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AI
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- TFJS Tutorial
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- Ex1 Intro
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- Ex2 Intro
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- Graph Intro
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- Graph Google
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- History of Intelligence
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- Job Replacements
- Theory of Mind
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AngularJS
- AngularJS HOME
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Arduino Projects
- How HC-SR04 Ultrasonic Sensor Works & Interface It With Arduino
- How HC-SR501 PIR Sensor Works & Interface It With Arduino
- Interfacing DHT11 and DHT22 Sensors with Arduino
- Interface DHT11 Module With Arduino
- Interfacing AM2320 Temperature & Humidity Sensor with Arduino
- Interfacing LM35 Temperature Sensor with Arduino
- How MQ2 Gas/Smoke Sensor Works? & Interface it with Arduino
- How MQ3 Alcohol Sensor Works? & Interface it with Arduino
- How RCWL-0516 Microwave Radar Motion Sensor Works & Interface It With Arduino
- Interfacing DS18B20 1-Wire Digital Temperature Sensor with Arduino
- Interfacing Multiple DS18B20 Digital Temperature Sensors with Arduino
- Interfacing MAX6675 Thermocouple Module with Arduino
- Interfacing SHT31 Temperature & Humidity Sensor with Arduino
- Interfacing HTU21D Temperature & Humidity Sensor with Arduino
- Interfacing Reed Switch with Arduino
- Interfacing Ball Tilt Switch Sensor with Arduino
- Interfacing Soil NPK Sensor with Arduino
- How Soil Moisture Sensor Works and Interface it with Arduino
- Interfacing Capacitive Soil Moisture Sensor with Arduino
- Interfacing MAX4466 Microphone Amplifier Module with Arduino
- Interface Sound Sensor with Arduino and Control Devices With a Clap
- How Water Level Sensor Works and Interface it with Arduino
- How Rain Sensor Works and Interface it with Arduino
- Interfacing Force Sensing Resistor (FSR) with Arduino
- Interfacing Flex Sensor with Arduino
- Monitor the Heart Rate using Pulse Sensor and Arduino
- Interfacing MAX30100 Pulse Oximeter and Heart Rate Sensor with Arduino
- Interfacing MAX30102 Pulse Oximeter and Heart Rate Sensor with Arduino
- Interface BMP180 Barometric Pressure & Temperature Sensor with Arduino
- Interface BME280 Temperature, Humidity & Pressure Sensor with Arduino
- Interface BME680 Environmental Sensor with Arduino
- Interfacing BMP388 Barometric Pressure Sensor (Altimeter) with Arduino
- Interfacing MS5611 Barometric Pressure Sensor with Arduino
- Interfacing TMP36 Temperature Sensor with Arduino
- Interface MLX90614 Non-contact Infrared Temperature Sensor with Arduino
- What is RFID? How It Works? Interface RC522 RFID Module with Arduino
- Interfacing TCS230/TCS3200 Color Sensor with Arduino
- How Accelerometer works? Interface ADXL335 with Arduino
- Interface MPU6050 Accelerometer and Gyroscope Sensor with Arduino
- Interfacing TFMini-S LiDAR Sensor with Arduino
- Interface DS1307 RTC Module with Arduino
- Interface DS3231 Precision RTC Module with Arduino
- Interface One Channel Relay Module with Arduino
- Interface Two Channel Relay Module with Arduino
- Interface 4×3 & 4×4 Membrane Keypad with Arduino
- How Rotary Encoder Works and Interface It with Arduino
- How 74HC595 Shift Register Works & Interface it with Arduino
- How 2-Axis Joystick Works & Interface with Arduino + Processing
ASP
- ASP HOME
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- Razor Intro
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- ASP Intro
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- ADO Intro
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AWS
- AWS HOME
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- AWS First Recap
- AWS Infrastructure
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- AWS Second Recap
- AWS Networking
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- AWS Global Networking
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- AWS Storage and DBs
- AWS Instance Stores
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- AWS EBS vs S3
