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

Database Errors Interview Questions

Questions Answers Views Company eMail

PLS-00170: the SQL statement in an OPEN statement or FOR loop must be a SELECT

1 3155

PLS-00171: duplicate dedicated AGENT specification in subprogram expression

1 2744

PLS-00172: string literal too long

1 8902

PLS-00173: SPACE, TAB or RETURN are disallowed as alternative quote delimiters

1 3830

PLS-00201: identifier 'string' must be declared

1 4180

PLS-00202: type 'string' must be declared

1 3052

PLS-00203: function DECODE must be called with at least 3 non-boolean arguments

1 3332

PLS-00204: function or pseudo-column 'string' may be used inside a SQL statement only

1 6035

PLS-00205: Aggregate not allowed here

1 2944

PLS-00206: %%TYPE must be applied to a variable, column, field or attribute, not to "string"

1 5775

PLS-00207: identifier 'string', applied to implicit cursor SQL, is not a legal cursor attribute

2 5148

PLS-00208: identifier 'string' is not a legal cursor attribute

1 6406

PLS-00209: table 'string' is not in FROM clause

1 2839

PLS-00210: an OTHERS clause is required in this CASE statement

1 3202

PLS-00211: CASE labels or ranges must not be duplicated in different WHEN clauses

1 2827

Un-Answered Questions { Database Errors }

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

2662

Hi, I am trying to encode data from flatfile and then to decode the encoded data to original form. Procedures that I followed:- 1. Encoded the field 'A_ID' using AES_ENCRYPT(A_ID,'abd') in the expression transformation. The A_ID got encoded in the output table(oracle) 2. To decode this back I used AES_DECRYPT(A_ID,'abd'). But after executing the workflow, I am not getting any data in output. can anybody tell me how to decrypt the encoded data back to original form ??

1677

what is the instrument that used in Mechanical Energy??

2680

mount: mount to NFS server failed: System Error: Connection timed out

3666

ORA-26032: index string.string loading aborted after string keys

2105

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

2445

ORA-26095: unprocessed stream data exists

3561

How to view the error log for any specific instance?

2484

why we are using shift key in unix shell script

3164

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

2800

What is the use of NOLOCK locking hint?

1784

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

6744

what is new g/l functionality

2611

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

2696

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...

2739

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