| Other SQL PLSQL Interview Questions |
| |
| Question | Asked @ | Answers |
| |
| What is a package ? What are the advantages of packages ? | Symphony | 1 |
| what is meant by DML? | HCL | 5 |
| What are the types of triggers ? | TCS | 4 |
| what is the command for user data type? | | 2 |
| What are different types of joins ? | BirlaSoft | 3 |
| What are the PL/SQL Statements used in cursor processing ? | | 2 |
| Name the tables where characteristics of Package, procedure
and functions are stored ? | | 3 |
| When would you denormalize? | Microsoft | 4 |
| how to create object in plsql | TCS | 1 |
| In a Distributed Database System Can we execute two queries
simultaneously ? Justify ? | | 1 |
| 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. | TCS | 4 |
| What are the advantages and disadvantages, compared to the
standard SQL and SQL*plus ? | | 1 |
| 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 | 1 |
| What is a trigger ? | BirlaSoft | 6 |
| can i write pl/sql code in a package | | 2 |
| how instead of triger is helpful for mutating tables errors
handlling ? | Oracle | 2 |
| What is difference between CHAR and VARCHAR2?What is the
maximum SIZE allowed for each type? | Saama-Tech | 2 |
| check whether all the emp numbers are indeed unique. | | 3 |
| what is definer rights invoke rights? | | 1 |
| Find out the 3rd highest salary? | BirlaSoft | 14 |
| |
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