摘要:
A method, apparatus and article of manufacture provide a user interface allowing user selection and arrangement of result fields selected, in one embodiment, from a logical model. In one embodiment, the user interface is a graphical user interface and comprises input cells for user-selected logical result fields. The cells are arranged to define a geometric relationship between logical result fields which dictates the combinatorial statement type by which the logical result fields in the cells are related in a query.
摘要:
Methods, systems, and articles of manufacture that may be used to create and share annotations for query components, such as query conditions, in an effort to share domain knowledge, are provided. The annotations may be created by users with particular domain knowledge and may contain information useful to other users when building queries including the annotated query components. An annotation may indicate a particular format or syntax for an associated query component. In some cases, a replacement to the associated query component is suggested.
摘要:
Methods, systems, and articles of manufacture that may be used to prevent sensitive information from being divulged in an annotation are provided. Upon creation, modification and/or retrieval of an annotation, a set of predefined security rules may be applied to the annotation, in an effort to detect sensitive information contained therein. Upon detecting sensitive information in an annotation, appropriate security measures may be taken, such as notifying a user creating, modifying, or retrieving the annotation (e.g., prompting the user to modify annotation to remove the sensitive information), preventing entry of the annotation, and/or notifying appropriate personnel in charge of security, such as a system administrator.
摘要:
A method, apparatus and article of manufacture provide a user interface allowing user selection and arrangement of result fields selected, in one embodiment, from a logical model. In one embodiment, the user interface is a graphical user interface and comprises input cells for user-selected logical result fields. The cells are arranged to define a geometric relationship between logical result fields which dictates the combinatorial statement type by which the logical result fields in the cells are related in a query.
摘要:
Methods, systems and articles of manufacture for managing parameterized queries and making them available to users based on associations between parameterized queries and fields belonging to result sets are provided. By associating fields with parameterized queries, a query manager can be configured to provide users with a contextually appropriate selection of parameterized queries that can be used to obtain data related to objects in a result set. The selection of parameterized queries may be provided to users via a variety of interfaces including graphic interfaces and plug-in components utilized by external applications.
摘要:
A method and apparatus for representing a continuum of data as a rolling column within a relational model is disclosed. Data from a continuous data source may be used to populate a rolling column. Metadata defining the rolling column specifies the correct portion of data from the continuum of data that should be used to populate the rolling column. Whenever data from the rolling column is included in a data access request, such as a database query, a database management system may be configured to update the rolling column, according to the metadata.
摘要:
A method, apparatus, and article of manufacture are provided to optimize the time and effort required to locate all data on a given entity that may span multiple data nodes in a distributed environment. For example, embodiments of the invention may be used to locate nodes within the distributed environment that store electronic healthcare records. A poll request from a first node to a second node may include electronic records existence data indicating data nodes known to have, or not have, records related to a given individual. This information is used to minimize the number of nodes that need to be polled to arrive at the complete aggregation of patient records that exist within a given set of nodes.
摘要:
Embodiments of the present invention provide methods for constructing a database abstraction model that includes logical fields that map to a logical table. The logical table is constructed using data extracted from multiple, differently formatted physical tables. The logical table allows logically related data stored in multiple databases to appear as data from a single table. Relationships between data stored in multiple, differently formatted databases are maintained and logical fields that include multiple access methods that map to the multiple databases are replaced with a single access method that maps to the logical table. Data relationships that are defined for the database abstraction model are modified to reflect the logical table.
摘要:
A method, system and article of manufacture for query processing and, more particularly, for determining that Cartesian Products will occur in query results without executing corresponding queries. One embodiment provides a method for detecting Cartesian Products in query results. The method comprises identifying, from a query against one or more databases, joins between different tables of the one or more databases. Without executing the query against the one or more databases, it is determined on the basis of cardinalities of the identified joins whether a Cartesian Product will occur in a query result corresponding to the query.
摘要:
A method, system and article of manufacture for query processing and, more particularly, for managing execution of a query against data in a database. One embodiment comprises receiving a query having (i) at least one result field configured to return data from at least one data record included with the database, and (ii) a query condition comprising a field and a query object associated with the field by an operator configured to select values for the field from the query object. The method further comprises determining whether the query object is configured to provide one or more valid values for the field. If the query object is not configured to provide one or more valid values for the field, the query object is transformed into a transformed query object that is configured to provide one or more valid values for the field. Then, the query is executed against the database.