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Description

This error indicates that a parameter used in an SAP HANA SQLScript procedure or function has an incompatible or unsupported data type. It commonly arises when calling a procedure with arguments that do not match the defined parameter types, or during development when defining parameters with incorrect types for the intended operation.

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Error Message

ERR_SQLSCRIPT_PARAM_UNSUPPORTED_TYPE

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Known Causes

3 known causes

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Incorrect Parameter Data Type

The data type of an argument passed when calling an SQLScript procedure or function does not match the expected type defined in the procedure's signature.

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Invalid Parameter Definition

An SQLScript procedure or function was defined with a parameter type that is not supported by SAP HANA SQLScript for the specific context or operation.

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Failed Implicit Type Conversion

The database attempted an automatic conversion between data types, but the source and target types were fundamentally incompatible, leading to an unsupported type error.

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Solutions

3 solutions available

1. Adjust SQLScript Parameter Data Types medium

Modify the data types of parameters in your SQLScript to be supported by SAP HANA.

1

Identify the SQLScript that is failing. This is typically found in the error message or by tracing the execution flow leading to the error.

2

Examine the parameter declarations within the identified SQLScript. Look for data types that are not standard SQL or are specific to other database systems.

Example of an unsupported parameter declaration (hypothetical):
CREATE PROCEDURE MY_PROC (
  IN param1 NVARCHAR(255) ARRAY,
  IN param2 BLOB
) ...

3

Consult the SAP HANA SQL and System Views Reference documentation for a list of supported data types for SQLScript parameters. Common unsupported types include complex or proprietary types.

4

Modify the SQLScript to use compatible data types. For example, if you are using an array type, consider passing it as a table type or a string representation that can be parsed within the script. For BLOB/CLOB, consider using VARBINARY or CLOB if appropriate, or breaking down the data.

Example of a supported parameter declaration:
CREATE PROCEDURE MY_PROC (
  IN param1 TABLE(
    val VARCHAR(255)
  ),
  IN param2 VARBINARY(MAX)
) ...

5

Recompile or redeploy the modified SQLScript. Test the functionality to ensure the error is resolved and the script behaves as expected.

2. Update SAP HANA Database and S/4HANA Components advanced

Ensure your SAP HANA database and relevant S/4HANA components are at a supported patch level that addresses known issues with SQLScript parameter handling.

1

Check the current version and patch level of your SAP HANA database. Refer to SAP Notes and the SAP Support Portal for the latest recommended revisions.

2

Review SAP Notes related to error code 2849 or 'ERR_SQLSCRIPT_PARAM_UNSUPPORTED_TYPE' for your specific SAP HANA version. These notes often provide details on fixes included in specific support package stacks (SPS) or revisions.

3

Plan and execute the upgrade or patching of your SAP HANA database according to SAP's best practices. This may involve downtime and careful coordination.

4

Verify that your SAP S/4HANA application components are also at a compatible and up-to-date level. Sometimes, application code relies on specific HANA features that are only fully supported with certain HANA revisions.

5

After updating, re-test the functionality that triggered the error. If the error persists, it might indicate a deeper configuration issue or a need for further analysis.

3. Refactor Data Input for Stored Procedures/Functions medium

Re-architect how data is passed into stored procedures or functions to avoid unsupported parameter types.

1

Analyze the calling program or application that invokes the SQLScript. Understand how it constructs and passes the parameters.

2

If the application is passing complex data structures (e.g., nested objects, custom types) as parameters, consider alternative methods. This might involve serializing the data into a string (like JSON or XML) and passing it as a VARCHAR or CLOB, then parsing it within the SQLScript.

Example of passing JSON as a string:
-- In the calling program:
let jsonData = JSON.stringify(complexObject);

-- In the SQLScript:
CREATE PROCEDURE MY_PROC (
  IN json_data VARCHAR(5000)
) 
LANGUAGE SQLSCRIPT 
AS
BEGIN
  -- Parse json_data using HANA's JSON functions (e.g., JSON_PARSE)
  DECLARE parsed_data TABLE LIKE my_target_table;
  parsed_data = JSON_PARSE(:json_data);
  -- ... use parsed_data
END;

3

Alternatively, if the data represents a collection, consider passing it as a table type parameter. This requires defining a table type in HANA and structuring the input data accordingly.

Example of passing data as a table type:
-- Define a table type in HANA:
CREATE TYPE MY_TABLE_TYPE AS TABLE (
  column1 VARCHAR(100),
  column2 INTEGER
);

-- In the SQLScript:
CREATE PROCEDURE MY_PROC (
  IN data_table MY_TABLE_TYPE
) 
LANGUAGE SQLSCRIPT 
AS
BEGIN
  -- Use data_table directly
  SELECT * FROM :data_table;
END;

4

Implement the chosen refactoring strategy in both the calling application and the SQLScript. Thoroughly test the data transfer and processing.

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Related Errors

5 related errors

SAP S/4HANA Error 2849: Unsupported SQLScript Parameter Type