⟩ What is Storage Manager?
It is a program module that provides the interface between the low-level data stored in database, application programs and queries submitted to the system.
It is a program module that provides the interface between the low-level data stored in database, application programs and queries submitted to the system.
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?
How to access the current value and next value from a sequence? Is it possible to access the current value in a session before accessing next value?