Ensure all primary keys, foreign keys
, and referential integrity constraints are clearly set.
In order to be generated, for every value of the primary key, the records that contain the same value in the foreign key
column must be founded.
Applying the Constraint Matcher to the Attributes of Gene and GeneProduct Gene Relation GeneProduct Relation Results Attribute Constraint Attribute Constraint GID Primary Key ID Primary Key Match Organism Foreign Key
Species Foreign Key
Match Name -- Full_Name -- Match Ref Foreign Key
DBxref Foreign Key
Match Table 7.
The primary key was the concept about which the students had the best knowledge, followed by the foreign key
, and finally the candidate key.
However, contrary to the schema constraint routine, in the integrity constraint routine the removal of a subtree (rooted at an update position p) triggers the subtree traversal for searching key and foreign key
values involved in the update.
If the relationship is "Indeterminate" instead of "One-To-Many," this means that you aren't connecting a primary key (one) to a foreign key
In addition, some tables will include a foreign key
to connect to the primary key in a related table.
The tool should be also aware of the unique MySQL syntax as well as such requirements as the necessity to generate indexes for foreign key
columns in child tables not required in other databases.
I hear the groans, already--no foreign key
should ever be deliberately configured with a type inconsistent with the primary key it points to, and a join such as this often points to a serious database design error.
Kodo JDO extracts foreign key
and primary key information from the database to build relationships between classes and inheritance trees, as appropriate.
to re-establish database-like foreign key
relationships between BDLC-connected lists or to connect external data to the Microsoft Office 365 or Microsoft SharePoint Online cloud.
and foreign key
technology patents issued or pending, the MicroSpring contact was recently selected for the R&D 100 Award by R&D Magazine, recognizing the most technologically significant new products in the world.