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Studies at Faculty of Computers and Artificial Intelligence - Cairo University I'm studying data engineering with python @dataCamp
Sep 30, 2021 · 2 min read · Document Databases Schemaless Store data in documents and these documents are grouped into collection If you are familiar with relational databases we can say documents are analogous to rows and collections are analogous to table Documents Set of ...
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Sep 30, 2021 · 2 min read · Relational Databases vs NoSQL Relational DatabasesNoSQL Use tables/rows/columnsDon't Use tables/rows/columns Need a predefind schema / complicated to change structureSchema less / easy change structure Slow queries when joining multiple tabl...
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Jul 26, 2021 · 6 min read · MapReduce MapReduce is a programming model for data processing which written in various languages. MapReduce programs are inherently parallel, thus putting very large-scale data analysis into the hands of anyone with enough machines. We will introduc...
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Jul 18, 2021 · 5 min read · Meet Hadoop In pioneer days they used oxen for heavy pulling, and when one ox couldn’t budge a log, they didn’t try to grow a larger ox. We shouldn’t be trying for bigger computers, but for more systems of computers. — Grace Hopper Data! We live in...
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Jul 15, 2021 · 1 min read · Data Structures Structured Semi structured Unstructured Structured Data Easy to search and organized Consistent model, rows and columns Defined types Relational database Created and queried using SQL Can be grouped Semi structured Data Relati...
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