How many anonymous blocks can be defined?
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When do we use group by clause in a sql query?
23. Display the client name for all clients who have placed an order where any order line has more than 3 items. Do not use a table join anywhere in your query.
What is tns service name?
What are cursor?where are they used?
What do you understand by database schema and what does it hold?
How to convert character types to numeric types?
How to handle a single quote in oracle sql?
How to run queries on external tables?
What is an Index ? How it is implemented in Oracle Database ?
What happens if you set the sga too low in oracle?
Tab A A B ------ 1 A 2 B 3 C Tab B A B ----- 4 D 5 E 6 F Generate the value into B table from A table. Only table A has the value. Write the SQL query to get B table value.
What are the different approaches used by Optimizer in choosing an execution plan ?