ITECH blog

                   ADVANCE INDEXING                                   AND           QUERY PERFORMANCE TUNING  INTRODUCTION:                     Access Indexing is an powerful means for accessing elements of an array that us the flexible beyond specifying integers and slices along axes. For example, we can use advanced indexing to access all of they an negative-valued elements from x.                     Query performance tuning is the process of optimizing database queries to improve their speed and efficiency. This is crucial for ensuring that applications and systems that rely on databases can respond quickly and provide a good user experience.  ADVANCE INDEXING:              ...

Most Popular Databases In The World (2023) According to DB-Engines, in January 2023 the most popular systems on the db-engines.com web site were: 1. Oracle Database 2.MySQL 3.Microsoft SQL Server 4. PostgreSQL (free software) 5. IBM Db2 6. Microsoft Access 7. SQLite (free software) 8. MariaDB (free software) 9. Snowflake 10.Microsoft Azure SQL Database 11.Apache Hive (free software) 12.Teradata Vantage According to research company Gartner, in 2011, the five leading proprietary software relational database vendors by revenue were: Oracle (48.8%) IBM (20.2%)  Microsoft (17.0%) SAP including Sybase (4.6%) Teradata (3.7%) 1.Oracle  Oracle database, developed by Oracle Corporation, is the most popular relational database system (RDBMS). Not only Oracle is an RDBMS but also provides functionality for Cloud, Document Store, Graph DBMS, Key-value storage, BLOG, and PDF Storage. Recently. Oracle just announced an autonomous feature that allows databases to be intelligent and self-mana...