Lesson15 Data_Warehousing
... All natural keys are replaced with surrogate keys (branch Id instead of branch #). Means that every join between fact and dimension tables is based on surrogate (intelligence) keys, not natural keys. ...
... All natural keys are replaced with surrogate keys (branch Id instead of branch #). Means that every join between fact and dimension tables is based on surrogate (intelligence) keys, not natural keys. ...
Query and Analysis of Data on Electric Consumption
... reason below. HBase is between NoSQL and RDBMS. It retrieves data only by row key and the range of row key, and does not support coarse index. But the relational databases usually inquire data by their properties. HBase only supports transactions with a command line, but there is a lot of linking in ...
... reason below. HBase is between NoSQL and RDBMS. It retrieves data only by row key and the range of row key, and does not support coarse index. But the relational databases usually inquire data by their properties. HBase only supports transactions with a command line, but there is a lot of linking in ...
Ch03 Data Warehouse
... Business intelligence popularized Data mining and predictive modeling Open source software ...
... Business intelligence popularized Data mining and predictive modeling Open source software ...
Extract Transform Load (ETL) Offload Reduce Growing Data
... Ample Big Data provides solutions to solve the problems inherent in traditional data warehouse technologies by employing the NoSQL (Not Only SQL) database design, so that massive amounts of data can be stored and processed without the need to specify a schema when writing that information. NoSQL is ...
... Ample Big Data provides solutions to solve the problems inherent in traditional data warehouse technologies by employing the NoSQL (Not Only SQL) database design, so that massive amounts of data can be stored and processed without the need to specify a schema when writing that information. NoSQL is ...
SAP on Oracle Database 12c
... Client-Server Network Compression1) Less network load between application servers and database instance(s) ACO Table Compression: Support for > 255 columns ...
... Client-Server Network Compression1) Less network load between application servers and database instance(s) ACO Table Compression: Support for > 255 columns ...
A Comparative Study on Operational Database, Data Warehouse
... Rao and K.Raghavender as in [8], Data warehouse is a collection of heterogeneous data which can effectively and easily manage the data from multiple databases in a uniform fashion. In addition to data warehousing ETL, many technologies such as ERP (Enterprise Resource Planning), SCM,SAP, BI tools ar ...
... Rao and K.Raghavender as in [8], Data warehouse is a collection of heterogeneous data which can effectively and easily manage the data from multiple databases in a uniform fashion. In addition to data warehousing ETL, many technologies such as ERP (Enterprise Resource Planning), SCM,SAP, BI tools ar ...
Distributed Databases
... Failure of individual sites: The DDBMS should continue to operate with its running sites, if possible, when one or more individual sites fail. When a site recovers, its local database must be brought up to date with the rest of the sites before it rejoins the system. Failure of communication links: ...
... Failure of individual sites: The DDBMS should continue to operate with its running sites, if possible, when one or more individual sites fail. When a site recovers, its local database must be brought up to date with the rest of the sites before it rejoins the system. Failure of communication links: ...
ETL - GeekInterview.com
... ETL processes can involve considerable complexity, and significant operational problems can occur with improperly designed ETL systems. The range of data values or data quality in an operational system may exceed the expectations of designers at the time validation and transformation rules are speci ...
... ETL processes can involve considerable complexity, and significant operational problems can occur with improperly designed ETL systems. The range of data values or data quality in an operational system may exceed the expectations of designers at the time validation and transformation rules are speci ...
14. Lorel
... for each label. Using Vindex for comparison If type is string, do lookup in String Vindex If can convert to real the do lookup in Stringcoerced-to-real Vindex. If type is real or int, do almost the same thin ...
... for each label. Using Vindex for comparison If type is string, do lookup in String Vindex If can convert to real the do lookup in Stringcoerced-to-real Vindex. If type is real or int, do almost the same thin ...
