You must define the output ports when you manually configure a SQL transformation. Define an output port for each stored procedure output parameter or for each port that a SELECT statement returns.

When you import a stored procedure, the Developer tool creates an output port for each output parameter that the procedure returns. If the procedure returns a result set, you must manually define the output ports in the result set. A stored procedure can return a result set and it can return output parameters that are not part of the result set in the same run. You must define the output ports for the result set fields and for the output parameters.

When you configure an output port, choose the native datatype for the port. The output port native datatype must match the datatype of the corresponding column in the database. When you configure the native datatype, the Developer tool defines the transformation datatype for the port.

For example, the SQL transformation contains the following SQL query for an Oracle database:

SELECT FirstName, LastName, Age FROM EMPLOYEES 

You might configure the following output ports and the native datatypes in the SQL transformation:

Output Port	Native Datatype	Transformation Datatype
FirstNm	varchar2	string
LastNm	varchar2	string
Age	number	double

The number of the output ports and the order of the output ports must match the number and the order of the columns that the query or stored procedure returns. When the number of output ports is more than the number of columns in the query or stored procedure, the extra ports return a null value. When the number of output ports is less than the number of columns in the SQL, the Data Integration Service generates a row error.

If you change the database type that the transformation connects to, the Developer tool changes the native types of the output ports. The Developer tool might not choose the correct datatype for all the ports. If you change the database type, verify that the native datatype for each output port is the same datatype as the column in the database. For example, the Developer tool might choose nVarchar2 for a Oracle database column. You might need to change the datatype to varchar2.

Configure output ports in the SQL transformation

Overview

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