What are the differences between char and nchar in oracle?
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Explain the function of optimizer in oracle?
What is a user role in oracle?
What is backup in Oracle?
What is the difference between sharding and partitioning?
I have a parent program and a child program. I want to write a statement in Exception Block of the parent program so that when the statement in the exception block is executed, the control goes to the next statement in the parent block bypassing the child block.How do i do that?
what is Materialized view? What is a snapshot? what are the similarities and differences between Materialized views and snapshots?
How to experiment a data lock in oracle?
What is the difference between I and G in Oracle?
create one table to capture an employee details with a primary key.
What privilege is needed for a user to delete rows from tables in another schema?
Why do we need integrity constraints in a database?
Using the relations and the rules set out in the notes under each relation, write table create statements for the relations EMPLOYEE, FIRE and DESPATCH. You should aim to provide each constraint with a formal name, for example table_column_pk.