Compare sql & pl/sql
What is record type in pl sql?
Is sql difficult?
how to return query output in html format? : Sql dba
i hv 30 rows with date.ex:1month hav 4 weeks i want 1st day of the every week.write the qry for that.example jan has 4 weeks i need 1st dd for evry wk
What are types of joins?
How to maintain the history of code changes of pl/sql?
Why we use join in sql?
Why do we use subquery?
What is difference between inner join and cross join?
What are database links used for?
Is left join same as inner join?
What is primary and foreign key?