- AWS Elastic File System
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- AWS DynamoDB vs RDS
- AWS Redshift
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- AWS Fourth Recap
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Basic Electronics
- Semiconductor Basics
- PN Junction Diode
- The Half-Wave Rectifier
- The Full-Wave Rectifier
- The Full-Wave Bridge Rectifier
- The Zener Diode
- Light Emitting Diode (LED)
C
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C#
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C++
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- C++ Strings
- Strings
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- if
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- Multidimensional Arrays
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- C++ Function Overloading
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- C++ Classes/Objects
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CSS
- CSS HOME
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- RWD Intro
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- CSS Browser Support
Cyber Security
- CS HOME
- CS Cyber Crime
- CS Money Making Threats
- CS Dark Web
- CS Networking Basics
- CS Network Layer
- CS Network Transport
- CS Firewalls
- CS Web Applications
- CS Mapping &Port Scanning
- CS Network Attacks
- CS Web Application Attacks
- CS WIFI Attacks
- CS Penetration Testing &Social Engineering
- CS Passwords
- CS Security Operations
- CS Incident Response
- CS Quiz
- CS Certificate
Data Science
- DS HOME
- DS Introduction
- DS What is Data
- DS Database Table
- DS Python
- DS DataFrame
- DS Functions
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- DS Linear Functions
- DS Plotting Functions
- DS Slope and Intercept
- Stat Introduction
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- DS Linear Regression
- DS Regression Table
- DS Regression Info
- DS Regression Coefficients
- DS Regression P-Value
- DS Regression R-Squared
- DS Linear Regression Case
- DS Bootcamp
DBaaS
- Database as a Service
DBReplication
- CSV-Database
- Manage Database In Dbreplication.In
- Set Backup Scheduled in Dbreplication.In
- Set Replication Scheduled in Dbreplication.In
Django
- Django Home
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- Django Get Started
- Create Virtual Environment
- Install Django
- Django Create Project
- Django Create App
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- Django Update Model
- Prepare Template and View
- Add Link to Details
- Add Master Template
- Add Main Index Page
- Django 404 Template
- Add Test View
- Django Admin
- Create User
- Include Models
- Set List Display
- Update Members
- Add Members
- Delete Members
- Django Variables
- Django Tags
- Django If Else
- Django For Loop
- Django Comment
- Django Include
- QuerySet Introduction
- QuerySet Get
- QuerySet Filter
- QuerySet Order By
- Add Static Files
- Install WhiteNoise
- Collect Static Files
- Add Global Static Files
- Add Styles to the Project
- PostgreSQL Intro
- Create AWS Account
- Create Database in RDS
- Connect to Database
- Add Members
- Elastic Beanstalk (EB)
- Create requirements.txt
- Create django.config
- Create .zip File
- Deploy with EB
- Update Project
- Add Slug Field
- Add Bootstrap 5
- Template Tag Reference
- Filter Reference
- Field lookups Reference
- Django Compiler
- Django Exercises
- Django Quiz
- Django Certificate
- Add Main Index Page
- Django Template Variables
- Filter Reference
- Django Variables
- Django Variables
- Django Tags
- Django For Loop
- QuerySet Introduction
- Add Static Files
DS Database Table
- Data Science - Database Table
ESP32 Projects
- Getting Started with ESP32
- ESP32 vs. ESP8266: Which Microcontroller Is Right for You?
- ESP32 Pinout Reference
- ESP32-WROOM-32 Pinout Reference
- ESP32 Basics: Analog-to-digital Converter (ADC)
- ESP32 Basics: Hall Effect Sensor
- ESP32 Basics: Capacitive Touch Pins
- ESP32 Basics: Generating a PWM Signal on the ESP32
- Configuring & Handling ESP32 GPIO Interrupts In Arduino IDE
- Insight Into ESP32 Sleep Modes & Their Power Consumption
- ESP32 Deep Sleep & Its Wake-up Sources
- Create A Simple ESP32 Web Server In Arduino IDE
- How to Create an ESP32 Web Server with WebSockets in Arduino IDE
