What is record variable?
What is varchar used for?
how to retrieve only duplicate values in a table
Does truncate release storage space?
How many sql statements are used? Define them.
Types of indexes. What is the default key created when a primary key is created in a table ?
how many ways to get the current time? : Sql dba
Explain dml and ddl?
When to use inner join and left join?
Show the cursor attributes of pl/sql.
Why is normalization important?
Is there any restriction on the use of union in embedded sql?
What is bulk compiling in pl/sql.?