3
votes
1answer
165 views

Limiting database security

A number of texts signify that the most important aspects offered by a DBMS are availability, integrity and secrecy. As part of a homework assignment I have been tasked with mentioning attacks which ...
3
votes
2answers
205 views

Save history editable data RDBMS

I want to make application like testing system. Every question has one or many variant of answers (and one or many can be right). I apologize that tutors and students use my testing system. It means ...
0
votes
1answer
93 views

sql server-percentage calculation

Sample data : LINE_NO E_FIELD F_FIELD G_FIELD HSA_STATUS FAMILY CACHE_FAMILY Count 23053B 00000 00000 00000 S SUMMIT WER 43 23053B 00000 00000 00000 T ...