___________ anomaly takes place when changing data in a row… ___________ anomaly takes place when changing data in a row forces changes to other rows (because of duplication) or results in invalid data. Read Details
The relational database model was originally proposed by: The relational database model was originally proposed by: Read Details
Columns used for joining tables in SQL statements can have e… Columns used for joining tables in SQL statements can have either the same or different names Read Details
SELECT, PROJECT, and RENAME are binary relational operations… SELECT, PROJECT, and RENAME are binary relational operations. Read Details
A row is SQL is equivalent to a relational model’s: A row is SQL is equivalent to a relational model’s: Read Details
Which one of these SQL statements is correct and will execut… Which one of these SQL statements is correct and will execute? Read Details
Majority of modern DBMS today automatically create indexing… Majority of modern DBMS today automatically create indexing on PK field Read Details
Which normal form adds the requirement that every non-key at… Which normal form adds the requirement that every non-key attribute must be fully dependent on the key? Read Details
A relation in BCNF is always in 4NF and 5 NF. A relation in BCNF is always in 4NF and 5 NF. Read Details
A table is in Boyce Codd Normal Form when if at least one de… A table is in Boyce Codd Normal Form when if at least one determinant is a candidate key. Read Details
