⟩ What is Buffer Manager?
It is a program module, which is responsible for fetching data from disk storage into main memory and deciding what data to be cache in memory.
It is a program module, which is responsible for fetching data from disk storage into main memory and deciding what data to be cache in memory.
What is referential integrity constraint?
What is difference between CHAR and VARCHAR2? What is the maximum SIZE allowed for each type?
What is SQL ROWID?
Explain CONNECT BY PRIOR?
What is ON DELETE CASCADE?
For which trigger timing can you reference the NEW and OLD qualifiers?
What is difference between TRUNCATE & DELETE?
If unique key constraint on DATE column is created, will it validate the rows that are inserted with SYSDATE?
When invoking this procedure, you encounter the error?
Explain UNION, MINUS, UNION ALL and INTERSECT?