Abstract: A table tennis assembly apparatus is provided. The table tennis assembly apparatus may provide a base substrate and an overlaying cutting substrate. Along at least one peripheral of the base substrate may be a bar panel and or one or more clamps. Each clamp is for urging a first force distributor to sandwich a table tennis blade, in a uniform manner, against a glued table tennis rubber supported by the base substrate. After a predetermined amount of time a user may swap the first force distributor for a smaller second force distributor, enabling the user to trim the table tennis rubber around the perimeter of the blade.

Abstract: A table tennis assembly apparatus is provided. The table tennis assembly apparatus may provide a base substrate and an overlaying cutting substrate. Along at least one peripheral of the base substrate may be a bar panel and or one or more clamps. Each clamp is for urging a first force distributor to sandwich a table tennis blade, in a uniform manner, against a glued table tennis rubber supported by the base substrate. After a predetermined amount of time a user may swap the first force distributor for a smaller second force distributor, enabling the user to trim the table tennis rubber around the perimeter of the blade.

Abstract: Techniques for making aggregated entries in a database table which aggregate information from other entries in tables in the database system. The techniques permit the aggregated entries to contain not only metric values aggregated from the other entries by techniques such as averaging in which the individual values are lost, but also sets of individual values from the other entries. One area of application for the techniques is the roll up tables used in the management systems for database management systems to reduce the size of historic information about events that have occurred in the database management system. Each roll up entry in a roll up table is an aggregated entry that contains information about some number of events. A roll up entry that uses the techniques contains a representation of a set whose values are the occurrence times of the events that are represented by the rollup record.

Abstract: An intelligent approach for collecting statistical information in information systems generally involves performing a set of administrative function steps within a “maintenance window” that is defined by one or more specified time periods. First, a set of administrative function steps to be performed are identified. The set of administrative function steps is prioritized to produce a set of prioritized administrative function steps. Then, the set of prioritized administrative function steps is performed during the maintenance window. Aspects and features of the invention include: identifying and prioritizing administrative function steps; estimated function times and maintenance window; failure prediction; environment recommendations; history information and learning techniques; saving state and context information; and user feedback.

Abstract: A workload reduction mechanism for index tuning is described that selects relevant database statements from a database workload, standardizes a format of the relevant database statements and reduces the formatted, relevant database statements into a representative set of database statements. These statements may then be provided to an index tuning mechanism.

Abstract: An intelligent approach for performing administrative functions generally involves performing a set of administrative function steps within a “maintenance window” that is defined by one or more specified time periods. First, a set of administrative function steps to be performed are identified. The set of administrative function steps is prioritized to produce a set of prioritized administrative function steps. Then, the set of prioritized administrative function steps is performed during the maintenance window. Aspects and features of the invention include: identifying and prioritizing administrative function steps; estimated function times and maintenance window; failure prediction; environment recommendations; history information and learning techniques; saving state and context information; and user feedback.

Abstract: A method and apparatus for identifying one or more schemas from which a Structured Query Language (SQL) statement may have been executed is provided. According to the method, to identify schemas from which a database command may have been executed a set of object references that are included in the database command is determined. From the set of object references, one or more ambiguous object references that are contained in the set of object references are identified. A set of one or more schemas that contain objects that correspond to each of the one or more ambiguous object references is then identified.

Abstract: An approach for automatically determining database tables that are best suited for index tuning involves analyzing query performance data that specifies an average amount of time required to execute a plurality of queries on the database tables. One or more particular queries are selected from the plurality of queries based upon the query performance data. Data tables required to process the one or more particular queries are selected for index tuning.

Abstract: A method for providing persistent, dynamic external control of rule-based decision making through inherited user defined rules (UDRs) within a computer controlled relational database management system (RDBMs). Within the novel system, objects are grouped together in a parent-child hierarchy where a child has one parent and each parent can have multiple children. Each object can have one or more pre-defined ("hardcoded") rules associated with it; these hardcoded rules are executed in a sequence to arrive at parameter values which, when applied, tune the database environment. The novel system provides a mechanism for creating UDRs which are associated with a particular object and used by particular hardcoded rules which process the particular object. For a given hardcoded rule, if a processed object does not have a UDR defined within, then a search is made up the object's ancestry (e.g.

Abstract: A method for non-recursive data driven parameter evaluation within an information management system (e.g., a relational database management system, RDBMS). Parameters are attributes within an RDBMS system whose value can be modified to influence the manner in which a database environment responds. Depending on the character of the data within a database environment or the hardware resources allocated to the database, the parameter values have a large influence on the performance efficiency of the database. For instance, a parameter value may influence the memory size of certain data storage areas within a database environment and, if set too small, can cause an inefficiently large amount of input/output accesses to occur as data is moved in and out of disk storage. Also, many parameters are data dependent on other parameters. The novel system presents an automated system for evaluating parameters using a non-recursive evaluation process.