Results for "data science lifecycle"
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What are Data warehouse, Data Lake ,data mining and DataMart and MetaData
Why a Data Warehouse? (Data Warehouse ki zarurat kyu hoti hai?) Aaj ke time me companies ka data multiple sources me store hota hai, jaise: • SQL Server da…
SQL Server Database Shrink Maintenance
Database shrink ka matlab hai database file (ya log file) ke size ko chhota karna by removing unused space . Matlab, agar tumhare DB me data delete ho gaya h...
SQL Server Deadlock & Performance Monitoring Made Easy
Introduction In SQL Server, performance issues are very common. Sometimes queries run slow, sometimes users get stuck, and sometimes the system becomes unres...
Database Backup in SQL Server
In SQL Server, taking a database backup is crucial for data recovery and protection. Here’s a basic guide on how to perform a database backup and restore in...
Data Science: Basics, Lifecycle & Tools
Introduction Aaj ke digital world me data har jagah hai — chahe wo Instagram scrolling ho, online shopping ho, ya smart devices. Isi data ko samajh kar smart...
What is Data Ingestion and DataFrame API
Data ingestion : Data ingestion refers to the process of collecting, importing, and importing data from various sources into a system or storage environmen…
Table Partitioning in SQL Server
Table Partitioning एक advanced database concept है जिसका उपयोग बड़े tables को छोटे, manageable हिस्सों (partitions) में बाँटने के लिए किया जाता है। इससे perf...
Database trigger to audit (Transaction logs) all of the DDL changes made to the Database
Create table DatabaseLog: CREATE TABLE [dbo].[DatabaseLog]( [DatabaseLogID] [int] IDENTITY(1,1) NOT NULL, [PostTime] [datetim…
Schema and Handling Corrupt data in PySpark
A schema in PySpark (and generally in data processing) defines the structure of a DataFrame, including the names and data types of each column. It serves a…