š„ Node.js + TypeScript + TypeORM Tutorial #26: Mastering WHERE Expressions in Queries!
0š Welcome to Tutorial #26 in our Node.js + TypeScript + TypeORM series! š In this video, we'll explore how to add WHERE expressions in TypeORM to filter your database queries efficiently. Learn to write clean and effective query conditions using TypeORM QueryBuilder. š»
š What you'll learn in this tutorial:
1ļø ā£ What is a WHERE expression and why itās important š
2ļø ā£ Adding simple and complex WHERE conditions in TypeORM š ļø
3ļø ā£ Using QueryBuilder for dynamic WHERE expressions š”
4ļø ā£ Real-world examples of filtering data with WHERE ā
5ļø ā£ Pro tips for optimizing queries in TypeORM š
š„ Perfect for developers who want to level up their database query skills in TypeORM and Node.js.
š¬ Have questions or need assistance? Drop your comments below!
š Donāt forget to like, subscribe, and share for more TypeORM tutorials!
#NodeJS #TypeScript #TypeORM #WHEREExpressions #SQLQueries #WebDevelopment š
Simple WHERE: Retrieves a user by firstName.
AND Condition: Retrieves users who are both isActive and registered.
OR Condition: Retrieves users where either firstName is "Timber" or lastName is "Doe".
IN Query: Retrieves users with specific ids.
Complex Query with Brackets: Retrieves users who are active and either have the firstName "Jane" or more than 5 photos.
Negated Complex Query with NotBrackets: Retrieves users who are registered but do not have firstName "Timber" or lastName "Wonder".
Using NotBrackets for Negated Complex Query
Complex Query with Brackets
Using IN with QueryBuilder
Retrieve Users with Multiple Conditions (using AND)
Retrieving Data Using QueryBuilder with WHERE Expressions
š„ Adding WHERE Expressions in TypeORM with Node.js and TypeScript š
š Node.js + TypeORM Tutorial: Master WHERE Clauses in Queries š”
š How to Use WHERE Expressions in TypeORM for Dynamic Filtering ā
š ļø TypeORM QueryBuilder Tutorial: Adding WHERE Conditions in Node.js š
š WHERE Clauses in TypeORM Explained Step-by-Step for Beginners š
š„ Mastering WHERE Expressions in TypeORM with Real-World Examples š
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