Constraints Error Oracle
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Unique Constraint Violated Error In Oracle
DELETE DISTINCT EXISTS FROM GROUP BY HAVING IN INSERT INSERT ALL INTERSECT IS NOT NULL IS NULL JOIN check constraint violated error in oracle LIKE MINUS NOT OR ORDER BY PIVOT REGEXP_LIKE SELECT SUBQUERY TRUNCATE UNION UNION ALL UPDATE WHERE Oracle Advanced Oracle Cursors Oracle Exception Handling Oracle Foreign Keys Oracle Loops/Conditionals Oracle constraints oracle sql Transactions Oracle Triggers String/Char Functions Numeric/Math Functions Date/Time Functions Conversion Functions Analytic Functions Advanced Functions Oracle / PLSQL: ORA-00001 Learn the cause and how to resolve the ORA-00001 error message in Oracle. Description When you encounter an ORA-00001 error, the following error message will appear: ORA-00001: unique constraint (constraint_name) violated Cause You tried to execute an INSERT or UPDATE
Constraints Oracle 9i
statement that has created a duplicate value in a field restricted by a unique index. Resolution The option(s) to resolve this Oracle error are: Option #1 Drop the unique constraint. Option #2 Change the constraint to allow duplicate values. Option #3 Modify your SQL so that a duplicate value is not created. Note If you are not sure which unique constraint was violated, you can run the following SQL: SELECT DISTINCT table_name FROM all_indexes WHERE index_name = 'CONSTRAINT_NAME'; In our example (see picture above), our constraint name would be SYS_C002459 and we would execute the following SQL: SELECT DISTINCT table_name FROM all_indexes WHERE index_name = 'SYS_C002459'; This would return the name of the table whose unique constraint we violated. Share this page: Advertisement Back to top Home | About Us | Contact Us | Testimonials | Donate While using this site, you agree to have read and accepted our Terms of Service and Privacy Policy. We use advertisements to support this website and fund the development of new content. Copyright © 2003-2016 TechOnTheNet.com. All rights reserved.
» Constraints: How to resolve the duplicated primary key exceptions By sysdba-Oracle on Aug 27, 2009 After disabling the constraints, One can constraints oracle 10g enter invalid values into the tables as per the constraint condition. for disable constraints in oracle example, if you disable primary key constraint, it is possible to enter the duplicate value in primary key
Constraints In Oracle Sql Examples
column and commit the same data in table. till this you will not have the problem. Problem will arise if you try to enable the primary key. In presence https://www.techonthenet.com/oracle/errors/ora00001.php of duplicate values. If your table is small it easy to judge what rows have invalid values but this problem will become a junk when your table is big, say millions of row. ........... but not to worry oracle database has a process to identify those row which have some invalid data as per the constraints. while enabling https://blogs.oracle.com/sysdba/entry/constraints_how_to_resolve_the the constraint, we can detect all rows which may have some invalid data. Following is one demo on small sample table:Let us say, we have a table CON with primary key in ID column.SQL> conn hr/hr Connected. SQL> desc con Name Null? Type ----------------------------------------- -------- ----------------------- ID NOT NULL NUMBER NAME NOT NULL VARCHAR2(20) CITY VARCHAR2(10) SALARY NUMBER(10,2)SQL> select * from con; ID NAME CITY SALARY ---------- -------------------- ---------- ---------- 10 ABC B 1000 11 XYZ C 2000 13 DIFF 100 FFF 2000 12 SOME 2000 Let us disable the primary key, assuming constraint name of primary key in ID column is CON_PR. SQL> alter table con disable constraint con_pr;Table altered.SQL> select * from con; ID NAME CITY SALARY ---------- -------------------- ---------- ---------- 10 ABC B 1000 11 XYZ C 2000 12 FFF 2000 13 DIFFSQL> insert into con values(12,'SOME',NULL,2000);1 row created.SQL> commit;Commit complete.SQL> select * from con; ID NAME CITY SALARY ---------- -------------------- ---------- ---------- 10 ABC B 1000 11 XYZ C 2000 12 FFF 2000 13 DIFF 12 SOME 2000SQL> alter
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and http://stackoverflow.com/questions/440135/how-to-catch-a-unique-constraint-error-in-a-pl-sql-block policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only in oracle takes a minute: Sign up How to catch a unique constraint error in a PL/SQL block? up vote 30 down vote favorite 8 Say I have an Oracle PL/SQL block that inserts a record into a table and need to recover from a unique constraint error, like this: begin insert into some_table ('some', 'values'); exception when ... update some_table set value error in oracle = 'values' where key = 'some'; end; Is it possible to replace the ellipsis for something in order to catch an unique constraint error? oracle plsql share|improve this question asked Jan 13 '09 at 18:17 Thiago Arrais 18.8k62031 To use exceptions this way is a bit slow because raising exceptions takes quite a lot of time. Try merge. –tuinstoel Jan 13 '09 at 20:33 1 Agreed. But keep in mind that this example was just one of many possible use cases. The question really is "what is the id for unique constraint error?". That's why I voted William's answer up but accepted Ricardo's. –Thiago Arrais Jan 14 '09 at 11:34 2 Exceptions in PL/SQL code are not as expensive as in managed or high level languages (C#, Java). In a DB application the real "slowness" is caused by db access, a PL/SQL exception cost is insignificant in this context –Ricardo Villamil Jan 16 '09 at 16:25 add a comment| 3 Answers 3 active oldest votes up vote 51 down vote accepted EXCEPTION WHEN DUP_VAL_ON_INDEX THEN UPDATE share|