⟩ Explain VDL (View Definition Language)?
It specifies user views and their mappings to the conceptual schema.
It specifies user views and their mappings to the conceptual schema.
What is SQL injection?
What are the data types allowed in a table?
What is the usage of SAVEPOINTS?
What is an integrity constraint?
Where the integrity constraints are stored in data dictionary?
How many LONG columns are allowed in a table? Is it possible to use LONG columns in WHERE clause or ORDER BY?
Difference between SUBSTR and INSTR?
What is CYCLE/NO CYCLE in a Sequence?
What are the advantages of VIEW?
Which of the following is not a feature of a cursor FOR loop?