1. A collection of tables to represent both data and the relationships among data, is known as
Entity relationship model
Relational Model
Object-based Data model
Semi structured data model
Answer
2. The designer can review the schema to ensure it meets all the functional requirements, at the stage
Conceptual design
Execution design
Controlling design
Initial Planning
Answer
3. In the database design, to characterize fully the data needs of the prospective database users, in the
Initial phase
Execution phase
Maintenance phase
Closure phase
Answer
4. The preface that converts the DML statements to normal procedure calls in the host language, is known as
DML pre-executor
DML executor
DML compiler
DML precompile
Answer
5. The problem of being unable to represent some information, can be solved by introducing
Pointers
Null values
0 value
Null pointer
Answer the 5 question
Answers
Answer:
1.A collection of tables to represent both data and relationships among data, is known as. Entity relationship model is known as a collection of tables to represent both data and relationship among data.
2.The designer can review the schema to ensure it meets all the functional requirements, at the stage is Conceptual design
3. In the database design, to characterize fully the data needs of the prospective database users, in the Initial phase
4.special character prefaces DML calls, and a preprocessor, called the DML precompiler, converts the DML statements to normal procedure calls in the host language.
5.The problem of being unable to represent some information, can be solved by introducing
ans:
Null values
Answer:
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