Answer Posted / mapuka mueller

A unique key in sql signifies an attribute of an entity in a
table with the unique constraint, which simply implies that,
that a record(value) of that attribute can not be entered
more than once in that column (except null).
A further assignment of the primary key constraint to that
attribute (or a composite of two or more attributes(columns)
from values on the same row) makes it the unique identifier
of the record(row) in that table.

"It's sometimes hard to express what's in your mind but i
hope i tried"

WHAT IS THE DEFINITION OF DEFAULT CUSTOMER IN AR?

2149

---

State some uses of redo log files?

940

---

What is the difference between sharding and partitioning?

925

---

Define the SGA and: How you would configure SGA for a mid-sized OLTP environment? What is involved in tuning the SGA?

2215

---

What are the most common interview questions on ETL Testing for experience?

1074

---

what are actual and formal parameters?

1047

---

State the difference between a primary key and foreign key?

885

---

How to download oracle database 10g xe?

957

---

What is ordinary table in oracle?

1072

---

How to load a large xml file?

1001

---

Differentiate between post-database commit and post-form commit?

978

---

What are the parameters that we can pass through a stored procedure?

996

---

How to create a stored function in oracle?

1036

---

Which dictionary tables and/or views would you look at to diagnose a locking issue?

1848

---

How to grant create session privilege to a user in oracle?

945

---