AWS DMS transformation rules

To Nha Notes | July 15, 2023, 1:13 a.m.

Adding a column using an expression

{
    "rules": [
        {
            "rule-type": "selection", 
            "rule-id": "1",
            "rule-name": "1",
            "object-locator": {
                "schema-name": "Test",
                "table-name": "%"
            },
            "rule-action": "include"
        },
        {
            "rule-type": "transformation",
            "rule-id": "2",
            "rule-name": "2",
            "rule-action": "add-column",
            "rule-target": "column",
            "object-locator": {
                "schema-name": "Test",
                "table-name": "ITEM"
            },
            "value": "FULL_NAME",
            "expression": "$FIRST_NAME||'_'||$LAST_NAME",
            "data-type": {
                 "type": "string",
                 "length": 50
            }
        }
    ]
}
 

References

https://docs.aws.amazon.com/dms/latest/userguide/CHAP_Tasks.CustomizingTasks.TableMapping.SelectionTransformation.Expressions.html