractvalue(xmltype(DBMS_XMLGEN.getxml('SELECT count(*) c FROM ' ||
6                                                               table_name ||
7                                                               ' WHERE p_code=' ||
8                                                               pi_p_code_old)),
9                                    '/ROWSET/ROW/C')) cnt
10        FROM user_tables
11       WHERE table_name IN ('F1', 'F2', 'F3');
12
13 BEGIN
14    EXECUTE IMMEDIATE 'ALTER TABLE p DISABLE PRIMARY KEY CASCADE';
15    UPDATE p SET p_code = pi_p_code_new WHERE p_code = pi_p_code_old;
16    FOR i IN table_to_update LOOP
17      IF i.cnt > 0 THEN
18        EXECUTE IMMEDIATE 'UPDATE ' || i.table_name || ' SET p_code=' ||
19                          pi_p_code_new || ' WHERE p_code=' || pi_p_code_old;
20      END IF;
21    END LOOP;
22    EXECUTE IMMEDIATE 'ALTER TABLE p ENABLE VALIDATE PRIMARY KEY';
23 END update_child_parent;
24 /
Procedure created.
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PL/SQL procedure successfully completed.
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    P_CODE
       200
       300
       500
SQL> SELECT * FROM F1;
    P_CODE
       200
SQL> SELECT * FROM F2;
    P_CODE
       500
SQL> SELECT * FROM F3;
    P_CODE
       200
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INSERT INTO p VALUES(300)
ERROR at line 1:
ORA-00001: unique constraint (HR.SYS_C005931) violated
SQL> EXECUTE update_child_parent(500,900);
PL/SQL procedure successfully completed.
SQL> SELECT * FROM p;
    P_CODE
       200
       300
       900
SQL> SELECT * FROM F2;
    P_CODE
       900
SQL>

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I want to modify one primary key column, But TT reported error.
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import java.awt.GraphicsDevice;
import java.awt.GraphicsEnvironment;
import java.awt.GridLayout;
import java.awt.Rectangle;
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I'm getting the below error when attempt to update or insert a long string that is more than its defined length in the DB2. For example in table the column length is defined as 50, however from UI the data for that column is more than 50 chars.
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How you implement doesn't matter.
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As a start figure out how to find out using only db2 (docs and/or db2 forums.)

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There is one way:
Re: How to write the Query

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Well, there's the Data Dictionary you could query for foreign key columns/constraints.
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hi all ,
My requirement is as follows .
I am trying to add a record into temp_emp table inside plsql block ,after executing it i am getting ORA-01438: value larger than specified precision allowed for this column error .I want to find for which column the error is coming .
In the below example i clearly know that deptno column precision is 2 and i am inserting bigger value that is why i am getting error .
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SELECT * FROM V$VERSION
BANNER
Oracle Database 11g Enterprise Edition Release 11.2.0.2.0 - 64bit Production
PL/SQL Release 11.2.0.2.0 - Production
CORE    11.2.0.2.0    Production
TNS for Solaris: Version 11.2.0.2.0 - Production
NLSRTL Version 11.2.0.2.0 - Production
CREATE TABLE
temp_emp
empno NUMBER(4),
ename VARCHAR2(15),
job VARCHAR2(10),
deptno NUMBER(2)
DECLARE
   v_empno    NUMBER (4);
   v_ename    VARCHAR2 (15);
   v_job      VARCHAR2 (10);
   v_deptno   NUMBER (2);
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P Prakash

Oracle does not provide the column information in the error message and I don't know of any way to do so outside of developing something convoluted. For example:
SQL> DECLARE
2     te_row temp_emp%ROWTYPE;
3 BEGIN
4
5     te_row.empno := 1234;
6     te_row.ename := 'ABC';
7     te_row.job    := 'CLERK';
8     te_row.deptno := 1000;
9
10     INSERT INTO temp_emp
11          VALUES te_row;
12 END;
13 /
DECLARE
ERROR at line 1:
ORA-06502: PL/SQL: numeric or value error: number precision too large
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Edited by: Centinul on May 3, 2012 8:23 AM

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I am trying to impliment a load using JDBC wherein I read the table name, some column names, and associated
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insert record into table
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retrieve the already existing record
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update the already existing record in the database
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R.Parr
TemporalArts
608.833.4578
null

You can check the DBA_CONSTRAINTS view for that: http://download-uk.oracle.com/docs/cd/B19306_01/server.102/b14237/statviews_1037.htm#i1576022

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Thanks,
R

Tubby,
Since op asked for:
I have a need to find out a common column in all tables in database_*.it should be DBA_TAB_COLS. But what is more important, ALL_TAB_COLS holds not just table but also view and materialized view columns, so in general it should be:
select c.owner,
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from dba_tab_cols c,
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where o.owner = c.owner
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/SY.

How to find primary constraint column

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