Percona

DECEMBER 22, 2023

​​MongoDB is a schemaless database that is extremely flexible. MongoDB does not require any ALTER statement to modify the schema of a collection, like in a relational database. When you create a collection, you don’t have to specify a structure in advance, providing field names and data types.

Database 87

Database Open Source Testing Monitoring 87

Percona

MARCH 29, 2023

ALTER employees.salaries ENGINE=Innodb; One can also use pt-online schema change to recreate the table, which will not lock the table and have other benefits ( Using Percona Toolkit to Alter Database Tables Online: A Controlled Approach ) as well. sec) But once the data is misplaced, it does not return any rows.

Engineering 100

Engineering Open Source Database Scalability 100

Percona

JANUARY 5, 2023

In this blog, I will share a solution to remove this space and remove rows from tables in a few seconds regardless of the size of a table without causing any additional load on the database using table partitions. The first approach that comes to anyone’s mind for deleting the row is using a DELETE query in SQL. ibd -rw-r --. frm -rw-r --.

Traffic 59

Traffic Engineering Speed Storage 59

Adrian Cockcroft

JUNE 21, 2022

We had specializations in hardware, operating systems, databases, graphics, etc. Jim Mauro and Allan Packer visited on rotation from New Jersey, and Adelaide Australia, and worked out how to produce a database sizing guide for Oracle Financials, which I wrote up and published. Jim also joined the database performance team.

Tuning 52

Tuning Benchmarking Engineering C++ 52

The Netflix TechBlog

MARCH 25, 2019

The lineage data along with the enriched information is accessed through many interfaces using SQL against the warehouse and Gremlin and a REST Lineage Service against a graph database populated from the lineage data discussed earlier in this paragraph. Challenges We faced a diverse set of challenges spread across many layers in the system.

Infrastructure 219

Infrastructure Big Data Transportation Architecture 219

Highly Scalable

MARCH 10, 2015

Konstan, and John Riedl, 2001. VL02] The True Lift Model – A Novel Data Mining Approach to Response Modeling in Database Marketing, V. [SA00] Application of Dimensionality Reduction in Recommender System – A Case Study, B. Karypis, J. Konstan, J. SA01] Item-Based Collaborative Filtering Recommendation Algorithms, B.

Retail 152

Retail C++ Analytics Metrics 152