SQL Joins vs In-app Joins

To run:

Name		Name	Last commit message	Last commit date
Latest commit History 5 Commits
.vscode		.vscode
.gitignore		.gitignore
.prettierrc.json		.prettierrc.json
README.md		README.md
db.ts		db.ts
main.ts		main.ts
package-lock.json		package-lock.json
package.json		package.json
query.ts		query.ts
timing.ts		timing.ts
tsconfig.json		tsconfig.json

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