what is the difference between primary key and unique key? : Sql dba
No Answer is Posted For this Question
Be the First to Post Answer
Can we insert in view in sql?
is it necessary to write group by and order by clause together
How many commands are there in sql?
Difference between IN and EXISTS
What are the benefits of stored procedures?
Advantages and disadvantages of stored procedure?
explain primary keys and auto increment fields in mysql : sql dba
What is a pdo connection?
What are the events on which a database trigger can be based?
Does sql backup shrink transaction log?
What is the use of & in pl sql?
4. Select sum(A.salary) +sum(B.salary) as TOT_SAL from ( select LEVEL emp_id,level*100 salary,case when mod (level,2)=0then 2 else null end dept_id from dual connect by level<6 )A right outer join (select level emp_id ,level*200 salary ,case when mod (level,3)=0 then 2 else null end dept_id from dual connect by level<6)B On A.dept_id=B.dept_id And A.emp_id=B.emp-id;
Oracle (3259)
SQL Server (4518)
MS Access (429)
MySQL (1402)
Postgre (483)
Sybase (267)
DB Architecture (141)
DB Administration (291)
DB Development (113)
SQL PLSQL (3330)
MongoDB (502)
IBM Informix (50)
Neo4j (82)
InfluxDB (0)
Apache CouchDB (44)
Firebird (5)
Database Management (1411)
Databases AllOther (288)