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Description

This error signifies that an SQLScript procedure or function, when executed within the SAP HANA database layer of S/4HANA, is missing an expected output parameter. It commonly arises when a calling statement anticipates a return value or an OUT parameter that is not defined in the called routine's signature or is incorrectly referenced.

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Error Message

ERR_SQLSCRIPT_NO_OUTPUT_PARAM

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Known Causes

3 known causes

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Missing OUT Parameter Definition

The SQLScript procedure or function's signature does not include an `OUT` parameter, even though the calling code expects to receive one.

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Incorrect Calling Convention

The way the SQLScript procedure is being invoked does not correctly align with its defined output parameters, leading to a discrepancy.

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Outdated Procedure Reference

An SQLScript procedure's signature, specifically an `OUT` parameter, was changed or removed, but dependent calling objects still reference the old definition.

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Solutions

3 solutions available

1. Declare and Assign Output Parameters in SQLScript medium

Ensure all intended output parameters are declared and assigned a value within the SQLScript procedure.

1

Identify the SQLScript procedure that is throwing the error 2850. This is typically done by examining the application logs or tracing the execution path.

2

Open the SQLScript procedure in the SAP HANA Studio or SAP Business Application Studio (BAS) for editing.

3

Review the procedure's signature. If you intend to return values, ensure that `OUT` or `INOUT` parameters are declared in the procedure definition.

CREATE PROCEDURE "MY_SCHEMA"."MY_PROCEDURE" (IN p_input INT, OUT p_output VARCHAR(100)) AS ...

4

Within the procedure's body, explicitly assign a value to each declared `OUT` or `INOUT` parameter before the procedure exits. If no value is intended, remove the parameter from the signature.

p_output := 'Operation successful';
-- or if no output is needed:
-- DROP PROCEDURE "MY_SCHEMA"."MY_PROCEDURE"; -- (if it was mistakenly created with an output)

5

Save and activate the modified SQLScript procedure.

6

Re-run the application or transaction that triggered the error to verify the fix.

2. Correctly Call SQLScript Procedures with Output Parameters medium

When calling a SQLScript procedure that returns output parameters, ensure the calling program correctly handles these parameters.

1

Locate the code that calls the problematic SQLScript procedure. This could be in ABAP, a CDS view, or another SQLScript procedure.

2

Examine the procedure call. If the procedure has `OUT` or `INOUT` parameters, the calling context must provide variables or placeholders to receive these values. For example, in ABAP, you would use `EXPORTING` parameters.

CALL "MY_SCHEMA"."MY_PROCEDURE"(p_input => 123, p_output => ?);
-- In ABAP:
CALL "MY_SCHEMA"."MY_PROCEDURE"
  EXPORTING
    p_input = lv_input
  IMPORTING
    p_output = lv_output.

3

Ensure the data types of the receiving variables in the calling program match the data types of the `OUT` or `INOUT` parameters defined in the SQLScript procedure.

4

If the procedure was modified to no longer return an output parameter, update the calling code to reflect this change, removing the import parameter handling.

5

Test the calling program after making the necessary adjustments.

3. Review and Refactor Unnecessary Output Parameters easy

If a SQLScript procedure was designed with output parameters that are no longer needed, remove them from the procedure definition and its calls.

1

Analyze the business logic of the SQLScript procedure. Determine if the output parameters are genuinely required for the process or if they were part of an older design.

2

If an output parameter is not needed, modify the procedure's signature to remove it.

CREATE PROCEDURE "MY_SCHEMA"."MY_PROCEDURE" (IN p_input INT) AS ... -- Removed OUT p_output VARCHAR(100)

3

Remove any assignments to this now-removed output parameter within the procedure's body.

4

If the procedure is called from other applications or procedures, update those calling contexts to no longer expect or handle the removed output parameter.

5

Activate the modified procedure and test the calling applications.

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Related Errors

5 related errors

SAP S/4HANA Error 2850: SQLScript Missing Output Parameter