8/4/2019 Synon References
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1. INF Information message
2. STS Status message
3. ERR Error message
4. EXC Execute message
5. RTV Retrieve message
18. Types of file relations?
FILE TO FILE FILE TO FIELD
Defined as Known by - key
Owned by - Key Qualified by - key
Refers to - ATTR Includes - ATTR
Extended by Has - ATTR
Defined as: Declaration that the file exist and created
implicitly by SYNON
Known by: Specifies that the field is a key field. There can be
more than one known by relation
Owned by: Defines a parent and child relationship, Eg., Order
header and order details (parent
key will be copied to the child)
Qualified by: This is a key relation used to qualify a file
identifier by one or more variable
factors. This is used to find out a close match (Eg., rate,
discount, data, etc.). If no redirection is
specified it is similar to KNOWN BY
Refers to: Specifies a file refers to another file (Foreign
key)
Includes: A file is to include all the fields that have been
declared in the structure file
Extended by: Declares a file to be an extension of a file
relation. It gives an association between
one to one or one to none. Will work only if it is OWNED BY in
the second file
Has: Declares a field to be present in a file
RELATION SEQUENCE AT THE TIME OR RESOLVING
Defined as, Owned by, Qualified by, Extended by, Refers to, Has,
Includes
Use of FOR TEXT: It is used to further clarify a relationship.
Owned by, Qualified by and Refers
to can only have the FOR TEXT. To prevent duplicate fields SYNON
uses the FOR TEXT if
present or the Surrogate number
