Progress OpenEdge
Member
Qn 1. Enumerate the layers of a 3-tier application:
Ans: Presentation/Application Layer, Business Logic Layer and Data Layer
Qn 2. What are (some of) the PROPATH's characteristics (check the appropriate entries)?
Qn3: Enumerate the main components of a database:
Ans: Fields, Tables, Index, Sequence
Qn4: What is a foreign key.
Ans: Well, I understand, but to give a defintion in the forum, I cheated a bit and here is the precise answer! I would not have worded like this though!
A foreign key is a column that references a primary key of another table. The foreign key value either is NULL or exists as the primary key value. The table that contains the foreign key is called the referencing table. The table that contains the primary key is called the referenced table.
Qn5: Enumerate the database-events that fire a trigger:
Ans: Create, Delete, Find, Write
These are the first 5 out of 30 questions! Feedback please!
Ans: Presentation/Application Layer, Business Logic Layer and Data Layer
Qn 2. What are (some of) the PROPATH's characteristics (check the appropriate entries)?
1. it is an OS environment variable -yes 2. .r files are automatically searched on the file system only in the folders specified (and in that order) - YES 3. it is read-only throughout a Progress session - NO | 4. it stores a (comma-separated) list of folders - YES 5. you cannot call a Progress source located outside the folders listed in PROPATH - YES 6. between sessions, PROPATH is stored in the .ini file - NO |
Qn4: What is a foreign key.
Ans: Well, I understand, but to give a defintion in the forum, I cheated a bit and here is the precise answer! I would not have worded like this though!
A foreign key is a column that references a primary key of another table. The foreign key value either is NULL or exists as the primary key value. The table that contains the foreign key is called the referencing table. The table that contains the primary key is called the referenced table.
Qn5: Enumerate the database-events that fire a trigger:
Ans: Create, Delete, Find, Write
These are the first 5 out of 30 questions! Feedback please!