Explain the use of Merge statement in oracle 11g
- 0 Answers
- 795 Views
- Infosys, I also Faced
- E-Mail Answers
Explain do view contain data?
Difference between varchar and varchar2 data types?
WHAT IS THE DIFFERENCE BETWEEN PRIMARY KEY(PK) CONSTRAINT AND UNIQUE KEY(UK) + NOT NULL(NN) CONSTRAINT ASSIGN TO A COLUMN ? INSTEAD OF ASSIGNING PK ,WE CAN ASSIGN UK + NN TO A COLUMN. WHAT ARE THE MARRITS AND DEMARITS BETWEEN THE ABOVE TWO?THE ABOVE TWO ARE SAME,THEY DON'T ALLOW DUPLICATE AS WELL AS NULL VALUES.
What is tns entry?
Q1:code to connect to sql server(database) through jdbc application. Q2:code to connect to Mysql(database) through jdbc application. Q3:code to connect to oracle(database) through jdbc application.
How oracle handles dead locks?
what is the use of system.effective.date variable in oracle?
How to get last row id?
two tables are there emp(eno,ename,sal,deptno),dept(deptno,dname).how form the query in deptno,ename,max(sal)
What are the common oracle dba tasks?
how to create a new database in oracle?
Other than making use of the statspack utility, what would you check when you are monitoring or running a health check on an Oracle 8i or 9i database?
Oracle General 
