Abstract: Systems, methods, and computer-readable storage media for a multi-database query. A system receives, in a string format, a query. The system parses the query, the parsed query including: a first table identifier corresponding to a first table, and a first command. The first command is a second table identifier corresponding to a second table and a query keyword which, when executed, combines at least a portion of the first table and at least a portion of the second table. The system then determines at least one common index between the first table and the second table, and executes the parsed query using at least one common index, resulting in the selection of all or a subset of the first table decorated by values computed using the second table. The results are then displayed or otherwise used.

Abstract: Log entries are described that are stored in a log during a log session. In one implementation, a content provider includes a plurality of content servers. Each content server includes a processor and memory that is configured to maintain an application and a log for storing one or more log entries. The application is executable on the processor to process a request from a client. Each of the log entries include a log session identifier (ID) that references a log session that includes the request, data that describes an action performed in the processing of the request, and a log ordering ID representing the sequence in which each said log entry was stored in the log by the content server.

Abstract: Configuration settings are described which may be utilized to indicate a configuration of an application. In an exemplary implementation, a method includes validating a configuration setting of a first application for use with a second application. The configuration setting includes a first field and a first description of a first condition for the first field. The second application is composed of computer instructions that include an attribute. The attribute provides a second description of a second condition for a second field. If the first field corresponds to the second field, then the first description of the first condition is compared with the second description of the second condition to determine whether the first condition is met by the second condition. If the first condition is met, the configuration setting is determined to be valid for use with the second application.