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Cause: An internal error has occured.

Action: Contact Oracle Customer Support Services with the
error number.

Please add more information about this Error

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

2858

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ORA-07497: sdpri: cannot create trace file 'string'; errno = string.

2858

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

1665

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

3912

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RMAN-05017: no copy of datafile number found to recover

2465

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ORA-26084: direct path context already finished

1995

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[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

2772

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

3436

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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

2752

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IMP-00064: Definition of LOB was truncated by export

6465

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ORA-16626: failed to enable specified object

2272

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

6790

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

1999

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when i ran any workflow or session, getting below error: seesion task instance[s_xxx]: Execution terminated unexpecterdly

2298

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ORA-26030: index string.string had string partitions made unusable due to:

1986

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