⟩ Explain What are the uses of Oracle Rollback Segment?
Rollback Segments are used :
To generate read consistent database information during database recovery to rollback uncommitted transactions for users
Rollback Segments are used :
To generate read consistent database information during database recovery to rollback uncommitted transactions for users
Explain what is Channel? How to enable the parallel backups with RMAN?
Explain What is difference between SQL and SQL*PLUS?
What is is a cursor?
Explain What are various joins used while writing SUBQUERIES?
Explain Difference between database triggers and form triggers?
Explain me can the default values be assigned to actual parameters?
How to pass cursor variables in PL/SQL 2.2?
Explain What is difference between SUBSTR and INSTR?
Explain What is an UTL_FILE.What are different procedures and functions associated with it?
Explain Which is more faster - IN or EXISTS?