SQL PLSQL Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

SQL PLSQL Interview Questions

Questions Answers Views Company eMail

How can we overcome recursive triggers in SQL?

iFlex,

1 9422

how to create user in sql and how to set password for that?

3 10176

what eliminate duplicate without using roenum and not

Matrix,

5 10725

what are the differences among these table level lock modes - IN SHARE MODE, IN SHARE UPDATE MODE, IN EXCLUSIVE MODE ?

HCL,

3 11327

How One can easily select all even, odd, or Nth rows from a table using SQL queries?

4 20198

What is oracle ? why we should go for oracle database instead of diffrent databases available in the industry.

Polaris,

5 11691

What is a REF CURSOR? Compare strong and week ref cursor types.

6 28684

I have one Excel file with 1,50,000 Records. Now I need to load that whole file into Oracle Database with same columns in Excel sheet . I need PLSQL Procedure or used by SQL PLUS

Polaris,

7 17553

GLOBAL TEMPORARY TABLE over Views in advantages insolving mutating error?

Virtusa,

3050

write a qurey for finding the length of the sting.

Infosys, TCS,

6 14990

how to create a database in oracle?

3 7070

In a package if we have 10 procedures or functions,How to know which will execute first?

Sollet Soft,

1 7157

Create table emp (id number(9), name varchar2(20),salary number(9,2)); The table has 100 records after table created.Now i nee to change id's Datatype is to be Varchar2(15). now Alter table emp modify(id varchar2(15),name varchar2(20), salary number(9,2)); Whether it will work or returns error? post answer with explanation.

Oracle, TCS,

13 22482

How many database objects (trigger, packages, sequence etc) uses a particular field in a given table. For ex: I want to know how many database object uses the ATTRIBUTE1 in the PO_VENDORS table. What query will give me the result showing the database object name(package, trigger etc), field_name used (in this case ATTRIBUTE1) and table_name (in this case PO_VENDORS).

IBM,

2 8879

what is the use of anchoring object? what r the difference between anchoring object & enclosing object? can any one tell me all the details?

2488

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Un-Answered Questions { SQL PLSQL }

Is sqlite good enough for production?

992

How can we solve sql error: ora-00904: invalid identifier?

1246

how to convert character strings to dates? : Sql dba

1060

Is sql a dbms?

1011

Is sql database free?

975

What is the basic form of sql query?

943

What are the features of pl sql?

1067

What are the different sql languages?

1035

What are the types of keys?

996

Is pl sql still used?

975

Explain what is sql?

1115

What is an implicit commit?

1054

What are local and global variables and their differences?

1090

What is the use of primary key?

1008

What is the most restrictive isolation level? : Transact sql

1085

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