- ESP32 Basics: Bluetooth Classic
- ESP32 Basics: Bluetooth Low Energy (BLE)
- How to Build a CAN Bus With ESP32
- Create A Simple ESP32 Web Server In Arduino IDE
- Interface DHT11 DHT22 with ESP32 & Display Values Using Web Server
- Create A Simple ESP32 Weather Station With BME280
- Interface Multiple DS18B20s with ESP32 & Display Values Using Web Server
- Getting Started With ESP32-CAM
- ESP32-CAM Pinout Reference
- Control WS2812B Addressable LEDs with ESP32 and WLED
- Getting started with Sound Reactive WLED
- How to Find and Change the MAC Address on ESP32
- How to Solve �A Fatal Error Occurred: Failed to Connect to ESP32: Timed Out Waiting for Packet Header�
- How to set up mDNS on an ESP32
- How to set a Static or Fixed IP Address on your ESP32
- ESP32 Basic Over The Air (OTA) Programming In Arduino IDE
- ESP32 Web Updater Over The Air (OTA) Programming In Arduino IDE
- Getting Date & Time From NTP Server With ESP32
- Interface OLED Graphic Display Module with ESP32
ESP8266 Projects
- Getting Started with ESP8266
- Installing ESP8266 Board in the Arduino IDE
- ESP8266 Pinout Reference
- Create A Simple ESP8266 NodeMCU Web Server In Arduino IDE
- Configuring & Handling ESP8266 GPIO Interrupts In Arduino IDE
- ESP8266 Over The Air (OTA) Programming In Arduino IDE
- Getting Date & Time From NTP Server With ESP8266 NodeMCU
- Control WS2812B Addressable LEDs with ESP8266 and WLED
- Interface DHT11 DHT22 w/ ESP8266 NodeMCU Using Web Server
- How to Use an I2C LCD Display With ESP8266
- Interface OLED Graphic Display Module with ESP8266 NodeMCU
- Display Values of Multiple DS18B20s on ESP8266 NodeMCU Web Server
- Create A Simple ESP8266 Weather Station With BME280
Excel
- Excel HOME
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- Double Click to Fill
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- Excel Relative Reference
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- Excel Arithmetic Operators
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- Excel Division
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- Excel Format Painter
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- Tables
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- Excel Conditional Format
- Excel Highlight Cell Rules
- Highlight Cell Rules
- HCR - Greater Than
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- HCR - Date Occurring
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- Excel Top Bottom Rules
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- Charts
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- Table Pivot Intro
- Case: Poke Mart
- Case: Poke Mart, Styling
- AND
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- Convert Time to Seconds
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- Remove Duplicates
- Introduction to Excel
- Learn Data Calculations
- Learn Data Visualization
- Learn to Create a Budget
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- Learn to Style in Excel
- Excel Exercises
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- Excel HOME
- Excel HOME
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GIT
- Git HOME
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- {{title}} Get Started
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GO
- Go Home
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HTML
- HTML HOME
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- HTML Block & Inline
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Example

Return the week number for a date:

SELECT WEEKOFYEAR("2017-06-15");

Definition and Usage

The WEEKOFYEAR() function returns the week number for a given date (a number from 1 to 53).

Note: This function assumes that the first day of the week is Monday and the first week of the year has more than 3 days.

Tip: Also look at the function.

Syntax

WEEKOFYEAR(date)

Parameter Values

Parameter	Description
date	Required. The date or datetime to extract the week number from

Technical Details

Works in:	From MySQL 4.0

More Examples

Example

Return the week number for a date:

SELECT WEEKOFYEAR("2017-01-01");

Example

Return the week number for the current system date:

SELECT WEEKOFYEAR(CURDATE());

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