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

Database Errors Interview Questions

Questions Answers Views Company eMail

ORA-25005: cannot CREATE INSTEAD OF trigger on a read-only view

1 3353

ORA-25006: cannot specify this column in UPDATE OF clause

1 4978

ORA-25007: functions or methods not allowed in WHEN clause

1 2843

ORA-25008: no implicit conversion to LOB datatype in instead-of trigger

1 3173

ORA-25009: Nested table clause allowed only for INSTEAD OF triggers

1 2699

ORA-25010: Invalid nested table column name in nested table clause

1 3343

ORA-25012: PARENT and NEW values cannot be identical

1 2937

ORA-25013: OLD and PARENT values cannot be identical

1 3300

ORA-25014: cannot change the value of a PARENT reference variable

1 3174

ORA-25015: cannot perform DML on this nested table view column

1 4125

ORA-25016: cannot specify column list for insert into nested table view column

1 2856

ORA-25017: cannot reference NEW ROWID for movable rows in before triggers

1 3813

ORA-25018: conflicting trigger string already exists

1 3621

ORA-25019: too much concurreny

1 2911

ORA-25020: renaming system triggers is not allowed

1 3700

Un-Answered Questions { Database Errors }

i have created ODBC through Data sources and tests completed sucessfully. when i am Trying to connect SQL Server through ODBC (ODBC :Oracle Open Client Adapter for ODBC 2.0.2.15.0 Microsoft SQL Server 09.00.3054) unable to Connect to SQL*Plus: Release 8.0.4.0.0. it is given following error-message . Error: ORA-03121: NO interface driver connected- function not performed.

2799

What is SCD (Slowly Changing Dimensions)? What are its types?

2662

How to view the error log for any specific instance?

2486

I entered the data in SQL toad version 9.0.1 in English and Arabic language but when i do the query i get the data in Arabic language with (??? question mark) ,please your support.

1649

[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

2722

What is the meaning of lock escalation and why/how to stop this?

2651

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

3383

ORA-26082: load of overlapping segments on table string.string is not allowed

1768

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...

2595

today's peformance is less than yesturday.it took 1 mint and today's performance is 7 mints.guys can anyone answer to mu question in sql

2448

How will you Handle Error in SQL SERVER 2008?

2401

write a database figure to implement the master detained relationship.

2934

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-26028: index string.string initially in unusable state

3862

What is live lock, deadlock and what is Lock escalation?

2432

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