There are several ways to schedule the Lambda function.
One method is using CloudWatch. Here’s how you would configure CloudWatch to invoke the Lambda functions.
To configure CloudWatch to invoke the Lambda functions:
- Open the Functions page on the Lambda console.
- Choose the Lambda function.
- Under Designer, choose Add trigger.
- Set the trigger type to CloudWatch Events/EventBridge.
- For Rule, choose Create a new rule.
- Fill in the Rule name and Rule description.
- For rule type, select Schedule expression.
- In the Schedule expression field, enter a cron expression. For example, cron(0 12 ? * MON-FRI *).
- Choose Add.
Moving Forward with Lambda
Migrating your Oracle database cron jobs to AWS Lambda represents more than a technical upgrade. By eliminating server maintenance overhead and paying only for actual compute time, your organization can redirect resources from infrastructure management to business-critical initiatives.
The serverless approach transforms how your database operations scale and respond to demand. Instead of maintaining dedicated servers for periodic tasks, Lambda functions execute precisely when needed, automatically scaling based on workload requirements. This shift reduces both operational complexity and infrastructure costs while improving reliability through AWS's built-in redundancy.
For Oracle environments running on AWS RDS, this migration path offers immediate benefits: simplified deployment processes, reduced maintenance windows, and enhanced integration with other AWS services.
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