Oracle Error Ora 02293
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Ora-02290 Check Constraint Violated
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Ora-06512
helping each other. Join them; it only takes a minute: Sign up CHECK constraint in oracle for value check between the columns up vote 3 down vote favorite I have a table called Room and it has columns (ID, type, price...etc) I want to add constraints for both type and price like: if single (s), then price should not be greater than 50, if double (d), then price should not be greater than 100, and if family (f), then price should not be greater than 150 I tried to add it like this but it's giving me an error. Not sure how should I write this: ALTER TABLE ROOM ADD (CONSTRAINT CHK_PRICE CHECK ( (TYPE='S' AND PRICE <= 50) AND (TYPE='D' AND PRICE <=100) AND (TYPE='F' AND PRICE <= 150))); The error received is: SQL Error: ORA-02293: cannot validate (xxxx.CHK_PRICE) - check constraint violated 02293. 00000 - "cannot validate (%s.%s) - check constraint violated" *Cause: an alter table operation tried to validate a check constraint to populated table that had nocomplying values. *Action: Obvious sql oracle constraints share|improve this question edited Sep 15 '12 at 14:23 a_horse_with_no_name 187k24235312 asked Sep 15 '12 at 1:35 user1672735 28126 nop....all prices are below their required value –user1672735 Sep 15 '12 at 1:42 @user1672735 - how do you know that? The error clearly says that *Cause: an alter table operation tried to validate a check constraint to populated table that had nocomplying values.!! –Annjawn Sep 15 '12 at 2:47 add a comment| 3 Answers 3 active oldest votes up vote 9 down vote accepted It sounds like you need to OR together the three conditions, not AND them together. It is impossible for any row to satisfy all three criteria-- type cannot simultaneously have a value of S, D, and F. You probably want ALTER TABLE ROOM ADD (CONSTRAINT CHK_PRICE CHECK ( (TYPE='S' AND PRICE <= 50) OR -- <-- OR, not AND (TYPE='D' AND PRICE <= 100) OR -- <-- OR, not AND (TYPE='F' AND PRICE <= 150))); share|i
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and 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 6.2 million programmers, just like you, http://stackoverflow.com/questions/12433826/check-constraint-in-oracle-for-value-check-between-the-columns helping each other. Join them; it only takes a minute: Sign up SQL oracle add check constraint to an existing table up vote 2 down vote favorite Im using SQL/PL developer and I have a table named Appeal, that has 2 attributs OpenDate and CloseDate. And I want to add a constraint to ensure that open date will http://stackoverflow.com/questions/22782019/sql-oracle-add-check-constraint-to-an-existing-table be smaller than close date. I have a lot of records in this table. this is my code: alter table appeal add constraint Check_Dates check (OpenDate < CloseDate) and I get en error saying: ORA-02293: cannot validate (STSTEM.CHECK_DATES) - check constraint violated any ieads? Thanx sql oracle share|improve this question asked Apr 1 '14 at 9:39 Shmuli 457 add a comment| 2 Answers 2 active oldest votes up vote 3 down vote accepted Your constraint looks right, I have tested it: create table appeal ( OpenDate date, CloseDate date); alter table appeal add constraint Check_Dates check (OpenDate < CloseDate); insert into appeal values ( sysdate, sysdate - 1 ); And here the result: Schema Creation Failed: ORA-02290: check constraint (USER_4_44096.CHECK_DATES) violated Problem is than you have already rows with OpenDate < CloseDate values in your database. Fix it before create constraint. Look behavior changing sentences order: create table appeal ( OpenDate date, CloseDate date); insert into appeal values ( sysdate, sysdate - 1 ); alter table appeal add constraint Che
on an existing table and I got this ERROR at line 1: ORA-02293: cannot validate (MHO.T1_N100_NR_CK) - check constraint violated As far https://hourim.wordpress.com/2012/08/03/on-constraint-validation-use-of-exception-table/ as I have been confirmed by the client at whom I am working that the constraint should be valid and should be implemented, I decided then to find the culprit records. How http://thinkoracle.blogspot.com/2005/07/use-constraints.html would you proceed to find those records? Well I immediately though about validating the constraint against an exception table. If you want to do it then here below are the steps oracle error to follow: sql > create table t1 2 as select 3 rownum n1 4 ,mod(rownum,100) n100 5 ,date '2012-08-03' + (rownum-1)*5 nr 6 ,rpad('xx',10) padding 7 from dual 8 connect by level <= 1000; Table created. sql > update t1 set n100 = null, nr = null 2 where n1 = 25; 1 row updated. sql > alter table t1 add constraint t1_n100_nr_ck check oracle error ora (n100 is null and nr is not null 2 or n100 is not null and nr is null 3 or n100 is not null and nr is not null); alter table t1 add constraint t1_n100_nr_ck check (n100 is null and nr is not null * ERROR at line 1: ORA-02293: cannot validate (DXX.T1_N100_NR_CK) - check constraint violated Well, I need to create an exception table against which I will validate the constraint so that all rejected records will be inserted into this exception table during the constraint validation sql > create table exceptions 2 (row_id rowid, 3 owner varchar2(30), 4 table_name varchar2(30), 5 constraint varchar2(30)); Table created. sql > alter table t1 add constraint t1_n100_nr_ck check (n100 is null and nr is not null 2 or n100 is not null and nr is null 3 or n100 is not null and nr is not null) 4 validate exceptions into exceptions; alter table t1 add constraint t1_n100_nr_ck check (n100 is null and nr is not null * ERROR at line 1: ORA-02293: cannot validate (DXX.T1_N100_NR_CK) - check constraint violated sql > select * from exceptions; ROW_ID OWNER TABLE_NAME CO
of your data rather than rely on your applications, but I found a much better explanation in the Oracle Data Warehousing Guide. Read the section "Why Integrity Constraints are Useful in a Data Warehouse" in Chapter 7 on "Integrity Constraints."So instead, let me give you a just a really quick primer from my own experience, and a couple of treats.There are many types of constraints, including primary key, unique, referential (foreign key) and check constraints. I'll talk about check constraints.There are basically three ways to set up your table constraint. Check a reference (like Dan Morgan's http://www.psoug.org/reference/constraints.html) for more detail, but I will review them here.1. On the Same LineCREATE TABLE ConstraintTable ( MyNumber NUMBER(1) CHECK (MyNumber < 5));Using this method (only), you can't reference other columns in the table in your check constraint. Try it:CREATE TABLE ConstraintTable ( MyNumber1 NUMBER(1), MyNumber2 NUMBER(1) CHECK (MyNumber2 > MyNumber1));ORA-02438: Column check constraint cannot reference other columnsIt is also not obvious what name the constraint takes so it's more difficult to alter it later. But here is how:SQL> SELECT constraint_name 2 FROM user_constraints 3 WHERE table_name = 'CONSTRAINTTABLE';CONSTRAINT_NAME------------------------------SYS_C0075362. During table creationExample:CREATE TABLE ConstraintTable ( MyNumber NUMBER(1) CONSTRAINT c_my_number CHECK (MyNumber < 5));Doing it this way allows you to reference other columns in the table:SQL> CREATE TABLE ConstraintTable ( 2 MyNumber1 NUMBER(1), 3 MyNumber2 NUMBER(1), 4 CONSTRAINT c_my_number CHECK (MyNumber2 > MyNumber1) 5 );3. Alter tableYou can create your table as normal, and then add your constraints separately. I don't think there is any actual difference to Oracle between method #2 and #3.CREATE TABLE ConstraintTable (MyNumber Number(1));ALTER TABLE ConstraintTable ADD CONSTRAINT c_my_number check (MyNumbe