Transformations

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Passing the full query

You can pass the full SQL query through an input field in the transformation. To pass the full query, create a query in the SQL editor that consists of one string variable to represent the full query:

~Query_Field~

To pass the full query, configure the source to pass the full query in an output field. Then, configure the SQL transformation to receive the query in the Query_Field input field.

The following image shows the transformation configuration:

On the SQL tab of the Properties panel, "Entered Query" is selected as the query type. The Fields tab in the Query section shows one incoming field, "Query_Field." In the query editor, the query contains one line: ~Query_Field~

Data Integration

replaces the

~Query_Field~

variable in the dynamic query with the SQL statements from the source. It prepares the query and sends it to the database to process. The database executes the query. The SQL transformation returns database errors to the SQLError output field.

When you pass the full query, you can pass more than one query statement for each input row. For example, the source might contain the following rows:

DELETE FROM Person WHERE LastName = ‘Jones’; INSERT INTO Person (LastName, Address) VALUES ('Smith', '38 Summit Drive')
DELETE FROM Person WHERE LastName = ‘Jones’; INSERT INTO Person (LastName, Address) VALUES ('Smith', '38 Summit Drive')
DELETE FROM Person WHERE LastName = ‘Russell’;

You can pass any type of query in the source data. When you configure SELECT statements in the query, you must configure output fields for the database columns that you retrieve from the database. When you mix SELECT statements and other types of queries, the output fields that represent database columns contain null values when no database columns are retrieved.

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Transformations

Transformations

Passing the full query

Passing the full query