The diagram shows the processing of a query in the database. When a query is submitted it is received by the compiler that scans the query and divides it into tokens. After that the tokens are verified by the p
Kang S,Moon S.Global Query Management in Heterogeneous Distributed Database System.Microprocessing and Micro-programming. 1993Kang, S., Moon, S.: Global query management in heterogeneous distributed database systems. Mi- croproces. Microprogram. 38, 377-384 (1993)...
Once the metadata is stored in the SQL Access Advisor, the database administrator can optimize the database objects and improve query performance. When processing queries, Oracle Database routes queries to tables that hold materialized views when possible. Because these tables of materialized views ...
CREATE OR REPLACE PROCEDURE dynamic_proc AS staff_id NUMBER(6) := 200; first_name VARCHAR2(20); salary NUMBER(8,2); BEGIN EXECUTE IMMEDIATE 'select first_name, salary from staffs where staff_id = :1' INTO first_name, salary USING IN staff_id; dbms_output.put_line(first_name || '...
Network Diagram Service Network Diagram Service Append Features Apply Layout Apply Template Layouts Clear Diagram Element Info Clear Flags Create Diagram From Features Create Diagram From Trace Locations Delete Diagram Diagram Diagram Dataset Diagram Map Diagram Templates Dynamic Layers Export Extend Find Diag...
As mentioned in Sect. 2, federated query processing is a way to query over the combination of such datasets, without having to download the complete datasets and querying over them locally. The TPF client supports fed- erated query evaluation over its single supported interface type, i.e., ...
Transactional consistency is provided as a part of the overall transaction processing capability of the DBMS. There are many complicated implementation features used to implement transactional processing and transactional consistency. Among them is the generation and use of transactional metadata to compute ...
During the probe phase, the DBMS, for each row in a large data set, performs a) a hash value computation on a join key value(s) of the row, b) matching the hash value with the hash table of the build phase, c) retrieves the rows of the build-side table corresponding to the ...
www.dbmsmag.com/9701d161.html, as cached in www.google.com.* www.cai.com/products/db2/plananalyzer/factsheet.htm. Attorney, Agent or Firm: Microsoft Technology Licensing, LLC Claims: What is claimed is: 1. A computer system, the computer system including a processing unit, a user input...
in the main memory and to external storage. Various approaches to solving this problem can include restricting the data to be read from external storage to a minimum and fastest possible access, avoiding input and output accesses by holding and processing data in the main memory, and parallel ...