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GBlog
Three 90 Challenge: Bigger and Better
As we transit into the new phase, it's essential to fuel our inner drive for success. On popular demand, GeeksforGeeks is happy to announce that we are back with the Thre...
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Complement Naive Bayes (CNB) Algorithm
Naive Bayes algorithms are a group of very popular and commonly used Machine Learning algorithms used for classification. There are many different ways the Naive Bayes alg...
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Python
Machine Learning
Introduction of Home Area Network (HAN)
Home Area Network (HAN) is a network in a user's home where all the laptops, computers, smartphones, and other smart appliances and digital devices are connected into a ne...
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Computer Networks
Difference between Amazon Aurora and Amazon Redshift
1. Amazon Aurora :It is a fully managed relational database engine from Amazon Web Services that are compatible with MySQL and PostgreSQL. It is approx five times faster t...
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DBMS
Difference Between
Difference between Amazon DocumentDB and Amazon Redshift
1. Amazon DocumentDB :It is fast, scalable, highly available, and fully managed document database service that supports MongoDB workloads. It is currently available in Cal...
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DBMS
Difference Between
Difference between Amazon CloudSearch and Amazon Redshift
1. Amazon CloudSearch :It is a scalable cloud-based search service that forms part of Amazon Web Services. It is hosted search engine service by Amazon with data stored in...
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DBMS
Difference Between
Difference between Amazon DynamoDB and Amazon Redshift
1. Amazon DynamoDB :Amazon DynamoDB is a fully-managed database and supports both document and key-value data models. Features are as follows – fast and flexible NoSQL dat...
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DBMS
Difference Between
Difference between Amazon Neptune and Amazon Redshift
1. Amazon Neptune :Amazon Neptune is a fast, reliable graph database built for cloud product by Amazon.com. It is part of Amazon Web Services (AWS). It was announced on No...
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DBMS
Difference Between
Difference between ActivePivot and Amazon SimpleDB
1. ActivePivot :The ActivePivot is an in-memory DBMS combining transactional and analytical processing to handle aggregation of ever-changing data. This database uses a co...
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DBMS
Difference Between
Difference between 4D and Amazon SimpleDB
1. 4th Dimension (4D) :The 4th Dimension is a relational database management system and IDE developed by Laurent Ribardière. 4D can run as server so that multiple clients ...
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DBMS
Difference Between
Difference between Adabas and Amazon SimpleDB
1. Adabas :The Adabas stand for an adaptable database system. It was developed by Software AG to run on IBM mainframes. It was launched in 1971. It is OLTP – DBMS for main...
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DBMS
Difference Between
PostgreSQL - REINDEX
In postgreSQL, the REINDEX statement is used to recover corrupt indexes.An index can get corrupted due to software bugs or hardware failures.Syntax: REINDEX [ ( VERBOSE ) ...
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PostgreSQL
postgreSQL-indexes
PostgreSQL - Multicolumn Indexes
In PostgreSQL, the multicolumn indexes are indexes defined on more than one column of a table.You can create an index on more than one column of a table. This index is cal...
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PostgreSQL
postgreSQL-indexes
PostgreSQL - CREATE ROLE
PostgreSQL uses roles to represent user accounts. It doesn’t use the user concept like other database systems. Typically, roles can log in are called login roles. They are...
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PostgreSQL
postgreSQL-administration
PostgreSQL - GRANT
In PostgreSQL, the GRANT statement is used to grant privileges to a role to alter on database objects like tables, views, functions, etc.The following shows the syntax of ...
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PostgreSQL
postgreSQL-administration
PostgreSQL - TRUNCATE TABLE
In PostgreSQL, the TRUNCATE TABLE statement is used to instantly delete all content from tables. Though we have a DELETE statement to delete all data from a table that ha...
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PostgreSQL
postgreSQL-managing-table
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