fix(rdb): pgcron pt2

Author: ldecarvalho-doc

pages/managed-databases-for-postgresql-and-mysql/api-cli/using-pgcron.mdx

@@ -14,7 +14,7 @@ categories:
  - postgresql-and-mysql
 ---
 
-The pg_cron extension for PostgreSQL is used to execute periodic tasks. You can schedule SQL tasks, such as queries and data imports, to run at regular intervals. This allows you to automate the tasks to be run regularly, on a daily, weekly or monthly basis, for example.
+The pg_cron extension for PostgreSQL is used to execute periodic tasks. You can schedule SQL tasks, such as queries and data imports, using jobs that run at the intervals you set. This allows you to automate the tasks and run them regularly, on a daily, weekly or monthly basis, for example.
 
 The `pgcron` extension is available with Scaleway Managed Databases for PostgreSQL. The extension is natively loaded in the `shared_preload_libraries` of the Database Instances by default.
 
@@ -26,7 +26,6 @@ The `pgcron` extension is available with Scaleway Managed Databases for PostgreS
 
 ## Installing pgcron
 
-
 1. Run the following command to install the extension:
 
 ```sql
@@ -42,7 +41,28 @@ CREATE EXTENSION
 
 ## Scheduling jobs
 
-To schedule jobs, you can run the following commands:
+Jobs allow you to define the SQL command or task you want to run based on a cron schedule.
+
+To schedule jobs, you can run the following command in the SQL client:
+```sql
+SELECT cron.schedule(
+  '${JOB_NAME}',
+  '${SCHEDULE_SPEC}',
+  $$
+    DELETE FROM ${TABLE_NAME}
+    WHERE ${CONDITION_COLUMN} < now() - interval '${TIME_INTERVAL}'
+  $$
+);
+```
+
+Replace the variables with the corresponding information:
+
+- `${JOB_NAME}` - set a name for the job
+- `${SCHEDULE_SPEC}` - the schedule specification in cron format (e.g. 0 0 * * * for daily at midnight)
+- `${TABLE_NAME}` - the name of the table to delete from
+- `${CONDITION_COLUMN}` - the column to use for the deletion condition
+- `${TIME_INTERVAL}` - the time interval to use for the deletion condition (e.g. 1 week, 1 month, etc.)
+
 
 ```sql
 -- Delete old data on Saturday at 3:30am (GMT)