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Description

This error occurs in SAP S/4HANA when custom SQLScript procedures or functions are executed, and an output parameter is not correctly defined or referenced as a variable. It specifically indicates that the expression assigned to an OUT parameter is not a valid variable, leading to a compilation or runtime failure within the database layer.

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Error Message

ERR_SQLSCRIPT_OUT_PARAM_VAR

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Known Causes

3 known causes

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Literal or Expression Assignment

An output parameter is assigned a constant value, a hardcoded literal, or a complex expression instead of a simple, declared variable. SQLScript requires output parameters to be bound to variables that can hold the result.

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Incorrect Variable Declaration

The variable intended to receive the output is either not properly declared within the correct scope, or it is declared with an incompatible data type for the output parameter, preventing proper assignment.

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Typo in Variable Name

A simple typographical error or a misspelled variable name used for the output parameter prevents the SQLScript engine from recognizing it as a valid variable, often treating it as an unknown identifier.

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Solutions

3 solutions available

1. Verify SQLScript Output Parameter Declaration easy

Ensure all declared output parameters in the SQLScript match their usage and data types.

1

Identify the SQLScript causing the error. This is typically found in ABAP programs, CDS views, or HANA procedures/functions that are being executed.

2

Examine the `OUT` or `OUT` parameters declared in the SQLScript's signature. Pay close attention to the parameter names and their associated data types.

Example SQLScript signature:
PROCEDURE MY_PROCEDURE (IN param1 INT, OUT result_param VARCHAR(100)) AS ...

3

Verify that each declared output parameter is actually assigned a value within the SQLScript's logic. Missing assignments can lead to this error.

Example assignment:
result_param := 'Success';

4

Confirm that the data types of the assigned values are compatible with the declared output parameter types. Implicit conversions might not always work as expected.

5

If the SQLScript is part of an ABAP program, check how the output parameters are being consumed. Ensure the receiving variables in ABAP have matching data types and lengths.

Example ABAP:
DATA lv_result TYPE c LENGTH 100.

2. Correct Data Type Mismatch in Output Parameters medium

Address inconsistencies between the declared data type of an output parameter and the data type of the value being assigned to it.

1

Locate the SQLScript and the specific line where an output parameter is being assigned a value.

2

Compare the data type of the variable or literal being assigned to the output parameter with the declared data type of the output parameter in the procedure/function signature.

Example scenario: Declared output parameter is VARCHAR(50), but a VARCHAR(100) is being assigned.
Or, declared output parameter is DECIMAL(10,2), but a STRING is being assigned.

3

If a mismatch is found, explicitly cast the assigned value to the declared data type of the output parameter or adjust the declared data type to accommodate the assigned value.

Option 1: Adjusting declared type (if appropriate)
PROCEDURE MY_PROCEDURE (IN param1 INT, OUT result_param VARCHAR(100)) AS ...

Option 2: Explicit casting
result_param := CAST('Some long string' AS VARCHAR(100));

4

If the SQLScript is called from ABAP, ensure the ABAP variable receiving the output parameter has a compatible data type and length. Consider using `TYPE` casting in ABAP if necessary.

Example ABAP adjustment:
DATA lv_result TYPE c LENGTH 100.

3. Review HANA Procedure/Function Logic for Unassigned Output Parameters medium

Thoroughly inspect the SQLScript's execution paths to ensure all declared output parameters are assigned a value in every possible scenario.

1

Open the SQLScript (HANA procedure or function) in the SAP HANA Studio or SAP Business Application Studio.

2

Analyze the control flow of the script. This includes `IF` statements, `CASE` statements, loops, and exception handling blocks.

3

For each declared output parameter, trace its potential assignment. Ensure that every branch of the control flow either assigns a value to the output parameter or handles the scenario where it might remain unassigned (e.g., by assigning a default value).

Example: If an IF condition is not met, an OUT parameter might not be assigned.
IF condition THEN
  out_param := 'Value A';
ELSE
  -- out_param might remain unassigned here if not explicitly set
  out_param := 'Default Value'; -- Ensure assignment in all paths
END IF;

4

Consider adding a default assignment to output parameters at the beginning of the script or within specific branches to guarantee they always have a value before the script exits.

Example default assignment:
PROCEDURE MY_PROCEDURE (IN param1 INT, OUT result_param VARCHAR(100)) AS
BEGIN
  result_param := ''; -- Default assignment
  IF param1 > 10 THEN
    result_param := 'Large';
  ELSE
    result_param := 'Small';
  END IF;
END;

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Related Errors

5 related errors

SAP S/4HANA Error 1282: Invalid SQLScript Output Parameter