In Laravel, database transactions are used to maintain data consistency by treating multiple operations as a single unit. They can be initiated with `DB::transaction` or the `startTransaction` and `commit` methods on the `DB` facade. Keeping transactions short, using try-catch blocks, and maintaining a consistent naming convention are best practices for effective use.
DevSecOps combines development, security, and operations to ensure secure and reliable software releases by integrating security into every stage of the development lifecycle, catching vulnerabilities early, reducing risk, and ensuring compliance with regulatory requirements.
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