Results for "Triggers"
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Triggers in SQL server
A trigger in SQL is a special type of stored procedure that runs automatically when certain actions happen in a table or view . A trigger cannot be explici…
Application,Job,Stage,Task in Spark
In Apache Spark, the execution of a program is broken down into multiple levels of granularity: applications, jobs, stages, and tasks. Understanding these co...
SQL Server Database Metadata Automation – Complete Dynamic Schema Capture Framework
Managing database schema changes manually becomes difficult as projects grow. Tables change, columns get added, constraints evolve, and documentation quickly...
Pandas Data Manipulation: The Complete Guide (Part 2 — Indexing, GroupBy, Merge & Reshape)
Master Pandas data manipulation — loc/iloc, boolean filtering, GroupBy, merge/join, pivot tables, melt, string ops, and apply functions with real examples.
Spark Transformations, Actions and Lazy Evaluation and DAG.
Apache Spark RDD supports two types of Operations: Transformations Actions A Transformation is a function that produces new RDD from the existing RDDs but …
How to use Magic (virtual) table INSERTED and DELETED in SQL server
Magic Tables are virtual tables that are automatically created and maintained by SQL Server for each data modification operation performed on a table. They…