Oracle Errors Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Oracle Errors Interview Questions

Questions Answers Views Company eMail

ORA-02254: DEFAULT not allowed here

1 3564

ORA-02255: obsolete 7.1.5

1 2856

ORA-02256: number of referencing columns must match referenced columns

1 5254

ORA-02257: maximum number of columns exceeded

1 8857

ORA-02258: duplicate or conflicting NULL and/or NOT NULL specifications

1 5975

ORA-02259: duplicate UNIQUE/PRIMARY KEY specifications

1 7150

ORA-02260: table can have only one primary key

1 7849

ORA-02261: such unique or primary key already exists in the table

1 10949

ORA-02262: ORA-string occurs while type-checking column default value expression

1 15323

ORA-02263: need to specify the datatype for this column

1 22770

ORA-02264: name already used by an existing constraint

1 9642

ORA-02265: cannot derive the datatype of the referencing column

1 3028

ORA-02266: unique/primary keys in table referenced by enabled foreign keys

1 4043

ORA-02267: column type incompatible with referenced column type

1 16543

ORA-02268: referenced table does not have a primary key

1 8222

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Un-Answered Questions { Oracle Errors }

ORA-26084: direct path context already finished

1946

ORA-26027: unique index string.string partition string initially in unusable state

6742

ORA-26094: stream format error: input column overflow

2794

When i am connect database through toad,one error occured. ORA-12514: TNS:listener does not currently know of service requested in connect descriptor. plz help me thanks advance.............

2797

if the lengths of two wires are same and the area of cross sections is 4:7 then what will be the ratio of current passing through these wires

2694

NZE-28868: Peer certificate chain check failed.

2797

Hi guys, I have four tables those are emp,dept,eliminate and uneliminate. i wrote small cursor..when i run, it display one error (ORA-01403 nodata found)... The query is: Declare cursor c1 is select e.ename emp_name from emp e,dept d where e.deptno=d.deptno group by deptno; r1 c1%rowtype; test_emp varchar2(200); begin for r1 in c1 loop begin select eliminate_emp into test_emp from eliminate t,uneliminate ut where t.number=ut.number and t.deptno=e.deptno and rownum<1; end; dbms_output.put_line(r1.emp_name); end loop; end; Thanks...

2737

In my project I am using star schema and only diimension tables are loaded and not fact tables any one can help me why it is happening? Plase guide me.

2868

invalid quantity specification negative quantity are not allowed for this item please check this item definition quantity

3381

NZE-28890: Entrust Login Failed

1872

ORA-26029: index string.string partition string initially in unusable state

2152

How to resolve QSM-01108 error. I have no OR conditions in my query, but do have 9 IN conditions. The error says the max limit is 2 while I have 257 number of disjuncts. However, if I remove even a single IN condition, the query is rewritten. I cannot change my query. How can I resolve this issue?

2719

IMP-00063: Warning: Skipping table "string"."string" because object type "string"."string" cannot be created or has different identifier

2728

ORA-26095: unprocessed stream data exists

3558

IMP-00070: Lob definitions in dump file are inconsistent with database.

1741

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