A(n) ____________________ installs and maintains operating system software and provides technical support to the programming staff.
Fill in the blank(s) with the appropriate word(s).
systems programmer
Computer Science & Information Technology
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Given the following relational schema and its functional dependencies:
 (a) Specify candidate keys and state the primary key. (b) Assuming that the relation is in first normal form (1NF), describe and illustrate the process of normalising the relational schema to second (2NF) and third (3NF) normal forms. Identify the primary and foreign keys in your third normal forms.
Computer Science & Information Technology
At most how many keys can be inserted without splitting the root node?
Consider the following B+ tree:
Computer Science & Information Technology