Data quality is essential for any data analysis project, as it affects the accuracy, reliability, and validity of the results. SQL, or Structured Query Language, is a powerful tool that can help ...

SQL history. Before there was SQL, databases had tight, navigational programming interfaces, and typically were designed around a network schema called the CODASYL data model. CODASYL (Committee ...

Embracing SQL TRANSACTION can significantly enhance data precision. Transactions ensure that data changes are fully executed or not at all, protecting against the issues that arise from incomplete ...

Watch a replay of Andy Mendelsohn’s “Emerging Trends in Database” webcast here. For more on SQL and Big Data, check out the Oracle OpenWorld 2014 agenda, where there are dozens of sessions ...

SQL, the structured query language, is a programming language for communicating with databases. Variations on SQL are used by some of the most popular database tools in the world, including some ...

In SQL Server Change Data Capture, change activities in a table such as delete, insert, and update are easily available in a relational format. All the required inputs necessary to track changes made ...

Wide World Importers sample database v1.0 is the main sample for SQL Server 2016 and Azure SQL Database. It contains both an OLTP and an OLAP database. In-Memory OLTP Performance Demo v1.0 illustrates ...