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Data Warehouse & Data Mart difference?
Data Warehouse: A data warehouse is constructed by integrating data from multiple heterogeneous sources that support analytical reporting, structured and/or ad hoc queries, and decision making. Data Mart: A Data Mart is a condensed version of Data Warehouse and is designed for use by a specific depaRead more
Data Warehouse:
A data warehouse is constructed by integrating data from multiple heterogeneous sources that support analytical reporting, structured and/or ad hoc queries, and decision making.
Data Mart:
See lessA Data Mart is a condensed version of Data Warehouse and is designed for use by a specific department, unit or set of users in an organization
What is the difference between ETL and Pentaho ?
ETL - refers to Extract Transform & Load. It is a three stage process. Stage-1 (Extract): The staging layer stores raw data extracted from each of the disparate sources. Stage-2(Transform): The integration layer integrates the disparate data sets by transforming the data from the staging layer SRead more
ETL – refers to Extract Transform & Load. It is a three stage process.
Stage-1 (Extract): The staging layer stores raw data extracted from each of the disparate sources.
Stage-2(Transform): The integration layer integrates the disparate data sets by transforming the data from the staging layer
Stage-3 (Load): Storing the transformed data in a database (often referred as Data Warehouse)
Pentaho is a ETL tool developed by Hitachi Vantara.
In short, ETL is a process and Pentaho is a tool used in ETL process.
See lessExplain the differences between value type and reference type in C# ?
Value type Value types are generally (not always) stored on the stack and are passed by copying. The way in which a variable assignment works differs between reference and value types. Reference Type A value type is basically stored on the heap and passed by creating a reference. Reference: https://Read more
Value type
Value types are generally (not always) stored on the stack and are passed by copying.
The way in which a variable assignment works differs between reference and value types.
Reference Type
A value type is basically stored on the heap and passed by creating a reference.
Reference: https://www.c-sharpcorner.com/UploadFile/ca6c61/concepts-of-C-Sharp-value-type-and-reference-type/
See lessWhat is SQL?
SQL is a standard language for storing, manipulating and retrieving data in databases. http://w3schools.com/sql
SQL is a standard language for storing, manipulating and retrieving data in databases.
http://w3schools.com/sql
How does Codozzle work? What is the significance?
Codozzle is forum based community to motivate and help students to showcase their coding craftsmanship. On the other, we aim to empower the next generation of coders and problem solvers through this platform and the solutions, programs and community built around it. Its is a students based communityRead more
Codozzle is forum based community to motivate and help students to showcase their coding craftsmanship. On the other, we aim to empower the next generation of coders and problem solvers through this platform and the solutions, programs and community built around it.
Its is a students based community
Students get exposed to industry based case study
Students get internship opportunity with Nallas
Students get solutions for their quires then and there
And so on….
See lessPython seems to be easy but does it challenge in speed?
No, it lags in speed
No, it lags in speed
See lessPython is written in which language?
Python is written in C (actually the default implementation is called CPython)
Python is written in C (actually the default implementation is called CPython)
See less