What are the different pseudo commands? Explain in general?
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What are the predefined tablespaces in a database?
Which is better Oracle or MS SQL? Why?
how to get the index id?
you are sorting a table using "order by"(descending) clause of a column which contains a null value...whether that row containing null value will come first or last in the output??
Using the relations and the rules set out in the notes under each relation, write table create statements for the relations EMPLOYEE, FIRE and DESPATCH. You should aim to provide each constraint with a formal name, for example table_column_pk.
what is pragma?
What are the system predefined user roles?
What is the CAP theorem?
Which dictionary tables and/or views would you look at to diagnose a locking issue?
Database is hung. Old and new user connections alike hang on impact. What do you do? Your SYS SQLPLUS session IS able to connect.
What is the usage of synonyms?
what is shell?