Build A Salon Appointment Scheduler - Backend Development - The
Por um escritor misterioso
Last updated 21 junho 2024
![Build A Salon Appointment Scheduler - Backend Development - The](https://global.discourse-cdn.com/freecodecamp/original/4X/f/b/d/fbd801b9cf17ba78e7903cc750ffb8c4e510fffe.png)
Hello, I’m stuck. Help. Don’t know what is wrong. Help. So I’m trying to check if the user inputs a valid service_id. This part is not working: SERVICE_ID_EXISTS=$($PSQL "SELECT name FROM services WHERE service_id = $SERVICE_ID_CHOSEN") if [[ -z $SERVICE_ID_EXISTS ]] then MAIN_MENU "No service with the number: $SERVICE_ID_CHOSEN" else echo "test print --> $SERVICE_ID_EXISTS" fi I want to check if the user types a number that corresponds to a service and if a
![Build A Salon Appointment Scheduler - Backend Development - The](https://d1krbhyfejrtpz.cloudfront.net/blog/wp-content/uploads/2023/10/25170440/Salon-Management-Software-Development-Perks-Features-and-Development-Process.jpg)
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![Build A Salon Appointment Scheduler - Backend Development - The](https://blog.cdn.cmarix.com/blog/wp-content/uploads/2023/06/Salon-Owners-1024x546.webp)
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![Build A Salon Appointment Scheduler - Backend Development - The](https://cdn.kodytechnolab.com/wp-content/uploads/2023/05/develop-salon-app-like-Style-Seat-2.webp)
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![Build A Salon Appointment Scheduler - Backend Development - The](https://www.apurple.co/wp-content/uploads/2022/09/salon-booking-app.jpg)
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![Build A Salon Appointment Scheduler - Backend Development - The](https://itechnolabs.ca/wp-content/uploads/2023/11/1.-How-to-Develop-a-Mobile-Banking-Application-Like-Chime-A-Quick-Guide.jpg)
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![Build A Salon Appointment Scheduler - Backend Development - The](https://www.sevensquaretech.com/wp-content/uploads/2023/06/Table-1.png)
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![Build A Salon Appointment Scheduler - Backend Development - The](https://nectarbits.com/blog/wp-content/uploads/2021/01/CT-salon-app-development-2.png)
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