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 3574

ORA-02255: obsolete 7.1.5

1 2878

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

1 5268

ORA-02257: maximum number of columns exceeded

1 8877

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

1 5989

ORA-02259: duplicate UNIQUE/PRIMARY KEY specifications

1 7163

ORA-02260: table can have only one primary key

1 7854

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

1 10956

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

1 15340

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

1 22781

ORA-02264: name already used by an existing constraint

1 9650

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

1 3043

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

1 4049

ORA-02267: column type incompatible with referenced column type

1 16561

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

1 8225

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Un-Answered Questions { Oracle Errors }

NZE-28890: Entrust Login Failed

1882

NZE-28868: Peer certificate chain check failed.

2803

ORA-26079: file "string" is not part of table string.string

1958

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

3385

IMP-00096: Warning: Skipping table "string"."string" because type synonym "string"."string" cannot be created

1620

ORA-26094: stream format error: input column overflow

2808

ORA-26095: unprocessed stream data exists

3578

IMP-00064: Definition of LOB was truncated by export

6415

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.............

2807

[ERROR] [main 11:01:20] (JCLLoggerAdapter.java:error:454) Unsuccessful: alter table user.CEN_USER_MASTER add constraint FKF4EDEDC3D0BAAE75 foreign key (ROLE_ID) references user.CEN_ROLE_MASTER [ERROR] [main 11:01:20] (JCLLoggerAdapter.java:error:454) ORA-02275: such a referential constraint already exists in the table

2731

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.

2870

ORA-16516: The current state is invalid for the attempted operation.

8820

ORA-26028: index string.string initially in unusable state

3864

ORA-16627: No standby databases support the overall protection mode.

3993

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

2733

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