What is set transaction?
What is nvl?
What is minus?
What are the most important ddl statements in sql?
Explain the the delete statements in sql?
What is sql*plus?
What is character functions?
What is multiple columns?
What is rollback?
Explain the order of sql statement execution?
What is sql integrity?
What is break?
Can dml statements be used in pl/sql?
Can variables be used in sql statements?
How to revise and re-run the last sql command?