Answer / reddibasha

Transaction is a Set of DML operations with Commit /
Rollback. In SQL, transaction starts with DML command
(Except SELECT) and ends with Commit / Rollback(Implicit /
Explicit).

Answer / pavan_1981

set of related dml operations to perform a task are called
a transaction.

Answer / dawood

It starts with a first executable statement and ends when
commit or rollback statement occurs.

Answer / aravind

Transaction is a logical unit of work that comprises of one
or more sql statements.

Answer / ashok

All the DML operations between two COMMIT points can be called as a Transaction and Oracle server handles this as a single unit

what is self join and what is the requirement of self join? : Sql dba

0 Answers  

how to delete duplicate rows from a join tables(I have three tables on that join) how do you know which join is need to be used? The select statement I have is: SELECT gc_skill_type.skill_type, gc_area_tec.area, gc_technology.technology, gc_technology.id_technology, gc_area_tec.id_area_tec FROM gc_skill_type, gc_area_tec, gc_technology WHERE gc_area_tec.id_skill_type (+) = gc_skill_type.id_skill_type AND gc_technology.id_area_tec (+) = gc_area_tec.id_area_tec order by gc_skill_type.skill_type asc, gc_area_tec.area asc, gc_technology.technology asc

1 Answers   IAS,

what are the differences between char and nchar? : Sql dba

0 Answers  

Do we need to rebuild index after truncate?

0 Answers  

What is an exception in PL/SQL? What are the two types of exceptions?

0 Answers  

What is the difference between syntax error and runtime error?

0 Answers  

How do sql triggers work?

0 Answers  

What is the use of stored procedures?

0 Answers  

What is sql in java?

0 Answers  

What is clause in sql?

0 Answers  

Does postgresql run on the cloud?

0 Answers  

what is ref cursor in pl/sql?

3 Answers